Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2010 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | package com.android.server.am; |
| 18 | |
| 19 | import com.android.internal.app.HeavyWeightSwitcherActivity; |
| 20 | import com.android.internal.os.BatteryStatsImpl; |
| 21 | import com.android.server.am.ActivityManagerService.PendingActivityLaunch; |
| 22 | |
| 23 | import android.app.Activity; |
| 24 | import android.app.AppGlobals; |
| 25 | import android.app.IActivityManager; |
| 26 | import static android.app.IActivityManager.START_CLASS_NOT_FOUND; |
| 27 | import static android.app.IActivityManager.START_DELIVERED_TO_TOP; |
| 28 | import static android.app.IActivityManager.START_FORWARD_AND_REQUEST_CONFLICT; |
| 29 | import static android.app.IActivityManager.START_INTENT_NOT_RESOLVED; |
| 30 | import static android.app.IActivityManager.START_PERMISSION_DENIED; |
| 31 | import static android.app.IActivityManager.START_RETURN_INTENT_TO_CALLER; |
| 32 | import static android.app.IActivityManager.START_SUCCESS; |
| 33 | import static android.app.IActivityManager.START_SWITCHES_CANCELED; |
| 34 | import static android.app.IActivityManager.START_TASK_TO_FRONT; |
| 35 | import android.app.IApplicationThread; |
| 36 | import android.app.PendingIntent; |
| 37 | import android.app.ResultInfo; |
| 38 | import android.app.IActivityManager.WaitResult; |
| 39 | import android.content.ComponentName; |
| 40 | import android.content.Context; |
| 41 | import android.content.IIntentSender; |
| 42 | import android.content.Intent; |
| 43 | import android.content.IntentSender; |
| 44 | import android.content.pm.ActivityInfo; |
| 45 | import android.content.pm.ApplicationInfo; |
| 46 | import android.content.pm.PackageManager; |
| 47 | import android.content.pm.ResolveInfo; |
| 48 | import android.content.res.Configuration; |
Dianne Hackborn | 0aae2d4 | 2010-12-07 23:51:29 -0800 | [diff] [blame] | 49 | import android.content.res.Resources; |
| 50 | import android.graphics.Bitmap; |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 51 | import android.net.Uri; |
| 52 | import android.os.Binder; |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 53 | import android.os.Handler; |
| 54 | import android.os.IBinder; |
| 55 | import android.os.Message; |
| 56 | import android.os.PowerManager; |
| 57 | import android.os.RemoteException; |
| 58 | import android.os.SystemClock; |
| 59 | import android.util.EventLog; |
| 60 | import android.util.Log; |
| 61 | import android.util.Slog; |
| 62 | import android.view.WindowManagerPolicy; |
| 63 | |
| 64 | import java.lang.ref.WeakReference; |
| 65 | import java.util.ArrayList; |
| 66 | import java.util.Iterator; |
| 67 | import java.util.List; |
| 68 | |
| 69 | /** |
| 70 | * State and management of a single stack of activities. |
| 71 | */ |
| 72 | public class ActivityStack { |
| 73 | static final String TAG = ActivityManagerService.TAG; |
| 74 | static final boolean localLOGV = ActivityManagerService.localLOGV; |
| 75 | static final boolean DEBUG_SWITCH = ActivityManagerService.DEBUG_SWITCH; |
| 76 | static final boolean DEBUG_PAUSE = ActivityManagerService.DEBUG_PAUSE; |
| 77 | static final boolean DEBUG_VISBILITY = ActivityManagerService.DEBUG_VISBILITY; |
| 78 | static final boolean DEBUG_USER_LEAVING = ActivityManagerService.DEBUG_USER_LEAVING; |
| 79 | static final boolean DEBUG_TRANSITION = ActivityManagerService.DEBUG_TRANSITION; |
| 80 | static final boolean DEBUG_RESULTS = ActivityManagerService.DEBUG_RESULTS; |
| 81 | static final boolean DEBUG_CONFIGURATION = ActivityManagerService.DEBUG_CONFIGURATION; |
| 82 | static final boolean DEBUG_TASKS = ActivityManagerService.DEBUG_TASKS; |
| 83 | |
| 84 | static final boolean VALIDATE_TOKENS = ActivityManagerService.VALIDATE_TOKENS; |
| 85 | |
| 86 | // How long we wait until giving up on the last activity telling us it |
| 87 | // is idle. |
| 88 | static final int IDLE_TIMEOUT = 10*1000; |
| 89 | |
| 90 | // How long we wait until giving up on the last activity to pause. This |
| 91 | // is short because it directly impacts the responsiveness of starting the |
| 92 | // next activity. |
| 93 | static final int PAUSE_TIMEOUT = 500; |
| 94 | |
Dianne Hackborn | 4eba96b | 2011-01-21 13:34:36 -0800 | [diff] [blame^] | 95 | // How long we can hold the sleep wake lock before giving up. |
| 96 | static final int SLEEP_TIMEOUT = 5*1000; |
| 97 | |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 98 | // How long we can hold the launch wake lock before giving up. |
| 99 | static final int LAUNCH_TIMEOUT = 10*1000; |
| 100 | |
| 101 | // How long we wait until giving up on an activity telling us it has |
| 102 | // finished destroying itself. |
| 103 | static final int DESTROY_TIMEOUT = 10*1000; |
| 104 | |
| 105 | // How long until we reset a task when the user returns to it. Currently |
Dianne Hackborn | 621e17d | 2010-11-22 15:59:56 -0800 | [diff] [blame] | 106 | // disabled. |
| 107 | static final long ACTIVITY_INACTIVE_RESET_TIME = 0; |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 108 | |
Dianne Hackborn | 0dad364 | 2010-09-09 21:25:35 -0700 | [diff] [blame] | 109 | // How long between activity launches that we consider safe to not warn |
| 110 | // the user about an unexpected activity being launched on top. |
| 111 | static final long START_WARN_TIME = 5*1000; |
| 112 | |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 113 | // Set to false to disable the preview that is shown while a new activity |
| 114 | // is being started. |
| 115 | static final boolean SHOW_APP_STARTING_PREVIEW = true; |
| 116 | |
| 117 | enum ActivityState { |
| 118 | INITIALIZING, |
| 119 | RESUMED, |
| 120 | PAUSING, |
| 121 | PAUSED, |
| 122 | STOPPING, |
| 123 | STOPPED, |
| 124 | FINISHING, |
| 125 | DESTROYING, |
| 126 | DESTROYED |
| 127 | } |
| 128 | |
| 129 | final ActivityManagerService mService; |
| 130 | final boolean mMainStack; |
| 131 | |
| 132 | final Context mContext; |
| 133 | |
| 134 | /** |
| 135 | * The back history of all previous (and possibly still |
| 136 | * running) activities. It contains HistoryRecord objects. |
| 137 | */ |
| 138 | final ArrayList mHistory = new ArrayList(); |
| 139 | |
| 140 | /** |
| 141 | * List of running activities, sorted by recent usage. |
| 142 | * The first entry in the list is the least recently used. |
| 143 | * It contains HistoryRecord objects. |
| 144 | */ |
| 145 | final ArrayList mLRUActivities = new ArrayList(); |
| 146 | |
| 147 | /** |
| 148 | * List of activities that are waiting for a new activity |
| 149 | * to become visible before completing whatever operation they are |
| 150 | * supposed to do. |
| 151 | */ |
| 152 | final ArrayList<ActivityRecord> mWaitingVisibleActivities |
| 153 | = new ArrayList<ActivityRecord>(); |
| 154 | |
| 155 | /** |
| 156 | * List of activities that are ready to be stopped, but waiting |
| 157 | * for the next activity to settle down before doing so. It contains |
| 158 | * HistoryRecord objects. |
| 159 | */ |
| 160 | final ArrayList<ActivityRecord> mStoppingActivities |
| 161 | = new ArrayList<ActivityRecord>(); |
| 162 | |
| 163 | /** |
Dianne Hackborn | 4eba96b | 2011-01-21 13:34:36 -0800 | [diff] [blame^] | 164 | * List of activities that are in the process of going to sleep. |
| 165 | */ |
| 166 | final ArrayList<ActivityRecord> mGoingToSleepActivities |
| 167 | = new ArrayList<ActivityRecord>(); |
| 168 | |
| 169 | /** |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 170 | * Animations that for the current transition have requested not to |
| 171 | * be considered for the transition animation. |
| 172 | */ |
| 173 | final ArrayList<ActivityRecord> mNoAnimActivities |
| 174 | = new ArrayList<ActivityRecord>(); |
| 175 | |
| 176 | /** |
| 177 | * List of activities that are ready to be finished, but waiting |
| 178 | * for the previous activity to settle down before doing so. It contains |
| 179 | * HistoryRecord objects. |
| 180 | */ |
| 181 | final ArrayList<ActivityRecord> mFinishingActivities |
| 182 | = new ArrayList<ActivityRecord>(); |
| 183 | |
| 184 | /** |
| 185 | * List of people waiting to find out about the next launched activity. |
| 186 | */ |
| 187 | final ArrayList<IActivityManager.WaitResult> mWaitingActivityLaunched |
| 188 | = new ArrayList<IActivityManager.WaitResult>(); |
| 189 | |
| 190 | /** |
| 191 | * List of people waiting to find out about the next visible activity. |
| 192 | */ |
| 193 | final ArrayList<IActivityManager.WaitResult> mWaitingActivityVisible |
| 194 | = new ArrayList<IActivityManager.WaitResult>(); |
| 195 | |
| 196 | /** |
| 197 | * Set when the system is going to sleep, until we have |
| 198 | * successfully paused the current activity and released our wake lock. |
| 199 | * At that point the system is allowed to actually sleep. |
| 200 | */ |
| 201 | final PowerManager.WakeLock mGoingToSleep; |
| 202 | |
| 203 | /** |
| 204 | * We don't want to allow the device to go to sleep while in the process |
| 205 | * of launching an activity. This is primarily to allow alarm intent |
| 206 | * receivers to launch an activity and get that to run before the device |
| 207 | * goes back to sleep. |
| 208 | */ |
| 209 | final PowerManager.WakeLock mLaunchingActivity; |
| 210 | |
| 211 | /** |
| 212 | * When we are in the process of pausing an activity, before starting the |
| 213 | * next one, this variable holds the activity that is currently being paused. |
| 214 | */ |
| 215 | ActivityRecord mPausingActivity = null; |
| 216 | |
| 217 | /** |
| 218 | * This is the last activity that we put into the paused state. This is |
| 219 | * used to determine if we need to do an activity transition while sleeping, |
| 220 | * when we normally hold the top activity paused. |
| 221 | */ |
| 222 | ActivityRecord mLastPausedActivity = null; |
| 223 | |
| 224 | /** |
| 225 | * Current activity that is resumed, or null if there is none. |
| 226 | */ |
| 227 | ActivityRecord mResumedActivity = null; |
| 228 | |
| 229 | /** |
Dianne Hackborn | 0dad364 | 2010-09-09 21:25:35 -0700 | [diff] [blame] | 230 | * This is the last activity that has been started. It is only used to |
| 231 | * identify when multiple activities are started at once so that the user |
| 232 | * can be warned they may not be in the activity they think they are. |
| 233 | */ |
| 234 | ActivityRecord mLastStartedActivity = null; |
| 235 | |
| 236 | /** |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 237 | * Set when we know we are going to be calling updateConfiguration() |
| 238 | * soon, so want to skip intermediate config checks. |
| 239 | */ |
| 240 | boolean mConfigWillChange; |
| 241 | |
| 242 | /** |
| 243 | * Set to indicate whether to issue an onUserLeaving callback when a |
| 244 | * newly launched activity is being brought in front of us. |
| 245 | */ |
| 246 | boolean mUserLeaving = false; |
| 247 | |
| 248 | long mInitialStartTime = 0; |
| 249 | |
Dianne Hackborn | 4eba96b | 2011-01-21 13:34:36 -0800 | [diff] [blame^] | 250 | /** |
| 251 | * Set when we have taken too long waiting to go to sleep. |
| 252 | */ |
| 253 | boolean mSleepTimeout = false; |
| 254 | |
Dianne Hackborn | 0aae2d4 | 2010-12-07 23:51:29 -0800 | [diff] [blame] | 255 | int mThumbnailWidth = -1; |
| 256 | int mThumbnailHeight = -1; |
| 257 | |
Dianne Hackborn | 4eba96b | 2011-01-21 13:34:36 -0800 | [diff] [blame^] | 258 | static final int SLEEP_TIMEOUT_MSG = 8; |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 259 | static final int PAUSE_TIMEOUT_MSG = 9; |
| 260 | static final int IDLE_TIMEOUT_MSG = 10; |
| 261 | static final int IDLE_NOW_MSG = 11; |
| 262 | static final int LAUNCH_TIMEOUT_MSG = 16; |
| 263 | static final int DESTROY_TIMEOUT_MSG = 17; |
| 264 | static final int RESUME_TOP_ACTIVITY_MSG = 19; |
| 265 | |
| 266 | final Handler mHandler = new Handler() { |
| 267 | //public Handler() { |
| 268 | // if (localLOGV) Slog.v(TAG, "Handler started!"); |
| 269 | //} |
| 270 | |
| 271 | public void handleMessage(Message msg) { |
| 272 | switch (msg.what) { |
Dianne Hackborn | 4eba96b | 2011-01-21 13:34:36 -0800 | [diff] [blame^] | 273 | case SLEEP_TIMEOUT_MSG: { |
| 274 | if (mService.isSleeping()) { |
| 275 | Slog.w(TAG, "Sleep timeout! Sleeping now."); |
| 276 | mSleepTimeout = true; |
| 277 | checkReadyForSleepLocked(); |
| 278 | } |
| 279 | } break; |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 280 | case PAUSE_TIMEOUT_MSG: { |
| 281 | IBinder token = (IBinder)msg.obj; |
| 282 | // We don't at this point know if the activity is fullscreen, |
| 283 | // so we need to be conservative and assume it isn't. |
| 284 | Slog.w(TAG, "Activity pause timeout for " + token); |
Dianne Hackborn | 0aae2d4 | 2010-12-07 23:51:29 -0800 | [diff] [blame] | 285 | activityPaused(token, true); |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 286 | } break; |
| 287 | case IDLE_TIMEOUT_MSG: { |
| 288 | if (mService.mDidDexOpt) { |
| 289 | mService.mDidDexOpt = false; |
| 290 | Message nmsg = mHandler.obtainMessage(IDLE_TIMEOUT_MSG); |
| 291 | nmsg.obj = msg.obj; |
| 292 | mHandler.sendMessageDelayed(nmsg, IDLE_TIMEOUT); |
| 293 | return; |
| 294 | } |
| 295 | // We don't at this point know if the activity is fullscreen, |
| 296 | // so we need to be conservative and assume it isn't. |
| 297 | IBinder token = (IBinder)msg.obj; |
| 298 | Slog.w(TAG, "Activity idle timeout for " + token); |
| 299 | activityIdleInternal(token, true, null); |
| 300 | } break; |
| 301 | case DESTROY_TIMEOUT_MSG: { |
| 302 | IBinder token = (IBinder)msg.obj; |
| 303 | // We don't at this point know if the activity is fullscreen, |
| 304 | // so we need to be conservative and assume it isn't. |
| 305 | Slog.w(TAG, "Activity destroy timeout for " + token); |
| 306 | activityDestroyed(token); |
| 307 | } break; |
| 308 | case IDLE_NOW_MSG: { |
| 309 | IBinder token = (IBinder)msg.obj; |
| 310 | activityIdleInternal(token, false, null); |
| 311 | } break; |
| 312 | case LAUNCH_TIMEOUT_MSG: { |
| 313 | if (mService.mDidDexOpt) { |
| 314 | mService.mDidDexOpt = false; |
| 315 | Message nmsg = mHandler.obtainMessage(LAUNCH_TIMEOUT_MSG); |
| 316 | mHandler.sendMessageDelayed(nmsg, LAUNCH_TIMEOUT); |
| 317 | return; |
| 318 | } |
| 319 | synchronized (mService) { |
| 320 | if (mLaunchingActivity.isHeld()) { |
| 321 | Slog.w(TAG, "Launch timeout has expired, giving up wake lock!"); |
| 322 | mLaunchingActivity.release(); |
| 323 | } |
| 324 | } |
| 325 | } break; |
| 326 | case RESUME_TOP_ACTIVITY_MSG: { |
| 327 | synchronized (mService) { |
| 328 | resumeTopActivityLocked(null); |
| 329 | } |
| 330 | } break; |
| 331 | } |
| 332 | } |
| 333 | }; |
| 334 | |
| 335 | ActivityStack(ActivityManagerService service, Context context, boolean mainStack) { |
| 336 | mService = service; |
| 337 | mContext = context; |
| 338 | mMainStack = mainStack; |
| 339 | PowerManager pm = |
| 340 | (PowerManager)context.getSystemService(Context.POWER_SERVICE); |
| 341 | mGoingToSleep = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "ActivityManager-Sleep"); |
| 342 | mLaunchingActivity = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "ActivityManager-Launch"); |
| 343 | mLaunchingActivity.setReferenceCounted(false); |
| 344 | } |
| 345 | |
| 346 | final ActivityRecord topRunningActivityLocked(ActivityRecord notTop) { |
| 347 | int i = mHistory.size()-1; |
| 348 | while (i >= 0) { |
| 349 | ActivityRecord r = (ActivityRecord)mHistory.get(i); |
| 350 | if (!r.finishing && r != notTop) { |
| 351 | return r; |
| 352 | } |
| 353 | i--; |
| 354 | } |
| 355 | return null; |
| 356 | } |
| 357 | |
| 358 | final ActivityRecord topRunningNonDelayedActivityLocked(ActivityRecord notTop) { |
| 359 | int i = mHistory.size()-1; |
| 360 | while (i >= 0) { |
| 361 | ActivityRecord r = (ActivityRecord)mHistory.get(i); |
| 362 | if (!r.finishing && !r.delayedResume && r != notTop) { |
| 363 | return r; |
| 364 | } |
| 365 | i--; |
| 366 | } |
| 367 | return null; |
| 368 | } |
| 369 | |
| 370 | /** |
| 371 | * This is a simplified version of topRunningActivityLocked that provides a number of |
| 372 | * optional skip-over modes. It is intended for use with the ActivityController hook only. |
| 373 | * |
| 374 | * @param token If non-null, any history records matching this token will be skipped. |
| 375 | * @param taskId If non-zero, we'll attempt to skip over records with the same task ID. |
| 376 | * |
| 377 | * @return Returns the HistoryRecord of the next activity on the stack. |
| 378 | */ |
| 379 | final ActivityRecord topRunningActivityLocked(IBinder token, int taskId) { |
| 380 | int i = mHistory.size()-1; |
| 381 | while (i >= 0) { |
| 382 | ActivityRecord r = (ActivityRecord)mHistory.get(i); |
| 383 | // Note: the taskId check depends on real taskId fields being non-zero |
| 384 | if (!r.finishing && (token != r) && (taskId != r.task.taskId)) { |
| 385 | return r; |
| 386 | } |
| 387 | i--; |
| 388 | } |
| 389 | return null; |
| 390 | } |
| 391 | |
| 392 | final int indexOfTokenLocked(IBinder token) { |
| 393 | int count = mHistory.size(); |
| 394 | |
| 395 | // convert the token to an entry in the history. |
| 396 | int index = -1; |
| 397 | for (int i=count-1; i>=0; i--) { |
| 398 | Object o = mHistory.get(i); |
| 399 | if (o == token) { |
| 400 | index = i; |
| 401 | break; |
| 402 | } |
| 403 | } |
| 404 | |
| 405 | return index; |
| 406 | } |
| 407 | |
| 408 | private final boolean updateLRUListLocked(ActivityRecord r) { |
| 409 | final boolean hadit = mLRUActivities.remove(r); |
| 410 | mLRUActivities.add(r); |
| 411 | return hadit; |
| 412 | } |
| 413 | |
| 414 | /** |
| 415 | * Returns the top activity in any existing task matching the given |
| 416 | * Intent. Returns null if no such task is found. |
| 417 | */ |
| 418 | private ActivityRecord findTaskLocked(Intent intent, ActivityInfo info) { |
| 419 | ComponentName cls = intent.getComponent(); |
| 420 | if (info.targetActivity != null) { |
| 421 | cls = new ComponentName(info.packageName, info.targetActivity); |
| 422 | } |
| 423 | |
| 424 | TaskRecord cp = null; |
| 425 | |
| 426 | final int N = mHistory.size(); |
| 427 | for (int i=(N-1); i>=0; i--) { |
| 428 | ActivityRecord r = (ActivityRecord)mHistory.get(i); |
| 429 | if (!r.finishing && r.task != cp |
| 430 | && r.launchMode != ActivityInfo.LAUNCH_SINGLE_INSTANCE) { |
| 431 | cp = r.task; |
| 432 | //Slog.i(TAG, "Comparing existing cls=" + r.task.intent.getComponent().flattenToShortString() |
| 433 | // + "/aff=" + r.task.affinity + " to new cls=" |
| 434 | // + intent.getComponent().flattenToShortString() + "/aff=" + taskAffinity); |
| 435 | if (r.task.affinity != null) { |
| 436 | if (r.task.affinity.equals(info.taskAffinity)) { |
| 437 | //Slog.i(TAG, "Found matching affinity!"); |
| 438 | return r; |
| 439 | } |
| 440 | } else if (r.task.intent != null |
| 441 | && r.task.intent.getComponent().equals(cls)) { |
| 442 | //Slog.i(TAG, "Found matching class!"); |
| 443 | //dump(); |
| 444 | //Slog.i(TAG, "For Intent " + intent + " bringing to top: " + r.intent); |
| 445 | return r; |
| 446 | } else if (r.task.affinityIntent != null |
| 447 | && r.task.affinityIntent.getComponent().equals(cls)) { |
| 448 | //Slog.i(TAG, "Found matching class!"); |
| 449 | //dump(); |
| 450 | //Slog.i(TAG, "For Intent " + intent + " bringing to top: " + r.intent); |
| 451 | return r; |
| 452 | } |
| 453 | } |
| 454 | } |
| 455 | |
| 456 | return null; |
| 457 | } |
| 458 | |
| 459 | /** |
| 460 | * Returns the first activity (starting from the top of the stack) that |
| 461 | * is the same as the given activity. Returns null if no such activity |
| 462 | * is found. |
| 463 | */ |
| 464 | private ActivityRecord findActivityLocked(Intent intent, ActivityInfo info) { |
| 465 | ComponentName cls = intent.getComponent(); |
| 466 | if (info.targetActivity != null) { |
| 467 | cls = new ComponentName(info.packageName, info.targetActivity); |
| 468 | } |
| 469 | |
| 470 | final int N = mHistory.size(); |
| 471 | for (int i=(N-1); i>=0; i--) { |
| 472 | ActivityRecord r = (ActivityRecord)mHistory.get(i); |
| 473 | if (!r.finishing) { |
| 474 | if (r.intent.getComponent().equals(cls)) { |
| 475 | //Slog.i(TAG, "Found matching class!"); |
| 476 | //dump(); |
| 477 | //Slog.i(TAG, "For Intent " + intent + " bringing to top: " + r.intent); |
| 478 | return r; |
| 479 | } |
| 480 | } |
| 481 | } |
| 482 | |
| 483 | return null; |
| 484 | } |
| 485 | |
| 486 | final boolean realStartActivityLocked(ActivityRecord r, |
| 487 | ProcessRecord app, boolean andResume, boolean checkConfig) |
| 488 | throws RemoteException { |
| 489 | |
| 490 | r.startFreezingScreenLocked(app, 0); |
| 491 | mService.mWindowManager.setAppVisibility(r, true); |
| 492 | |
| 493 | // Have the window manager re-evaluate the orientation of |
| 494 | // the screen based on the new activity order. Note that |
| 495 | // as a result of this, it can call back into the activity |
| 496 | // manager with a new orientation. We don't care about that, |
| 497 | // because the activity is not currently running so we are |
| 498 | // just restarting it anyway. |
| 499 | if (checkConfig) { |
| 500 | Configuration config = mService.mWindowManager.updateOrientationFromAppTokens( |
| 501 | mService.mConfiguration, |
| 502 | r.mayFreezeScreenLocked(app) ? r : null); |
| 503 | mService.updateConfigurationLocked(config, r); |
| 504 | } |
| 505 | |
| 506 | r.app = app; |
| 507 | |
| 508 | if (localLOGV) Slog.v(TAG, "Launching: " + r); |
| 509 | |
| 510 | int idx = app.activities.indexOf(r); |
| 511 | if (idx < 0) { |
| 512 | app.activities.add(r); |
| 513 | } |
| 514 | mService.updateLruProcessLocked(app, true, true); |
| 515 | |
| 516 | try { |
| 517 | if (app.thread == null) { |
| 518 | throw new RemoteException(); |
| 519 | } |
| 520 | List<ResultInfo> results = null; |
| 521 | List<Intent> newIntents = null; |
| 522 | if (andResume) { |
| 523 | results = r.results; |
| 524 | newIntents = r.newIntents; |
| 525 | } |
| 526 | if (DEBUG_SWITCH) Slog.v(TAG, "Launching: " + r |
| 527 | + " icicle=" + r.icicle |
| 528 | + " with results=" + results + " newIntents=" + newIntents |
| 529 | + " andResume=" + andResume); |
| 530 | if (andResume) { |
| 531 | EventLog.writeEvent(EventLogTags.AM_RESTART_ACTIVITY, |
| 532 | System.identityHashCode(r), |
| 533 | r.task.taskId, r.shortComponentName); |
| 534 | } |
| 535 | if (r.isHomeActivity) { |
| 536 | mService.mHomeProcess = app; |
| 537 | } |
| 538 | mService.ensurePackageDexOpt(r.intent.getComponent().getPackageName()); |
Dianne Hackborn | 4eba96b | 2011-01-21 13:34:36 -0800 | [diff] [blame^] | 539 | r.sleeping = false; |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 540 | app.thread.scheduleLaunchActivity(new Intent(r.intent), r, |
| 541 | System.identityHashCode(r), |
| 542 | r.info, r.icicle, results, newIntents, !andResume, |
| 543 | mService.isNextTransitionForward()); |
| 544 | |
Dianne Hackborn | 54e570f | 2010-10-04 18:32:32 -0700 | [diff] [blame] | 545 | if ((app.info.flags&ApplicationInfo.FLAG_CANT_SAVE_STATE) != 0) { |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 546 | // This may be a heavy-weight process! Note that the package |
| 547 | // manager will ensure that only activity can run in the main |
| 548 | // process of the .apk, which is the only thing that will be |
| 549 | // considered heavy-weight. |
| 550 | if (app.processName.equals(app.info.packageName)) { |
| 551 | if (mService.mHeavyWeightProcess != null |
| 552 | && mService.mHeavyWeightProcess != app) { |
| 553 | Log.w(TAG, "Starting new heavy weight process " + app |
| 554 | + " when already running " |
| 555 | + mService.mHeavyWeightProcess); |
| 556 | } |
| 557 | mService.mHeavyWeightProcess = app; |
| 558 | Message msg = mService.mHandler.obtainMessage( |
| 559 | ActivityManagerService.POST_HEAVY_NOTIFICATION_MSG); |
| 560 | msg.obj = r; |
| 561 | mService.mHandler.sendMessage(msg); |
| 562 | } |
| 563 | } |
| 564 | |
| 565 | } catch (RemoteException e) { |
| 566 | if (r.launchFailed) { |
| 567 | // This is the second time we failed -- finish activity |
| 568 | // and give up. |
| 569 | Slog.e(TAG, "Second failure launching " |
| 570 | + r.intent.getComponent().flattenToShortString() |
| 571 | + ", giving up", e); |
| 572 | mService.appDiedLocked(app, app.pid, app.thread); |
| 573 | requestFinishActivityLocked(r, Activity.RESULT_CANCELED, null, |
| 574 | "2nd-crash"); |
| 575 | return false; |
| 576 | } |
| 577 | |
| 578 | // This is the first time we failed -- restart process and |
| 579 | // retry. |
| 580 | app.activities.remove(r); |
| 581 | throw e; |
| 582 | } |
| 583 | |
| 584 | r.launchFailed = false; |
| 585 | if (updateLRUListLocked(r)) { |
| 586 | Slog.w(TAG, "Activity " + r |
| 587 | + " being launched, but already in LRU list"); |
| 588 | } |
| 589 | |
| 590 | if (andResume) { |
| 591 | // As part of the process of launching, ActivityThread also performs |
| 592 | // a resume. |
| 593 | r.state = ActivityState.RESUMED; |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 594 | r.stopped = false; |
| 595 | mResumedActivity = r; |
| 596 | r.task.touchActiveTime(); |
Dianne Hackborn | 88819b2 | 2010-12-21 18:18:02 -0800 | [diff] [blame] | 597 | if (mMainStack) { |
| 598 | mService.addRecentTaskLocked(r.task); |
| 599 | } |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 600 | completeResumeLocked(r); |
Dianne Hackborn | 4eba96b | 2011-01-21 13:34:36 -0800 | [diff] [blame^] | 601 | checkReadyForSleepLocked(); |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 602 | } else { |
| 603 | // This activity is not starting in the resumed state... which |
| 604 | // should look like we asked it to pause+stop (but remain visible), |
| 605 | // and it has done so and reported back the current icicle and |
| 606 | // other state. |
| 607 | r.state = ActivityState.STOPPED; |
| 608 | r.stopped = true; |
| 609 | } |
| 610 | |
Dianne Hackborn | 0aae2d4 | 2010-12-07 23:51:29 -0800 | [diff] [blame] | 611 | r.icicle = null; |
| 612 | r.haveState = false; |
| 613 | |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 614 | // Launch the new version setup screen if needed. We do this -after- |
| 615 | // launching the initial activity (that is, home), so that it can have |
| 616 | // a chance to initialize itself while in the background, making the |
| 617 | // switch back to it faster and look better. |
| 618 | if (mMainStack) { |
| 619 | mService.startSetupActivityLocked(); |
| 620 | } |
| 621 | |
| 622 | return true; |
| 623 | } |
| 624 | |
| 625 | private final void startSpecificActivityLocked(ActivityRecord r, |
| 626 | boolean andResume, boolean checkConfig) { |
| 627 | // Is this activity's application already running? |
| 628 | ProcessRecord app = mService.getProcessRecordLocked(r.processName, |
| 629 | r.info.applicationInfo.uid); |
| 630 | |
Dianne Hackborn | 0dad364 | 2010-09-09 21:25:35 -0700 | [diff] [blame] | 631 | if (r.launchTime == 0) { |
| 632 | r.launchTime = SystemClock.uptimeMillis(); |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 633 | if (mInitialStartTime == 0) { |
Dianne Hackborn | 0dad364 | 2010-09-09 21:25:35 -0700 | [diff] [blame] | 634 | mInitialStartTime = r.launchTime; |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 635 | } |
| 636 | } else if (mInitialStartTime == 0) { |
| 637 | mInitialStartTime = SystemClock.uptimeMillis(); |
| 638 | } |
| 639 | |
| 640 | if (app != null && app.thread != null) { |
| 641 | try { |
| 642 | realStartActivityLocked(r, app, andResume, checkConfig); |
| 643 | return; |
| 644 | } catch (RemoteException e) { |
| 645 | Slog.w(TAG, "Exception when starting activity " |
| 646 | + r.intent.getComponent().flattenToShortString(), e); |
| 647 | } |
| 648 | |
| 649 | // If a dead object exception was thrown -- fall through to |
| 650 | // restart the application. |
| 651 | } |
| 652 | |
| 653 | mService.startProcessLocked(r.processName, r.info.applicationInfo, true, 0, |
| 654 | "activity", r.intent.getComponent(), false); |
| 655 | } |
| 656 | |
Dianne Hackborn | 4eba96b | 2011-01-21 13:34:36 -0800 | [diff] [blame^] | 657 | void stopIfSleepingLocked() { |
| 658 | if (mService.isSleeping()) { |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 659 | if (!mGoingToSleep.isHeld()) { |
| 660 | mGoingToSleep.acquire(); |
| 661 | if (mLaunchingActivity.isHeld()) { |
| 662 | mLaunchingActivity.release(); |
| 663 | mService.mHandler.removeMessages(LAUNCH_TIMEOUT_MSG); |
| 664 | } |
| 665 | } |
Dianne Hackborn | 4eba96b | 2011-01-21 13:34:36 -0800 | [diff] [blame^] | 666 | mHandler.removeMessages(SLEEP_TIMEOUT_MSG); |
| 667 | Message msg = mHandler.obtainMessage(SLEEP_TIMEOUT_MSG); |
| 668 | mHandler.sendMessageDelayed(msg, SLEEP_TIMEOUT); |
| 669 | checkReadyForSleepLocked(); |
| 670 | } |
| 671 | } |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 672 | |
Dianne Hackborn | 4eba96b | 2011-01-21 13:34:36 -0800 | [diff] [blame^] | 673 | void awakeFromSleepingLocked() { |
| 674 | mHandler.removeMessages(SLEEP_TIMEOUT_MSG); |
| 675 | mSleepTimeout = false; |
| 676 | if (mGoingToSleep.isHeld()) { |
| 677 | mGoingToSleep.release(); |
| 678 | } |
| 679 | // Ensure activities are no longer sleeping. |
| 680 | for (int i=mHistory.size()-1; i>=0; i--) { |
| 681 | ActivityRecord r = (ActivityRecord)mHistory.get(i); |
| 682 | r.setSleeping(false); |
| 683 | } |
| 684 | mGoingToSleepActivities.clear(); |
| 685 | } |
| 686 | |
| 687 | void activitySleptLocked(ActivityRecord r) { |
| 688 | mGoingToSleepActivities.remove(r); |
| 689 | checkReadyForSleepLocked(); |
| 690 | } |
| 691 | |
| 692 | void checkReadyForSleepLocked() { |
| 693 | if (!mService.isSleeping()) { |
| 694 | // Do not care. |
| 695 | return; |
| 696 | } |
| 697 | |
| 698 | if (!mSleepTimeout) { |
| 699 | if (mResumedActivity != null) { |
| 700 | // Still have something resumed; can't sleep until it is paused. |
| 701 | if (DEBUG_PAUSE) Slog.v(TAG, "Sleep needs to pause " + mResumedActivity); |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 702 | if (DEBUG_USER_LEAVING) Slog.v(TAG, "Sleep => pause with userLeaving=false"); |
| 703 | startPausingLocked(false, true); |
Dianne Hackborn | 4eba96b | 2011-01-21 13:34:36 -0800 | [diff] [blame^] | 704 | return; |
| 705 | } |
| 706 | if (mPausingActivity != null) { |
| 707 | // Still waiting for something to pause; can't sleep yet. |
| 708 | if (DEBUG_PAUSE) Slog.v(TAG, "Sleep still waiting to pause " + mPausingActivity); |
| 709 | return; |
| 710 | } |
| 711 | |
| 712 | if (mStoppingActivities.size() > 0) { |
| 713 | // Still need to tell some activities to stop; can't sleep yet. |
| 714 | if (DEBUG_PAUSE) Slog.v(TAG, "Sleep still need to stop " |
| 715 | + mStoppingActivities.size() + " activities"); |
| 716 | Message msg = Message.obtain(); |
| 717 | msg.what = IDLE_NOW_MSG; |
| 718 | mHandler.sendMessage(msg); |
| 719 | return; |
| 720 | } |
| 721 | |
| 722 | ensureActivitiesVisibleLocked(null, 0); |
| 723 | |
| 724 | // Make sure any stopped but visible activities are now sleeping. |
| 725 | // This ensures that the activity's onStop() is called. |
| 726 | for (int i=mHistory.size()-1; i>=0; i--) { |
| 727 | ActivityRecord r = (ActivityRecord)mHistory.get(i); |
| 728 | if (r.state == ActivityState.STOPPING || r.state == ActivityState.STOPPED) { |
| 729 | r.setSleeping(true); |
| 730 | } |
| 731 | } |
| 732 | |
| 733 | if (mGoingToSleepActivities.size() > 0) { |
| 734 | // Still need to tell some activities to sleep; can't sleep yet. |
| 735 | if (DEBUG_PAUSE) Slog.v(TAG, "Sleep still need to sleep " |
| 736 | + mGoingToSleepActivities.size() + " activities"); |
| 737 | return; |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 738 | } |
| 739 | } |
Dianne Hackborn | 4eba96b | 2011-01-21 13:34:36 -0800 | [diff] [blame^] | 740 | |
| 741 | mHandler.removeMessages(SLEEP_TIMEOUT_MSG); |
| 742 | |
| 743 | if (mGoingToSleep.isHeld()) { |
| 744 | mGoingToSleep.release(); |
| 745 | } |
| 746 | if (mService.mShuttingDown) { |
| 747 | mService.notifyAll(); |
| 748 | } |
| 749 | |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 750 | } |
| 751 | |
Dianne Hackborn | d283593 | 2010-12-13 16:28:46 -0800 | [diff] [blame] | 752 | public final Bitmap screenshotActivities(ActivityRecord who) { |
Dianne Hackborn | 0aae2d4 | 2010-12-07 23:51:29 -0800 | [diff] [blame] | 753 | Resources res = mService.mContext.getResources(); |
| 754 | int w = mThumbnailWidth; |
| 755 | int h = mThumbnailHeight; |
| 756 | if (w < 0) { |
| 757 | mThumbnailWidth = w = |
| 758 | res.getDimensionPixelSize(com.android.internal.R.dimen.thumbnail_width); |
| 759 | mThumbnailHeight = h = |
| 760 | res.getDimensionPixelSize(com.android.internal.R.dimen.thumbnail_height); |
| 761 | } |
| 762 | |
| 763 | if (w > 0) { |
Dianne Hackborn | 7c8a4b3 | 2010-12-15 14:58:00 -0800 | [diff] [blame] | 764 | return mService.mWindowManager.screenshotApplications(who, w, h); |
Dianne Hackborn | 0aae2d4 | 2010-12-07 23:51:29 -0800 | [diff] [blame] | 765 | } |
| 766 | return null; |
| 767 | } |
| 768 | |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 769 | private final void startPausingLocked(boolean userLeaving, boolean uiSleeping) { |
| 770 | if (mPausingActivity != null) { |
| 771 | RuntimeException e = new RuntimeException(); |
| 772 | Slog.e(TAG, "Trying to pause when pause is already pending for " |
| 773 | + mPausingActivity, e); |
| 774 | } |
| 775 | ActivityRecord prev = mResumedActivity; |
| 776 | if (prev == null) { |
| 777 | RuntimeException e = new RuntimeException(); |
| 778 | Slog.e(TAG, "Trying to pause when nothing is resumed", e); |
| 779 | resumeTopActivityLocked(null); |
| 780 | return; |
| 781 | } |
| 782 | if (DEBUG_PAUSE) Slog.v(TAG, "Start pausing: " + prev); |
| 783 | mResumedActivity = null; |
| 784 | mPausingActivity = prev; |
| 785 | mLastPausedActivity = prev; |
| 786 | prev.state = ActivityState.PAUSING; |
| 787 | prev.task.touchActiveTime(); |
Dianne Hackborn | d283593 | 2010-12-13 16:28:46 -0800 | [diff] [blame] | 788 | prev.thumbnail = screenshotActivities(prev); |
| 789 | if (prev.task != null) { |
| 790 | prev.task.lastThumbnail = prev.thumbnail; |
| 791 | } |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 792 | |
| 793 | mService.updateCpuStats(); |
| 794 | |
| 795 | if (prev.app != null && prev.app.thread != null) { |
| 796 | if (DEBUG_PAUSE) Slog.v(TAG, "Enqueueing pending pause: " + prev); |
| 797 | try { |
| 798 | EventLog.writeEvent(EventLogTags.AM_PAUSE_ACTIVITY, |
| 799 | System.identityHashCode(prev), |
| 800 | prev.shortComponentName); |
| 801 | prev.app.thread.schedulePauseActivity(prev, prev.finishing, userLeaving, |
| 802 | prev.configChangeFlags); |
| 803 | if (mMainStack) { |
| 804 | mService.updateUsageStats(prev, false); |
| 805 | } |
| 806 | } catch (Exception e) { |
| 807 | // Ignore exception, if process died other code will cleanup. |
| 808 | Slog.w(TAG, "Exception thrown during pause", e); |
| 809 | mPausingActivity = null; |
| 810 | mLastPausedActivity = null; |
| 811 | } |
| 812 | } else { |
| 813 | mPausingActivity = null; |
| 814 | mLastPausedActivity = null; |
| 815 | } |
| 816 | |
| 817 | // If we are not going to sleep, we want to ensure the device is |
| 818 | // awake until the next activity is started. |
| 819 | if (!mService.mSleeping && !mService.mShuttingDown) { |
| 820 | mLaunchingActivity.acquire(); |
| 821 | if (!mHandler.hasMessages(LAUNCH_TIMEOUT_MSG)) { |
| 822 | // To be safe, don't allow the wake lock to be held for too long. |
| 823 | Message msg = mHandler.obtainMessage(LAUNCH_TIMEOUT_MSG); |
| 824 | mHandler.sendMessageDelayed(msg, LAUNCH_TIMEOUT); |
| 825 | } |
| 826 | } |
| 827 | |
| 828 | |
| 829 | if (mPausingActivity != null) { |
| 830 | // Have the window manager pause its key dispatching until the new |
| 831 | // activity has started. If we're pausing the activity just because |
| 832 | // the screen is being turned off and the UI is sleeping, don't interrupt |
| 833 | // key dispatch; the same activity will pick it up again on wakeup. |
| 834 | if (!uiSleeping) { |
| 835 | prev.pauseKeyDispatchingLocked(); |
| 836 | } else { |
| 837 | if (DEBUG_PAUSE) Slog.v(TAG, "Key dispatch not paused for screen off"); |
| 838 | } |
| 839 | |
| 840 | // Schedule a pause timeout in case the app doesn't respond. |
| 841 | // We don't give it much time because this directly impacts the |
| 842 | // responsiveness seen by the user. |
| 843 | Message msg = mHandler.obtainMessage(PAUSE_TIMEOUT_MSG); |
| 844 | msg.obj = prev; |
| 845 | mHandler.sendMessageDelayed(msg, PAUSE_TIMEOUT); |
| 846 | if (DEBUG_PAUSE) Slog.v(TAG, "Waiting for pause to complete..."); |
| 847 | } else { |
| 848 | // This activity failed to schedule the |
| 849 | // pause, so just treat it as being paused now. |
| 850 | if (DEBUG_PAUSE) Slog.v(TAG, "Activity not running, resuming next."); |
| 851 | resumeTopActivityLocked(null); |
| 852 | } |
| 853 | } |
| 854 | |
Dianne Hackborn | 0aae2d4 | 2010-12-07 23:51:29 -0800 | [diff] [blame] | 855 | final void activityPaused(IBinder token, boolean timeout) { |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 856 | if (DEBUG_PAUSE) Slog.v( |
Dianne Hackborn | 0aae2d4 | 2010-12-07 23:51:29 -0800 | [diff] [blame] | 857 | TAG, "Activity paused: token=" + token + ", timeout=" + timeout); |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 858 | |
| 859 | ActivityRecord r = null; |
| 860 | |
| 861 | synchronized (mService) { |
| 862 | int index = indexOfTokenLocked(token); |
| 863 | if (index >= 0) { |
| 864 | r = (ActivityRecord)mHistory.get(index); |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 865 | mHandler.removeMessages(PAUSE_TIMEOUT_MSG, r); |
| 866 | if (mPausingActivity == r) { |
| 867 | r.state = ActivityState.PAUSED; |
| 868 | completePauseLocked(); |
| 869 | } else { |
| 870 | EventLog.writeEvent(EventLogTags.AM_FAILED_TO_PAUSE, |
| 871 | System.identityHashCode(r), r.shortComponentName, |
| 872 | mPausingActivity != null |
| 873 | ? mPausingActivity.shortComponentName : "(none)"); |
| 874 | } |
| 875 | } |
| 876 | } |
| 877 | } |
| 878 | |
| 879 | private final void completePauseLocked() { |
| 880 | ActivityRecord prev = mPausingActivity; |
| 881 | if (DEBUG_PAUSE) Slog.v(TAG, "Complete pause: " + prev); |
| 882 | |
| 883 | if (prev != null) { |
| 884 | if (prev.finishing) { |
| 885 | if (DEBUG_PAUSE) Slog.v(TAG, "Executing finish of activity: " + prev); |
| 886 | prev = finishCurrentActivityLocked(prev, FINISH_AFTER_VISIBLE); |
| 887 | } else if (prev.app != null) { |
| 888 | if (DEBUG_PAUSE) Slog.v(TAG, "Enqueueing pending stop: " + prev); |
| 889 | if (prev.waitingVisible) { |
| 890 | prev.waitingVisible = false; |
| 891 | mWaitingVisibleActivities.remove(prev); |
| 892 | if (DEBUG_SWITCH || DEBUG_PAUSE) Slog.v( |
| 893 | TAG, "Complete pause, no longer waiting: " + prev); |
| 894 | } |
| 895 | if (prev.configDestroy) { |
| 896 | // The previous is being paused because the configuration |
| 897 | // is changing, which means it is actually stopping... |
| 898 | // To juggle the fact that we are also starting a new |
| 899 | // instance right now, we need to first completely stop |
| 900 | // the current instance before starting the new one. |
| 901 | if (DEBUG_PAUSE) Slog.v(TAG, "Destroying after pause: " + prev); |
| 902 | destroyActivityLocked(prev, true); |
| 903 | } else { |
| 904 | mStoppingActivities.add(prev); |
| 905 | if (mStoppingActivities.size() > 3) { |
| 906 | // If we already have a few activities waiting to stop, |
| 907 | // then give up on things going idle and start clearing |
| 908 | // them out. |
| 909 | if (DEBUG_PAUSE) Slog.v(TAG, "To many pending stops, forcing idle"); |
| 910 | Message msg = Message.obtain(); |
| 911 | msg.what = IDLE_NOW_MSG; |
| 912 | mHandler.sendMessage(msg); |
Dianne Hackborn | 4eba96b | 2011-01-21 13:34:36 -0800 | [diff] [blame^] | 913 | } else { |
| 914 | checkReadyForSleepLocked(); |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 915 | } |
| 916 | } |
| 917 | } else { |
| 918 | if (DEBUG_PAUSE) Slog.v(TAG, "App died during pause, not stopping: " + prev); |
| 919 | prev = null; |
| 920 | } |
| 921 | mPausingActivity = null; |
| 922 | } |
| 923 | |
Dianne Hackborn | 4eba96b | 2011-01-21 13:34:36 -0800 | [diff] [blame^] | 924 | if (!mService.isSleeping()) { |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 925 | resumeTopActivityLocked(prev); |
| 926 | } else { |
Dianne Hackborn | 4eba96b | 2011-01-21 13:34:36 -0800 | [diff] [blame^] | 927 | checkReadyForSleepLocked(); |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 928 | } |
| 929 | |
| 930 | if (prev != null) { |
| 931 | prev.resumeKeyDispatchingLocked(); |
| 932 | } |
| 933 | |
| 934 | if (prev.app != null && prev.cpuTimeAtResume > 0 |
| 935 | && mService.mBatteryStatsService.isOnBattery()) { |
| 936 | long diff = 0; |
| 937 | synchronized (mService.mProcessStatsThread) { |
| 938 | diff = mService.mProcessStats.getCpuTimeForPid(prev.app.pid) |
| 939 | - prev.cpuTimeAtResume; |
| 940 | } |
| 941 | if (diff > 0) { |
| 942 | BatteryStatsImpl bsi = mService.mBatteryStatsService.getActiveStatistics(); |
| 943 | synchronized (bsi) { |
| 944 | BatteryStatsImpl.Uid.Proc ps = |
| 945 | bsi.getProcessStatsLocked(prev.info.applicationInfo.uid, |
| 946 | prev.info.packageName); |
| 947 | if (ps != null) { |
| 948 | ps.addForegroundTimeLocked(diff); |
| 949 | } |
| 950 | } |
| 951 | } |
| 952 | } |
| 953 | prev.cpuTimeAtResume = 0; // reset it |
| 954 | } |
| 955 | |
| 956 | /** |
| 957 | * Once we know that we have asked an application to put an activity in |
| 958 | * the resumed state (either by launching it or explicitly telling it), |
| 959 | * this function updates the rest of our state to match that fact. |
| 960 | */ |
| 961 | private final void completeResumeLocked(ActivityRecord next) { |
| 962 | next.idle = false; |
| 963 | next.results = null; |
| 964 | next.newIntents = null; |
| 965 | |
| 966 | // schedule an idle timeout in case the app doesn't do it for us. |
| 967 | Message msg = mHandler.obtainMessage(IDLE_TIMEOUT_MSG); |
| 968 | msg.obj = next; |
| 969 | mHandler.sendMessageDelayed(msg, IDLE_TIMEOUT); |
| 970 | |
| 971 | if (false) { |
| 972 | // The activity was never told to pause, so just keep |
| 973 | // things going as-is. To maintain our own state, |
| 974 | // we need to emulate it coming back and saying it is |
| 975 | // idle. |
| 976 | msg = mHandler.obtainMessage(IDLE_NOW_MSG); |
| 977 | msg.obj = next; |
| 978 | mHandler.sendMessage(msg); |
| 979 | } |
| 980 | |
| 981 | if (mMainStack) { |
| 982 | mService.reportResumedActivityLocked(next); |
| 983 | } |
| 984 | |
| 985 | next.thumbnail = null; |
| 986 | if (mMainStack) { |
| 987 | mService.setFocusedActivityLocked(next); |
| 988 | } |
| 989 | next.resumeKeyDispatchingLocked(); |
| 990 | ensureActivitiesVisibleLocked(null, 0); |
| 991 | mService.mWindowManager.executeAppTransition(); |
| 992 | mNoAnimActivities.clear(); |
| 993 | |
| 994 | // Mark the point when the activity is resuming |
| 995 | // TODO: To be more accurate, the mark should be before the onCreate, |
| 996 | // not after the onResume. But for subsequent starts, onResume is fine. |
| 997 | if (next.app != null) { |
| 998 | synchronized (mService.mProcessStatsThread) { |
| 999 | next.cpuTimeAtResume = mService.mProcessStats.getCpuTimeForPid(next.app.pid); |
| 1000 | } |
| 1001 | } else { |
| 1002 | next.cpuTimeAtResume = 0; // Couldn't get the cpu time of process |
| 1003 | } |
| 1004 | } |
| 1005 | |
| 1006 | /** |
| 1007 | * Make sure that all activities that need to be visible (that is, they |
| 1008 | * currently can be seen by the user) actually are. |
| 1009 | */ |
| 1010 | final void ensureActivitiesVisibleLocked(ActivityRecord top, |
| 1011 | ActivityRecord starting, String onlyThisProcess, int configChanges) { |
| 1012 | if (DEBUG_VISBILITY) Slog.v( |
| 1013 | TAG, "ensureActivitiesVisible behind " + top |
| 1014 | + " configChanges=0x" + Integer.toHexString(configChanges)); |
| 1015 | |
| 1016 | // If the top activity is not fullscreen, then we need to |
| 1017 | // make sure any activities under it are now visible. |
| 1018 | final int count = mHistory.size(); |
| 1019 | int i = count-1; |
| 1020 | while (mHistory.get(i) != top) { |
| 1021 | i--; |
| 1022 | } |
| 1023 | ActivityRecord r; |
| 1024 | boolean behindFullscreen = false; |
| 1025 | for (; i>=0; i--) { |
| 1026 | r = (ActivityRecord)mHistory.get(i); |
| 1027 | if (DEBUG_VISBILITY) Slog.v( |
| 1028 | TAG, "Make visible? " + r + " finishing=" + r.finishing |
| 1029 | + " state=" + r.state); |
| 1030 | if (r.finishing) { |
| 1031 | continue; |
| 1032 | } |
| 1033 | |
| 1034 | final boolean doThisProcess = onlyThisProcess == null |
| 1035 | || onlyThisProcess.equals(r.processName); |
| 1036 | |
| 1037 | // First: if this is not the current activity being started, make |
| 1038 | // sure it matches the current configuration. |
| 1039 | if (r != starting && doThisProcess) { |
| 1040 | ensureActivityConfigurationLocked(r, 0); |
| 1041 | } |
| 1042 | |
| 1043 | if (r.app == null || r.app.thread == null) { |
| 1044 | if (onlyThisProcess == null |
| 1045 | || onlyThisProcess.equals(r.processName)) { |
| 1046 | // This activity needs to be visible, but isn't even |
| 1047 | // running... get it started, but don't resume it |
| 1048 | // at this point. |
| 1049 | if (DEBUG_VISBILITY) Slog.v( |
| 1050 | TAG, "Start and freeze screen for " + r); |
| 1051 | if (r != starting) { |
| 1052 | r.startFreezingScreenLocked(r.app, configChanges); |
| 1053 | } |
| 1054 | if (!r.visible) { |
| 1055 | if (DEBUG_VISBILITY) Slog.v( |
| 1056 | TAG, "Starting and making visible: " + r); |
| 1057 | mService.mWindowManager.setAppVisibility(r, true); |
| 1058 | } |
| 1059 | if (r != starting) { |
| 1060 | startSpecificActivityLocked(r, false, false); |
| 1061 | } |
| 1062 | } |
| 1063 | |
| 1064 | } else if (r.visible) { |
| 1065 | // If this activity is already visible, then there is nothing |
| 1066 | // else to do here. |
| 1067 | if (DEBUG_VISBILITY) Slog.v( |
| 1068 | TAG, "Skipping: already visible at " + r); |
| 1069 | r.stopFreezingScreenLocked(false); |
| 1070 | |
| 1071 | } else if (onlyThisProcess == null) { |
| 1072 | // This activity is not currently visible, but is running. |
| 1073 | // Tell it to become visible. |
| 1074 | r.visible = true; |
| 1075 | if (r.state != ActivityState.RESUMED && r != starting) { |
| 1076 | // If this activity is paused, tell it |
| 1077 | // to now show its window. |
| 1078 | if (DEBUG_VISBILITY) Slog.v( |
| 1079 | TAG, "Making visible and scheduling visibility: " + r); |
| 1080 | try { |
| 1081 | mService.mWindowManager.setAppVisibility(r, true); |
Dianne Hackborn | 4eba96b | 2011-01-21 13:34:36 -0800 | [diff] [blame^] | 1082 | r.sleeping = false; |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 1083 | r.app.thread.scheduleWindowVisibility(r, true); |
| 1084 | r.stopFreezingScreenLocked(false); |
| 1085 | } catch (Exception e) { |
| 1086 | // Just skip on any failure; we'll make it |
| 1087 | // visible when it next restarts. |
| 1088 | Slog.w(TAG, "Exception thrown making visibile: " |
| 1089 | + r.intent.getComponent(), e); |
| 1090 | } |
| 1091 | } |
| 1092 | } |
| 1093 | |
| 1094 | // Aggregate current change flags. |
| 1095 | configChanges |= r.configChangeFlags; |
| 1096 | |
| 1097 | if (r.fullscreen) { |
| 1098 | // At this point, nothing else needs to be shown |
| 1099 | if (DEBUG_VISBILITY) Slog.v( |
| 1100 | TAG, "Stopping: fullscreen at " + r); |
| 1101 | behindFullscreen = true; |
| 1102 | i--; |
| 1103 | break; |
| 1104 | } |
| 1105 | } |
| 1106 | |
| 1107 | // Now for any activities that aren't visible to the user, make |
| 1108 | // sure they no longer are keeping the screen frozen. |
| 1109 | while (i >= 0) { |
| 1110 | r = (ActivityRecord)mHistory.get(i); |
| 1111 | if (DEBUG_VISBILITY) Slog.v( |
| 1112 | TAG, "Make invisible? " + r + " finishing=" + r.finishing |
| 1113 | + " state=" + r.state |
| 1114 | + " behindFullscreen=" + behindFullscreen); |
| 1115 | if (!r.finishing) { |
| 1116 | if (behindFullscreen) { |
| 1117 | if (r.visible) { |
| 1118 | if (DEBUG_VISBILITY) Slog.v( |
| 1119 | TAG, "Making invisible: " + r); |
| 1120 | r.visible = false; |
| 1121 | try { |
| 1122 | mService.mWindowManager.setAppVisibility(r, false); |
| 1123 | if ((r.state == ActivityState.STOPPING |
| 1124 | || r.state == ActivityState.STOPPED) |
| 1125 | && r.app != null && r.app.thread != null) { |
| 1126 | if (DEBUG_VISBILITY) Slog.v( |
| 1127 | TAG, "Scheduling invisibility: " + r); |
| 1128 | r.app.thread.scheduleWindowVisibility(r, false); |
| 1129 | } |
| 1130 | } catch (Exception e) { |
| 1131 | // Just skip on any failure; we'll make it |
| 1132 | // visible when it next restarts. |
| 1133 | Slog.w(TAG, "Exception thrown making hidden: " |
| 1134 | + r.intent.getComponent(), e); |
| 1135 | } |
| 1136 | } else { |
| 1137 | if (DEBUG_VISBILITY) Slog.v( |
| 1138 | TAG, "Already invisible: " + r); |
| 1139 | } |
| 1140 | } else if (r.fullscreen) { |
| 1141 | if (DEBUG_VISBILITY) Slog.v( |
| 1142 | TAG, "Now behindFullscreen: " + r); |
| 1143 | behindFullscreen = true; |
| 1144 | } |
| 1145 | } |
| 1146 | i--; |
| 1147 | } |
| 1148 | } |
| 1149 | |
| 1150 | /** |
| 1151 | * Version of ensureActivitiesVisible that can easily be called anywhere. |
| 1152 | */ |
| 1153 | final void ensureActivitiesVisibleLocked(ActivityRecord starting, |
| 1154 | int configChanges) { |
| 1155 | ActivityRecord r = topRunningActivityLocked(null); |
| 1156 | if (r != null) { |
| 1157 | ensureActivitiesVisibleLocked(r, starting, null, configChanges); |
| 1158 | } |
| 1159 | } |
| 1160 | |
| 1161 | /** |
| 1162 | * Ensure that the top activity in the stack is resumed. |
| 1163 | * |
| 1164 | * @param prev The previously resumed activity, for when in the process |
| 1165 | * of pausing; can be null to call from elsewhere. |
| 1166 | * |
| 1167 | * @return Returns true if something is being resumed, or false if |
| 1168 | * nothing happened. |
| 1169 | */ |
| 1170 | final boolean resumeTopActivityLocked(ActivityRecord prev) { |
| 1171 | // Find the first activity that is not finishing. |
| 1172 | ActivityRecord next = topRunningActivityLocked(null); |
| 1173 | |
| 1174 | // Remember how we'll process this pause/resume situation, and ensure |
| 1175 | // that the state is reset however we wind up proceeding. |
| 1176 | final boolean userLeaving = mUserLeaving; |
| 1177 | mUserLeaving = false; |
| 1178 | |
| 1179 | if (next == null) { |
| 1180 | // There are no more activities! Let's just start up the |
| 1181 | // Launcher... |
| 1182 | if (mMainStack) { |
| 1183 | return mService.startHomeActivityLocked(); |
| 1184 | } |
| 1185 | } |
| 1186 | |
| 1187 | next.delayedResume = false; |
| 1188 | |
| 1189 | // If the top activity is the resumed one, nothing to do. |
| 1190 | if (mResumedActivity == next && next.state == ActivityState.RESUMED) { |
| 1191 | // Make sure we have executed any pending transitions, since there |
| 1192 | // should be nothing left to do at this point. |
| 1193 | mService.mWindowManager.executeAppTransition(); |
| 1194 | mNoAnimActivities.clear(); |
| 1195 | return false; |
| 1196 | } |
| 1197 | |
| 1198 | // If we are sleeping, and there is no resumed activity, and the top |
| 1199 | // activity is paused, well that is the state we want. |
| 1200 | if ((mService.mSleeping || mService.mShuttingDown) |
| 1201 | && mLastPausedActivity == next && next.state == ActivityState.PAUSED) { |
| 1202 | // Make sure we have executed any pending transitions, since there |
| 1203 | // should be nothing left to do at this point. |
| 1204 | mService.mWindowManager.executeAppTransition(); |
| 1205 | mNoAnimActivities.clear(); |
| 1206 | return false; |
| 1207 | } |
| 1208 | |
| 1209 | // The activity may be waiting for stop, but that is no longer |
| 1210 | // appropriate for it. |
| 1211 | mStoppingActivities.remove(next); |
Dianne Hackborn | 4eba96b | 2011-01-21 13:34:36 -0800 | [diff] [blame^] | 1212 | mGoingToSleepActivities.remove(next); |
| 1213 | next.sleeping = false; |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 1214 | mWaitingVisibleActivities.remove(next); |
| 1215 | |
| 1216 | if (DEBUG_SWITCH) Slog.v(TAG, "Resuming " + next); |
| 1217 | |
| 1218 | // If we are currently pausing an activity, then don't do anything |
| 1219 | // until that is done. |
| 1220 | if (mPausingActivity != null) { |
| 1221 | if (DEBUG_SWITCH) Slog.v(TAG, "Skip resume: pausing=" + mPausingActivity); |
| 1222 | return false; |
| 1223 | } |
| 1224 | |
Dianne Hackborn | 0dad364 | 2010-09-09 21:25:35 -0700 | [diff] [blame] | 1225 | // Okay we are now going to start a switch, to 'next'. We may first |
| 1226 | // have to pause the current activity, but this is an important point |
| 1227 | // where we have decided to go to 'next' so keep track of that. |
Dianne Hackborn | 034093a4 | 2010-09-20 22:24:38 -0700 | [diff] [blame] | 1228 | // XXX "App Redirected" dialog is getting too many false positives |
| 1229 | // at this point, so turn off for now. |
| 1230 | if (false) { |
| 1231 | if (mLastStartedActivity != null && !mLastStartedActivity.finishing) { |
| 1232 | long now = SystemClock.uptimeMillis(); |
| 1233 | final boolean inTime = mLastStartedActivity.startTime != 0 |
| 1234 | && (mLastStartedActivity.startTime + START_WARN_TIME) >= now; |
| 1235 | final int lastUid = mLastStartedActivity.info.applicationInfo.uid; |
| 1236 | final int nextUid = next.info.applicationInfo.uid; |
| 1237 | if (inTime && lastUid != nextUid |
| 1238 | && lastUid != next.launchedFromUid |
| 1239 | && mService.checkPermission( |
| 1240 | android.Manifest.permission.STOP_APP_SWITCHES, |
| 1241 | -1, next.launchedFromUid) |
| 1242 | != PackageManager.PERMISSION_GRANTED) { |
| 1243 | mService.showLaunchWarningLocked(mLastStartedActivity, next); |
| 1244 | } else { |
| 1245 | next.startTime = now; |
| 1246 | mLastStartedActivity = next; |
| 1247 | } |
Dianne Hackborn | 0dad364 | 2010-09-09 21:25:35 -0700 | [diff] [blame] | 1248 | } else { |
Dianne Hackborn | 034093a4 | 2010-09-20 22:24:38 -0700 | [diff] [blame] | 1249 | next.startTime = SystemClock.uptimeMillis(); |
Dianne Hackborn | 0dad364 | 2010-09-09 21:25:35 -0700 | [diff] [blame] | 1250 | mLastStartedActivity = next; |
| 1251 | } |
Dianne Hackborn | 0dad364 | 2010-09-09 21:25:35 -0700 | [diff] [blame] | 1252 | } |
| 1253 | |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 1254 | // We need to start pausing the current activity so the top one |
| 1255 | // can be resumed... |
| 1256 | if (mResumedActivity != null) { |
| 1257 | if (DEBUG_SWITCH) Slog.v(TAG, "Skip resume: need to start pausing"); |
| 1258 | startPausingLocked(userLeaving, false); |
| 1259 | return true; |
| 1260 | } |
| 1261 | |
| 1262 | if (prev != null && prev != next) { |
| 1263 | if (!prev.waitingVisible && next != null && !next.nowVisible) { |
| 1264 | prev.waitingVisible = true; |
| 1265 | mWaitingVisibleActivities.add(prev); |
| 1266 | if (DEBUG_SWITCH) Slog.v( |
| 1267 | TAG, "Resuming top, waiting visible to hide: " + prev); |
| 1268 | } else { |
| 1269 | // The next activity is already visible, so hide the previous |
| 1270 | // activity's windows right now so we can show the new one ASAP. |
| 1271 | // We only do this if the previous is finishing, which should mean |
| 1272 | // it is on top of the one being resumed so hiding it quickly |
| 1273 | // is good. Otherwise, we want to do the normal route of allowing |
| 1274 | // the resumed activity to be shown so we can decide if the |
| 1275 | // previous should actually be hidden depending on whether the |
| 1276 | // new one is found to be full-screen or not. |
| 1277 | if (prev.finishing) { |
| 1278 | mService.mWindowManager.setAppVisibility(prev, false); |
| 1279 | if (DEBUG_SWITCH) Slog.v(TAG, "Not waiting for visible to hide: " |
| 1280 | + prev + ", waitingVisible=" |
| 1281 | + (prev != null ? prev.waitingVisible : null) |
| 1282 | + ", nowVisible=" + next.nowVisible); |
| 1283 | } else { |
| 1284 | if (DEBUG_SWITCH) Slog.v(TAG, "Previous already visible but still waiting to hide: " |
| 1285 | + prev + ", waitingVisible=" |
| 1286 | + (prev != null ? prev.waitingVisible : null) |
| 1287 | + ", nowVisible=" + next.nowVisible); |
| 1288 | } |
| 1289 | } |
| 1290 | } |
| 1291 | |
| 1292 | // We are starting up the next activity, so tell the window manager |
| 1293 | // that the previous one will be hidden soon. This way it can know |
| 1294 | // to ignore it when computing the desired screen orientation. |
| 1295 | if (prev != null) { |
| 1296 | if (prev.finishing) { |
| 1297 | if (DEBUG_TRANSITION) Slog.v(TAG, |
| 1298 | "Prepare close transition: prev=" + prev); |
| 1299 | if (mNoAnimActivities.contains(prev)) { |
Dianne Hackborn | 7da6ac3 | 2010-12-09 19:22:04 -0800 | [diff] [blame] | 1300 | mService.mWindowManager.prepareAppTransition( |
| 1301 | WindowManagerPolicy.TRANSIT_NONE, false); |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 1302 | } else { |
| 1303 | mService.mWindowManager.prepareAppTransition(prev.task == next.task |
| 1304 | ? WindowManagerPolicy.TRANSIT_ACTIVITY_CLOSE |
Dianne Hackborn | 7da6ac3 | 2010-12-09 19:22:04 -0800 | [diff] [blame] | 1305 | : WindowManagerPolicy.TRANSIT_TASK_CLOSE, false); |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 1306 | } |
| 1307 | mService.mWindowManager.setAppWillBeHidden(prev); |
| 1308 | mService.mWindowManager.setAppVisibility(prev, false); |
| 1309 | } else { |
| 1310 | if (DEBUG_TRANSITION) Slog.v(TAG, |
| 1311 | "Prepare open transition: prev=" + prev); |
| 1312 | if (mNoAnimActivities.contains(next)) { |
Dianne Hackborn | 7da6ac3 | 2010-12-09 19:22:04 -0800 | [diff] [blame] | 1313 | mService.mWindowManager.prepareAppTransition( |
| 1314 | WindowManagerPolicy.TRANSIT_NONE, false); |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 1315 | } else { |
| 1316 | mService.mWindowManager.prepareAppTransition(prev.task == next.task |
| 1317 | ? WindowManagerPolicy.TRANSIT_ACTIVITY_OPEN |
Dianne Hackborn | 7da6ac3 | 2010-12-09 19:22:04 -0800 | [diff] [blame] | 1318 | : WindowManagerPolicy.TRANSIT_TASK_OPEN, false); |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 1319 | } |
| 1320 | } |
| 1321 | if (false) { |
| 1322 | mService.mWindowManager.setAppWillBeHidden(prev); |
| 1323 | mService.mWindowManager.setAppVisibility(prev, false); |
| 1324 | } |
| 1325 | } else if (mHistory.size() > 1) { |
| 1326 | if (DEBUG_TRANSITION) Slog.v(TAG, |
| 1327 | "Prepare open transition: no previous"); |
| 1328 | if (mNoAnimActivities.contains(next)) { |
Dianne Hackborn | 7da6ac3 | 2010-12-09 19:22:04 -0800 | [diff] [blame] | 1329 | mService.mWindowManager.prepareAppTransition( |
| 1330 | WindowManagerPolicy.TRANSIT_NONE, false); |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 1331 | } else { |
Dianne Hackborn | 7da6ac3 | 2010-12-09 19:22:04 -0800 | [diff] [blame] | 1332 | mService.mWindowManager.prepareAppTransition( |
| 1333 | WindowManagerPolicy.TRANSIT_ACTIVITY_OPEN, false); |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 1334 | } |
| 1335 | } |
| 1336 | |
| 1337 | if (next.app != null && next.app.thread != null) { |
| 1338 | if (DEBUG_SWITCH) Slog.v(TAG, "Resume running: " + next); |
| 1339 | |
| 1340 | // This activity is now becoming visible. |
| 1341 | mService.mWindowManager.setAppVisibility(next, true); |
| 1342 | |
| 1343 | ActivityRecord lastResumedActivity = mResumedActivity; |
| 1344 | ActivityState lastState = next.state; |
| 1345 | |
| 1346 | mService.updateCpuStats(); |
| 1347 | |
| 1348 | next.state = ActivityState.RESUMED; |
| 1349 | mResumedActivity = next; |
| 1350 | next.task.touchActiveTime(); |
Dianne Hackborn | 88819b2 | 2010-12-21 18:18:02 -0800 | [diff] [blame] | 1351 | if (mMainStack) { |
| 1352 | mService.addRecentTaskLocked(next.task); |
| 1353 | } |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 1354 | mService.updateLruProcessLocked(next.app, true, true); |
| 1355 | updateLRUListLocked(next); |
| 1356 | |
| 1357 | // Have the window manager re-evaluate the orientation of |
| 1358 | // the screen based on the new activity order. |
| 1359 | boolean updated = false; |
| 1360 | if (mMainStack) { |
| 1361 | synchronized (mService) { |
| 1362 | Configuration config = mService.mWindowManager.updateOrientationFromAppTokens( |
| 1363 | mService.mConfiguration, |
| 1364 | next.mayFreezeScreenLocked(next.app) ? next : null); |
| 1365 | if (config != null) { |
| 1366 | next.frozenBeforeDestroy = true; |
| 1367 | } |
| 1368 | updated = mService.updateConfigurationLocked(config, next); |
| 1369 | } |
| 1370 | } |
| 1371 | if (!updated) { |
| 1372 | // The configuration update wasn't able to keep the existing |
| 1373 | // instance of the activity, and instead started a new one. |
| 1374 | // We should be all done, but let's just make sure our activity |
| 1375 | // is still at the top and schedule another run if something |
| 1376 | // weird happened. |
| 1377 | ActivityRecord nextNext = topRunningActivityLocked(null); |
| 1378 | if (DEBUG_SWITCH) Slog.i(TAG, |
| 1379 | "Activity config changed during resume: " + next |
| 1380 | + ", new next: " + nextNext); |
| 1381 | if (nextNext != next) { |
| 1382 | // Do over! |
| 1383 | mHandler.sendEmptyMessage(RESUME_TOP_ACTIVITY_MSG); |
| 1384 | } |
| 1385 | if (mMainStack) { |
| 1386 | mService.setFocusedActivityLocked(next); |
| 1387 | } |
| 1388 | ensureActivitiesVisibleLocked(null, 0); |
| 1389 | mService.mWindowManager.executeAppTransition(); |
| 1390 | mNoAnimActivities.clear(); |
| 1391 | return true; |
| 1392 | } |
| 1393 | |
| 1394 | try { |
| 1395 | // Deliver all pending results. |
| 1396 | ArrayList a = next.results; |
| 1397 | if (a != null) { |
| 1398 | final int N = a.size(); |
| 1399 | if (!next.finishing && N > 0) { |
| 1400 | if (DEBUG_RESULTS) Slog.v( |
| 1401 | TAG, "Delivering results to " + next |
| 1402 | + ": " + a); |
| 1403 | next.app.thread.scheduleSendResult(next, a); |
| 1404 | } |
| 1405 | } |
| 1406 | |
| 1407 | if (next.newIntents != null) { |
| 1408 | next.app.thread.scheduleNewIntent(next.newIntents, next); |
| 1409 | } |
| 1410 | |
| 1411 | EventLog.writeEvent(EventLogTags.AM_RESUME_ACTIVITY, |
| 1412 | System.identityHashCode(next), |
| 1413 | next.task.taskId, next.shortComponentName); |
| 1414 | |
Dianne Hackborn | 4eba96b | 2011-01-21 13:34:36 -0800 | [diff] [blame^] | 1415 | next.sleeping = false; |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 1416 | next.app.thread.scheduleResumeActivity(next, |
| 1417 | mService.isNextTransitionForward()); |
| 1418 | |
Dianne Hackborn | 4eba96b | 2011-01-21 13:34:36 -0800 | [diff] [blame^] | 1419 | checkReadyForSleepLocked(); |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 1420 | |
| 1421 | } catch (Exception e) { |
| 1422 | // Whoops, need to restart this activity! |
| 1423 | next.state = lastState; |
| 1424 | mResumedActivity = lastResumedActivity; |
| 1425 | Slog.i(TAG, "Restarting because process died: " + next); |
| 1426 | if (!next.hasBeenLaunched) { |
| 1427 | next.hasBeenLaunched = true; |
| 1428 | } else { |
| 1429 | if (SHOW_APP_STARTING_PREVIEW && mMainStack) { |
| 1430 | mService.mWindowManager.setAppStartingWindow( |
| 1431 | next, next.packageName, next.theme, |
| 1432 | next.nonLocalizedLabel, |
Dianne Hackborn | 7eec10e | 2010-11-12 18:03:47 -0800 | [diff] [blame] | 1433 | next.labelRes, next.icon, next.windowFlags, |
| 1434 | null, true); |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 1435 | } |
| 1436 | } |
| 1437 | startSpecificActivityLocked(next, true, false); |
| 1438 | return true; |
| 1439 | } |
| 1440 | |
| 1441 | // From this point on, if something goes wrong there is no way |
| 1442 | // to recover the activity. |
| 1443 | try { |
| 1444 | next.visible = true; |
| 1445 | completeResumeLocked(next); |
| 1446 | } catch (Exception e) { |
| 1447 | // If any exception gets thrown, toss away this |
| 1448 | // activity and try the next one. |
| 1449 | Slog.w(TAG, "Exception thrown during resume of " + next, e); |
| 1450 | requestFinishActivityLocked(next, Activity.RESULT_CANCELED, null, |
| 1451 | "resume-exception"); |
| 1452 | return true; |
| 1453 | } |
| 1454 | |
| 1455 | // Didn't need to use the icicle, and it is now out of date. |
| 1456 | next.icicle = null; |
| 1457 | next.haveState = false; |
| 1458 | next.stopped = false; |
| 1459 | |
| 1460 | } else { |
| 1461 | // Whoops, need to restart this activity! |
| 1462 | if (!next.hasBeenLaunched) { |
| 1463 | next.hasBeenLaunched = true; |
| 1464 | } else { |
| 1465 | if (SHOW_APP_STARTING_PREVIEW) { |
| 1466 | mService.mWindowManager.setAppStartingWindow( |
| 1467 | next, next.packageName, next.theme, |
| 1468 | next.nonLocalizedLabel, |
Dianne Hackborn | 7eec10e | 2010-11-12 18:03:47 -0800 | [diff] [blame] | 1469 | next.labelRes, next.icon, next.windowFlags, |
| 1470 | null, true); |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 1471 | } |
| 1472 | if (DEBUG_SWITCH) Slog.v(TAG, "Restarting: " + next); |
| 1473 | } |
| 1474 | startSpecificActivityLocked(next, true, true); |
| 1475 | } |
| 1476 | |
| 1477 | return true; |
| 1478 | } |
| 1479 | |
| 1480 | private final void startActivityLocked(ActivityRecord r, boolean newTask, |
Dianne Hackborn | 7da6ac3 | 2010-12-09 19:22:04 -0800 | [diff] [blame] | 1481 | boolean doResume, boolean keepCurTransition) { |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 1482 | final int NH = mHistory.size(); |
| 1483 | |
| 1484 | int addPos = -1; |
| 1485 | |
| 1486 | if (!newTask) { |
| 1487 | // If starting in an existing task, find where that is... |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 1488 | boolean startIt = true; |
| 1489 | for (int i = NH-1; i >= 0; i--) { |
| 1490 | ActivityRecord p = (ActivityRecord)mHistory.get(i); |
| 1491 | if (p.finishing) { |
| 1492 | continue; |
| 1493 | } |
| 1494 | if (p.task == r.task) { |
| 1495 | // Here it is! Now, if this is not yet visible to the |
| 1496 | // user, then just add it without starting; it will |
| 1497 | // get started when the user navigates back to it. |
| 1498 | addPos = i+1; |
| 1499 | if (!startIt) { |
| 1500 | mHistory.add(addPos, r); |
| 1501 | r.inHistory = true; |
| 1502 | r.task.numActivities++; |
| 1503 | mService.mWindowManager.addAppToken(addPos, r, r.task.taskId, |
| 1504 | r.info.screenOrientation, r.fullscreen); |
| 1505 | if (VALIDATE_TOKENS) { |
| 1506 | mService.mWindowManager.validateAppTokens(mHistory); |
| 1507 | } |
| 1508 | return; |
| 1509 | } |
| 1510 | break; |
| 1511 | } |
| 1512 | if (p.fullscreen) { |
| 1513 | startIt = false; |
| 1514 | } |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 1515 | } |
| 1516 | } |
| 1517 | |
| 1518 | // Place a new activity at top of stack, so it is next to interact |
| 1519 | // with the user. |
| 1520 | if (addPos < 0) { |
Dianne Hackborn | 0dad364 | 2010-09-09 21:25:35 -0700 | [diff] [blame] | 1521 | addPos = NH; |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 1522 | } |
| 1523 | |
| 1524 | // If we are not placing the new activity frontmost, we do not want |
| 1525 | // to deliver the onUserLeaving callback to the actual frontmost |
| 1526 | // activity |
| 1527 | if (addPos < NH) { |
| 1528 | mUserLeaving = false; |
| 1529 | if (DEBUG_USER_LEAVING) Slog.v(TAG, "startActivity() behind front, mUserLeaving=false"); |
| 1530 | } |
| 1531 | |
| 1532 | // Slot the activity into the history stack and proceed |
| 1533 | mHistory.add(addPos, r); |
| 1534 | r.inHistory = true; |
| 1535 | r.frontOfTask = newTask; |
| 1536 | r.task.numActivities++; |
| 1537 | if (NH > 0) { |
| 1538 | // We want to show the starting preview window if we are |
| 1539 | // switching to a new task, or the next activity's process is |
| 1540 | // not currently running. |
| 1541 | boolean showStartingIcon = newTask; |
| 1542 | ProcessRecord proc = r.app; |
| 1543 | if (proc == null) { |
| 1544 | proc = mService.mProcessNames.get(r.processName, r.info.applicationInfo.uid); |
| 1545 | } |
| 1546 | if (proc == null || proc.thread == null) { |
| 1547 | showStartingIcon = true; |
| 1548 | } |
| 1549 | if (DEBUG_TRANSITION) Slog.v(TAG, |
| 1550 | "Prepare open transition: starting " + r); |
| 1551 | if ((r.intent.getFlags()&Intent.FLAG_ACTIVITY_NO_ANIMATION) != 0) { |
Dianne Hackborn | 7da6ac3 | 2010-12-09 19:22:04 -0800 | [diff] [blame] | 1552 | mService.mWindowManager.prepareAppTransition( |
| 1553 | WindowManagerPolicy.TRANSIT_NONE, keepCurTransition); |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 1554 | mNoAnimActivities.add(r); |
| 1555 | } else if ((r.intent.getFlags()&Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET) != 0) { |
| 1556 | mService.mWindowManager.prepareAppTransition( |
Dianne Hackborn | 7da6ac3 | 2010-12-09 19:22:04 -0800 | [diff] [blame] | 1557 | WindowManagerPolicy.TRANSIT_TASK_OPEN, keepCurTransition); |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 1558 | mNoAnimActivities.remove(r); |
| 1559 | } else { |
| 1560 | mService.mWindowManager.prepareAppTransition(newTask |
| 1561 | ? WindowManagerPolicy.TRANSIT_TASK_OPEN |
Dianne Hackborn | 7da6ac3 | 2010-12-09 19:22:04 -0800 | [diff] [blame] | 1562 | : WindowManagerPolicy.TRANSIT_ACTIVITY_OPEN, keepCurTransition); |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 1563 | mNoAnimActivities.remove(r); |
| 1564 | } |
| 1565 | mService.mWindowManager.addAppToken( |
| 1566 | addPos, r, r.task.taskId, r.info.screenOrientation, r.fullscreen); |
| 1567 | boolean doShow = true; |
| 1568 | if (newTask) { |
| 1569 | // Even though this activity is starting fresh, we still need |
| 1570 | // to reset it to make sure we apply affinities to move any |
| 1571 | // existing activities from other tasks in to it. |
| 1572 | // If the caller has requested that the target task be |
| 1573 | // reset, then do so. |
| 1574 | if ((r.intent.getFlags() |
| 1575 | &Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED) != 0) { |
| 1576 | resetTaskIfNeededLocked(r, r); |
| 1577 | doShow = topRunningNonDelayedActivityLocked(null) == r; |
| 1578 | } |
| 1579 | } |
| 1580 | if (SHOW_APP_STARTING_PREVIEW && doShow) { |
| 1581 | // Figure out if we are transitioning from another activity that is |
| 1582 | // "has the same starting icon" as the next one. This allows the |
| 1583 | // window manager to keep the previous window it had previously |
| 1584 | // created, if it still had one. |
| 1585 | ActivityRecord prev = mResumedActivity; |
| 1586 | if (prev != null) { |
| 1587 | // We don't want to reuse the previous starting preview if: |
| 1588 | // (1) The current activity is in a different task. |
| 1589 | if (prev.task != r.task) prev = null; |
| 1590 | // (2) The current activity is already displayed. |
| 1591 | else if (prev.nowVisible) prev = null; |
| 1592 | } |
| 1593 | mService.mWindowManager.setAppStartingWindow( |
| 1594 | r, r.packageName, r.theme, r.nonLocalizedLabel, |
Dianne Hackborn | 7eec10e | 2010-11-12 18:03:47 -0800 | [diff] [blame] | 1595 | r.labelRes, r.icon, r.windowFlags, prev, showStartingIcon); |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 1596 | } |
| 1597 | } else { |
| 1598 | // If this is the first activity, don't do any fancy animations, |
| 1599 | // because there is nothing for it to animate on top of. |
| 1600 | mService.mWindowManager.addAppToken(addPos, r, r.task.taskId, |
| 1601 | r.info.screenOrientation, r.fullscreen); |
| 1602 | } |
| 1603 | if (VALIDATE_TOKENS) { |
| 1604 | mService.mWindowManager.validateAppTokens(mHistory); |
| 1605 | } |
| 1606 | |
| 1607 | if (doResume) { |
| 1608 | resumeTopActivityLocked(null); |
| 1609 | } |
| 1610 | } |
| 1611 | |
| 1612 | /** |
| 1613 | * Perform a reset of the given task, if needed as part of launching it. |
| 1614 | * Returns the new HistoryRecord at the top of the task. |
| 1615 | */ |
| 1616 | private final ActivityRecord resetTaskIfNeededLocked(ActivityRecord taskTop, |
| 1617 | ActivityRecord newActivity) { |
| 1618 | boolean forceReset = (newActivity.info.flags |
| 1619 | &ActivityInfo.FLAG_CLEAR_TASK_ON_LAUNCH) != 0; |
Dianne Hackborn | 621e17d | 2010-11-22 15:59:56 -0800 | [diff] [blame] | 1620 | if (ACTIVITY_INACTIVE_RESET_TIME > 0 |
| 1621 | && taskTop.task.getInactiveDuration() > ACTIVITY_INACTIVE_RESET_TIME) { |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 1622 | if ((newActivity.info.flags |
| 1623 | &ActivityInfo.FLAG_ALWAYS_RETAIN_TASK_STATE) == 0) { |
| 1624 | forceReset = true; |
| 1625 | } |
| 1626 | } |
| 1627 | |
| 1628 | final TaskRecord task = taskTop.task; |
| 1629 | |
| 1630 | // We are going to move through the history list so that we can look |
| 1631 | // at each activity 'target' with 'below' either the interesting |
| 1632 | // activity immediately below it in the stack or null. |
| 1633 | ActivityRecord target = null; |
| 1634 | int targetI = 0; |
| 1635 | int taskTopI = -1; |
| 1636 | int replyChainEnd = -1; |
| 1637 | int lastReparentPos = -1; |
| 1638 | for (int i=mHistory.size()-1; i>=-1; i--) { |
| 1639 | ActivityRecord below = i >= 0 ? (ActivityRecord)mHistory.get(i) : null; |
| 1640 | |
| 1641 | if (below != null && below.finishing) { |
| 1642 | continue; |
| 1643 | } |
| 1644 | if (target == null) { |
| 1645 | target = below; |
| 1646 | targetI = i; |
| 1647 | // If we were in the middle of a reply chain before this |
| 1648 | // task, it doesn't appear like the root of the chain wants |
| 1649 | // anything interesting, so drop it. |
| 1650 | replyChainEnd = -1; |
| 1651 | continue; |
| 1652 | } |
| 1653 | |
| 1654 | final int flags = target.info.flags; |
| 1655 | |
| 1656 | final boolean finishOnTaskLaunch = |
| 1657 | (flags&ActivityInfo.FLAG_FINISH_ON_TASK_LAUNCH) != 0; |
| 1658 | final boolean allowTaskReparenting = |
| 1659 | (flags&ActivityInfo.FLAG_ALLOW_TASK_REPARENTING) != 0; |
| 1660 | |
| 1661 | if (target.task == task) { |
| 1662 | // We are inside of the task being reset... we'll either |
| 1663 | // finish this activity, push it out for another task, |
| 1664 | // or leave it as-is. We only do this |
| 1665 | // for activities that are not the root of the task (since |
| 1666 | // if we finish the root, we may no longer have the task!). |
| 1667 | if (taskTopI < 0) { |
| 1668 | taskTopI = targetI; |
| 1669 | } |
| 1670 | if (below != null && below.task == task) { |
| 1671 | final boolean clearWhenTaskReset = |
| 1672 | (target.intent.getFlags() |
| 1673 | &Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET) != 0; |
| 1674 | if (!finishOnTaskLaunch && !clearWhenTaskReset && target.resultTo != null) { |
| 1675 | // If this activity is sending a reply to a previous |
| 1676 | // activity, we can't do anything with it now until |
| 1677 | // we reach the start of the reply chain. |
| 1678 | // XXX note that we are assuming the result is always |
| 1679 | // to the previous activity, which is almost always |
| 1680 | // the case but we really shouldn't count on. |
| 1681 | if (replyChainEnd < 0) { |
| 1682 | replyChainEnd = targetI; |
| 1683 | } |
| 1684 | } else if (!finishOnTaskLaunch && !clearWhenTaskReset && allowTaskReparenting |
| 1685 | && target.taskAffinity != null |
| 1686 | && !target.taskAffinity.equals(task.affinity)) { |
| 1687 | // If this activity has an affinity for another |
| 1688 | // task, then we need to move it out of here. We will |
| 1689 | // move it as far out of the way as possible, to the |
| 1690 | // bottom of the activity stack. This also keeps it |
| 1691 | // correctly ordered with any activities we previously |
| 1692 | // moved. |
| 1693 | ActivityRecord p = (ActivityRecord)mHistory.get(0); |
| 1694 | if (target.taskAffinity != null |
| 1695 | && target.taskAffinity.equals(p.task.affinity)) { |
| 1696 | // If the activity currently at the bottom has the |
| 1697 | // same task affinity as the one we are moving, |
| 1698 | // then merge it into the same task. |
| 1699 | target.task = p.task; |
| 1700 | if (DEBUG_TASKS) Slog.v(TAG, "Start pushing activity " + target |
| 1701 | + " out to bottom task " + p.task); |
| 1702 | } else { |
| 1703 | mService.mCurTask++; |
| 1704 | if (mService.mCurTask <= 0) { |
| 1705 | mService.mCurTask = 1; |
| 1706 | } |
Dianne Hackborn | 621e17d | 2010-11-22 15:59:56 -0800 | [diff] [blame] | 1707 | target.task = new TaskRecord(mService.mCurTask, target.info, null); |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 1708 | target.task.affinityIntent = target.intent; |
| 1709 | if (DEBUG_TASKS) Slog.v(TAG, "Start pushing activity " + target |
| 1710 | + " out to new task " + target.task); |
| 1711 | } |
| 1712 | mService.mWindowManager.setAppGroupId(target, task.taskId); |
| 1713 | if (replyChainEnd < 0) { |
| 1714 | replyChainEnd = targetI; |
| 1715 | } |
| 1716 | int dstPos = 0; |
| 1717 | for (int srcPos=targetI; srcPos<=replyChainEnd; srcPos++) { |
| 1718 | p = (ActivityRecord)mHistory.get(srcPos); |
| 1719 | if (p.finishing) { |
| 1720 | continue; |
| 1721 | } |
| 1722 | if (DEBUG_TASKS) Slog.v(TAG, "Pushing next activity " + p |
| 1723 | + " out to target's task " + target.task); |
| 1724 | task.numActivities--; |
| 1725 | p.task = target.task; |
| 1726 | target.task.numActivities++; |
| 1727 | mHistory.remove(srcPos); |
| 1728 | mHistory.add(dstPos, p); |
| 1729 | mService.mWindowManager.moveAppToken(dstPos, p); |
| 1730 | mService.mWindowManager.setAppGroupId(p, p.task.taskId); |
| 1731 | dstPos++; |
| 1732 | if (VALIDATE_TOKENS) { |
| 1733 | mService.mWindowManager.validateAppTokens(mHistory); |
| 1734 | } |
| 1735 | i++; |
| 1736 | } |
| 1737 | if (taskTop == p) { |
| 1738 | taskTop = below; |
| 1739 | } |
| 1740 | if (taskTopI == replyChainEnd) { |
| 1741 | taskTopI = -1; |
| 1742 | } |
| 1743 | replyChainEnd = -1; |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 1744 | } else if (forceReset || finishOnTaskLaunch |
| 1745 | || clearWhenTaskReset) { |
| 1746 | // If the activity should just be removed -- either |
| 1747 | // because it asks for it, or the task should be |
| 1748 | // cleared -- then finish it and anything that is |
| 1749 | // part of its reply chain. |
| 1750 | if (clearWhenTaskReset) { |
| 1751 | // In this case, we want to finish this activity |
| 1752 | // and everything above it, so be sneaky and pretend |
| 1753 | // like these are all in the reply chain. |
| 1754 | replyChainEnd = targetI+1; |
| 1755 | while (replyChainEnd < mHistory.size() && |
| 1756 | ((ActivityRecord)mHistory.get( |
| 1757 | replyChainEnd)).task == task) { |
| 1758 | replyChainEnd++; |
| 1759 | } |
| 1760 | replyChainEnd--; |
| 1761 | } else if (replyChainEnd < 0) { |
| 1762 | replyChainEnd = targetI; |
| 1763 | } |
| 1764 | ActivityRecord p = null; |
| 1765 | for (int srcPos=targetI; srcPos<=replyChainEnd; srcPos++) { |
| 1766 | p = (ActivityRecord)mHistory.get(srcPos); |
| 1767 | if (p.finishing) { |
| 1768 | continue; |
| 1769 | } |
| 1770 | if (finishActivityLocked(p, srcPos, |
| 1771 | Activity.RESULT_CANCELED, null, "reset")) { |
| 1772 | replyChainEnd--; |
| 1773 | srcPos--; |
| 1774 | } |
| 1775 | } |
| 1776 | if (taskTop == p) { |
| 1777 | taskTop = below; |
| 1778 | } |
| 1779 | if (taskTopI == replyChainEnd) { |
| 1780 | taskTopI = -1; |
| 1781 | } |
| 1782 | replyChainEnd = -1; |
| 1783 | } else { |
| 1784 | // If we were in the middle of a chain, well the |
| 1785 | // activity that started it all doesn't want anything |
| 1786 | // special, so leave it all as-is. |
| 1787 | replyChainEnd = -1; |
| 1788 | } |
| 1789 | } else { |
| 1790 | // Reached the bottom of the task -- any reply chain |
| 1791 | // should be left as-is. |
| 1792 | replyChainEnd = -1; |
| 1793 | } |
| 1794 | |
| 1795 | } else if (target.resultTo != null) { |
| 1796 | // If this activity is sending a reply to a previous |
| 1797 | // activity, we can't do anything with it now until |
| 1798 | // we reach the start of the reply chain. |
| 1799 | // XXX note that we are assuming the result is always |
| 1800 | // to the previous activity, which is almost always |
| 1801 | // the case but we really shouldn't count on. |
| 1802 | if (replyChainEnd < 0) { |
| 1803 | replyChainEnd = targetI; |
| 1804 | } |
| 1805 | |
| 1806 | } else if (taskTopI >= 0 && allowTaskReparenting |
| 1807 | && task.affinity != null |
| 1808 | && task.affinity.equals(target.taskAffinity)) { |
| 1809 | // We are inside of another task... if this activity has |
| 1810 | // an affinity for our task, then either remove it if we are |
| 1811 | // clearing or move it over to our task. Note that |
| 1812 | // we currently punt on the case where we are resetting a |
| 1813 | // task that is not at the top but who has activities above |
| 1814 | // with an affinity to it... this is really not a normal |
| 1815 | // case, and we will need to later pull that task to the front |
| 1816 | // and usually at that point we will do the reset and pick |
| 1817 | // up those remaining activities. (This only happens if |
| 1818 | // someone starts an activity in a new task from an activity |
| 1819 | // in a task that is not currently on top.) |
| 1820 | if (forceReset || finishOnTaskLaunch) { |
| 1821 | if (replyChainEnd < 0) { |
| 1822 | replyChainEnd = targetI; |
| 1823 | } |
| 1824 | ActivityRecord p = null; |
| 1825 | for (int srcPos=targetI; srcPos<=replyChainEnd; srcPos++) { |
| 1826 | p = (ActivityRecord)mHistory.get(srcPos); |
| 1827 | if (p.finishing) { |
| 1828 | continue; |
| 1829 | } |
| 1830 | if (finishActivityLocked(p, srcPos, |
| 1831 | Activity.RESULT_CANCELED, null, "reset")) { |
| 1832 | taskTopI--; |
| 1833 | lastReparentPos--; |
| 1834 | replyChainEnd--; |
| 1835 | srcPos--; |
| 1836 | } |
| 1837 | } |
| 1838 | replyChainEnd = -1; |
| 1839 | } else { |
| 1840 | if (replyChainEnd < 0) { |
| 1841 | replyChainEnd = targetI; |
| 1842 | } |
| 1843 | for (int srcPos=replyChainEnd; srcPos>=targetI; srcPos--) { |
| 1844 | ActivityRecord p = (ActivityRecord)mHistory.get(srcPos); |
| 1845 | if (p.finishing) { |
| 1846 | continue; |
| 1847 | } |
| 1848 | if (lastReparentPos < 0) { |
| 1849 | lastReparentPos = taskTopI; |
| 1850 | taskTop = p; |
| 1851 | } else { |
| 1852 | lastReparentPos--; |
| 1853 | } |
| 1854 | mHistory.remove(srcPos); |
| 1855 | p.task.numActivities--; |
| 1856 | p.task = task; |
| 1857 | mHistory.add(lastReparentPos, p); |
| 1858 | if (DEBUG_TASKS) Slog.v(TAG, "Pulling activity " + p |
| 1859 | + " in to resetting task " + task); |
| 1860 | task.numActivities++; |
| 1861 | mService.mWindowManager.moveAppToken(lastReparentPos, p); |
| 1862 | mService.mWindowManager.setAppGroupId(p, p.task.taskId); |
| 1863 | if (VALIDATE_TOKENS) { |
| 1864 | mService.mWindowManager.validateAppTokens(mHistory); |
| 1865 | } |
| 1866 | } |
| 1867 | replyChainEnd = -1; |
| 1868 | |
| 1869 | // Now we've moved it in to place... but what if this is |
| 1870 | // a singleTop activity and we have put it on top of another |
| 1871 | // instance of the same activity? Then we drop the instance |
| 1872 | // below so it remains singleTop. |
| 1873 | if (target.info.launchMode == ActivityInfo.LAUNCH_SINGLE_TOP) { |
| 1874 | for (int j=lastReparentPos-1; j>=0; j--) { |
| 1875 | ActivityRecord p = (ActivityRecord)mHistory.get(j); |
| 1876 | if (p.finishing) { |
| 1877 | continue; |
| 1878 | } |
| 1879 | if (p.intent.getComponent().equals(target.intent.getComponent())) { |
| 1880 | if (finishActivityLocked(p, j, |
| 1881 | Activity.RESULT_CANCELED, null, "replace")) { |
| 1882 | taskTopI--; |
| 1883 | lastReparentPos--; |
| 1884 | } |
| 1885 | } |
| 1886 | } |
| 1887 | } |
| 1888 | } |
| 1889 | } |
| 1890 | |
| 1891 | target = below; |
| 1892 | targetI = i; |
| 1893 | } |
| 1894 | |
| 1895 | return taskTop; |
| 1896 | } |
| 1897 | |
| 1898 | /** |
| 1899 | * Perform clear operation as requested by |
| 1900 | * {@link Intent#FLAG_ACTIVITY_CLEAR_TOP}: search from the top of the |
| 1901 | * stack to the given task, then look for |
| 1902 | * an instance of that activity in the stack and, if found, finish all |
| 1903 | * activities on top of it and return the instance. |
| 1904 | * |
| 1905 | * @param newR Description of the new activity being started. |
Dianne Hackborn | 621e17d | 2010-11-22 15:59:56 -0800 | [diff] [blame] | 1906 | * @return Returns the old activity that should be continued to be used, |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 1907 | * or null if none was found. |
| 1908 | */ |
| 1909 | private final ActivityRecord performClearTaskLocked(int taskId, |
Dianne Hackborn | 621e17d | 2010-11-22 15:59:56 -0800 | [diff] [blame] | 1910 | ActivityRecord newR, int launchFlags) { |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 1911 | int i = mHistory.size(); |
| 1912 | |
| 1913 | // First find the requested task. |
| 1914 | while (i > 0) { |
| 1915 | i--; |
| 1916 | ActivityRecord r = (ActivityRecord)mHistory.get(i); |
| 1917 | if (r.task.taskId == taskId) { |
| 1918 | i++; |
| 1919 | break; |
| 1920 | } |
| 1921 | } |
| 1922 | |
| 1923 | // Now clear it. |
| 1924 | while (i > 0) { |
| 1925 | i--; |
| 1926 | ActivityRecord r = (ActivityRecord)mHistory.get(i); |
| 1927 | if (r.finishing) { |
| 1928 | continue; |
| 1929 | } |
| 1930 | if (r.task.taskId != taskId) { |
| 1931 | return null; |
| 1932 | } |
| 1933 | if (r.realActivity.equals(newR.realActivity)) { |
| 1934 | // Here it is! Now finish everything in front... |
| 1935 | ActivityRecord ret = r; |
Dianne Hackborn | 621e17d | 2010-11-22 15:59:56 -0800 | [diff] [blame] | 1936 | while (i < (mHistory.size()-1)) { |
| 1937 | i++; |
| 1938 | r = (ActivityRecord)mHistory.get(i); |
| 1939 | if (r.task.taskId != taskId) { |
| 1940 | break; |
| 1941 | } |
| 1942 | if (r.finishing) { |
| 1943 | continue; |
| 1944 | } |
| 1945 | if (finishActivityLocked(r, i, Activity.RESULT_CANCELED, |
| 1946 | null, "clear")) { |
| 1947 | i--; |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 1948 | } |
| 1949 | } |
| 1950 | |
| 1951 | // Finally, if this is a normal launch mode (that is, not |
| 1952 | // expecting onNewIntent()), then we will finish the current |
| 1953 | // instance of the activity so a new fresh one can be started. |
| 1954 | if (ret.launchMode == ActivityInfo.LAUNCH_MULTIPLE |
| 1955 | && (launchFlags&Intent.FLAG_ACTIVITY_SINGLE_TOP) == 0) { |
| 1956 | if (!ret.finishing) { |
| 1957 | int index = indexOfTokenLocked(ret); |
| 1958 | if (index >= 0) { |
| 1959 | finishActivityLocked(ret, index, Activity.RESULT_CANCELED, |
| 1960 | null, "clear"); |
| 1961 | } |
| 1962 | return null; |
| 1963 | } |
| 1964 | } |
| 1965 | |
| 1966 | return ret; |
| 1967 | } |
| 1968 | } |
| 1969 | |
| 1970 | return null; |
| 1971 | } |
| 1972 | |
| 1973 | /** |
Dianne Hackborn | 621e17d | 2010-11-22 15:59:56 -0800 | [diff] [blame] | 1974 | * Completely remove all activities associated with an existing task. |
| 1975 | */ |
| 1976 | private final void performClearTaskLocked(int taskId) { |
| 1977 | int i = mHistory.size(); |
| 1978 | |
| 1979 | // First find the requested task. |
| 1980 | while (i > 0) { |
| 1981 | i--; |
| 1982 | ActivityRecord r = (ActivityRecord)mHistory.get(i); |
| 1983 | if (r.task.taskId == taskId) { |
| 1984 | i++; |
| 1985 | break; |
| 1986 | } |
| 1987 | } |
| 1988 | |
| 1989 | // Now clear it. |
| 1990 | while (i > 0) { |
| 1991 | i--; |
| 1992 | ActivityRecord r = (ActivityRecord)mHistory.get(i); |
| 1993 | if (r.finishing) { |
| 1994 | continue; |
| 1995 | } |
| 1996 | if (r.task.taskId != taskId) { |
| 1997 | // We hit the bottom. Now finish it all... |
| 1998 | while (i < (mHistory.size()-1)) { |
| 1999 | i++; |
| 2000 | r = (ActivityRecord)mHistory.get(i); |
| 2001 | if (r.task.taskId != taskId) { |
| 2002 | // Whoops hit the end. |
| 2003 | return; |
| 2004 | } |
| 2005 | if (r.finishing) { |
| 2006 | continue; |
| 2007 | } |
| 2008 | if (finishActivityLocked(r, i, Activity.RESULT_CANCELED, |
| 2009 | null, "clear")) { |
| 2010 | i--; |
| 2011 | } |
| 2012 | } |
| 2013 | return; |
| 2014 | } |
| 2015 | } |
| 2016 | } |
| 2017 | |
| 2018 | /** |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 2019 | * Find the activity in the history stack within the given task. Returns |
| 2020 | * the index within the history at which it's found, or < 0 if not found. |
| 2021 | */ |
| 2022 | private final int findActivityInHistoryLocked(ActivityRecord r, int task) { |
| 2023 | int i = mHistory.size(); |
| 2024 | while (i > 0) { |
| 2025 | i--; |
| 2026 | ActivityRecord candidate = (ActivityRecord)mHistory.get(i); |
| 2027 | if (candidate.task.taskId != task) { |
| 2028 | break; |
| 2029 | } |
| 2030 | if (candidate.realActivity.equals(r.realActivity)) { |
| 2031 | return i; |
| 2032 | } |
| 2033 | } |
| 2034 | |
| 2035 | return -1; |
| 2036 | } |
| 2037 | |
| 2038 | /** |
| 2039 | * Reorder the history stack so that the activity at the given index is |
| 2040 | * brought to the front. |
| 2041 | */ |
| 2042 | private final ActivityRecord moveActivityToFrontLocked(int where) { |
| 2043 | ActivityRecord newTop = (ActivityRecord)mHistory.remove(where); |
| 2044 | int top = mHistory.size(); |
| 2045 | ActivityRecord oldTop = (ActivityRecord)mHistory.get(top-1); |
| 2046 | mHistory.add(top, newTop); |
| 2047 | oldTop.frontOfTask = false; |
| 2048 | newTop.frontOfTask = true; |
| 2049 | return newTop; |
| 2050 | } |
| 2051 | |
| 2052 | final int startActivityLocked(IApplicationThread caller, |
| 2053 | Intent intent, String resolvedType, |
| 2054 | Uri[] grantedUriPermissions, |
| 2055 | int grantedMode, ActivityInfo aInfo, IBinder resultTo, |
| 2056 | String resultWho, int requestCode, |
| 2057 | int callingPid, int callingUid, boolean onlyIfNeeded, |
Dianne Hackborn | 621e17d | 2010-11-22 15:59:56 -0800 | [diff] [blame] | 2058 | boolean componentSpecified, ActivityRecord[] outActivity) { |
Dianne Hackborn | efb5810 | 2010-10-14 16:47:34 -0700 | [diff] [blame] | 2059 | |
| 2060 | int err = START_SUCCESS; |
| 2061 | |
| 2062 | ProcessRecord callerApp = null; |
| 2063 | if (caller != null) { |
| 2064 | callerApp = mService.getRecordForAppLocked(caller); |
| 2065 | if (callerApp != null) { |
| 2066 | callingPid = callerApp.pid; |
| 2067 | callingUid = callerApp.info.uid; |
| 2068 | } else { |
| 2069 | Slog.w(TAG, "Unable to find app for caller " + caller |
| 2070 | + " (pid=" + callingPid + ") when starting: " |
| 2071 | + intent.toString()); |
| 2072 | err = START_PERMISSION_DENIED; |
| 2073 | } |
| 2074 | } |
| 2075 | |
| 2076 | if (err == START_SUCCESS) { |
| 2077 | Slog.i(TAG, "Starting: " + intent + " from pid " |
| 2078 | + (callerApp != null ? callerApp.pid : callingPid)); |
| 2079 | } |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 2080 | |
| 2081 | ActivityRecord sourceRecord = null; |
| 2082 | ActivityRecord resultRecord = null; |
| 2083 | if (resultTo != null) { |
| 2084 | int index = indexOfTokenLocked(resultTo); |
| 2085 | if (DEBUG_RESULTS) Slog.v( |
| 2086 | TAG, "Sending result to " + resultTo + " (index " + index + ")"); |
| 2087 | if (index >= 0) { |
| 2088 | sourceRecord = (ActivityRecord)mHistory.get(index); |
| 2089 | if (requestCode >= 0 && !sourceRecord.finishing) { |
| 2090 | resultRecord = sourceRecord; |
| 2091 | } |
| 2092 | } |
| 2093 | } |
| 2094 | |
| 2095 | int launchFlags = intent.getFlags(); |
| 2096 | |
| 2097 | if ((launchFlags&Intent.FLAG_ACTIVITY_FORWARD_RESULT) != 0 |
| 2098 | && sourceRecord != null) { |
| 2099 | // Transfer the result target from the source activity to the new |
| 2100 | // one being started, including any failures. |
| 2101 | if (requestCode >= 0) { |
| 2102 | return START_FORWARD_AND_REQUEST_CONFLICT; |
| 2103 | } |
| 2104 | resultRecord = sourceRecord.resultTo; |
| 2105 | resultWho = sourceRecord.resultWho; |
| 2106 | requestCode = sourceRecord.requestCode; |
| 2107 | sourceRecord.resultTo = null; |
| 2108 | if (resultRecord != null) { |
| 2109 | resultRecord.removeResultsLocked( |
| 2110 | sourceRecord, resultWho, requestCode); |
| 2111 | } |
| 2112 | } |
| 2113 | |
Dianne Hackborn | efb5810 | 2010-10-14 16:47:34 -0700 | [diff] [blame] | 2114 | if (err == START_SUCCESS && intent.getComponent() == null) { |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 2115 | // We couldn't find a class that can handle the given Intent. |
| 2116 | // That's the end of that! |
| 2117 | err = START_INTENT_NOT_RESOLVED; |
| 2118 | } |
| 2119 | |
| 2120 | if (err == START_SUCCESS && aInfo == null) { |
| 2121 | // We couldn't find the specific class specified in the Intent. |
| 2122 | // Also the end of the line. |
| 2123 | err = START_CLASS_NOT_FOUND; |
| 2124 | } |
| 2125 | |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 2126 | if (err != START_SUCCESS) { |
| 2127 | if (resultRecord != null) { |
| 2128 | sendActivityResultLocked(-1, |
| 2129 | resultRecord, resultWho, requestCode, |
| 2130 | Activity.RESULT_CANCELED, null); |
| 2131 | } |
| 2132 | return err; |
| 2133 | } |
| 2134 | |
| 2135 | final int perm = mService.checkComponentPermission(aInfo.permission, callingPid, |
Dianne Hackborn | 6c2c5fc | 2011-01-18 17:02:33 -0800 | [diff] [blame] | 2136 | callingUid, aInfo.applicationInfo.uid, aInfo.exported); |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 2137 | if (perm != PackageManager.PERMISSION_GRANTED) { |
| 2138 | if (resultRecord != null) { |
| 2139 | sendActivityResultLocked(-1, |
| 2140 | resultRecord, resultWho, requestCode, |
| 2141 | Activity.RESULT_CANCELED, null); |
| 2142 | } |
Dianne Hackborn | 6c2c5fc | 2011-01-18 17:02:33 -0800 | [diff] [blame] | 2143 | String msg; |
| 2144 | if (!aInfo.exported) { |
| 2145 | msg = "Permission Denial: starting " + intent.toString() |
| 2146 | + " from " + callerApp + " (pid=" + callingPid |
| 2147 | + ", uid=" + callingUid + ")" |
| 2148 | + " not exported from uid " + aInfo.applicationInfo.uid; |
| 2149 | } else { |
| 2150 | msg = "Permission Denial: starting " + intent.toString() |
| 2151 | + " from " + callerApp + " (pid=" + callingPid |
| 2152 | + ", uid=" + callingUid + ")" |
| 2153 | + " requires " + aInfo.permission; |
| 2154 | } |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 2155 | Slog.w(TAG, msg); |
| 2156 | throw new SecurityException(msg); |
| 2157 | } |
| 2158 | |
| 2159 | if (mMainStack) { |
| 2160 | if (mService.mController != null) { |
| 2161 | boolean abort = false; |
| 2162 | try { |
| 2163 | // The Intent we give to the watcher has the extra data |
| 2164 | // stripped off, since it can contain private information. |
| 2165 | Intent watchIntent = intent.cloneFilter(); |
| 2166 | abort = !mService.mController.activityStarting(watchIntent, |
| 2167 | aInfo.applicationInfo.packageName); |
| 2168 | } catch (RemoteException e) { |
| 2169 | mService.mController = null; |
| 2170 | } |
| 2171 | |
| 2172 | if (abort) { |
| 2173 | if (resultRecord != null) { |
| 2174 | sendActivityResultLocked(-1, |
| 2175 | resultRecord, resultWho, requestCode, |
| 2176 | Activity.RESULT_CANCELED, null); |
| 2177 | } |
| 2178 | // We pretend to the caller that it was really started, but |
| 2179 | // they will just get a cancel result. |
| 2180 | return START_SUCCESS; |
| 2181 | } |
| 2182 | } |
| 2183 | } |
| 2184 | |
| 2185 | ActivityRecord r = new ActivityRecord(mService, this, callerApp, callingUid, |
| 2186 | intent, resolvedType, aInfo, mService.mConfiguration, |
| 2187 | resultRecord, resultWho, requestCode, componentSpecified); |
Dianne Hackborn | 621e17d | 2010-11-22 15:59:56 -0800 | [diff] [blame] | 2188 | if (outActivity != null) { |
| 2189 | outActivity[0] = r; |
| 2190 | } |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 2191 | |
| 2192 | if (mMainStack) { |
| 2193 | if (mResumedActivity == null |
| 2194 | || mResumedActivity.info.applicationInfo.uid != callingUid) { |
| 2195 | if (!mService.checkAppSwitchAllowedLocked(callingPid, callingUid, "Activity start")) { |
| 2196 | PendingActivityLaunch pal = new PendingActivityLaunch(); |
| 2197 | pal.r = r; |
| 2198 | pal.sourceRecord = sourceRecord; |
| 2199 | pal.grantedUriPermissions = grantedUriPermissions; |
| 2200 | pal.grantedMode = grantedMode; |
| 2201 | pal.onlyIfNeeded = onlyIfNeeded; |
| 2202 | mService.mPendingActivityLaunches.add(pal); |
| 2203 | return START_SWITCHES_CANCELED; |
| 2204 | } |
| 2205 | } |
| 2206 | |
| 2207 | if (mService.mDidAppSwitch) { |
| 2208 | // This is the second allowed switch since we stopped switches, |
| 2209 | // so now just generally allow switches. Use case: user presses |
| 2210 | // home (switches disabled, switch to home, mDidAppSwitch now true); |
| 2211 | // user taps a home icon (coming from home so allowed, we hit here |
| 2212 | // and now allow anyone to switch again). |
| 2213 | mService.mAppSwitchesAllowedTime = 0; |
| 2214 | } else { |
| 2215 | mService.mDidAppSwitch = true; |
| 2216 | } |
| 2217 | |
| 2218 | mService.doPendingActivityLaunchesLocked(false); |
| 2219 | } |
| 2220 | |
| 2221 | return startActivityUncheckedLocked(r, sourceRecord, |
| 2222 | grantedUriPermissions, grantedMode, onlyIfNeeded, true); |
| 2223 | } |
| 2224 | |
Dianne Hackborn | 621e17d | 2010-11-22 15:59:56 -0800 | [diff] [blame] | 2225 | final void moveHomeToFrontFromLaunchLocked(int launchFlags) { |
| 2226 | if ((launchFlags & |
| 2227 | (Intent.FLAG_ACTIVITY_NEW_TASK|Intent.FLAG_ACTIVITY_TASK_ON_HOME)) |
| 2228 | == (Intent.FLAG_ACTIVITY_NEW_TASK|Intent.FLAG_ACTIVITY_TASK_ON_HOME)) { |
| 2229 | // Caller wants to appear on home activity, so before starting |
| 2230 | // their own activity we will bring home to the front. |
| 2231 | moveHomeToFrontLocked(); |
| 2232 | } |
| 2233 | } |
| 2234 | |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 2235 | final int startActivityUncheckedLocked(ActivityRecord r, |
| 2236 | ActivityRecord sourceRecord, Uri[] grantedUriPermissions, |
| 2237 | int grantedMode, boolean onlyIfNeeded, boolean doResume) { |
| 2238 | final Intent intent = r.intent; |
| 2239 | final int callingUid = r.launchedFromUid; |
| 2240 | |
| 2241 | int launchFlags = intent.getFlags(); |
| 2242 | |
| 2243 | // We'll invoke onUserLeaving before onPause only if the launching |
| 2244 | // activity did not explicitly state that this is an automated launch. |
| 2245 | mUserLeaving = (launchFlags&Intent.FLAG_ACTIVITY_NO_USER_ACTION) == 0; |
| 2246 | if (DEBUG_USER_LEAVING) Slog.v(TAG, |
| 2247 | "startActivity() => mUserLeaving=" + mUserLeaving); |
| 2248 | |
| 2249 | // If the caller has asked not to resume at this point, we make note |
| 2250 | // of this in the record so that we can skip it when trying to find |
| 2251 | // the top running activity. |
| 2252 | if (!doResume) { |
| 2253 | r.delayedResume = true; |
| 2254 | } |
| 2255 | |
| 2256 | ActivityRecord notTop = (launchFlags&Intent.FLAG_ACTIVITY_PREVIOUS_IS_TOP) |
| 2257 | != 0 ? r : null; |
| 2258 | |
| 2259 | // If the onlyIfNeeded flag is set, then we can do this if the activity |
| 2260 | // being launched is the same as the one making the call... or, as |
| 2261 | // a special case, if we do not know the caller then we count the |
| 2262 | // current top activity as the caller. |
| 2263 | if (onlyIfNeeded) { |
| 2264 | ActivityRecord checkedCaller = sourceRecord; |
| 2265 | if (checkedCaller == null) { |
| 2266 | checkedCaller = topRunningNonDelayedActivityLocked(notTop); |
| 2267 | } |
| 2268 | if (!checkedCaller.realActivity.equals(r.realActivity)) { |
| 2269 | // Caller is not the same as launcher, so always needed. |
| 2270 | onlyIfNeeded = false; |
| 2271 | } |
| 2272 | } |
| 2273 | |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 2274 | if (sourceRecord == null) { |
| 2275 | // This activity is not being started from another... in this |
| 2276 | // case we -always- start a new task. |
| 2277 | if ((launchFlags&Intent.FLAG_ACTIVITY_NEW_TASK) == 0) { |
| 2278 | Slog.w(TAG, "startActivity called from non-Activity context; forcing Intent.FLAG_ACTIVITY_NEW_TASK for: " |
| 2279 | + intent); |
| 2280 | launchFlags |= Intent.FLAG_ACTIVITY_NEW_TASK; |
| 2281 | } |
| 2282 | } else if (sourceRecord.launchMode == ActivityInfo.LAUNCH_SINGLE_INSTANCE) { |
| 2283 | // The original activity who is starting us is running as a single |
| 2284 | // instance... this new activity it is starting must go on its |
| 2285 | // own task. |
| 2286 | launchFlags |= Intent.FLAG_ACTIVITY_NEW_TASK; |
| 2287 | } else if (r.launchMode == ActivityInfo.LAUNCH_SINGLE_INSTANCE |
| 2288 | || r.launchMode == ActivityInfo.LAUNCH_SINGLE_TASK) { |
| 2289 | // The activity being started is a single instance... it always |
| 2290 | // gets launched into its own task. |
| 2291 | launchFlags |= Intent.FLAG_ACTIVITY_NEW_TASK; |
| 2292 | } |
| 2293 | |
| 2294 | if (r.resultTo != null && (launchFlags&Intent.FLAG_ACTIVITY_NEW_TASK) != 0) { |
| 2295 | // For whatever reason this activity is being launched into a new |
| 2296 | // task... yet the caller has requested a result back. Well, that |
| 2297 | // is pretty messed up, so instead immediately send back a cancel |
| 2298 | // and let the new task continue launched as normal without a |
| 2299 | // dependency on its originator. |
| 2300 | Slog.w(TAG, "Activity is launching as a new task, so cancelling activity result."); |
| 2301 | sendActivityResultLocked(-1, |
| 2302 | r.resultTo, r.resultWho, r.requestCode, |
| 2303 | Activity.RESULT_CANCELED, null); |
| 2304 | r.resultTo = null; |
| 2305 | } |
| 2306 | |
| 2307 | boolean addingToTask = false; |
Dianne Hackborn | 621e17d | 2010-11-22 15:59:56 -0800 | [diff] [blame] | 2308 | TaskRecord reuseTask = null; |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 2309 | if (((launchFlags&Intent.FLAG_ACTIVITY_NEW_TASK) != 0 && |
| 2310 | (launchFlags&Intent.FLAG_ACTIVITY_MULTIPLE_TASK) == 0) |
| 2311 | || r.launchMode == ActivityInfo.LAUNCH_SINGLE_TASK |
| 2312 | || r.launchMode == ActivityInfo.LAUNCH_SINGLE_INSTANCE) { |
| 2313 | // If bring to front is requested, and no result is requested, and |
| 2314 | // we can find a task that was started with this same |
| 2315 | // component, then instead of launching bring that one to the front. |
| 2316 | if (r.resultTo == null) { |
| 2317 | // See if there is a task to bring to the front. If this is |
| 2318 | // a SINGLE_INSTANCE activity, there can be one and only one |
| 2319 | // instance of it in the history, and it is always in its own |
| 2320 | // unique task, so we do a special search. |
| 2321 | ActivityRecord taskTop = r.launchMode != ActivityInfo.LAUNCH_SINGLE_INSTANCE |
| 2322 | ? findTaskLocked(intent, r.info) |
| 2323 | : findActivityLocked(intent, r.info); |
| 2324 | if (taskTop != null) { |
| 2325 | if (taskTop.task.intent == null) { |
| 2326 | // This task was started because of movement of |
| 2327 | // the activity based on affinity... now that we |
| 2328 | // are actually launching it, we can assign the |
| 2329 | // base intent. |
| 2330 | taskTop.task.setIntent(intent, r.info); |
| 2331 | } |
| 2332 | // If the target task is not in the front, then we need |
| 2333 | // to bring it to the front... except... well, with |
| 2334 | // SINGLE_TASK_LAUNCH it's not entirely clear. We'd like |
| 2335 | // to have the same behavior as if a new instance was |
| 2336 | // being started, which means not bringing it to the front |
| 2337 | // if the caller is not itself in the front. |
| 2338 | ActivityRecord curTop = topRunningNonDelayedActivityLocked(notTop); |
Jean-Baptiste Queru | 66a5d69 | 2010-10-25 17:27:16 -0700 | [diff] [blame] | 2339 | if (curTop != null && curTop.task != taskTop.task) { |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 2340 | r.intent.addFlags(Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT); |
| 2341 | boolean callerAtFront = sourceRecord == null |
| 2342 | || curTop.task == sourceRecord.task; |
| 2343 | if (callerAtFront) { |
| 2344 | // We really do want to push this one into the |
| 2345 | // user's face, right now. |
Dianne Hackborn | 621e17d | 2010-11-22 15:59:56 -0800 | [diff] [blame] | 2346 | moveHomeToFrontFromLaunchLocked(launchFlags); |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 2347 | moveTaskToFrontLocked(taskTop.task, r); |
| 2348 | } |
| 2349 | } |
| 2350 | // If the caller has requested that the target task be |
| 2351 | // reset, then do so. |
| 2352 | if ((launchFlags&Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED) != 0) { |
| 2353 | taskTop = resetTaskIfNeededLocked(taskTop, r); |
| 2354 | } |
| 2355 | if (onlyIfNeeded) { |
| 2356 | // We don't need to start a new activity, and |
| 2357 | // the client said not to do anything if that |
| 2358 | // is the case, so this is it! And for paranoia, make |
| 2359 | // sure we have correctly resumed the top activity. |
| 2360 | if (doResume) { |
| 2361 | resumeTopActivityLocked(null); |
| 2362 | } |
| 2363 | return START_RETURN_INTENT_TO_CALLER; |
| 2364 | } |
Dianne Hackborn | 621e17d | 2010-11-22 15:59:56 -0800 | [diff] [blame] | 2365 | if ((launchFlags & |
| 2366 | (Intent.FLAG_ACTIVITY_NEW_TASK|Intent.FLAG_ACTIVITY_CLEAR_TASK)) |
| 2367 | == (Intent.FLAG_ACTIVITY_NEW_TASK|Intent.FLAG_ACTIVITY_CLEAR_TASK)) { |
| 2368 | // The caller has requested to completely replace any |
Dianne Hackborn | 7da6ac3 | 2010-12-09 19:22:04 -0800 | [diff] [blame] | 2369 | // existing task with its new activity. Well that should |
Dianne Hackborn | 621e17d | 2010-11-22 15:59:56 -0800 | [diff] [blame] | 2370 | // not be too hard... |
| 2371 | reuseTask = taskTop.task; |
| 2372 | performClearTaskLocked(taskTop.task.taskId); |
| 2373 | reuseTask.setIntent(r.intent, r.info); |
| 2374 | } else if ((launchFlags&Intent.FLAG_ACTIVITY_CLEAR_TOP) != 0 |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 2375 | || r.launchMode == ActivityInfo.LAUNCH_SINGLE_TASK |
| 2376 | || r.launchMode == ActivityInfo.LAUNCH_SINGLE_INSTANCE) { |
| 2377 | // In this situation we want to remove all activities |
| 2378 | // from the task up to the one being started. In most |
| 2379 | // cases this means we are resetting the task to its |
| 2380 | // initial state. |
| 2381 | ActivityRecord top = performClearTaskLocked( |
Dianne Hackborn | 621e17d | 2010-11-22 15:59:56 -0800 | [diff] [blame] | 2382 | taskTop.task.taskId, r, launchFlags); |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 2383 | if (top != null) { |
| 2384 | if (top.frontOfTask) { |
| 2385 | // Activity aliases may mean we use different |
| 2386 | // intents for the top activity, so make sure |
| 2387 | // the task now has the identity of the new |
| 2388 | // intent. |
| 2389 | top.task.setIntent(r.intent, r.info); |
| 2390 | } |
| 2391 | logStartActivity(EventLogTags.AM_NEW_INTENT, r, top.task); |
Dianne Hackborn | 39792d2 | 2010-08-19 18:01:52 -0700 | [diff] [blame] | 2392 | top.deliverNewIntentLocked(callingUid, r.intent); |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 2393 | } else { |
| 2394 | // A special case: we need to |
| 2395 | // start the activity because it is not currently |
| 2396 | // running, and the caller has asked to clear the |
| 2397 | // current task to have this activity at the top. |
| 2398 | addingToTask = true; |
| 2399 | // Now pretend like this activity is being started |
| 2400 | // by the top of its task, so it is put in the |
| 2401 | // right place. |
| 2402 | sourceRecord = taskTop; |
| 2403 | } |
| 2404 | } else if (r.realActivity.equals(taskTop.task.realActivity)) { |
| 2405 | // In this case the top activity on the task is the |
| 2406 | // same as the one being launched, so we take that |
| 2407 | // as a request to bring the task to the foreground. |
| 2408 | // If the top activity in the task is the root |
| 2409 | // activity, deliver this new intent to it if it |
| 2410 | // desires. |
| 2411 | if ((launchFlags&Intent.FLAG_ACTIVITY_SINGLE_TOP) != 0 |
| 2412 | && taskTop.realActivity.equals(r.realActivity)) { |
| 2413 | logStartActivity(EventLogTags.AM_NEW_INTENT, r, taskTop.task); |
| 2414 | if (taskTop.frontOfTask) { |
| 2415 | taskTop.task.setIntent(r.intent, r.info); |
| 2416 | } |
Dianne Hackborn | 39792d2 | 2010-08-19 18:01:52 -0700 | [diff] [blame] | 2417 | taskTop.deliverNewIntentLocked(callingUid, r.intent); |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 2418 | } else if (!r.intent.filterEquals(taskTop.task.intent)) { |
| 2419 | // In this case we are launching the root activity |
| 2420 | // of the task, but with a different intent. We |
| 2421 | // should start a new instance on top. |
| 2422 | addingToTask = true; |
| 2423 | sourceRecord = taskTop; |
| 2424 | } |
| 2425 | } else if ((launchFlags&Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED) == 0) { |
| 2426 | // In this case an activity is being launched in to an |
| 2427 | // existing task, without resetting that task. This |
| 2428 | // is typically the situation of launching an activity |
| 2429 | // from a notification or shortcut. We want to place |
| 2430 | // the new activity on top of the current task. |
| 2431 | addingToTask = true; |
| 2432 | sourceRecord = taskTop; |
| 2433 | } else if (!taskTop.task.rootWasReset) { |
| 2434 | // In this case we are launching in to an existing task |
| 2435 | // that has not yet been started from its front door. |
| 2436 | // The current task has been brought to the front. |
| 2437 | // Ideally, we'd probably like to place this new task |
| 2438 | // at the bottom of its stack, but that's a little hard |
| 2439 | // to do with the current organization of the code so |
| 2440 | // for now we'll just drop it. |
| 2441 | taskTop.task.setIntent(r.intent, r.info); |
| 2442 | } |
Dianne Hackborn | 621e17d | 2010-11-22 15:59:56 -0800 | [diff] [blame] | 2443 | if (!addingToTask && reuseTask == null) { |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 2444 | // We didn't do anything... but it was needed (a.k.a., client |
| 2445 | // don't use that intent!) And for paranoia, make |
| 2446 | // sure we have correctly resumed the top activity. |
| 2447 | if (doResume) { |
| 2448 | resumeTopActivityLocked(null); |
| 2449 | } |
| 2450 | return START_TASK_TO_FRONT; |
| 2451 | } |
| 2452 | } |
| 2453 | } |
| 2454 | } |
| 2455 | |
| 2456 | //String uri = r.intent.toURI(); |
| 2457 | //Intent intent2 = new Intent(uri); |
| 2458 | //Slog.i(TAG, "Given intent: " + r.intent); |
| 2459 | //Slog.i(TAG, "URI is: " + uri); |
| 2460 | //Slog.i(TAG, "To intent: " + intent2); |
| 2461 | |
| 2462 | if (r.packageName != null) { |
| 2463 | // If the activity being launched is the same as the one currently |
| 2464 | // at the top, then we need to check if it should only be launched |
| 2465 | // once. |
| 2466 | ActivityRecord top = topRunningNonDelayedActivityLocked(notTop); |
| 2467 | if (top != null && r.resultTo == null) { |
| 2468 | if (top.realActivity.equals(r.realActivity)) { |
| 2469 | if (top.app != null && top.app.thread != null) { |
| 2470 | if ((launchFlags&Intent.FLAG_ACTIVITY_SINGLE_TOP) != 0 |
| 2471 | || r.launchMode == ActivityInfo.LAUNCH_SINGLE_TOP |
| 2472 | || r.launchMode == ActivityInfo.LAUNCH_SINGLE_TASK) { |
| 2473 | logStartActivity(EventLogTags.AM_NEW_INTENT, top, top.task); |
| 2474 | // For paranoia, make sure we have correctly |
| 2475 | // resumed the top activity. |
| 2476 | if (doResume) { |
| 2477 | resumeTopActivityLocked(null); |
| 2478 | } |
| 2479 | if (onlyIfNeeded) { |
| 2480 | // We don't need to start a new activity, and |
| 2481 | // the client said not to do anything if that |
| 2482 | // is the case, so this is it! |
| 2483 | return START_RETURN_INTENT_TO_CALLER; |
| 2484 | } |
Dianne Hackborn | 39792d2 | 2010-08-19 18:01:52 -0700 | [diff] [blame] | 2485 | top.deliverNewIntentLocked(callingUid, r.intent); |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 2486 | return START_DELIVERED_TO_TOP; |
| 2487 | } |
| 2488 | } |
| 2489 | } |
| 2490 | } |
| 2491 | |
| 2492 | } else { |
| 2493 | if (r.resultTo != null) { |
| 2494 | sendActivityResultLocked(-1, |
| 2495 | r.resultTo, r.resultWho, r.requestCode, |
| 2496 | Activity.RESULT_CANCELED, null); |
| 2497 | } |
| 2498 | return START_CLASS_NOT_FOUND; |
| 2499 | } |
| 2500 | |
| 2501 | boolean newTask = false; |
Dianne Hackborn | 7da6ac3 | 2010-12-09 19:22:04 -0800 | [diff] [blame] | 2502 | boolean keepCurTransition = false; |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 2503 | |
| 2504 | // Should this be considered a new task? |
| 2505 | if (r.resultTo == null && !addingToTask |
| 2506 | && (launchFlags&Intent.FLAG_ACTIVITY_NEW_TASK) != 0) { |
Dianne Hackborn | 621e17d | 2010-11-22 15:59:56 -0800 | [diff] [blame] | 2507 | if (reuseTask == null) { |
| 2508 | // todo: should do better management of integers. |
| 2509 | mService.mCurTask++; |
| 2510 | if (mService.mCurTask <= 0) { |
| 2511 | mService.mCurTask = 1; |
| 2512 | } |
| 2513 | r.task = new TaskRecord(mService.mCurTask, r.info, intent); |
| 2514 | if (DEBUG_TASKS) Slog.v(TAG, "Starting new activity " + r |
| 2515 | + " in new task " + r.task); |
| 2516 | } else { |
| 2517 | r.task = reuseTask; |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 2518 | } |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 2519 | newTask = true; |
Dianne Hackborn | 621e17d | 2010-11-22 15:59:56 -0800 | [diff] [blame] | 2520 | moveHomeToFrontFromLaunchLocked(launchFlags); |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 2521 | |
| 2522 | } else if (sourceRecord != null) { |
| 2523 | if (!addingToTask && |
| 2524 | (launchFlags&Intent.FLAG_ACTIVITY_CLEAR_TOP) != 0) { |
| 2525 | // In this case, we are adding the activity to an existing |
| 2526 | // task, but the caller has asked to clear that task if the |
| 2527 | // activity is already running. |
| 2528 | ActivityRecord top = performClearTaskLocked( |
Dianne Hackborn | 621e17d | 2010-11-22 15:59:56 -0800 | [diff] [blame] | 2529 | sourceRecord.task.taskId, r, launchFlags); |
Dianne Hackborn | 7da6ac3 | 2010-12-09 19:22:04 -0800 | [diff] [blame] | 2530 | keepCurTransition = true; |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 2531 | if (top != null) { |
| 2532 | logStartActivity(EventLogTags.AM_NEW_INTENT, r, top.task); |
Dianne Hackborn | 39792d2 | 2010-08-19 18:01:52 -0700 | [diff] [blame] | 2533 | top.deliverNewIntentLocked(callingUid, r.intent); |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 2534 | // For paranoia, make sure we have correctly |
| 2535 | // resumed the top activity. |
| 2536 | if (doResume) { |
| 2537 | resumeTopActivityLocked(null); |
| 2538 | } |
| 2539 | return START_DELIVERED_TO_TOP; |
| 2540 | } |
| 2541 | } else if (!addingToTask && |
| 2542 | (launchFlags&Intent.FLAG_ACTIVITY_REORDER_TO_FRONT) != 0) { |
| 2543 | // In this case, we are launching an activity in our own task |
| 2544 | // that may already be running somewhere in the history, and |
| 2545 | // we want to shuffle it to the front of the stack if so. |
| 2546 | int where = findActivityInHistoryLocked(r, sourceRecord.task.taskId); |
| 2547 | if (where >= 0) { |
| 2548 | ActivityRecord top = moveActivityToFrontLocked(where); |
| 2549 | logStartActivity(EventLogTags.AM_NEW_INTENT, r, top.task); |
Dianne Hackborn | 39792d2 | 2010-08-19 18:01:52 -0700 | [diff] [blame] | 2550 | top.deliverNewIntentLocked(callingUid, r.intent); |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 2551 | if (doResume) { |
| 2552 | resumeTopActivityLocked(null); |
| 2553 | } |
| 2554 | return START_DELIVERED_TO_TOP; |
| 2555 | } |
| 2556 | } |
| 2557 | // An existing activity is starting this new activity, so we want |
| 2558 | // to keep the new one in the same task as the one that is starting |
| 2559 | // it. |
| 2560 | r.task = sourceRecord.task; |
| 2561 | if (DEBUG_TASKS) Slog.v(TAG, "Starting new activity " + r |
| 2562 | + " in existing task " + r.task); |
| 2563 | |
| 2564 | } else { |
| 2565 | // This not being started from an existing activity, and not part |
| 2566 | // of a new task... just put it in the top task, though these days |
| 2567 | // this case should never happen. |
| 2568 | final int N = mHistory.size(); |
| 2569 | ActivityRecord prev = |
| 2570 | N > 0 ? (ActivityRecord)mHistory.get(N-1) : null; |
| 2571 | r.task = prev != null |
Dianne Hackborn | 621e17d | 2010-11-22 15:59:56 -0800 | [diff] [blame] | 2572 | ? prev.task |
| 2573 | : new TaskRecord(mService.mCurTask, r.info, intent); |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 2574 | if (DEBUG_TASKS) Slog.v(TAG, "Starting new activity " + r |
| 2575 | + " in new guessed " + r.task); |
| 2576 | } |
Dianne Hackborn | 39792d2 | 2010-08-19 18:01:52 -0700 | [diff] [blame] | 2577 | |
| 2578 | if (grantedUriPermissions != null && callingUid > 0) { |
| 2579 | for (int i=0; i<grantedUriPermissions.length; i++) { |
| 2580 | mService.grantUriPermissionLocked(callingUid, r.packageName, |
Dianne Hackborn | 7e26964 | 2010-08-25 19:50:20 -0700 | [diff] [blame] | 2581 | grantedUriPermissions[i], grantedMode, r.getUriPermissionsLocked()); |
Dianne Hackborn | 39792d2 | 2010-08-19 18:01:52 -0700 | [diff] [blame] | 2582 | } |
| 2583 | } |
| 2584 | |
| 2585 | mService.grantUriPermissionFromIntentLocked(callingUid, r.packageName, |
Dianne Hackborn | 7e26964 | 2010-08-25 19:50:20 -0700 | [diff] [blame] | 2586 | intent, r.getUriPermissionsLocked()); |
Dianne Hackborn | 39792d2 | 2010-08-19 18:01:52 -0700 | [diff] [blame] | 2587 | |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 2588 | if (newTask) { |
| 2589 | EventLog.writeEvent(EventLogTags.AM_CREATE_TASK, r.task.taskId); |
| 2590 | } |
| 2591 | logStartActivity(EventLogTags.AM_CREATE_ACTIVITY, r, r.task); |
Dianne Hackborn | 7da6ac3 | 2010-12-09 19:22:04 -0800 | [diff] [blame] | 2592 | startActivityLocked(r, newTask, doResume, keepCurTransition); |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 2593 | return START_SUCCESS; |
| 2594 | } |
| 2595 | |
Dianne Hackborn | 621e17d | 2010-11-22 15:59:56 -0800 | [diff] [blame] | 2596 | ActivityInfo resolveActivity(Intent intent, String resolvedType, boolean debug) { |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 2597 | // Collect information about the target of the Intent. |
| 2598 | ActivityInfo aInfo; |
| 2599 | try { |
| 2600 | ResolveInfo rInfo = |
| 2601 | AppGlobals.getPackageManager().resolveIntent( |
| 2602 | intent, resolvedType, |
| 2603 | PackageManager.MATCH_DEFAULT_ONLY |
| 2604 | | ActivityManagerService.STOCK_PM_FLAGS); |
| 2605 | aInfo = rInfo != null ? rInfo.activityInfo : null; |
| 2606 | } catch (RemoteException e) { |
| 2607 | aInfo = null; |
| 2608 | } |
| 2609 | |
| 2610 | if (aInfo != null) { |
| 2611 | // Store the found target back into the intent, because now that |
| 2612 | // we have it we never want to do this again. For example, if the |
| 2613 | // user navigates back to this point in the history, we should |
| 2614 | // always restart the exact same activity. |
| 2615 | intent.setComponent(new ComponentName( |
| 2616 | aInfo.applicationInfo.packageName, aInfo.name)); |
| 2617 | |
| 2618 | // Don't debug things in the system process |
| 2619 | if (debug) { |
| 2620 | if (!aInfo.processName.equals("system")) { |
| 2621 | mService.setDebugApp(aInfo.processName, true, false); |
| 2622 | } |
| 2623 | } |
| 2624 | } |
Dianne Hackborn | 621e17d | 2010-11-22 15:59:56 -0800 | [diff] [blame] | 2625 | return aInfo; |
| 2626 | } |
| 2627 | |
| 2628 | final int startActivityMayWait(IApplicationThread caller, int callingUid, |
| 2629 | Intent intent, String resolvedType, Uri[] grantedUriPermissions, |
| 2630 | int grantedMode, IBinder resultTo, |
| 2631 | String resultWho, int requestCode, boolean onlyIfNeeded, |
| 2632 | boolean debug, WaitResult outResult, Configuration config) { |
| 2633 | // Refuse possible leaked file descriptors |
| 2634 | if (intent != null && intent.hasFileDescriptors()) { |
| 2635 | throw new IllegalArgumentException("File descriptors passed in Intent"); |
| 2636 | } |
| 2637 | |
| 2638 | boolean componentSpecified = intent.getComponent() != null; |
| 2639 | |
| 2640 | // Don't modify the client's object! |
| 2641 | intent = new Intent(intent); |
| 2642 | |
| 2643 | // Collect information about the target of the Intent. |
| 2644 | ActivityInfo aInfo = resolveActivity(intent, resolvedType, debug); |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 2645 | |
| 2646 | synchronized (mService) { |
| 2647 | int callingPid; |
Dianne Hackborn | 621e17d | 2010-11-22 15:59:56 -0800 | [diff] [blame] | 2648 | if (callingUid >= 0) { |
| 2649 | callingPid = -1; |
| 2650 | } else if (caller == null) { |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 2651 | callingPid = Binder.getCallingPid(); |
| 2652 | callingUid = Binder.getCallingUid(); |
| 2653 | } else { |
| 2654 | callingPid = callingUid = -1; |
| 2655 | } |
| 2656 | |
| 2657 | mConfigWillChange = config != null |
| 2658 | && mService.mConfiguration.diff(config) != 0; |
| 2659 | if (DEBUG_CONFIGURATION) Slog.v(TAG, |
| 2660 | "Starting activity when config will change = " + mConfigWillChange); |
| 2661 | |
| 2662 | final long origId = Binder.clearCallingIdentity(); |
| 2663 | |
| 2664 | if (mMainStack && aInfo != null && |
Dianne Hackborn | 54e570f | 2010-10-04 18:32:32 -0700 | [diff] [blame] | 2665 | (aInfo.applicationInfo.flags&ApplicationInfo.FLAG_CANT_SAVE_STATE) != 0) { |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 2666 | // This may be a heavy-weight process! Check to see if we already |
| 2667 | // have another, different heavy-weight process running. |
| 2668 | if (aInfo.processName.equals(aInfo.applicationInfo.packageName)) { |
| 2669 | if (mService.mHeavyWeightProcess != null && |
| 2670 | (mService.mHeavyWeightProcess.info.uid != aInfo.applicationInfo.uid || |
| 2671 | !mService.mHeavyWeightProcess.processName.equals(aInfo.processName))) { |
| 2672 | int realCallingPid = callingPid; |
| 2673 | int realCallingUid = callingUid; |
| 2674 | if (caller != null) { |
| 2675 | ProcessRecord callerApp = mService.getRecordForAppLocked(caller); |
| 2676 | if (callerApp != null) { |
| 2677 | realCallingPid = callerApp.pid; |
| 2678 | realCallingUid = callerApp.info.uid; |
| 2679 | } else { |
| 2680 | Slog.w(TAG, "Unable to find app for caller " + caller |
| 2681 | + " (pid=" + realCallingPid + ") when starting: " |
| 2682 | + intent.toString()); |
| 2683 | return START_PERMISSION_DENIED; |
| 2684 | } |
| 2685 | } |
| 2686 | |
| 2687 | IIntentSender target = mService.getIntentSenderLocked( |
| 2688 | IActivityManager.INTENT_SENDER_ACTIVITY, "android", |
Dianne Hackborn | 621e17d | 2010-11-22 15:59:56 -0800 | [diff] [blame] | 2689 | realCallingUid, null, null, 0, new Intent[] { intent }, |
| 2690 | new String[] { resolvedType }, PendingIntent.FLAG_CANCEL_CURRENT |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 2691 | | PendingIntent.FLAG_ONE_SHOT); |
| 2692 | |
| 2693 | Intent newIntent = new Intent(); |
| 2694 | if (requestCode >= 0) { |
| 2695 | // Caller is requesting a result. |
| 2696 | newIntent.putExtra(HeavyWeightSwitcherActivity.KEY_HAS_RESULT, true); |
| 2697 | } |
| 2698 | newIntent.putExtra(HeavyWeightSwitcherActivity.KEY_INTENT, |
| 2699 | new IntentSender(target)); |
| 2700 | if (mService.mHeavyWeightProcess.activities.size() > 0) { |
| 2701 | ActivityRecord hist = mService.mHeavyWeightProcess.activities.get(0); |
| 2702 | newIntent.putExtra(HeavyWeightSwitcherActivity.KEY_CUR_APP, |
| 2703 | hist.packageName); |
| 2704 | newIntent.putExtra(HeavyWeightSwitcherActivity.KEY_CUR_TASK, |
| 2705 | hist.task.taskId); |
| 2706 | } |
| 2707 | newIntent.putExtra(HeavyWeightSwitcherActivity.KEY_NEW_APP, |
| 2708 | aInfo.packageName); |
| 2709 | newIntent.setFlags(intent.getFlags()); |
| 2710 | newIntent.setClassName("android", |
| 2711 | HeavyWeightSwitcherActivity.class.getName()); |
| 2712 | intent = newIntent; |
| 2713 | resolvedType = null; |
| 2714 | caller = null; |
| 2715 | callingUid = Binder.getCallingUid(); |
| 2716 | callingPid = Binder.getCallingPid(); |
| 2717 | componentSpecified = true; |
| 2718 | try { |
| 2719 | ResolveInfo rInfo = |
| 2720 | AppGlobals.getPackageManager().resolveIntent( |
| 2721 | intent, null, |
| 2722 | PackageManager.MATCH_DEFAULT_ONLY |
| 2723 | | ActivityManagerService.STOCK_PM_FLAGS); |
| 2724 | aInfo = rInfo != null ? rInfo.activityInfo : null; |
| 2725 | } catch (RemoteException e) { |
| 2726 | aInfo = null; |
| 2727 | } |
| 2728 | } |
| 2729 | } |
| 2730 | } |
| 2731 | |
| 2732 | int res = startActivityLocked(caller, intent, resolvedType, |
| 2733 | grantedUriPermissions, grantedMode, aInfo, |
| 2734 | resultTo, resultWho, requestCode, callingPid, callingUid, |
Dianne Hackborn | 621e17d | 2010-11-22 15:59:56 -0800 | [diff] [blame] | 2735 | onlyIfNeeded, componentSpecified, null); |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 2736 | |
| 2737 | if (mConfigWillChange && mMainStack) { |
| 2738 | // If the caller also wants to switch to a new configuration, |
| 2739 | // do so now. This allows a clean switch, as we are waiting |
| 2740 | // for the current activity to pause (so we will not destroy |
| 2741 | // it), and have not yet started the next activity. |
| 2742 | mService.enforceCallingPermission(android.Manifest.permission.CHANGE_CONFIGURATION, |
| 2743 | "updateConfiguration()"); |
| 2744 | mConfigWillChange = false; |
| 2745 | if (DEBUG_CONFIGURATION) Slog.v(TAG, |
| 2746 | "Updating to new configuration after starting activity."); |
| 2747 | mService.updateConfigurationLocked(config, null); |
| 2748 | } |
| 2749 | |
| 2750 | Binder.restoreCallingIdentity(origId); |
| 2751 | |
| 2752 | if (outResult != null) { |
| 2753 | outResult.result = res; |
| 2754 | if (res == IActivityManager.START_SUCCESS) { |
| 2755 | mWaitingActivityLaunched.add(outResult); |
| 2756 | do { |
| 2757 | try { |
Dianne Hackborn | ba0492d | 2010-10-12 19:01:46 -0700 | [diff] [blame] | 2758 | mService.wait(); |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 2759 | } catch (InterruptedException e) { |
| 2760 | } |
| 2761 | } while (!outResult.timeout && outResult.who == null); |
| 2762 | } else if (res == IActivityManager.START_TASK_TO_FRONT) { |
| 2763 | ActivityRecord r = this.topRunningActivityLocked(null); |
| 2764 | if (r.nowVisible) { |
| 2765 | outResult.timeout = false; |
| 2766 | outResult.who = new ComponentName(r.info.packageName, r.info.name); |
| 2767 | outResult.totalTime = 0; |
| 2768 | outResult.thisTime = 0; |
| 2769 | } else { |
| 2770 | outResult.thisTime = SystemClock.uptimeMillis(); |
| 2771 | mWaitingActivityVisible.add(outResult); |
| 2772 | do { |
| 2773 | try { |
Dianne Hackborn | ba0492d | 2010-10-12 19:01:46 -0700 | [diff] [blame] | 2774 | mService.wait(); |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 2775 | } catch (InterruptedException e) { |
| 2776 | } |
| 2777 | } while (!outResult.timeout && outResult.who == null); |
| 2778 | } |
| 2779 | } |
| 2780 | } |
| 2781 | |
| 2782 | return res; |
| 2783 | } |
| 2784 | } |
| 2785 | |
Dianne Hackborn | 621e17d | 2010-11-22 15:59:56 -0800 | [diff] [blame] | 2786 | final int startActivities(IApplicationThread caller, int callingUid, |
| 2787 | Intent[] intents, String[] resolvedTypes, IBinder resultTo) { |
| 2788 | if (intents == null) { |
| 2789 | throw new NullPointerException("intents is null"); |
| 2790 | } |
| 2791 | if (resolvedTypes == null) { |
| 2792 | throw new NullPointerException("resolvedTypes is null"); |
| 2793 | } |
| 2794 | if (intents.length != resolvedTypes.length) { |
| 2795 | throw new IllegalArgumentException("intents are length different than resolvedTypes"); |
| 2796 | } |
| 2797 | |
| 2798 | ActivityRecord[] outActivity = new ActivityRecord[1]; |
| 2799 | |
| 2800 | int callingPid; |
| 2801 | if (callingUid >= 0) { |
| 2802 | callingPid = -1; |
| 2803 | } else if (caller == null) { |
| 2804 | callingPid = Binder.getCallingPid(); |
| 2805 | callingUid = Binder.getCallingUid(); |
| 2806 | } else { |
| 2807 | callingPid = callingUid = -1; |
| 2808 | } |
| 2809 | final long origId = Binder.clearCallingIdentity(); |
| 2810 | try { |
| 2811 | synchronized (mService) { |
| 2812 | |
| 2813 | for (int i=0; i<intents.length; i++) { |
| 2814 | Intent intent = intents[i]; |
| 2815 | if (intent == null) { |
| 2816 | continue; |
| 2817 | } |
| 2818 | |
| 2819 | // Refuse possible leaked file descriptors |
| 2820 | if (intent != null && intent.hasFileDescriptors()) { |
| 2821 | throw new IllegalArgumentException("File descriptors passed in Intent"); |
| 2822 | } |
| 2823 | |
| 2824 | boolean componentSpecified = intent.getComponent() != null; |
| 2825 | |
| 2826 | // Don't modify the client's object! |
| 2827 | intent = new Intent(intent); |
| 2828 | |
| 2829 | // Collect information about the target of the Intent. |
| 2830 | ActivityInfo aInfo = resolveActivity(intent, resolvedTypes[i], false); |
| 2831 | |
| 2832 | if (mMainStack && aInfo != null && (aInfo.applicationInfo.flags |
| 2833 | & ApplicationInfo.FLAG_CANT_SAVE_STATE) != 0) { |
| 2834 | throw new IllegalArgumentException( |
| 2835 | "FLAG_CANT_SAVE_STATE not supported here"); |
| 2836 | } |
| 2837 | |
| 2838 | int res = startActivityLocked(caller, intent, resolvedTypes[i], |
| 2839 | null, 0, aInfo, resultTo, null, -1, callingPid, callingUid, |
| 2840 | false, componentSpecified, outActivity); |
| 2841 | if (res < 0) { |
| 2842 | return res; |
| 2843 | } |
| 2844 | |
| 2845 | resultTo = outActivity[0]; |
| 2846 | } |
| 2847 | } |
| 2848 | } finally { |
| 2849 | Binder.restoreCallingIdentity(origId); |
| 2850 | } |
| 2851 | |
| 2852 | return IActivityManager.START_SUCCESS; |
| 2853 | } |
| 2854 | |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 2855 | void reportActivityLaunchedLocked(boolean timeout, ActivityRecord r, |
| 2856 | long thisTime, long totalTime) { |
| 2857 | for (int i=mWaitingActivityLaunched.size()-1; i>=0; i--) { |
| 2858 | WaitResult w = mWaitingActivityLaunched.get(i); |
| 2859 | w.timeout = timeout; |
| 2860 | if (r != null) { |
| 2861 | w.who = new ComponentName(r.info.packageName, r.info.name); |
| 2862 | } |
| 2863 | w.thisTime = thisTime; |
| 2864 | w.totalTime = totalTime; |
| 2865 | } |
| 2866 | mService.notifyAll(); |
| 2867 | } |
| 2868 | |
| 2869 | void reportActivityVisibleLocked(ActivityRecord r) { |
| 2870 | for (int i=mWaitingActivityVisible.size()-1; i>=0; i--) { |
| 2871 | WaitResult w = mWaitingActivityVisible.get(i); |
| 2872 | w.timeout = false; |
| 2873 | if (r != null) { |
| 2874 | w.who = new ComponentName(r.info.packageName, r.info.name); |
| 2875 | } |
| 2876 | w.totalTime = SystemClock.uptimeMillis() - w.thisTime; |
| 2877 | w.thisTime = w.totalTime; |
| 2878 | } |
| 2879 | mService.notifyAll(); |
| 2880 | } |
| 2881 | |
| 2882 | void sendActivityResultLocked(int callingUid, ActivityRecord r, |
| 2883 | String resultWho, int requestCode, int resultCode, Intent data) { |
| 2884 | |
| 2885 | if (callingUid > 0) { |
| 2886 | mService.grantUriPermissionFromIntentLocked(callingUid, r.packageName, |
Dianne Hackborn | 7e26964 | 2010-08-25 19:50:20 -0700 | [diff] [blame] | 2887 | data, r.getUriPermissionsLocked()); |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 2888 | } |
| 2889 | |
| 2890 | if (DEBUG_RESULTS) Slog.v(TAG, "Send activity result to " + r |
| 2891 | + " : who=" + resultWho + " req=" + requestCode |
| 2892 | + " res=" + resultCode + " data=" + data); |
| 2893 | if (mResumedActivity == r && r.app != null && r.app.thread != null) { |
| 2894 | try { |
| 2895 | ArrayList<ResultInfo> list = new ArrayList<ResultInfo>(); |
| 2896 | list.add(new ResultInfo(resultWho, requestCode, |
| 2897 | resultCode, data)); |
| 2898 | r.app.thread.scheduleSendResult(r, list); |
| 2899 | return; |
| 2900 | } catch (Exception e) { |
| 2901 | Slog.w(TAG, "Exception thrown sending result to " + r, e); |
| 2902 | } |
| 2903 | } |
| 2904 | |
| 2905 | r.addResultLocked(null, resultWho, requestCode, resultCode, data); |
| 2906 | } |
| 2907 | |
| 2908 | private final void stopActivityLocked(ActivityRecord r) { |
| 2909 | if (DEBUG_SWITCH) Slog.d(TAG, "Stopping: " + r); |
| 2910 | if ((r.intent.getFlags()&Intent.FLAG_ACTIVITY_NO_HISTORY) != 0 |
| 2911 | || (r.info.flags&ActivityInfo.FLAG_NO_HISTORY) != 0) { |
| 2912 | if (!r.finishing) { |
| 2913 | requestFinishActivityLocked(r, Activity.RESULT_CANCELED, null, |
| 2914 | "no-history"); |
| 2915 | } |
| 2916 | } else if (r.app != null && r.app.thread != null) { |
| 2917 | if (mMainStack) { |
| 2918 | if (mService.mFocusedActivity == r) { |
| 2919 | mService.setFocusedActivityLocked(topRunningActivityLocked(null)); |
| 2920 | } |
| 2921 | } |
| 2922 | r.resumeKeyDispatchingLocked(); |
| 2923 | try { |
| 2924 | r.stopped = false; |
| 2925 | r.state = ActivityState.STOPPING; |
| 2926 | if (DEBUG_VISBILITY) Slog.v( |
| 2927 | TAG, "Stopping visible=" + r.visible + " for " + r); |
| 2928 | if (!r.visible) { |
| 2929 | mService.mWindowManager.setAppVisibility(r, false); |
| 2930 | } |
| 2931 | r.app.thread.scheduleStopActivity(r, r.visible, r.configChangeFlags); |
Dianne Hackborn | 4eba96b | 2011-01-21 13:34:36 -0800 | [diff] [blame^] | 2932 | if (mService.isSleeping()) { |
| 2933 | r.setSleeping(true); |
| 2934 | } |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 2935 | } catch (Exception e) { |
| 2936 | // Maybe just ignore exceptions here... if the process |
| 2937 | // has crashed, our death notification will clean things |
| 2938 | // up. |
| 2939 | Slog.w(TAG, "Exception thrown during pause", e); |
| 2940 | // Just in case, assume it to be stopped. |
| 2941 | r.stopped = true; |
| 2942 | r.state = ActivityState.STOPPED; |
| 2943 | if (r.configDestroy) { |
| 2944 | destroyActivityLocked(r, true); |
| 2945 | } |
| 2946 | } |
| 2947 | } |
| 2948 | } |
| 2949 | |
| 2950 | final ArrayList<ActivityRecord> processStoppingActivitiesLocked( |
| 2951 | boolean remove) { |
| 2952 | int N = mStoppingActivities.size(); |
| 2953 | if (N <= 0) return null; |
| 2954 | |
| 2955 | ArrayList<ActivityRecord> stops = null; |
| 2956 | |
| 2957 | final boolean nowVisible = mResumedActivity != null |
| 2958 | && mResumedActivity.nowVisible |
| 2959 | && !mResumedActivity.waitingVisible; |
| 2960 | for (int i=0; i<N; i++) { |
| 2961 | ActivityRecord s = mStoppingActivities.get(i); |
| 2962 | if (localLOGV) Slog.v(TAG, "Stopping " + s + ": nowVisible=" |
| 2963 | + nowVisible + " waitingVisible=" + s.waitingVisible |
| 2964 | + " finishing=" + s.finishing); |
| 2965 | if (s.waitingVisible && nowVisible) { |
| 2966 | mWaitingVisibleActivities.remove(s); |
| 2967 | s.waitingVisible = false; |
| 2968 | if (s.finishing) { |
| 2969 | // If this activity is finishing, it is sitting on top of |
| 2970 | // everyone else but we now know it is no longer needed... |
| 2971 | // so get rid of it. Otherwise, we need to go through the |
| 2972 | // normal flow and hide it once we determine that it is |
| 2973 | // hidden by the activities in front of it. |
| 2974 | if (localLOGV) Slog.v(TAG, "Before stopping, can hide: " + s); |
| 2975 | mService.mWindowManager.setAppVisibility(s, false); |
| 2976 | } |
| 2977 | } |
Dianne Hackborn | 4eba96b | 2011-01-21 13:34:36 -0800 | [diff] [blame^] | 2978 | if ((!s.waitingVisible || mService.isSleeping()) && remove) { |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 2979 | if (localLOGV) Slog.v(TAG, "Ready to stop: " + s); |
| 2980 | if (stops == null) { |
| 2981 | stops = new ArrayList<ActivityRecord>(); |
| 2982 | } |
| 2983 | stops.add(s); |
| 2984 | mStoppingActivities.remove(i); |
| 2985 | N--; |
| 2986 | i--; |
| 2987 | } |
| 2988 | } |
| 2989 | |
| 2990 | return stops; |
| 2991 | } |
| 2992 | |
| 2993 | final void activityIdleInternal(IBinder token, boolean fromTimeout, |
| 2994 | Configuration config) { |
| 2995 | if (localLOGV) Slog.v(TAG, "Activity idle: " + token); |
| 2996 | |
| 2997 | ArrayList<ActivityRecord> stops = null; |
| 2998 | ArrayList<ActivityRecord> finishes = null; |
| 2999 | ArrayList<ActivityRecord> thumbnails = null; |
| 3000 | int NS = 0; |
| 3001 | int NF = 0; |
| 3002 | int NT = 0; |
| 3003 | IApplicationThread sendThumbnail = null; |
| 3004 | boolean booting = false; |
| 3005 | boolean enableScreen = false; |
| 3006 | |
| 3007 | synchronized (mService) { |
| 3008 | if (token != null) { |
| 3009 | mHandler.removeMessages(IDLE_TIMEOUT_MSG, token); |
| 3010 | } |
| 3011 | |
| 3012 | // Get the activity record. |
| 3013 | int index = indexOfTokenLocked(token); |
| 3014 | if (index >= 0) { |
| 3015 | ActivityRecord r = (ActivityRecord)mHistory.get(index); |
| 3016 | |
| 3017 | if (fromTimeout) { |
| 3018 | reportActivityLaunchedLocked(fromTimeout, r, -1, -1); |
| 3019 | } |
| 3020 | |
| 3021 | // This is a hack to semi-deal with a race condition |
| 3022 | // in the client where it can be constructed with a |
| 3023 | // newer configuration from when we asked it to launch. |
| 3024 | // We'll update with whatever configuration it now says |
| 3025 | // it used to launch. |
| 3026 | if (config != null) { |
| 3027 | r.configuration = config; |
| 3028 | } |
| 3029 | |
| 3030 | // No longer need to keep the device awake. |
| 3031 | if (mResumedActivity == r && mLaunchingActivity.isHeld()) { |
| 3032 | mHandler.removeMessages(LAUNCH_TIMEOUT_MSG); |
| 3033 | mLaunchingActivity.release(); |
| 3034 | } |
| 3035 | |
| 3036 | // We are now idle. If someone is waiting for a thumbnail from |
| 3037 | // us, we can now deliver. |
| 3038 | r.idle = true; |
| 3039 | mService.scheduleAppGcsLocked(); |
| 3040 | if (r.thumbnailNeeded && r.app != null && r.app.thread != null) { |
| 3041 | sendThumbnail = r.app.thread; |
| 3042 | r.thumbnailNeeded = false; |
| 3043 | } |
| 3044 | |
| 3045 | // If this activity is fullscreen, set up to hide those under it. |
| 3046 | |
| 3047 | if (DEBUG_VISBILITY) Slog.v(TAG, "Idle activity for " + r); |
| 3048 | ensureActivitiesVisibleLocked(null, 0); |
| 3049 | |
| 3050 | //Slog.i(TAG, "IDLE: mBooted=" + mBooted + ", fromTimeout=" + fromTimeout); |
| 3051 | if (mMainStack) { |
| 3052 | if (!mService.mBooted && !fromTimeout) { |
| 3053 | mService.mBooted = true; |
| 3054 | enableScreen = true; |
| 3055 | } |
| 3056 | } |
| 3057 | |
| 3058 | } else if (fromTimeout) { |
| 3059 | reportActivityLaunchedLocked(fromTimeout, null, -1, -1); |
| 3060 | } |
| 3061 | |
| 3062 | // Atomically retrieve all of the other things to do. |
| 3063 | stops = processStoppingActivitiesLocked(true); |
| 3064 | NS = stops != null ? stops.size() : 0; |
| 3065 | if ((NF=mFinishingActivities.size()) > 0) { |
| 3066 | finishes = new ArrayList<ActivityRecord>(mFinishingActivities); |
| 3067 | mFinishingActivities.clear(); |
| 3068 | } |
| 3069 | if ((NT=mService.mCancelledThumbnails.size()) > 0) { |
| 3070 | thumbnails = new ArrayList<ActivityRecord>(mService.mCancelledThumbnails); |
| 3071 | mService.mCancelledThumbnails.clear(); |
| 3072 | } |
| 3073 | |
| 3074 | if (mMainStack) { |
| 3075 | booting = mService.mBooting; |
| 3076 | mService.mBooting = false; |
| 3077 | } |
| 3078 | } |
| 3079 | |
| 3080 | int i; |
| 3081 | |
| 3082 | // Send thumbnail if requested. |
| 3083 | if (sendThumbnail != null) { |
| 3084 | try { |
| 3085 | sendThumbnail.requestThumbnail(token); |
| 3086 | } catch (Exception e) { |
| 3087 | Slog.w(TAG, "Exception thrown when requesting thumbnail", e); |
| 3088 | mService.sendPendingThumbnail(null, token, null, null, true); |
| 3089 | } |
| 3090 | } |
| 3091 | |
| 3092 | // Stop any activities that are scheduled to do so but have been |
| 3093 | // waiting for the next one to start. |
| 3094 | for (i=0; i<NS; i++) { |
| 3095 | ActivityRecord r = (ActivityRecord)stops.get(i); |
| 3096 | synchronized (mService) { |
| 3097 | if (r.finishing) { |
| 3098 | finishCurrentActivityLocked(r, FINISH_IMMEDIATELY); |
| 3099 | } else { |
| 3100 | stopActivityLocked(r); |
| 3101 | } |
| 3102 | } |
| 3103 | } |
| 3104 | |
| 3105 | // Finish any activities that are scheduled to do so but have been |
| 3106 | // waiting for the next one to start. |
| 3107 | for (i=0; i<NF; i++) { |
| 3108 | ActivityRecord r = (ActivityRecord)finishes.get(i); |
| 3109 | synchronized (mService) { |
| 3110 | destroyActivityLocked(r, true); |
| 3111 | } |
| 3112 | } |
| 3113 | |
| 3114 | // Report back to any thumbnail receivers. |
| 3115 | for (i=0; i<NT; i++) { |
| 3116 | ActivityRecord r = (ActivityRecord)thumbnails.get(i); |
| 3117 | mService.sendPendingThumbnail(r, null, null, null, true); |
| 3118 | } |
| 3119 | |
| 3120 | if (booting) { |
| 3121 | mService.finishBooting(); |
| 3122 | } |
| 3123 | |
| 3124 | mService.trimApplications(); |
| 3125 | //dump(); |
| 3126 | //mWindowManager.dump(); |
| 3127 | |
| 3128 | if (enableScreen) { |
| 3129 | mService.enableScreenAfterBoot(); |
| 3130 | } |
| 3131 | } |
| 3132 | |
| 3133 | /** |
| 3134 | * @return Returns true if the activity is being finished, false if for |
| 3135 | * some reason it is being left as-is. |
| 3136 | */ |
| 3137 | final boolean requestFinishActivityLocked(IBinder token, int resultCode, |
| 3138 | Intent resultData, String reason) { |
| 3139 | if (DEBUG_RESULTS) Slog.v( |
| 3140 | TAG, "Finishing activity: token=" + token |
| 3141 | + ", result=" + resultCode + ", data=" + resultData); |
| 3142 | |
| 3143 | int index = indexOfTokenLocked(token); |
| 3144 | if (index < 0) { |
| 3145 | return false; |
| 3146 | } |
| 3147 | ActivityRecord r = (ActivityRecord)mHistory.get(index); |
| 3148 | |
| 3149 | // Is this the last activity left? |
| 3150 | boolean lastActivity = true; |
| 3151 | for (int i=mHistory.size()-1; i>=0; i--) { |
| 3152 | ActivityRecord p = (ActivityRecord)mHistory.get(i); |
| 3153 | if (!p.finishing && p != r) { |
| 3154 | lastActivity = false; |
| 3155 | break; |
| 3156 | } |
| 3157 | } |
| 3158 | |
| 3159 | // If this is the last activity, but it is the home activity, then |
| 3160 | // just don't finish it. |
| 3161 | if (lastActivity) { |
| 3162 | if (r.intent.hasCategory(Intent.CATEGORY_HOME)) { |
| 3163 | return false; |
| 3164 | } |
| 3165 | } |
| 3166 | |
| 3167 | finishActivityLocked(r, index, resultCode, resultData, reason); |
| 3168 | return true; |
| 3169 | } |
| 3170 | |
| 3171 | /** |
| 3172 | * @return Returns true if this activity has been removed from the history |
| 3173 | * list, or false if it is still in the list and will be removed later. |
| 3174 | */ |
| 3175 | final boolean finishActivityLocked(ActivityRecord r, int index, |
| 3176 | int resultCode, Intent resultData, String reason) { |
| 3177 | if (r.finishing) { |
| 3178 | Slog.w(TAG, "Duplicate finish request for " + r); |
| 3179 | return false; |
| 3180 | } |
| 3181 | |
Dianne Hackborn | 94cb2eb | 2011-01-13 21:09:44 -0800 | [diff] [blame] | 3182 | r.makeFinishing(); |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 3183 | EventLog.writeEvent(EventLogTags.AM_FINISH_ACTIVITY, |
| 3184 | System.identityHashCode(r), |
| 3185 | r.task.taskId, r.shortComponentName, reason); |
| 3186 | r.task.numActivities--; |
| 3187 | if (index < (mHistory.size()-1)) { |
| 3188 | ActivityRecord next = (ActivityRecord)mHistory.get(index+1); |
| 3189 | if (next.task == r.task) { |
| 3190 | if (r.frontOfTask) { |
| 3191 | // The next activity is now the front of the task. |
| 3192 | next.frontOfTask = true; |
| 3193 | } |
| 3194 | if ((r.intent.getFlags()&Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET) != 0) { |
| 3195 | // If the caller asked that this activity (and all above it) |
| 3196 | // be cleared when the task is reset, don't lose that information, |
| 3197 | // but propagate it up to the next activity. |
| 3198 | next.intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET); |
| 3199 | } |
| 3200 | } |
| 3201 | } |
| 3202 | |
| 3203 | r.pauseKeyDispatchingLocked(); |
| 3204 | if (mMainStack) { |
| 3205 | if (mService.mFocusedActivity == r) { |
| 3206 | mService.setFocusedActivityLocked(topRunningActivityLocked(null)); |
| 3207 | } |
| 3208 | } |
| 3209 | |
| 3210 | // send the result |
| 3211 | ActivityRecord resultTo = r.resultTo; |
| 3212 | if (resultTo != null) { |
| 3213 | if (DEBUG_RESULTS) Slog.v(TAG, "Adding result to " + resultTo |
| 3214 | + " who=" + r.resultWho + " req=" + r.requestCode |
| 3215 | + " res=" + resultCode + " data=" + resultData); |
| 3216 | if (r.info.applicationInfo.uid > 0) { |
| 3217 | mService.grantUriPermissionFromIntentLocked(r.info.applicationInfo.uid, |
Dianne Hackborn | a1c69e0 | 2010-09-01 22:55:02 -0700 | [diff] [blame] | 3218 | resultTo.packageName, resultData, |
| 3219 | resultTo.getUriPermissionsLocked()); |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 3220 | } |
| 3221 | resultTo.addResultLocked(r, r.resultWho, r.requestCode, resultCode, |
| 3222 | resultData); |
| 3223 | r.resultTo = null; |
| 3224 | } |
| 3225 | else if (DEBUG_RESULTS) Slog.v(TAG, "No result destination from " + r); |
| 3226 | |
| 3227 | // Make sure this HistoryRecord is not holding on to other resources, |
| 3228 | // because clients have remote IPC references to this object so we |
| 3229 | // can't assume that will go away and want to avoid circular IPC refs. |
| 3230 | r.results = null; |
| 3231 | r.pendingResults = null; |
| 3232 | r.newIntents = null; |
| 3233 | r.icicle = null; |
| 3234 | |
| 3235 | if (mService.mPendingThumbnails.size() > 0) { |
| 3236 | // There are clients waiting to receive thumbnails so, in case |
| 3237 | // this is an activity that someone is waiting for, add it |
| 3238 | // to the pending list so we can correctly update the clients. |
| 3239 | mService.mCancelledThumbnails.add(r); |
| 3240 | } |
| 3241 | |
| 3242 | if (mResumedActivity == r) { |
| 3243 | boolean endTask = index <= 0 |
| 3244 | || ((ActivityRecord)mHistory.get(index-1)).task != r.task; |
| 3245 | if (DEBUG_TRANSITION) Slog.v(TAG, |
| 3246 | "Prepare close transition: finishing " + r); |
| 3247 | mService.mWindowManager.prepareAppTransition(endTask |
| 3248 | ? WindowManagerPolicy.TRANSIT_TASK_CLOSE |
Dianne Hackborn | 7da6ac3 | 2010-12-09 19:22:04 -0800 | [diff] [blame] | 3249 | : WindowManagerPolicy.TRANSIT_ACTIVITY_CLOSE, false); |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 3250 | |
| 3251 | // Tell window manager to prepare for this one to be removed. |
| 3252 | mService.mWindowManager.setAppVisibility(r, false); |
| 3253 | |
| 3254 | if (mPausingActivity == null) { |
| 3255 | if (DEBUG_PAUSE) Slog.v(TAG, "Finish needs to pause: " + r); |
| 3256 | if (DEBUG_USER_LEAVING) Slog.v(TAG, "finish() => pause with userLeaving=false"); |
| 3257 | startPausingLocked(false, false); |
| 3258 | } |
| 3259 | |
| 3260 | } else if (r.state != ActivityState.PAUSING) { |
| 3261 | // If the activity is PAUSING, we will complete the finish once |
| 3262 | // it is done pausing; else we can just directly finish it here. |
| 3263 | if (DEBUG_PAUSE) Slog.v(TAG, "Finish not pausing: " + r); |
| 3264 | return finishCurrentActivityLocked(r, index, |
| 3265 | FINISH_AFTER_PAUSE) == null; |
| 3266 | } else { |
| 3267 | if (DEBUG_PAUSE) Slog.v(TAG, "Finish waiting for pause of: " + r); |
| 3268 | } |
| 3269 | |
| 3270 | return false; |
| 3271 | } |
| 3272 | |
| 3273 | private static final int FINISH_IMMEDIATELY = 0; |
| 3274 | private static final int FINISH_AFTER_PAUSE = 1; |
| 3275 | private static final int FINISH_AFTER_VISIBLE = 2; |
| 3276 | |
| 3277 | private final ActivityRecord finishCurrentActivityLocked(ActivityRecord r, |
| 3278 | int mode) { |
| 3279 | final int index = indexOfTokenLocked(r); |
| 3280 | if (index < 0) { |
| 3281 | return null; |
| 3282 | } |
| 3283 | |
| 3284 | return finishCurrentActivityLocked(r, index, mode); |
| 3285 | } |
| 3286 | |
| 3287 | private final ActivityRecord finishCurrentActivityLocked(ActivityRecord r, |
| 3288 | int index, int mode) { |
| 3289 | // First things first: if this activity is currently visible, |
| 3290 | // and the resumed activity is not yet visible, then hold off on |
| 3291 | // finishing until the resumed one becomes visible. |
| 3292 | if (mode == FINISH_AFTER_VISIBLE && r.nowVisible) { |
| 3293 | if (!mStoppingActivities.contains(r)) { |
| 3294 | mStoppingActivities.add(r); |
| 3295 | if (mStoppingActivities.size() > 3) { |
| 3296 | // If we already have a few activities waiting to stop, |
| 3297 | // then give up on things going idle and start clearing |
| 3298 | // them out. |
| 3299 | Message msg = Message.obtain(); |
| 3300 | msg.what = IDLE_NOW_MSG; |
| 3301 | mHandler.sendMessage(msg); |
Dianne Hackborn | 4eba96b | 2011-01-21 13:34:36 -0800 | [diff] [blame^] | 3302 | } else { |
| 3303 | checkReadyForSleepLocked(); |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 3304 | } |
| 3305 | } |
| 3306 | r.state = ActivityState.STOPPING; |
| 3307 | mService.updateOomAdjLocked(); |
| 3308 | return r; |
| 3309 | } |
| 3310 | |
| 3311 | // make sure the record is cleaned out of other places. |
| 3312 | mStoppingActivities.remove(r); |
Dianne Hackborn | 4eba96b | 2011-01-21 13:34:36 -0800 | [diff] [blame^] | 3313 | mGoingToSleepActivities.remove(r); |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 3314 | mWaitingVisibleActivities.remove(r); |
| 3315 | if (mResumedActivity == r) { |
| 3316 | mResumedActivity = null; |
| 3317 | } |
| 3318 | final ActivityState prevState = r.state; |
| 3319 | r.state = ActivityState.FINISHING; |
| 3320 | |
| 3321 | if (mode == FINISH_IMMEDIATELY |
| 3322 | || prevState == ActivityState.STOPPED |
| 3323 | || prevState == ActivityState.INITIALIZING) { |
| 3324 | // If this activity is already stopped, we can just finish |
| 3325 | // it right now. |
| 3326 | return destroyActivityLocked(r, true) ? null : r; |
| 3327 | } else { |
| 3328 | // Need to go through the full pause cycle to get this |
| 3329 | // activity into the stopped state and then finish it. |
| 3330 | if (localLOGV) Slog.v(TAG, "Enqueueing pending finish: " + r); |
| 3331 | mFinishingActivities.add(r); |
| 3332 | resumeTopActivityLocked(null); |
| 3333 | } |
| 3334 | return r; |
| 3335 | } |
| 3336 | |
| 3337 | /** |
| 3338 | * Perform the common clean-up of an activity record. This is called both |
| 3339 | * as part of destroyActivityLocked() (when destroying the client-side |
| 3340 | * representation) and cleaning things up as a result of its hosting |
| 3341 | * processing going away, in which case there is no remaining client-side |
| 3342 | * state to destroy so only the cleanup here is needed. |
| 3343 | */ |
| 3344 | final void cleanUpActivityLocked(ActivityRecord r, boolean cleanServices) { |
| 3345 | if (mResumedActivity == r) { |
| 3346 | mResumedActivity = null; |
| 3347 | } |
| 3348 | if (mService.mFocusedActivity == r) { |
| 3349 | mService.mFocusedActivity = null; |
| 3350 | } |
| 3351 | |
| 3352 | r.configDestroy = false; |
| 3353 | r.frozenBeforeDestroy = false; |
| 3354 | |
| 3355 | // Make sure this record is no longer in the pending finishes list. |
| 3356 | // This could happen, for example, if we are trimming activities |
| 3357 | // down to the max limit while they are still waiting to finish. |
| 3358 | mFinishingActivities.remove(r); |
| 3359 | mWaitingVisibleActivities.remove(r); |
| 3360 | |
| 3361 | // Remove any pending results. |
| 3362 | if (r.finishing && r.pendingResults != null) { |
| 3363 | for (WeakReference<PendingIntentRecord> apr : r.pendingResults) { |
| 3364 | PendingIntentRecord rec = apr.get(); |
| 3365 | if (rec != null) { |
| 3366 | mService.cancelIntentSenderLocked(rec, false); |
| 3367 | } |
| 3368 | } |
| 3369 | r.pendingResults = null; |
| 3370 | } |
| 3371 | |
| 3372 | if (cleanServices) { |
| 3373 | cleanUpActivityServicesLocked(r); |
| 3374 | } |
| 3375 | |
| 3376 | if (mService.mPendingThumbnails.size() > 0) { |
| 3377 | // There are clients waiting to receive thumbnails so, in case |
| 3378 | // this is an activity that someone is waiting for, add it |
| 3379 | // to the pending list so we can correctly update the clients. |
| 3380 | mService.mCancelledThumbnails.add(r); |
| 3381 | } |
| 3382 | |
| 3383 | // Get rid of any pending idle timeouts. |
| 3384 | mHandler.removeMessages(PAUSE_TIMEOUT_MSG, r); |
| 3385 | mHandler.removeMessages(IDLE_TIMEOUT_MSG, r); |
| 3386 | } |
| 3387 | |
| 3388 | private final void removeActivityFromHistoryLocked(ActivityRecord r) { |
| 3389 | if (r.state != ActivityState.DESTROYED) { |
Dianne Hackborn | 94cb2eb | 2011-01-13 21:09:44 -0800 | [diff] [blame] | 3390 | r.makeFinishing(); |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 3391 | mHistory.remove(r); |
| 3392 | r.inHistory = false; |
| 3393 | r.state = ActivityState.DESTROYED; |
| 3394 | mService.mWindowManager.removeAppToken(r); |
| 3395 | if (VALIDATE_TOKENS) { |
| 3396 | mService.mWindowManager.validateAppTokens(mHistory); |
| 3397 | } |
| 3398 | cleanUpActivityServicesLocked(r); |
| 3399 | r.removeUriPermissionsLocked(); |
| 3400 | } |
| 3401 | } |
| 3402 | |
| 3403 | /** |
| 3404 | * Perform clean-up of service connections in an activity record. |
| 3405 | */ |
| 3406 | final void cleanUpActivityServicesLocked(ActivityRecord r) { |
| 3407 | // Throw away any services that have been bound by this activity. |
| 3408 | if (r.connections != null) { |
| 3409 | Iterator<ConnectionRecord> it = r.connections.iterator(); |
| 3410 | while (it.hasNext()) { |
| 3411 | ConnectionRecord c = it.next(); |
| 3412 | mService.removeConnectionLocked(c, null, r); |
| 3413 | } |
| 3414 | r.connections = null; |
| 3415 | } |
| 3416 | } |
| 3417 | |
| 3418 | /** |
| 3419 | * Destroy the current CLIENT SIDE instance of an activity. This may be |
| 3420 | * called both when actually finishing an activity, or when performing |
| 3421 | * a configuration switch where we destroy the current client-side object |
| 3422 | * but then create a new client-side object for this same HistoryRecord. |
| 3423 | */ |
| 3424 | final boolean destroyActivityLocked(ActivityRecord r, |
| 3425 | boolean removeFromApp) { |
| 3426 | if (DEBUG_SWITCH) Slog.v( |
| 3427 | TAG, "Removing activity: token=" + r |
| 3428 | + ", app=" + (r.app != null ? r.app.processName : "(null)")); |
| 3429 | EventLog.writeEvent(EventLogTags.AM_DESTROY_ACTIVITY, |
| 3430 | System.identityHashCode(r), |
| 3431 | r.task.taskId, r.shortComponentName); |
| 3432 | |
| 3433 | boolean removedFromHistory = false; |
| 3434 | |
| 3435 | cleanUpActivityLocked(r, false); |
| 3436 | |
| 3437 | final boolean hadApp = r.app != null; |
| 3438 | |
| 3439 | if (hadApp) { |
| 3440 | if (removeFromApp) { |
| 3441 | int idx = r.app.activities.indexOf(r); |
| 3442 | if (idx >= 0) { |
| 3443 | r.app.activities.remove(idx); |
| 3444 | } |
| 3445 | if (mService.mHeavyWeightProcess == r.app && r.app.activities.size() <= 0) { |
| 3446 | mService.mHeavyWeightProcess = null; |
| 3447 | mService.mHandler.sendEmptyMessage( |
| 3448 | ActivityManagerService.CANCEL_HEAVY_NOTIFICATION_MSG); |
| 3449 | } |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 3450 | if (r.app.activities.size() == 0) { |
| 3451 | // No longer have activities, so update location in |
| 3452 | // LRU list. |
| 3453 | mService.updateLruProcessLocked(r.app, true, false); |
| 3454 | } |
| 3455 | } |
| 3456 | |
| 3457 | boolean skipDestroy = false; |
| 3458 | |
| 3459 | try { |
| 3460 | if (DEBUG_SWITCH) Slog.i(TAG, "Destroying: " + r); |
| 3461 | r.app.thread.scheduleDestroyActivity(r, r.finishing, |
| 3462 | r.configChangeFlags); |
| 3463 | } catch (Exception e) { |
| 3464 | // We can just ignore exceptions here... if the process |
| 3465 | // has crashed, our death notification will clean things |
| 3466 | // up. |
| 3467 | //Slog.w(TAG, "Exception thrown during finish", e); |
| 3468 | if (r.finishing) { |
| 3469 | removeActivityFromHistoryLocked(r); |
| 3470 | removedFromHistory = true; |
| 3471 | skipDestroy = true; |
| 3472 | } |
| 3473 | } |
| 3474 | |
| 3475 | r.app = null; |
| 3476 | r.nowVisible = false; |
| 3477 | |
| 3478 | if (r.finishing && !skipDestroy) { |
| 3479 | r.state = ActivityState.DESTROYING; |
| 3480 | Message msg = mHandler.obtainMessage(DESTROY_TIMEOUT_MSG); |
| 3481 | msg.obj = r; |
| 3482 | mHandler.sendMessageDelayed(msg, DESTROY_TIMEOUT); |
| 3483 | } else { |
| 3484 | r.state = ActivityState.DESTROYED; |
| 3485 | } |
| 3486 | } else { |
| 3487 | // remove this record from the history. |
| 3488 | if (r.finishing) { |
| 3489 | removeActivityFromHistoryLocked(r); |
| 3490 | removedFromHistory = true; |
| 3491 | } else { |
| 3492 | r.state = ActivityState.DESTROYED; |
| 3493 | } |
| 3494 | } |
| 3495 | |
| 3496 | r.configChangeFlags = 0; |
| 3497 | |
| 3498 | if (!mLRUActivities.remove(r) && hadApp) { |
| 3499 | Slog.w(TAG, "Activity " + r + " being finished, but not in LRU list"); |
| 3500 | } |
| 3501 | |
| 3502 | return removedFromHistory; |
| 3503 | } |
| 3504 | |
| 3505 | final void activityDestroyed(IBinder token) { |
| 3506 | synchronized (mService) { |
| 3507 | mHandler.removeMessages(DESTROY_TIMEOUT_MSG, token); |
| 3508 | |
| 3509 | int index = indexOfTokenLocked(token); |
| 3510 | if (index >= 0) { |
| 3511 | ActivityRecord r = (ActivityRecord)mHistory.get(index); |
| 3512 | if (r.state == ActivityState.DESTROYING) { |
| 3513 | final long origId = Binder.clearCallingIdentity(); |
| 3514 | removeActivityFromHistoryLocked(r); |
| 3515 | Binder.restoreCallingIdentity(origId); |
| 3516 | } |
| 3517 | } |
| 3518 | } |
| 3519 | } |
| 3520 | |
| 3521 | private static void removeHistoryRecordsForAppLocked(ArrayList list, ProcessRecord app) { |
| 3522 | int i = list.size(); |
| 3523 | if (localLOGV) Slog.v( |
| 3524 | TAG, "Removing app " + app + " from list " + list |
| 3525 | + " with " + i + " entries"); |
| 3526 | while (i > 0) { |
| 3527 | i--; |
| 3528 | ActivityRecord r = (ActivityRecord)list.get(i); |
| 3529 | if (localLOGV) Slog.v( |
| 3530 | TAG, "Record #" + i + " " + r + ": app=" + r.app); |
| 3531 | if (r.app == app) { |
| 3532 | if (localLOGV) Slog.v(TAG, "Removing this entry!"); |
| 3533 | list.remove(i); |
| 3534 | } |
| 3535 | } |
| 3536 | } |
| 3537 | |
| 3538 | void removeHistoryRecordsForAppLocked(ProcessRecord app) { |
| 3539 | removeHistoryRecordsForAppLocked(mLRUActivities, app); |
| 3540 | removeHistoryRecordsForAppLocked(mStoppingActivities, app); |
Dianne Hackborn | 4eba96b | 2011-01-21 13:34:36 -0800 | [diff] [blame^] | 3541 | removeHistoryRecordsForAppLocked(mGoingToSleepActivities, app); |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 3542 | removeHistoryRecordsForAppLocked(mWaitingVisibleActivities, app); |
| 3543 | removeHistoryRecordsForAppLocked(mFinishingActivities, app); |
| 3544 | } |
| 3545 | |
Dianne Hackborn | 621e17d | 2010-11-22 15:59:56 -0800 | [diff] [blame] | 3546 | /** |
| 3547 | * Move the current home activity's task (if one exists) to the front |
| 3548 | * of the stack. |
| 3549 | */ |
| 3550 | final void moveHomeToFrontLocked() { |
| 3551 | TaskRecord homeTask = null; |
| 3552 | for (int i=mHistory.size()-1; i>=0; i--) { |
| 3553 | ActivityRecord hr = (ActivityRecord)mHistory.get(i); |
| 3554 | if (hr.isHomeActivity) { |
| 3555 | homeTask = hr.task; |
Dianne Hackborn | 94cb2eb | 2011-01-13 21:09:44 -0800 | [diff] [blame] | 3556 | break; |
Dianne Hackborn | 621e17d | 2010-11-22 15:59:56 -0800 | [diff] [blame] | 3557 | } |
| 3558 | } |
| 3559 | if (homeTask != null) { |
| 3560 | moveTaskToFrontLocked(homeTask, null); |
| 3561 | } |
| 3562 | } |
| 3563 | |
| 3564 | |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 3565 | final void moveTaskToFrontLocked(TaskRecord tr, ActivityRecord reason) { |
| 3566 | if (DEBUG_SWITCH) Slog.v(TAG, "moveTaskToFront: " + tr); |
| 3567 | |
| 3568 | final int task = tr.taskId; |
| 3569 | int top = mHistory.size()-1; |
| 3570 | |
| 3571 | if (top < 0 || ((ActivityRecord)mHistory.get(top)).task.taskId == task) { |
| 3572 | // nothing to do! |
| 3573 | return; |
| 3574 | } |
| 3575 | |
| 3576 | ArrayList moved = new ArrayList(); |
| 3577 | |
| 3578 | // Applying the affinities may have removed entries from the history, |
| 3579 | // so get the size again. |
| 3580 | top = mHistory.size()-1; |
| 3581 | int pos = top; |
| 3582 | |
| 3583 | // Shift all activities with this task up to the top |
| 3584 | // of the stack, keeping them in the same internal order. |
| 3585 | while (pos >= 0) { |
| 3586 | ActivityRecord r = (ActivityRecord)mHistory.get(pos); |
| 3587 | if (localLOGV) Slog.v( |
| 3588 | TAG, "At " + pos + " ckp " + r.task + ": " + r); |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 3589 | if (r.task.taskId == task) { |
| 3590 | if (localLOGV) Slog.v(TAG, "Removing and adding at " + top); |
| 3591 | mHistory.remove(pos); |
| 3592 | mHistory.add(top, r); |
| 3593 | moved.add(0, r); |
| 3594 | top--; |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 3595 | } |
| 3596 | pos--; |
| 3597 | } |
| 3598 | |
| 3599 | if (DEBUG_TRANSITION) Slog.v(TAG, |
| 3600 | "Prepare to front transition: task=" + tr); |
| 3601 | if (reason != null && |
| 3602 | (reason.intent.getFlags()&Intent.FLAG_ACTIVITY_NO_ANIMATION) != 0) { |
Dianne Hackborn | 7da6ac3 | 2010-12-09 19:22:04 -0800 | [diff] [blame] | 3603 | mService.mWindowManager.prepareAppTransition( |
| 3604 | WindowManagerPolicy.TRANSIT_NONE, false); |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 3605 | ActivityRecord r = topRunningActivityLocked(null); |
| 3606 | if (r != null) { |
| 3607 | mNoAnimActivities.add(r); |
| 3608 | } |
| 3609 | } else { |
Dianne Hackborn | 7da6ac3 | 2010-12-09 19:22:04 -0800 | [diff] [blame] | 3610 | mService.mWindowManager.prepareAppTransition( |
| 3611 | WindowManagerPolicy.TRANSIT_TASK_TO_FRONT, false); |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 3612 | } |
| 3613 | |
| 3614 | mService.mWindowManager.moveAppTokensToTop(moved); |
| 3615 | if (VALIDATE_TOKENS) { |
| 3616 | mService.mWindowManager.validateAppTokens(mHistory); |
| 3617 | } |
| 3618 | |
| 3619 | finishTaskMoveLocked(task); |
| 3620 | EventLog.writeEvent(EventLogTags.AM_TASK_TO_FRONT, task); |
| 3621 | } |
| 3622 | |
| 3623 | private final void finishTaskMoveLocked(int task) { |
| 3624 | resumeTopActivityLocked(null); |
| 3625 | } |
| 3626 | |
| 3627 | /** |
| 3628 | * Worker method for rearranging history stack. Implements the function of moving all |
| 3629 | * activities for a specific task (gathering them if disjoint) into a single group at the |
| 3630 | * bottom of the stack. |
| 3631 | * |
| 3632 | * If a watcher is installed, the action is preflighted and the watcher has an opportunity |
| 3633 | * to premeptively cancel the move. |
| 3634 | * |
| 3635 | * @param task The taskId to collect and move to the bottom. |
| 3636 | * @return Returns true if the move completed, false if not. |
| 3637 | */ |
| 3638 | final boolean moveTaskToBackLocked(int task, ActivityRecord reason) { |
| 3639 | Slog.i(TAG, "moveTaskToBack: " + task); |
| 3640 | |
| 3641 | // If we have a watcher, preflight the move before committing to it. First check |
| 3642 | // for *other* available tasks, but if none are available, then try again allowing the |
| 3643 | // current task to be selected. |
| 3644 | if (mMainStack && mService.mController != null) { |
| 3645 | ActivityRecord next = topRunningActivityLocked(null, task); |
| 3646 | if (next == null) { |
| 3647 | next = topRunningActivityLocked(null, 0); |
| 3648 | } |
| 3649 | if (next != null) { |
| 3650 | // ask watcher if this is allowed |
| 3651 | boolean moveOK = true; |
| 3652 | try { |
| 3653 | moveOK = mService.mController.activityResuming(next.packageName); |
| 3654 | } catch (RemoteException e) { |
| 3655 | mService.mController = null; |
| 3656 | } |
| 3657 | if (!moveOK) { |
| 3658 | return false; |
| 3659 | } |
| 3660 | } |
| 3661 | } |
| 3662 | |
| 3663 | ArrayList moved = new ArrayList(); |
| 3664 | |
| 3665 | if (DEBUG_TRANSITION) Slog.v(TAG, |
| 3666 | "Prepare to back transition: task=" + task); |
| 3667 | |
| 3668 | final int N = mHistory.size(); |
| 3669 | int bottom = 0; |
| 3670 | int pos = 0; |
| 3671 | |
| 3672 | // Shift all activities with this task down to the bottom |
| 3673 | // of the stack, keeping them in the same internal order. |
| 3674 | while (pos < N) { |
| 3675 | ActivityRecord r = (ActivityRecord)mHistory.get(pos); |
| 3676 | if (localLOGV) Slog.v( |
| 3677 | TAG, "At " + pos + " ckp " + r.task + ": " + r); |
| 3678 | if (r.task.taskId == task) { |
| 3679 | if (localLOGV) Slog.v(TAG, "Removing and adding at " + (N-1)); |
| 3680 | mHistory.remove(pos); |
| 3681 | mHistory.add(bottom, r); |
| 3682 | moved.add(r); |
| 3683 | bottom++; |
| 3684 | } |
| 3685 | pos++; |
| 3686 | } |
| 3687 | |
| 3688 | if (reason != null && |
| 3689 | (reason.intent.getFlags()&Intent.FLAG_ACTIVITY_NO_ANIMATION) != 0) { |
Dianne Hackborn | 7da6ac3 | 2010-12-09 19:22:04 -0800 | [diff] [blame] | 3690 | mService.mWindowManager.prepareAppTransition( |
| 3691 | WindowManagerPolicy.TRANSIT_NONE, false); |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 3692 | ActivityRecord r = topRunningActivityLocked(null); |
| 3693 | if (r != null) { |
| 3694 | mNoAnimActivities.add(r); |
| 3695 | } |
| 3696 | } else { |
Dianne Hackborn | 7da6ac3 | 2010-12-09 19:22:04 -0800 | [diff] [blame] | 3697 | mService.mWindowManager.prepareAppTransition( |
| 3698 | WindowManagerPolicy.TRANSIT_TASK_TO_BACK, false); |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 3699 | } |
| 3700 | mService.mWindowManager.moveAppTokensToBottom(moved); |
| 3701 | if (VALIDATE_TOKENS) { |
| 3702 | mService.mWindowManager.validateAppTokens(mHistory); |
| 3703 | } |
| 3704 | |
| 3705 | finishTaskMoveLocked(task); |
| 3706 | return true; |
| 3707 | } |
| 3708 | |
| 3709 | private final void logStartActivity(int tag, ActivityRecord r, |
| 3710 | TaskRecord task) { |
| 3711 | EventLog.writeEvent(tag, |
| 3712 | System.identityHashCode(r), task.taskId, |
| 3713 | r.shortComponentName, r.intent.getAction(), |
| 3714 | r.intent.getType(), r.intent.getDataString(), |
| 3715 | r.intent.getFlags()); |
| 3716 | } |
| 3717 | |
| 3718 | /** |
| 3719 | * Make sure the given activity matches the current configuration. Returns |
| 3720 | * false if the activity had to be destroyed. Returns true if the |
| 3721 | * configuration is the same, or the activity will remain running as-is |
| 3722 | * for whatever reason. Ensures the HistoryRecord is updated with the |
| 3723 | * correct configuration and all other bookkeeping is handled. |
| 3724 | */ |
| 3725 | final boolean ensureActivityConfigurationLocked(ActivityRecord r, |
| 3726 | int globalChanges) { |
| 3727 | if (mConfigWillChange) { |
| 3728 | if (DEBUG_SWITCH || DEBUG_CONFIGURATION) Slog.v(TAG, |
| 3729 | "Skipping config check (will change): " + r); |
| 3730 | return true; |
| 3731 | } |
| 3732 | |
| 3733 | if (DEBUG_SWITCH || DEBUG_CONFIGURATION) Slog.v(TAG, |
| 3734 | "Ensuring correct configuration: " + r); |
| 3735 | |
| 3736 | // Short circuit: if the two configurations are the exact same |
| 3737 | // object (the common case), then there is nothing to do. |
| 3738 | Configuration newConfig = mService.mConfiguration; |
| 3739 | if (r.configuration == newConfig) { |
| 3740 | if (DEBUG_SWITCH || DEBUG_CONFIGURATION) Slog.v(TAG, |
| 3741 | "Configuration unchanged in " + r); |
| 3742 | return true; |
| 3743 | } |
| 3744 | |
| 3745 | // We don't worry about activities that are finishing. |
| 3746 | if (r.finishing) { |
| 3747 | if (DEBUG_SWITCH || DEBUG_CONFIGURATION) Slog.v(TAG, |
| 3748 | "Configuration doesn't matter in finishing " + r); |
| 3749 | r.stopFreezingScreenLocked(false); |
| 3750 | return true; |
| 3751 | } |
| 3752 | |
| 3753 | // Okay we now are going to make this activity have the new config. |
| 3754 | // But then we need to figure out how it needs to deal with that. |
| 3755 | Configuration oldConfig = r.configuration; |
| 3756 | r.configuration = newConfig; |
| 3757 | |
| 3758 | // If the activity isn't currently running, just leave the new |
| 3759 | // configuration and it will pick that up next time it starts. |
| 3760 | if (r.app == null || r.app.thread == null) { |
| 3761 | if (DEBUG_SWITCH || DEBUG_CONFIGURATION) Slog.v(TAG, |
| 3762 | "Configuration doesn't matter not running " + r); |
| 3763 | r.stopFreezingScreenLocked(false); |
| 3764 | return true; |
| 3765 | } |
| 3766 | |
Dianne Hackborn | 3c4c2b7 | 2010-10-05 18:07:54 -0700 | [diff] [blame] | 3767 | // Figure out what has changed between the two configurations. |
| 3768 | int changes = oldConfig.diff(newConfig); |
| 3769 | if (DEBUG_SWITCH || DEBUG_CONFIGURATION) { |
| 3770 | Slog.v(TAG, "Checking to restart " + r.info.name + ": changed=0x" |
| 3771 | + Integer.toHexString(changes) + ", handles=0x" |
| 3772 | + Integer.toHexString(r.info.configChanges) |
| 3773 | + ", newConfig=" + newConfig); |
| 3774 | } |
| 3775 | if ((changes&(~r.info.configChanges)) != 0) { |
| 3776 | // Aha, the activity isn't handling the change, so DIE DIE DIE. |
| 3777 | r.configChangeFlags |= changes; |
| 3778 | r.startFreezingScreenLocked(r.app, globalChanges); |
| 3779 | if (r.app == null || r.app.thread == null) { |
| 3780 | if (DEBUG_SWITCH || DEBUG_CONFIGURATION) Slog.v(TAG, |
| 3781 | "Switch is destroying non-running " + r); |
| 3782 | destroyActivityLocked(r, true); |
| 3783 | } else if (r.state == ActivityState.PAUSING) { |
| 3784 | // A little annoying: we are waiting for this activity to |
| 3785 | // finish pausing. Let's not do anything now, but just |
| 3786 | // flag that it needs to be restarted when done pausing. |
| 3787 | if (DEBUG_SWITCH || DEBUG_CONFIGURATION) Slog.v(TAG, |
| 3788 | "Switch is skipping already pausing " + r); |
| 3789 | r.configDestroy = true; |
| 3790 | return true; |
| 3791 | } else if (r.state == ActivityState.RESUMED) { |
| 3792 | // Try to optimize this case: the configuration is changing |
| 3793 | // and we need to restart the top, resumed activity. |
| 3794 | // Instead of doing the normal handshaking, just say |
| 3795 | // "restart!". |
| 3796 | if (DEBUG_SWITCH || DEBUG_CONFIGURATION) Slog.v(TAG, |
| 3797 | "Switch is restarting resumed " + r); |
| 3798 | relaunchActivityLocked(r, r.configChangeFlags, true); |
| 3799 | r.configChangeFlags = 0; |
| 3800 | } else { |
| 3801 | if (DEBUG_SWITCH || DEBUG_CONFIGURATION) Slog.v(TAG, |
| 3802 | "Switch is restarting non-resumed " + r); |
| 3803 | relaunchActivityLocked(r, r.configChangeFlags, false); |
| 3804 | r.configChangeFlags = 0; |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 3805 | } |
Dianne Hackborn | 3c4c2b7 | 2010-10-05 18:07:54 -0700 | [diff] [blame] | 3806 | |
| 3807 | // All done... tell the caller we weren't able to keep this |
| 3808 | // activity around. |
| 3809 | return false; |
Dianne Hackborn | 50dc3bc | 2010-06-25 10:05:59 -0700 | [diff] [blame] | 3810 | } |
| 3811 | |
| 3812 | // Default case: the activity can handle this new configuration, so |
| 3813 | // hand it over. Note that we don't need to give it the new |
| 3814 | // configuration, since we always send configuration changes to all |
| 3815 | // process when they happen so it can just use whatever configuration |
| 3816 | // it last got. |
| 3817 | if (r.app != null && r.app.thread != null) { |
| 3818 | try { |
| 3819 | if (DEBUG_CONFIGURATION) Slog.v(TAG, "Sending new config to " + r); |
| 3820 | r.app.thread.scheduleActivityConfigurationChanged(r); |
| 3821 | } catch (RemoteException e) { |
| 3822 | // If process died, whatever. |
| 3823 | } |
| 3824 | } |
| 3825 | r.stopFreezingScreenLocked(false); |
| 3826 | |
| 3827 | return true; |
| 3828 | } |
| 3829 | |
| 3830 | private final boolean relaunchActivityLocked(ActivityRecord r, |
| 3831 | int changes, boolean andResume) { |
| 3832 | List<ResultInfo> results = null; |
| 3833 | List<Intent> newIntents = null; |
| 3834 | if (andResume) { |
| 3835 | results = r.results; |
| 3836 | newIntents = r.newIntents; |
| 3837 | } |
| 3838 | if (DEBUG_SWITCH) Slog.v(TAG, "Relaunching: " + r |
| 3839 | + " with results=" + results + " newIntents=" + newIntents |
| 3840 | + " andResume=" + andResume); |
| 3841 | EventLog.writeEvent(andResume ? EventLogTags.AM_RELAUNCH_RESUME_ACTIVITY |
| 3842 | : EventLogTags.AM_RELAUNCH_ACTIVITY, System.identityHashCode(r), |
| 3843 | r.task.taskId, r.shortComponentName); |
| 3844 | |
| 3845 | r.startFreezingScreenLocked(r.app, 0); |
| 3846 | |
| 3847 | try { |
| 3848 | if (DEBUG_SWITCH) Slog.i(TAG, "Switch is restarting resumed " + r); |
| 3849 | r.app.thread.scheduleRelaunchActivity(r, results, newIntents, |
| 3850 | changes, !andResume, mService.mConfiguration); |
| 3851 | // Note: don't need to call pauseIfSleepingLocked() here, because |
| 3852 | // the caller will only pass in 'andResume' if this activity is |
| 3853 | // currently resumed, which implies we aren't sleeping. |
| 3854 | } catch (RemoteException e) { |
| 3855 | return false; |
| 3856 | } |
| 3857 | |
| 3858 | if (andResume) { |
| 3859 | r.results = null; |
| 3860 | r.newIntents = null; |
| 3861 | if (mMainStack) { |
| 3862 | mService.reportResumedActivityLocked(r); |
| 3863 | } |
| 3864 | } |
| 3865 | |
| 3866 | return true; |
| 3867 | } |
| 3868 | } |