| /* |
| * Copyright (C) 2010 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.server.am; |
| |
| import com.android.internal.app.HeavyWeightSwitcherActivity; |
| import com.android.internal.os.BatteryStatsImpl; |
| import com.android.server.am.ActivityManagerService.PendingActivityLaunch; |
| |
| import android.app.Activity; |
| import android.app.AppGlobals; |
| import android.app.IActivityManager; |
| import static android.app.IActivityManager.START_CLASS_NOT_FOUND; |
| import static android.app.IActivityManager.START_DELIVERED_TO_TOP; |
| import static android.app.IActivityManager.START_FORWARD_AND_REQUEST_CONFLICT; |
| import static android.app.IActivityManager.START_INTENT_NOT_RESOLVED; |
| import static android.app.IActivityManager.START_PERMISSION_DENIED; |
| import static android.app.IActivityManager.START_RETURN_INTENT_TO_CALLER; |
| import static android.app.IActivityManager.START_SUCCESS; |
| import static android.app.IActivityManager.START_SWITCHES_CANCELED; |
| import static android.app.IActivityManager.START_TASK_TO_FRONT; |
| import android.app.IApplicationThread; |
| import android.app.PendingIntent; |
| import android.app.ResultInfo; |
| import android.app.IActivityManager.WaitResult; |
| import android.content.ComponentName; |
| import android.content.Context; |
| import android.content.IIntentSender; |
| import android.content.Intent; |
| import android.content.IntentSender; |
| import android.content.pm.ActivityInfo; |
| import android.content.pm.ApplicationInfo; |
| import android.content.pm.PackageManager; |
| import android.content.pm.ResolveInfo; |
| import android.content.res.Configuration; |
| import android.content.res.Resources; |
| import android.graphics.Bitmap; |
| import android.net.Uri; |
| import android.os.Binder; |
| import android.os.Handler; |
| import android.os.IBinder; |
| import android.os.Message; |
| import android.os.PowerManager; |
| import android.os.RemoteException; |
| import android.os.SystemClock; |
| import android.util.EventLog; |
| import android.util.Log; |
| import android.util.Slog; |
| import android.view.WindowManagerPolicy; |
| |
| import java.lang.ref.WeakReference; |
| import java.util.ArrayList; |
| import java.util.Iterator; |
| import java.util.List; |
| |
| /** |
| * State and management of a single stack of activities. |
| */ |
| public class ActivityStack { |
| static final String TAG = ActivityManagerService.TAG; |
| static final boolean localLOGV = ActivityManagerService.localLOGV; |
| static final boolean DEBUG_SWITCH = ActivityManagerService.DEBUG_SWITCH; |
| static final boolean DEBUG_PAUSE = ActivityManagerService.DEBUG_PAUSE; |
| static final boolean DEBUG_VISBILITY = ActivityManagerService.DEBUG_VISBILITY; |
| static final boolean DEBUG_USER_LEAVING = ActivityManagerService.DEBUG_USER_LEAVING; |
| static final boolean DEBUG_TRANSITION = ActivityManagerService.DEBUG_TRANSITION; |
| static final boolean DEBUG_RESULTS = ActivityManagerService.DEBUG_RESULTS; |
| static final boolean DEBUG_CONFIGURATION = ActivityManagerService.DEBUG_CONFIGURATION; |
| static final boolean DEBUG_TASKS = ActivityManagerService.DEBUG_TASKS; |
| |
| static final boolean VALIDATE_TOKENS = ActivityManagerService.VALIDATE_TOKENS; |
| |
| // How long we wait until giving up on the last activity telling us it |
| // is idle. |
| static final int IDLE_TIMEOUT = 10*1000; |
| |
| // How long we wait until giving up on the last activity to pause. This |
| // is short because it directly impacts the responsiveness of starting the |
| // next activity. |
| static final int PAUSE_TIMEOUT = 500; |
| |
| // How long we can hold the sleep wake lock before giving up. |
| static final int SLEEP_TIMEOUT = 5*1000; |
| |
| // How long we can hold the launch wake lock before giving up. |
| static final int LAUNCH_TIMEOUT = 10*1000; |
| |
| // How long we wait until giving up on an activity telling us it has |
| // finished destroying itself. |
| static final int DESTROY_TIMEOUT = 10*1000; |
| |
| // How long until we reset a task when the user returns to it. Currently |
| // disabled. |
| static final long ACTIVITY_INACTIVE_RESET_TIME = 0; |
| |
| // How long between activity launches that we consider safe to not warn |
| // the user about an unexpected activity being launched on top. |
| static final long START_WARN_TIME = 5*1000; |
| |
| // Set to false to disable the preview that is shown while a new activity |
| // is being started. |
| static final boolean SHOW_APP_STARTING_PREVIEW = true; |
| |
| enum ActivityState { |
| INITIALIZING, |
| RESUMED, |
| PAUSING, |
| PAUSED, |
| STOPPING, |
| STOPPED, |
| FINISHING, |
| DESTROYING, |
| DESTROYED |
| } |
| |
| final ActivityManagerService mService; |
| final boolean mMainStack; |
| |
| final Context mContext; |
| |
| /** |
| * The back history of all previous (and possibly still |
| * running) activities. It contains HistoryRecord objects. |
| */ |
| final ArrayList mHistory = new ArrayList(); |
| |
| /** |
| * List of running activities, sorted by recent usage. |
| * The first entry in the list is the least recently used. |
| * It contains HistoryRecord objects. |
| */ |
| final ArrayList mLRUActivities = new ArrayList(); |
| |
| /** |
| * List of activities that are waiting for a new activity |
| * to become visible before completing whatever operation they are |
| * supposed to do. |
| */ |
| final ArrayList<ActivityRecord> mWaitingVisibleActivities |
| = new ArrayList<ActivityRecord>(); |
| |
| /** |
| * List of activities that are ready to be stopped, but waiting |
| * for the next activity to settle down before doing so. It contains |
| * HistoryRecord objects. |
| */ |
| final ArrayList<ActivityRecord> mStoppingActivities |
| = new ArrayList<ActivityRecord>(); |
| |
| /** |
| * List of activities that are in the process of going to sleep. |
| */ |
| final ArrayList<ActivityRecord> mGoingToSleepActivities |
| = new ArrayList<ActivityRecord>(); |
| |
| /** |
| * Animations that for the current transition have requested not to |
| * be considered for the transition animation. |
| */ |
| final ArrayList<ActivityRecord> mNoAnimActivities |
| = new ArrayList<ActivityRecord>(); |
| |
| /** |
| * List of activities that are ready to be finished, but waiting |
| * for the previous activity to settle down before doing so. It contains |
| * HistoryRecord objects. |
| */ |
| final ArrayList<ActivityRecord> mFinishingActivities |
| = new ArrayList<ActivityRecord>(); |
| |
| /** |
| * List of people waiting to find out about the next launched activity. |
| */ |
| final ArrayList<IActivityManager.WaitResult> mWaitingActivityLaunched |
| = new ArrayList<IActivityManager.WaitResult>(); |
| |
| /** |
| * List of people waiting to find out about the next visible activity. |
| */ |
| final ArrayList<IActivityManager.WaitResult> mWaitingActivityVisible |
| = new ArrayList<IActivityManager.WaitResult>(); |
| |
| /** |
| * Set when the system is going to sleep, until we have |
| * successfully paused the current activity and released our wake lock. |
| * At that point the system is allowed to actually sleep. |
| */ |
| final PowerManager.WakeLock mGoingToSleep; |
| |
| /** |
| * We don't want to allow the device to go to sleep while in the process |
| * of launching an activity. This is primarily to allow alarm intent |
| * receivers to launch an activity and get that to run before the device |
| * goes back to sleep. |
| */ |
| final PowerManager.WakeLock mLaunchingActivity; |
| |
| /** |
| * When we are in the process of pausing an activity, before starting the |
| * next one, this variable holds the activity that is currently being paused. |
| */ |
| ActivityRecord mPausingActivity = null; |
| |
| /** |
| * This is the last activity that we put into the paused state. This is |
| * used to determine if we need to do an activity transition while sleeping, |
| * when we normally hold the top activity paused. |
| */ |
| ActivityRecord mLastPausedActivity = null; |
| |
| /** |
| * Current activity that is resumed, or null if there is none. |
| */ |
| ActivityRecord mResumedActivity = null; |
| |
| /** |
| * This is the last activity that has been started. It is only used to |
| * identify when multiple activities are started at once so that the user |
| * can be warned they may not be in the activity they think they are. |
| */ |
| ActivityRecord mLastStartedActivity = null; |
| |
| /** |
| * Set when we know we are going to be calling updateConfiguration() |
| * soon, so want to skip intermediate config checks. |
| */ |
| boolean mConfigWillChange; |
| |
| /** |
| * Set to indicate whether to issue an onUserLeaving callback when a |
| * newly launched activity is being brought in front of us. |
| */ |
| boolean mUserLeaving = false; |
| |
| long mInitialStartTime = 0; |
| |
| /** |
| * Set when we have taken too long waiting to go to sleep. |
| */ |
| boolean mSleepTimeout = false; |
| |
| int mThumbnailWidth = -1; |
| int mThumbnailHeight = -1; |
| |
| static final int SLEEP_TIMEOUT_MSG = 8; |
| static final int PAUSE_TIMEOUT_MSG = 9; |
| static final int IDLE_TIMEOUT_MSG = 10; |
| static final int IDLE_NOW_MSG = 11; |
| static final int LAUNCH_TIMEOUT_MSG = 16; |
| static final int DESTROY_TIMEOUT_MSG = 17; |
| static final int RESUME_TOP_ACTIVITY_MSG = 19; |
| |
| final Handler mHandler = new Handler() { |
| //public Handler() { |
| // if (localLOGV) Slog.v(TAG, "Handler started!"); |
| //} |
| |
| public void handleMessage(Message msg) { |
| switch (msg.what) { |
| case SLEEP_TIMEOUT_MSG: { |
| if (mService.isSleeping()) { |
| Slog.w(TAG, "Sleep timeout! Sleeping now."); |
| mSleepTimeout = true; |
| checkReadyForSleepLocked(); |
| } |
| } break; |
| case PAUSE_TIMEOUT_MSG: { |
| IBinder token = (IBinder)msg.obj; |
| // We don't at this point know if the activity is fullscreen, |
| // so we need to be conservative and assume it isn't. |
| Slog.w(TAG, "Activity pause timeout for " + token); |
| activityPaused(token, true); |
| } break; |
| case IDLE_TIMEOUT_MSG: { |
| if (mService.mDidDexOpt) { |
| mService.mDidDexOpt = false; |
| Message nmsg = mHandler.obtainMessage(IDLE_TIMEOUT_MSG); |
| nmsg.obj = msg.obj; |
| mHandler.sendMessageDelayed(nmsg, IDLE_TIMEOUT); |
| return; |
| } |
| // We don't at this point know if the activity is fullscreen, |
| // so we need to be conservative and assume it isn't. |
| IBinder token = (IBinder)msg.obj; |
| Slog.w(TAG, "Activity idle timeout for " + token); |
| activityIdleInternal(token, true, null); |
| } break; |
| case DESTROY_TIMEOUT_MSG: { |
| IBinder token = (IBinder)msg.obj; |
| // We don't at this point know if the activity is fullscreen, |
| // so we need to be conservative and assume it isn't. |
| Slog.w(TAG, "Activity destroy timeout for " + token); |
| activityDestroyed(token); |
| } break; |
| case IDLE_NOW_MSG: { |
| IBinder token = (IBinder)msg.obj; |
| activityIdleInternal(token, false, null); |
| } break; |
| case LAUNCH_TIMEOUT_MSG: { |
| if (mService.mDidDexOpt) { |
| mService.mDidDexOpt = false; |
| Message nmsg = mHandler.obtainMessage(LAUNCH_TIMEOUT_MSG); |
| mHandler.sendMessageDelayed(nmsg, LAUNCH_TIMEOUT); |
| return; |
| } |
| synchronized (mService) { |
| if (mLaunchingActivity.isHeld()) { |
| Slog.w(TAG, "Launch timeout has expired, giving up wake lock!"); |
| mLaunchingActivity.release(); |
| } |
| } |
| } break; |
| case RESUME_TOP_ACTIVITY_MSG: { |
| synchronized (mService) { |
| resumeTopActivityLocked(null); |
| } |
| } break; |
| } |
| } |
| }; |
| |
| ActivityStack(ActivityManagerService service, Context context, boolean mainStack) { |
| mService = service; |
| mContext = context; |
| mMainStack = mainStack; |
| PowerManager pm = |
| (PowerManager)context.getSystemService(Context.POWER_SERVICE); |
| mGoingToSleep = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "ActivityManager-Sleep"); |
| mLaunchingActivity = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "ActivityManager-Launch"); |
| mLaunchingActivity.setReferenceCounted(false); |
| } |
| |
| final ActivityRecord topRunningActivityLocked(ActivityRecord notTop) { |
| int i = mHistory.size()-1; |
| while (i >= 0) { |
| ActivityRecord r = (ActivityRecord)mHistory.get(i); |
| if (!r.finishing && r != notTop) { |
| return r; |
| } |
| i--; |
| } |
| return null; |
| } |
| |
| final ActivityRecord topRunningNonDelayedActivityLocked(ActivityRecord notTop) { |
| int i = mHistory.size()-1; |
| while (i >= 0) { |
| ActivityRecord r = (ActivityRecord)mHistory.get(i); |
| if (!r.finishing && !r.delayedResume && r != notTop) { |
| return r; |
| } |
| i--; |
| } |
| return null; |
| } |
| |
| /** |
| * This is a simplified version of topRunningActivityLocked that provides a number of |
| * optional skip-over modes. It is intended for use with the ActivityController hook only. |
| * |
| * @param token If non-null, any history records matching this token will be skipped. |
| * @param taskId If non-zero, we'll attempt to skip over records with the same task ID. |
| * |
| * @return Returns the HistoryRecord of the next activity on the stack. |
| */ |
| final ActivityRecord topRunningActivityLocked(IBinder token, int taskId) { |
| int i = mHistory.size()-1; |
| while (i >= 0) { |
| ActivityRecord r = (ActivityRecord)mHistory.get(i); |
| // Note: the taskId check depends on real taskId fields being non-zero |
| if (!r.finishing && (token != r) && (taskId != r.task.taskId)) { |
| return r; |
| } |
| i--; |
| } |
| return null; |
| } |
| |
| final int indexOfTokenLocked(IBinder token) { |
| int count = mHistory.size(); |
| |
| // convert the token to an entry in the history. |
| int index = -1; |
| for (int i=count-1; i>=0; i--) { |
| Object o = mHistory.get(i); |
| if (o == token) { |
| index = i; |
| break; |
| } |
| } |
| |
| return index; |
| } |
| |
| private final boolean updateLRUListLocked(ActivityRecord r) { |
| final boolean hadit = mLRUActivities.remove(r); |
| mLRUActivities.add(r); |
| return hadit; |
| } |
| |
| /** |
| * Returns the top activity in any existing task matching the given |
| * Intent. Returns null if no such task is found. |
| */ |
| private ActivityRecord findTaskLocked(Intent intent, ActivityInfo info) { |
| ComponentName cls = intent.getComponent(); |
| if (info.targetActivity != null) { |
| cls = new ComponentName(info.packageName, info.targetActivity); |
| } |
| |
| TaskRecord cp = null; |
| |
| final int N = mHistory.size(); |
| for (int i=(N-1); i>=0; i--) { |
| ActivityRecord r = (ActivityRecord)mHistory.get(i); |
| if (!r.finishing && r.task != cp |
| && r.launchMode != ActivityInfo.LAUNCH_SINGLE_INSTANCE) { |
| cp = r.task; |
| //Slog.i(TAG, "Comparing existing cls=" + r.task.intent.getComponent().flattenToShortString() |
| // + "/aff=" + r.task.affinity + " to new cls=" |
| // + intent.getComponent().flattenToShortString() + "/aff=" + taskAffinity); |
| if (r.task.affinity != null) { |
| if (r.task.affinity.equals(info.taskAffinity)) { |
| //Slog.i(TAG, "Found matching affinity!"); |
| return r; |
| } |
| } else if (r.task.intent != null |
| && r.task.intent.getComponent().equals(cls)) { |
| //Slog.i(TAG, "Found matching class!"); |
| //dump(); |
| //Slog.i(TAG, "For Intent " + intent + " bringing to top: " + r.intent); |
| return r; |
| } else if (r.task.affinityIntent != null |
| && r.task.affinityIntent.getComponent().equals(cls)) { |
| //Slog.i(TAG, "Found matching class!"); |
| //dump(); |
| //Slog.i(TAG, "For Intent " + intent + " bringing to top: " + r.intent); |
| return r; |
| } |
| } |
| } |
| |
| return null; |
| } |
| |
| /** |
| * Returns the first activity (starting from the top of the stack) that |
| * is the same as the given activity. Returns null if no such activity |
| * is found. |
| */ |
| private ActivityRecord findActivityLocked(Intent intent, ActivityInfo info) { |
| ComponentName cls = intent.getComponent(); |
| if (info.targetActivity != null) { |
| cls = new ComponentName(info.packageName, info.targetActivity); |
| } |
| |
| final int N = mHistory.size(); |
| for (int i=(N-1); i>=0; i--) { |
| ActivityRecord r = (ActivityRecord)mHistory.get(i); |
| if (!r.finishing) { |
| if (r.intent.getComponent().equals(cls)) { |
| //Slog.i(TAG, "Found matching class!"); |
| //dump(); |
| //Slog.i(TAG, "For Intent " + intent + " bringing to top: " + r.intent); |
| return r; |
| } |
| } |
| } |
| |
| return null; |
| } |
| |
| final void showAskCompatModeDialogLocked(ActivityRecord r) { |
| Message msg = Message.obtain(); |
| msg.what = ActivityManagerService.SHOW_COMPAT_MODE_DIALOG_MSG; |
| msg.obj = r.task.askedCompatMode ? null : r; |
| mService.mHandler.sendMessage(msg); |
| } |
| |
| final boolean realStartActivityLocked(ActivityRecord r, |
| ProcessRecord app, boolean andResume, boolean checkConfig) |
| throws RemoteException { |
| |
| r.startFreezingScreenLocked(app, 0); |
| mService.mWindowManager.setAppVisibility(r, true); |
| |
| // Have the window manager re-evaluate the orientation of |
| // the screen based on the new activity order. Note that |
| // as a result of this, it can call back into the activity |
| // manager with a new orientation. We don't care about that, |
| // because the activity is not currently running so we are |
| // just restarting it anyway. |
| if (checkConfig) { |
| Configuration config = mService.mWindowManager.updateOrientationFromAppTokens( |
| mService.mConfiguration, |
| r.mayFreezeScreenLocked(app) ? r : null); |
| mService.updateConfigurationLocked(config, r); |
| } |
| |
| r.app = app; |
| |
| if (localLOGV) Slog.v(TAG, "Launching: " + r); |
| |
| int idx = app.activities.indexOf(r); |
| if (idx < 0) { |
| app.activities.add(r); |
| } |
| mService.updateLruProcessLocked(app, true, true); |
| |
| try { |
| if (app.thread == null) { |
| throw new RemoteException(); |
| } |
| List<ResultInfo> results = null; |
| List<Intent> newIntents = null; |
| if (andResume) { |
| results = r.results; |
| newIntents = r.newIntents; |
| } |
| if (DEBUG_SWITCH) Slog.v(TAG, "Launching: " + r |
| + " icicle=" + r.icicle |
| + " with results=" + results + " newIntents=" + newIntents |
| + " andResume=" + andResume); |
| if (andResume) { |
| EventLog.writeEvent(EventLogTags.AM_RESTART_ACTIVITY, |
| System.identityHashCode(r), |
| r.task.taskId, r.shortComponentName); |
| } |
| if (r.isHomeActivity) { |
| mService.mHomeProcess = app; |
| } |
| mService.ensurePackageDexOpt(r.intent.getComponent().getPackageName()); |
| r.sleeping = false; |
| r.forceNewConfig = false; |
| showAskCompatModeDialogLocked(r); |
| app.thread.scheduleLaunchActivity(new Intent(r.intent), r, |
| System.identityHashCode(r), |
| r.info, mService.compatibilityInfoForPackageLocked(r.info.applicationInfo), |
| r.icicle, results, newIntents, !andResume, |
| mService.isNextTransitionForward()); |
| |
| if ((app.info.flags&ApplicationInfo.FLAG_CANT_SAVE_STATE) != 0) { |
| // This may be a heavy-weight process! Note that the package |
| // manager will ensure that only activity can run in the main |
| // process of the .apk, which is the only thing that will be |
| // considered heavy-weight. |
| if (app.processName.equals(app.info.packageName)) { |
| if (mService.mHeavyWeightProcess != null |
| && mService.mHeavyWeightProcess != app) { |
| Log.w(TAG, "Starting new heavy weight process " + app |
| + " when already running " |
| + mService.mHeavyWeightProcess); |
| } |
| mService.mHeavyWeightProcess = app; |
| Message msg = mService.mHandler.obtainMessage( |
| ActivityManagerService.POST_HEAVY_NOTIFICATION_MSG); |
| msg.obj = r; |
| mService.mHandler.sendMessage(msg); |
| } |
| } |
| |
| } catch (RemoteException e) { |
| if (r.launchFailed) { |
| // This is the second time we failed -- finish activity |
| // and give up. |
| Slog.e(TAG, "Second failure launching " |
| + r.intent.getComponent().flattenToShortString() |
| + ", giving up", e); |
| mService.appDiedLocked(app, app.pid, app.thread); |
| requestFinishActivityLocked(r, Activity.RESULT_CANCELED, null, |
| "2nd-crash"); |
| return false; |
| } |
| |
| // This is the first time we failed -- restart process and |
| // retry. |
| app.activities.remove(r); |
| throw e; |
| } |
| |
| r.launchFailed = false; |
| if (updateLRUListLocked(r)) { |
| Slog.w(TAG, "Activity " + r |
| + " being launched, but already in LRU list"); |
| } |
| |
| if (andResume) { |
| // As part of the process of launching, ActivityThread also performs |
| // a resume. |
| r.state = ActivityState.RESUMED; |
| r.stopped = false; |
| mResumedActivity = r; |
| r.task.touchActiveTime(); |
| if (mMainStack) { |
| mService.addRecentTaskLocked(r.task); |
| } |
| completeResumeLocked(r); |
| checkReadyForSleepLocked(); |
| } else { |
| // This activity is not starting in the resumed state... which |
| // should look like we asked it to pause+stop (but remain visible), |
| // and it has done so and reported back the current icicle and |
| // other state. |
| r.state = ActivityState.STOPPED; |
| r.stopped = true; |
| } |
| |
| r.icicle = null; |
| r.haveState = false; |
| |
| // Launch the new version setup screen if needed. We do this -after- |
| // launching the initial activity (that is, home), so that it can have |
| // a chance to initialize itself while in the background, making the |
| // switch back to it faster and look better. |
| if (mMainStack) { |
| mService.startSetupActivityLocked(); |
| } |
| |
| return true; |
| } |
| |
| private final void startSpecificActivityLocked(ActivityRecord r, |
| boolean andResume, boolean checkConfig) { |
| // Is this activity's application already running? |
| ProcessRecord app = mService.getProcessRecordLocked(r.processName, |
| r.info.applicationInfo.uid); |
| |
| if (r.launchTime == 0) { |
| r.launchTime = SystemClock.uptimeMillis(); |
| if (mInitialStartTime == 0) { |
| mInitialStartTime = r.launchTime; |
| } |
| } else if (mInitialStartTime == 0) { |
| mInitialStartTime = SystemClock.uptimeMillis(); |
| } |
| |
| if (app != null && app.thread != null) { |
| try { |
| realStartActivityLocked(r, app, andResume, checkConfig); |
| return; |
| } catch (RemoteException e) { |
| Slog.w(TAG, "Exception when starting activity " |
| + r.intent.getComponent().flattenToShortString(), e); |
| } |
| |
| // If a dead object exception was thrown -- fall through to |
| // restart the application. |
| } |
| |
| mService.startProcessLocked(r.processName, r.info.applicationInfo, true, 0, |
| "activity", r.intent.getComponent(), false); |
| } |
| |
| void stopIfSleepingLocked() { |
| if (mService.isSleeping()) { |
| if (!mGoingToSleep.isHeld()) { |
| mGoingToSleep.acquire(); |
| if (mLaunchingActivity.isHeld()) { |
| mLaunchingActivity.release(); |
| mService.mHandler.removeMessages(LAUNCH_TIMEOUT_MSG); |
| } |
| } |
| mHandler.removeMessages(SLEEP_TIMEOUT_MSG); |
| Message msg = mHandler.obtainMessage(SLEEP_TIMEOUT_MSG); |
| mHandler.sendMessageDelayed(msg, SLEEP_TIMEOUT); |
| checkReadyForSleepLocked(); |
| } |
| } |
| |
| void awakeFromSleepingLocked() { |
| mHandler.removeMessages(SLEEP_TIMEOUT_MSG); |
| mSleepTimeout = false; |
| if (mGoingToSleep.isHeld()) { |
| mGoingToSleep.release(); |
| } |
| // Ensure activities are no longer sleeping. |
| for (int i=mHistory.size()-1; i>=0; i--) { |
| ActivityRecord r = (ActivityRecord)mHistory.get(i); |
| r.setSleeping(false); |
| } |
| mGoingToSleepActivities.clear(); |
| } |
| |
| void activitySleptLocked(ActivityRecord r) { |
| mGoingToSleepActivities.remove(r); |
| checkReadyForSleepLocked(); |
| } |
| |
| void checkReadyForSleepLocked() { |
| if (!mService.isSleeping()) { |
| // Do not care. |
| return; |
| } |
| |
| if (!mSleepTimeout) { |
| if (mResumedActivity != null) { |
| // Still have something resumed; can't sleep until it is paused. |
| if (DEBUG_PAUSE) Slog.v(TAG, "Sleep needs to pause " + mResumedActivity); |
| if (DEBUG_USER_LEAVING) Slog.v(TAG, "Sleep => pause with userLeaving=false"); |
| startPausingLocked(false, true); |
| return; |
| } |
| if (mPausingActivity != null) { |
| // Still waiting for something to pause; can't sleep yet. |
| if (DEBUG_PAUSE) Slog.v(TAG, "Sleep still waiting to pause " + mPausingActivity); |
| return; |
| } |
| |
| if (mStoppingActivities.size() > 0) { |
| // Still need to tell some activities to stop; can't sleep yet. |
| if (DEBUG_PAUSE) Slog.v(TAG, "Sleep still need to stop " |
| + mStoppingActivities.size() + " activities"); |
| Message msg = Message.obtain(); |
| msg.what = IDLE_NOW_MSG; |
| mHandler.sendMessage(msg); |
| return; |
| } |
| |
| ensureActivitiesVisibleLocked(null, 0); |
| |
| // Make sure any stopped but visible activities are now sleeping. |
| // This ensures that the activity's onStop() is called. |
| for (int i=mHistory.size()-1; i>=0; i--) { |
| ActivityRecord r = (ActivityRecord)mHistory.get(i); |
| if (r.state == ActivityState.STOPPING || r.state == ActivityState.STOPPED) { |
| r.setSleeping(true); |
| } |
| } |
| |
| if (mGoingToSleepActivities.size() > 0) { |
| // Still need to tell some activities to sleep; can't sleep yet. |
| if (DEBUG_PAUSE) Slog.v(TAG, "Sleep still need to sleep " |
| + mGoingToSleepActivities.size() + " activities"); |
| return; |
| } |
| } |
| |
| mHandler.removeMessages(SLEEP_TIMEOUT_MSG); |
| |
| if (mGoingToSleep.isHeld()) { |
| mGoingToSleep.release(); |
| } |
| if (mService.mShuttingDown) { |
| mService.notifyAll(); |
| } |
| |
| } |
| |
| public final Bitmap screenshotActivities(ActivityRecord who) { |
| if (who.noDisplay) { |
| return null; |
| } |
| |
| Resources res = mService.mContext.getResources(); |
| int w = mThumbnailWidth; |
| int h = mThumbnailHeight; |
| if (w < 0) { |
| mThumbnailWidth = w = |
| res.getDimensionPixelSize(com.android.internal.R.dimen.thumbnail_width); |
| mThumbnailHeight = h = |
| res.getDimensionPixelSize(com.android.internal.R.dimen.thumbnail_height); |
| } |
| |
| if (w > 0) { |
| return mService.mWindowManager.screenshotApplications(who, w, h); |
| } |
| return null; |
| } |
| |
| private final void startPausingLocked(boolean userLeaving, boolean uiSleeping) { |
| if (mPausingActivity != null) { |
| RuntimeException e = new RuntimeException(); |
| Slog.e(TAG, "Trying to pause when pause is already pending for " |
| + mPausingActivity, e); |
| } |
| ActivityRecord prev = mResumedActivity; |
| if (prev == null) { |
| RuntimeException e = new RuntimeException(); |
| Slog.e(TAG, "Trying to pause when nothing is resumed", e); |
| resumeTopActivityLocked(null); |
| return; |
| } |
| if (DEBUG_PAUSE) Slog.v(TAG, "Start pausing: " + prev); |
| mResumedActivity = null; |
| mPausingActivity = prev; |
| mLastPausedActivity = prev; |
| prev.state = ActivityState.PAUSING; |
| prev.task.touchActiveTime(); |
| prev.thumbnail = screenshotActivities(prev); |
| if (prev.task != null) { |
| prev.task.lastThumbnail = prev.thumbnail; |
| } |
| |
| mService.updateCpuStats(); |
| |
| if (prev.app != null && prev.app.thread != null) { |
| if (DEBUG_PAUSE) Slog.v(TAG, "Enqueueing pending pause: " + prev); |
| try { |
| EventLog.writeEvent(EventLogTags.AM_PAUSE_ACTIVITY, |
| System.identityHashCode(prev), |
| prev.shortComponentName); |
| prev.app.thread.schedulePauseActivity(prev, prev.finishing, userLeaving, |
| prev.configChangeFlags); |
| if (mMainStack) { |
| mService.updateUsageStats(prev, false); |
| } |
| } catch (Exception e) { |
| // Ignore exception, if process died other code will cleanup. |
| Slog.w(TAG, "Exception thrown during pause", e); |
| mPausingActivity = null; |
| mLastPausedActivity = null; |
| } |
| } else { |
| mPausingActivity = null; |
| mLastPausedActivity = null; |
| } |
| |
| // If we are not going to sleep, we want to ensure the device is |
| // awake until the next activity is started. |
| if (!mService.mSleeping && !mService.mShuttingDown) { |
| mLaunchingActivity.acquire(); |
| if (!mHandler.hasMessages(LAUNCH_TIMEOUT_MSG)) { |
| // To be safe, don't allow the wake lock to be held for too long. |
| Message msg = mHandler.obtainMessage(LAUNCH_TIMEOUT_MSG); |
| mHandler.sendMessageDelayed(msg, LAUNCH_TIMEOUT); |
| } |
| } |
| |
| |
| if (mPausingActivity != null) { |
| // Have the window manager pause its key dispatching until the new |
| // activity has started. If we're pausing the activity just because |
| // the screen is being turned off and the UI is sleeping, don't interrupt |
| // key dispatch; the same activity will pick it up again on wakeup. |
| if (!uiSleeping) { |
| prev.pauseKeyDispatchingLocked(); |
| } else { |
| if (DEBUG_PAUSE) Slog.v(TAG, "Key dispatch not paused for screen off"); |
| } |
| |
| // Schedule a pause timeout in case the app doesn't respond. |
| // We don't give it much time because this directly impacts the |
| // responsiveness seen by the user. |
| Message msg = mHandler.obtainMessage(PAUSE_TIMEOUT_MSG); |
| msg.obj = prev; |
| mHandler.sendMessageDelayed(msg, PAUSE_TIMEOUT); |
| if (DEBUG_PAUSE) Slog.v(TAG, "Waiting for pause to complete..."); |
| } else { |
| // This activity failed to schedule the |
| // pause, so just treat it as being paused now. |
| if (DEBUG_PAUSE) Slog.v(TAG, "Activity not running, resuming next."); |
| resumeTopActivityLocked(null); |
| } |
| } |
| |
| final void activityPaused(IBinder token, boolean timeout) { |
| if (DEBUG_PAUSE) Slog.v( |
| TAG, "Activity paused: token=" + token + ", timeout=" + timeout); |
| |
| ActivityRecord r = null; |
| |
| synchronized (mService) { |
| int index = indexOfTokenLocked(token); |
| if (index >= 0) { |
| r = (ActivityRecord)mHistory.get(index); |
| mHandler.removeMessages(PAUSE_TIMEOUT_MSG, r); |
| if (mPausingActivity == r) { |
| r.state = ActivityState.PAUSED; |
| completePauseLocked(); |
| } else { |
| EventLog.writeEvent(EventLogTags.AM_FAILED_TO_PAUSE, |
| System.identityHashCode(r), r.shortComponentName, |
| mPausingActivity != null |
| ? mPausingActivity.shortComponentName : "(none)"); |
| } |
| } |
| } |
| } |
| |
| private final void completePauseLocked() { |
| ActivityRecord prev = mPausingActivity; |
| if (DEBUG_PAUSE) Slog.v(TAG, "Complete pause: " + prev); |
| |
| if (prev != null) { |
| if (prev.finishing) { |
| if (DEBUG_PAUSE) Slog.v(TAG, "Executing finish of activity: " + prev); |
| prev = finishCurrentActivityLocked(prev, FINISH_AFTER_VISIBLE); |
| } else if (prev.app != null) { |
| if (DEBUG_PAUSE) Slog.v(TAG, "Enqueueing pending stop: " + prev); |
| if (prev.waitingVisible) { |
| prev.waitingVisible = false; |
| mWaitingVisibleActivities.remove(prev); |
| if (DEBUG_SWITCH || DEBUG_PAUSE) Slog.v( |
| TAG, "Complete pause, no longer waiting: " + prev); |
| } |
| if (prev.configDestroy) { |
| // The previous is being paused because the configuration |
| // is changing, which means it is actually stopping... |
| // To juggle the fact that we are also starting a new |
| // instance right now, we need to first completely stop |
| // the current instance before starting the new one. |
| if (DEBUG_PAUSE) Slog.v(TAG, "Destroying after pause: " + prev); |
| destroyActivityLocked(prev, true); |
| } else { |
| mStoppingActivities.add(prev); |
| if (mStoppingActivities.size() > 3) { |
| // If we already have a few activities waiting to stop, |
| // then give up on things going idle and start clearing |
| // them out. |
| if (DEBUG_PAUSE) Slog.v(TAG, "To many pending stops, forcing idle"); |
| Message msg = Message.obtain(); |
| msg.what = IDLE_NOW_MSG; |
| mHandler.sendMessage(msg); |
| } else { |
| checkReadyForSleepLocked(); |
| } |
| } |
| } else { |
| if (DEBUG_PAUSE) Slog.v(TAG, "App died during pause, not stopping: " + prev); |
| prev = null; |
| } |
| mPausingActivity = null; |
| } |
| |
| if (!mService.isSleeping()) { |
| resumeTopActivityLocked(prev); |
| } else { |
| checkReadyForSleepLocked(); |
| } |
| |
| if (prev != null) { |
| prev.resumeKeyDispatchingLocked(); |
| } |
| |
| if (prev.app != null && prev.cpuTimeAtResume > 0 |
| && mService.mBatteryStatsService.isOnBattery()) { |
| long diff = 0; |
| synchronized (mService.mProcessStatsThread) { |
| diff = mService.mProcessStats.getCpuTimeForPid(prev.app.pid) |
| - prev.cpuTimeAtResume; |
| } |
| if (diff > 0) { |
| BatteryStatsImpl bsi = mService.mBatteryStatsService.getActiveStatistics(); |
| synchronized (bsi) { |
| BatteryStatsImpl.Uid.Proc ps = |
| bsi.getProcessStatsLocked(prev.info.applicationInfo.uid, |
| prev.info.packageName); |
| if (ps != null) { |
| ps.addForegroundTimeLocked(diff); |
| } |
| } |
| } |
| } |
| prev.cpuTimeAtResume = 0; // reset it |
| } |
| |
| /** |
| * Once we know that we have asked an application to put an activity in |
| * the resumed state (either by launching it or explicitly telling it), |
| * this function updates the rest of our state to match that fact. |
| */ |
| private final void completeResumeLocked(ActivityRecord next) { |
| next.idle = false; |
| next.results = null; |
| next.newIntents = null; |
| |
| // schedule an idle timeout in case the app doesn't do it for us. |
| Message msg = mHandler.obtainMessage(IDLE_TIMEOUT_MSG); |
| msg.obj = next; |
| mHandler.sendMessageDelayed(msg, IDLE_TIMEOUT); |
| |
| if (false) { |
| // The activity was never told to pause, so just keep |
| // things going as-is. To maintain our own state, |
| // we need to emulate it coming back and saying it is |
| // idle. |
| msg = mHandler.obtainMessage(IDLE_NOW_MSG); |
| msg.obj = next; |
| mHandler.sendMessage(msg); |
| } |
| |
| if (mMainStack) { |
| mService.reportResumedActivityLocked(next); |
| } |
| |
| next.thumbnail = null; |
| if (mMainStack) { |
| mService.setFocusedActivityLocked(next); |
| } |
| next.resumeKeyDispatchingLocked(); |
| ensureActivitiesVisibleLocked(null, 0); |
| mService.mWindowManager.executeAppTransition(); |
| mNoAnimActivities.clear(); |
| |
| // Mark the point when the activity is resuming |
| // TODO: To be more accurate, the mark should be before the onCreate, |
| // not after the onResume. But for subsequent starts, onResume is fine. |
| if (next.app != null) { |
| synchronized (mService.mProcessStatsThread) { |
| next.cpuTimeAtResume = mService.mProcessStats.getCpuTimeForPid(next.app.pid); |
| } |
| } else { |
| next.cpuTimeAtResume = 0; // Couldn't get the cpu time of process |
| } |
| } |
| |
| /** |
| * Make sure that all activities that need to be visible (that is, they |
| * currently can be seen by the user) actually are. |
| */ |
| final void ensureActivitiesVisibleLocked(ActivityRecord top, |
| ActivityRecord starting, String onlyThisProcess, int configChanges) { |
| if (DEBUG_VISBILITY) Slog.v( |
| TAG, "ensureActivitiesVisible behind " + top |
| + " configChanges=0x" + Integer.toHexString(configChanges)); |
| |
| // If the top activity is not fullscreen, then we need to |
| // make sure any activities under it are now visible. |
| final int count = mHistory.size(); |
| int i = count-1; |
| while (mHistory.get(i) != top) { |
| i--; |
| } |
| ActivityRecord r; |
| boolean behindFullscreen = false; |
| for (; i>=0; i--) { |
| r = (ActivityRecord)mHistory.get(i); |
| if (DEBUG_VISBILITY) Slog.v( |
| TAG, "Make visible? " + r + " finishing=" + r.finishing |
| + " state=" + r.state); |
| if (r.finishing) { |
| continue; |
| } |
| |
| final boolean doThisProcess = onlyThisProcess == null |
| || onlyThisProcess.equals(r.processName); |
| |
| // First: if this is not the current activity being started, make |
| // sure it matches the current configuration. |
| if (r != starting && doThisProcess) { |
| ensureActivityConfigurationLocked(r, 0); |
| } |
| |
| if (r.app == null || r.app.thread == null) { |
| if (onlyThisProcess == null |
| || onlyThisProcess.equals(r.processName)) { |
| // This activity needs to be visible, but isn't even |
| // running... get it started, but don't resume it |
| // at this point. |
| if (DEBUG_VISBILITY) Slog.v( |
| TAG, "Start and freeze screen for " + r); |
| if (r != starting) { |
| r.startFreezingScreenLocked(r.app, configChanges); |
| } |
| if (!r.visible) { |
| if (DEBUG_VISBILITY) Slog.v( |
| TAG, "Starting and making visible: " + r); |
| mService.mWindowManager.setAppVisibility(r, true); |
| } |
| if (r != starting) { |
| startSpecificActivityLocked(r, false, false); |
| } |
| } |
| |
| } else if (r.visible) { |
| // If this activity is already visible, then there is nothing |
| // else to do here. |
| if (DEBUG_VISBILITY) Slog.v( |
| TAG, "Skipping: already visible at " + r); |
| r.stopFreezingScreenLocked(false); |
| |
| } else if (onlyThisProcess == null) { |
| // This activity is not currently visible, but is running. |
| // Tell it to become visible. |
| r.visible = true; |
| if (r.state != ActivityState.RESUMED && r != starting) { |
| // If this activity is paused, tell it |
| // to now show its window. |
| if (DEBUG_VISBILITY) Slog.v( |
| TAG, "Making visible and scheduling visibility: " + r); |
| try { |
| mService.mWindowManager.setAppVisibility(r, true); |
| r.sleeping = false; |
| r.app.thread.scheduleWindowVisibility(r, true); |
| r.stopFreezingScreenLocked(false); |
| } catch (Exception e) { |
| // Just skip on any failure; we'll make it |
| // visible when it next restarts. |
| Slog.w(TAG, "Exception thrown making visibile: " |
| + r.intent.getComponent(), e); |
| } |
| } |
| } |
| |
| // Aggregate current change flags. |
| configChanges |= r.configChangeFlags; |
| |
| if (r.fullscreen) { |
| // At this point, nothing else needs to be shown |
| if (DEBUG_VISBILITY) Slog.v( |
| TAG, "Stopping: fullscreen at " + r); |
| behindFullscreen = true; |
| i--; |
| break; |
| } |
| } |
| |
| // Now for any activities that aren't visible to the user, make |
| // sure they no longer are keeping the screen frozen. |
| while (i >= 0) { |
| r = (ActivityRecord)mHistory.get(i); |
| if (DEBUG_VISBILITY) Slog.v( |
| TAG, "Make invisible? " + r + " finishing=" + r.finishing |
| + " state=" + r.state |
| + " behindFullscreen=" + behindFullscreen); |
| if (!r.finishing) { |
| if (behindFullscreen) { |
| if (r.visible) { |
| if (DEBUG_VISBILITY) Slog.v( |
| TAG, "Making invisible: " + r); |
| r.visible = false; |
| try { |
| mService.mWindowManager.setAppVisibility(r, false); |
| if ((r.state == ActivityState.STOPPING |
| || r.state == ActivityState.STOPPED) |
| && r.app != null && r.app.thread != null) { |
| if (DEBUG_VISBILITY) Slog.v( |
| TAG, "Scheduling invisibility: " + r); |
| r.app.thread.scheduleWindowVisibility(r, false); |
| } |
| } catch (Exception e) { |
| // Just skip on any failure; we'll make it |
| // visible when it next restarts. |
| Slog.w(TAG, "Exception thrown making hidden: " |
| + r.intent.getComponent(), e); |
| } |
| } else { |
| if (DEBUG_VISBILITY) Slog.v( |
| TAG, "Already invisible: " + r); |
| } |
| } else if (r.fullscreen) { |
| if (DEBUG_VISBILITY) Slog.v( |
| TAG, "Now behindFullscreen: " + r); |
| behindFullscreen = true; |
| } |
| } |
| i--; |
| } |
| } |
| |
| /** |
| * Version of ensureActivitiesVisible that can easily be called anywhere. |
| */ |
| final void ensureActivitiesVisibleLocked(ActivityRecord starting, |
| int configChanges) { |
| ActivityRecord r = topRunningActivityLocked(null); |
| if (r != null) { |
| ensureActivitiesVisibleLocked(r, starting, null, configChanges); |
| } |
| } |
| |
| /** |
| * Ensure that the top activity in the stack is resumed. |
| * |
| * @param prev The previously resumed activity, for when in the process |
| * of pausing; can be null to call from elsewhere. |
| * |
| * @return Returns true if something is being resumed, or false if |
| * nothing happened. |
| */ |
| final boolean resumeTopActivityLocked(ActivityRecord prev) { |
| // Find the first activity that is not finishing. |
| ActivityRecord next = topRunningActivityLocked(null); |
| |
| // Remember how we'll process this pause/resume situation, and ensure |
| // that the state is reset however we wind up proceeding. |
| final boolean userLeaving = mUserLeaving; |
| mUserLeaving = false; |
| |
| if (next == null) { |
| // There are no more activities! Let's just start up the |
| // Launcher... |
| if (mMainStack) { |
| return mService.startHomeActivityLocked(); |
| } |
| } |
| |
| next.delayedResume = false; |
| |
| // If the top activity is the resumed one, nothing to do. |
| if (mResumedActivity == next && next.state == ActivityState.RESUMED) { |
| // Make sure we have executed any pending transitions, since there |
| // should be nothing left to do at this point. |
| mService.mWindowManager.executeAppTransition(); |
| mNoAnimActivities.clear(); |
| return false; |
| } |
| |
| // If we are sleeping, and there is no resumed activity, and the top |
| // activity is paused, well that is the state we want. |
| if ((mService.mSleeping || mService.mShuttingDown) |
| && mLastPausedActivity == next && next.state == ActivityState.PAUSED) { |
| // Make sure we have executed any pending transitions, since there |
| // should be nothing left to do at this point. |
| mService.mWindowManager.executeAppTransition(); |
| mNoAnimActivities.clear(); |
| return false; |
| } |
| |
| // The activity may be waiting for stop, but that is no longer |
| // appropriate for it. |
| mStoppingActivities.remove(next); |
| mGoingToSleepActivities.remove(next); |
| next.sleeping = false; |
| mWaitingVisibleActivities.remove(next); |
| |
| if (DEBUG_SWITCH) Slog.v(TAG, "Resuming " + next); |
| |
| // If we are currently pausing an activity, then don't do anything |
| // until that is done. |
| if (mPausingActivity != null) { |
| if (DEBUG_SWITCH) Slog.v(TAG, "Skip resume: pausing=" + mPausingActivity); |
| return false; |
| } |
| |
| // Okay we are now going to start a switch, to 'next'. We may first |
| // have to pause the current activity, but this is an important point |
| // where we have decided to go to 'next' so keep track of that. |
| // XXX "App Redirected" dialog is getting too many false positives |
| // at this point, so turn off for now. |
| if (false) { |
| if (mLastStartedActivity != null && !mLastStartedActivity.finishing) { |
| long now = SystemClock.uptimeMillis(); |
| final boolean inTime = mLastStartedActivity.startTime != 0 |
| && (mLastStartedActivity.startTime + START_WARN_TIME) >= now; |
| final int lastUid = mLastStartedActivity.info.applicationInfo.uid; |
| final int nextUid = next.info.applicationInfo.uid; |
| if (inTime && lastUid != nextUid |
| && lastUid != next.launchedFromUid |
| && mService.checkPermission( |
| android.Manifest.permission.STOP_APP_SWITCHES, |
| -1, next.launchedFromUid) |
| != PackageManager.PERMISSION_GRANTED) { |
| mService.showLaunchWarningLocked(mLastStartedActivity, next); |
| } else { |
| next.startTime = now; |
| mLastStartedActivity = next; |
| } |
| } else { |
| next.startTime = SystemClock.uptimeMillis(); |
| mLastStartedActivity = next; |
| } |
| } |
| |
| // We need to start pausing the current activity so the top one |
| // can be resumed... |
| if (mResumedActivity != null) { |
| if (DEBUG_SWITCH) Slog.v(TAG, "Skip resume: need to start pausing"); |
| startPausingLocked(userLeaving, false); |
| return true; |
| } |
| |
| if (prev != null && prev != next) { |
| if (!prev.waitingVisible && next != null && !next.nowVisible) { |
| prev.waitingVisible = true; |
| mWaitingVisibleActivities.add(prev); |
| if (DEBUG_SWITCH) Slog.v( |
| TAG, "Resuming top, waiting visible to hide: " + prev); |
| } else { |
| // The next activity is already visible, so hide the previous |
| // activity's windows right now so we can show the new one ASAP. |
| // We only do this if the previous is finishing, which should mean |
| // it is on top of the one being resumed so hiding it quickly |
| // is good. Otherwise, we want to do the normal route of allowing |
| // the resumed activity to be shown so we can decide if the |
| // previous should actually be hidden depending on whether the |
| // new one is found to be full-screen or not. |
| if (prev.finishing) { |
| mService.mWindowManager.setAppVisibility(prev, false); |
| if (DEBUG_SWITCH) Slog.v(TAG, "Not waiting for visible to hide: " |
| + prev + ", waitingVisible=" |
| + (prev != null ? prev.waitingVisible : null) |
| + ", nowVisible=" + next.nowVisible); |
| } else { |
| if (DEBUG_SWITCH) Slog.v(TAG, "Previous already visible but still waiting to hide: " |
| + prev + ", waitingVisible=" |
| + (prev != null ? prev.waitingVisible : null) |
| + ", nowVisible=" + next.nowVisible); |
| } |
| } |
| } |
| |
| // Launching this app's activity, make sure the app is no longer |
| // considered stopped. |
| try { |
| AppGlobals.getPackageManager().setPackageStoppedState( |
| next.packageName, false); |
| } catch (RemoteException e1) { |
| } catch (IllegalArgumentException e) { |
| Slog.w(TAG, "Failed trying to unstop package " |
| + next.packageName + ": " + e); |
| } |
| |
| // We are starting up the next activity, so tell the window manager |
| // that the previous one will be hidden soon. This way it can know |
| // to ignore it when computing the desired screen orientation. |
| if (prev != null) { |
| if (prev.finishing) { |
| if (DEBUG_TRANSITION) Slog.v(TAG, |
| "Prepare close transition: prev=" + prev); |
| if (mNoAnimActivities.contains(prev)) { |
| mService.mWindowManager.prepareAppTransition( |
| WindowManagerPolicy.TRANSIT_NONE, false); |
| } else { |
| mService.mWindowManager.prepareAppTransition(prev.task == next.task |
| ? WindowManagerPolicy.TRANSIT_ACTIVITY_CLOSE |
| : WindowManagerPolicy.TRANSIT_TASK_CLOSE, false); |
| } |
| mService.mWindowManager.setAppWillBeHidden(prev); |
| mService.mWindowManager.setAppVisibility(prev, false); |
| } else { |
| if (DEBUG_TRANSITION) Slog.v(TAG, |
| "Prepare open transition: prev=" + prev); |
| if (mNoAnimActivities.contains(next)) { |
| mService.mWindowManager.prepareAppTransition( |
| WindowManagerPolicy.TRANSIT_NONE, false); |
| } else { |
| mService.mWindowManager.prepareAppTransition(prev.task == next.task |
| ? WindowManagerPolicy.TRANSIT_ACTIVITY_OPEN |
| : WindowManagerPolicy.TRANSIT_TASK_OPEN, false); |
| } |
| } |
| if (false) { |
| mService.mWindowManager.setAppWillBeHidden(prev); |
| mService.mWindowManager.setAppVisibility(prev, false); |
| } |
| } else if (mHistory.size() > 1) { |
| if (DEBUG_TRANSITION) Slog.v(TAG, |
| "Prepare open transition: no previous"); |
| if (mNoAnimActivities.contains(next)) { |
| mService.mWindowManager.prepareAppTransition( |
| WindowManagerPolicy.TRANSIT_NONE, false); |
| } else { |
| mService.mWindowManager.prepareAppTransition( |
| WindowManagerPolicy.TRANSIT_ACTIVITY_OPEN, false); |
| } |
| } |
| |
| if (next.app != null && next.app.thread != null) { |
| if (DEBUG_SWITCH) Slog.v(TAG, "Resume running: " + next); |
| |
| // This activity is now becoming visible. |
| mService.mWindowManager.setAppVisibility(next, true); |
| |
| ActivityRecord lastResumedActivity = mResumedActivity; |
| ActivityState lastState = next.state; |
| |
| mService.updateCpuStats(); |
| |
| next.state = ActivityState.RESUMED; |
| mResumedActivity = next; |
| next.task.touchActiveTime(); |
| if (mMainStack) { |
| mService.addRecentTaskLocked(next.task); |
| } |
| mService.updateLruProcessLocked(next.app, true, true); |
| updateLRUListLocked(next); |
| |
| // Have the window manager re-evaluate the orientation of |
| // the screen based on the new activity order. |
| boolean updated = false; |
| if (mMainStack) { |
| synchronized (mService) { |
| Configuration config = mService.mWindowManager.updateOrientationFromAppTokens( |
| mService.mConfiguration, |
| next.mayFreezeScreenLocked(next.app) ? next : null); |
| if (config != null) { |
| next.frozenBeforeDestroy = true; |
| } |
| updated = mService.updateConfigurationLocked(config, next); |
| } |
| } |
| if (!updated) { |
| // The configuration update wasn't able to keep the existing |
| // instance of the activity, and instead started a new one. |
| // We should be all done, but let's just make sure our activity |
| // is still at the top and schedule another run if something |
| // weird happened. |
| ActivityRecord nextNext = topRunningActivityLocked(null); |
| if (DEBUG_SWITCH) Slog.i(TAG, |
| "Activity config changed during resume: " + next |
| + ", new next: " + nextNext); |
| if (nextNext != next) { |
| // Do over! |
| mHandler.sendEmptyMessage(RESUME_TOP_ACTIVITY_MSG); |
| } |
| if (mMainStack) { |
| mService.setFocusedActivityLocked(next); |
| } |
| ensureActivitiesVisibleLocked(null, 0); |
| mService.mWindowManager.executeAppTransition(); |
| mNoAnimActivities.clear(); |
| return true; |
| } |
| |
| try { |
| // Deliver all pending results. |
| ArrayList a = next.results; |
| if (a != null) { |
| final int N = a.size(); |
| if (!next.finishing && N > 0) { |
| if (DEBUG_RESULTS) Slog.v( |
| TAG, "Delivering results to " + next |
| + ": " + a); |
| next.app.thread.scheduleSendResult(next, a); |
| } |
| } |
| |
| if (next.newIntents != null) { |
| next.app.thread.scheduleNewIntent(next.newIntents, next); |
| } |
| |
| EventLog.writeEvent(EventLogTags.AM_RESUME_ACTIVITY, |
| System.identityHashCode(next), |
| next.task.taskId, next.shortComponentName); |
| |
| next.sleeping = false; |
| showAskCompatModeDialogLocked(next); |
| next.app.thread.scheduleResumeActivity(next, |
| mService.isNextTransitionForward()); |
| |
| checkReadyForSleepLocked(); |
| |
| } catch (Exception e) { |
| // Whoops, need to restart this activity! |
| next.state = lastState; |
| mResumedActivity = lastResumedActivity; |
| Slog.i(TAG, "Restarting because process died: " + next); |
| if (!next.hasBeenLaunched) { |
| next.hasBeenLaunched = true; |
| } else { |
| if (SHOW_APP_STARTING_PREVIEW && mMainStack) { |
| mService.mWindowManager.setAppStartingWindow( |
| next, next.packageName, next.theme, |
| next.nonLocalizedLabel, |
| next.labelRes, next.icon, next.windowFlags, |
| null, true); |
| } |
| } |
| startSpecificActivityLocked(next, true, false); |
| return true; |
| } |
| |
| // From this point on, if something goes wrong there is no way |
| // to recover the activity. |
| try { |
| next.visible = true; |
| completeResumeLocked(next); |
| } catch (Exception e) { |
| // If any exception gets thrown, toss away this |
| // activity and try the next one. |
| Slog.w(TAG, "Exception thrown during resume of " + next, e); |
| requestFinishActivityLocked(next, Activity.RESULT_CANCELED, null, |
| "resume-exception"); |
| return true; |
| } |
| |
| // Didn't need to use the icicle, and it is now out of date. |
| next.icicle = null; |
| next.haveState = false; |
| next.stopped = false; |
| |
| } else { |
| // Whoops, need to restart this activity! |
| if (!next.hasBeenLaunched) { |
| next.hasBeenLaunched = true; |
| } else { |
| if (SHOW_APP_STARTING_PREVIEW) { |
| mService.mWindowManager.setAppStartingWindow( |
| next, next.packageName, next.theme, |
| next.nonLocalizedLabel, |
| next.labelRes, next.icon, next.windowFlags, |
| null, true); |
| } |
| if (DEBUG_SWITCH) Slog.v(TAG, "Restarting: " + next); |
| } |
| startSpecificActivityLocked(next, true, true); |
| } |
| |
| return true; |
| } |
| |
| private final void startActivityLocked(ActivityRecord r, boolean newTask, |
| boolean doResume, boolean keepCurTransition) { |
| final int NH = mHistory.size(); |
| |
| int addPos = -1; |
| |
| if (!newTask) { |
| // If starting in an existing task, find where that is... |
| boolean startIt = true; |
| for (int i = NH-1; i >= 0; i--) { |
| ActivityRecord p = (ActivityRecord)mHistory.get(i); |
| if (p.finishing) { |
| continue; |
| } |
| if (p.task == r.task) { |
| // Here it is! Now, if this is not yet visible to the |
| // user, then just add it without starting; it will |
| // get started when the user navigates back to it. |
| addPos = i+1; |
| if (!startIt) { |
| mHistory.add(addPos, r); |
| r.inHistory = true; |
| r.task.numActivities++; |
| mService.mWindowManager.addAppToken(addPos, r, r.task.taskId, |
| r.info.screenOrientation, r.fullscreen); |
| if (VALIDATE_TOKENS) { |
| mService.mWindowManager.validateAppTokens(mHistory); |
| } |
| return; |
| } |
| break; |
| } |
| if (p.fullscreen) { |
| startIt = false; |
| } |
| } |
| } |
| |
| // Place a new activity at top of stack, so it is next to interact |
| // with the user. |
| if (addPos < 0) { |
| addPos = NH; |
| } |
| |
| // If we are not placing the new activity frontmost, we do not want |
| // to deliver the onUserLeaving callback to the actual frontmost |
| // activity |
| if (addPos < NH) { |
| mUserLeaving = false; |
| if (DEBUG_USER_LEAVING) Slog.v(TAG, "startActivity() behind front, mUserLeaving=false"); |
| } |
| |
| // Slot the activity into the history stack and proceed |
| mHistory.add(addPos, r); |
| r.inHistory = true; |
| r.frontOfTask = newTask; |
| r.task.numActivities++; |
| if (NH > 0) { |
| // We want to show the starting preview window if we are |
| // switching to a new task, or the next activity's process is |
| // not currently running. |
| boolean showStartingIcon = newTask; |
| ProcessRecord proc = r.app; |
| if (proc == null) { |
| proc = mService.mProcessNames.get(r.processName, r.info.applicationInfo.uid); |
| } |
| if (proc == null || proc.thread == null) { |
| showStartingIcon = true; |
| } |
| if (DEBUG_TRANSITION) Slog.v(TAG, |
| "Prepare open transition: starting " + r); |
| if ((r.intent.getFlags()&Intent.FLAG_ACTIVITY_NO_ANIMATION) != 0) { |
| mService.mWindowManager.prepareAppTransition( |
| WindowManagerPolicy.TRANSIT_NONE, keepCurTransition); |
| mNoAnimActivities.add(r); |
| } else if ((r.intent.getFlags()&Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET) != 0) { |
| mService.mWindowManager.prepareAppTransition( |
| WindowManagerPolicy.TRANSIT_TASK_OPEN, keepCurTransition); |
| mNoAnimActivities.remove(r); |
| } else { |
| mService.mWindowManager.prepareAppTransition(newTask |
| ? WindowManagerPolicy.TRANSIT_TASK_OPEN |
| : WindowManagerPolicy.TRANSIT_ACTIVITY_OPEN, keepCurTransition); |
| mNoAnimActivities.remove(r); |
| } |
| mService.mWindowManager.addAppToken( |
| addPos, r, r.task.taskId, r.info.screenOrientation, r.fullscreen); |
| boolean doShow = true; |
| if (newTask) { |
| // Even though this activity is starting fresh, we still need |
| // to reset it to make sure we apply affinities to move any |
| // existing activities from other tasks in to it. |
| // If the caller has requested that the target task be |
| // reset, then do so. |
| if ((r.intent.getFlags() |
| &Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED) != 0) { |
| resetTaskIfNeededLocked(r, r); |
| doShow = topRunningNonDelayedActivityLocked(null) == r; |
| } |
| } |
| if (SHOW_APP_STARTING_PREVIEW && doShow) { |
| // Figure out if we are transitioning from another activity that is |
| // "has the same starting icon" as the next one. This allows the |
| // window manager to keep the previous window it had previously |
| // created, if it still had one. |
| ActivityRecord prev = mResumedActivity; |
| if (prev != null) { |
| // We don't want to reuse the previous starting preview if: |
| // (1) The current activity is in a different task. |
| if (prev.task != r.task) prev = null; |
| // (2) The current activity is already displayed. |
| else if (prev.nowVisible) prev = null; |
| } |
| mService.mWindowManager.setAppStartingWindow( |
| r, r.packageName, r.theme, r.nonLocalizedLabel, |
| r.labelRes, r.icon, r.windowFlags, prev, showStartingIcon); |
| } |
| } else { |
| // If this is the first activity, don't do any fancy animations, |
| // because there is nothing for it to animate on top of. |
| mService.mWindowManager.addAppToken(addPos, r, r.task.taskId, |
| r.info.screenOrientation, r.fullscreen); |
| } |
| if (VALIDATE_TOKENS) { |
| mService.mWindowManager.validateAppTokens(mHistory); |
| } |
| |
| if (doResume) { |
| resumeTopActivityLocked(null); |
| } |
| } |
| |
| /** |
| * Perform a reset of the given task, if needed as part of launching it. |
| * Returns the new HistoryRecord at the top of the task. |
| */ |
| private final ActivityRecord resetTaskIfNeededLocked(ActivityRecord taskTop, |
| ActivityRecord newActivity) { |
| boolean forceReset = (newActivity.info.flags |
| &ActivityInfo.FLAG_CLEAR_TASK_ON_LAUNCH) != 0; |
| if (ACTIVITY_INACTIVE_RESET_TIME > 0 |
| && taskTop.task.getInactiveDuration() > ACTIVITY_INACTIVE_RESET_TIME) { |
| if ((newActivity.info.flags |
| &ActivityInfo.FLAG_ALWAYS_RETAIN_TASK_STATE) == 0) { |
| forceReset = true; |
| } |
| } |
| |
| final TaskRecord task = taskTop.task; |
| |
| // We are going to move through the history list so that we can look |
| // at each activity 'target' with 'below' either the interesting |
| // activity immediately below it in the stack or null. |
| ActivityRecord target = null; |
| int targetI = 0; |
| int taskTopI = -1; |
| int replyChainEnd = -1; |
| int lastReparentPos = -1; |
| for (int i=mHistory.size()-1; i>=-1; i--) { |
| ActivityRecord below = i >= 0 ? (ActivityRecord)mHistory.get(i) : null; |
| |
| if (below != null && below.finishing) { |
| continue; |
| } |
| if (target == null) { |
| target = below; |
| targetI = i; |
| // If we were in the middle of a reply chain before this |
| // task, it doesn't appear like the root of the chain wants |
| // anything interesting, so drop it. |
| replyChainEnd = -1; |
| continue; |
| } |
| |
| final int flags = target.info.flags; |
| |
| final boolean finishOnTaskLaunch = |
| (flags&ActivityInfo.FLAG_FINISH_ON_TASK_LAUNCH) != 0; |
| final boolean allowTaskReparenting = |
| (flags&ActivityInfo.FLAG_ALLOW_TASK_REPARENTING) != 0; |
| |
| if (target.task == task) { |
| // We are inside of the task being reset... we'll either |
| // finish this activity, push it out for another task, |
| // or leave it as-is. We only do this |
| // for activities that are not the root of the task (since |
| // if we finish the root, we may no longer have the task!). |
| if (taskTopI < 0) { |
| taskTopI = targetI; |
| } |
| if (below != null && below.task == task) { |
| final boolean clearWhenTaskReset = |
| (target.intent.getFlags() |
| &Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET) != 0; |
| if (!finishOnTaskLaunch && !clearWhenTaskReset && target.resultTo != null) { |
| // If this activity is sending a reply to a previous |
| // activity, we can't do anything with it now until |
| // we reach the start of the reply chain. |
| // XXX note that we are assuming the result is always |
| // to the previous activity, which is almost always |
| // the case but we really shouldn't count on. |
| if (replyChainEnd < 0) { |
| replyChainEnd = targetI; |
| } |
| } else if (!finishOnTaskLaunch && !clearWhenTaskReset && allowTaskReparenting |
| && target.taskAffinity != null |
| && !target.taskAffinity.equals(task.affinity)) { |
| // If this activity has an affinity for another |
| // task, then we need to move it out of here. We will |
| // move it as far out of the way as possible, to the |
| // bottom of the activity stack. This also keeps it |
| // correctly ordered with any activities we previously |
| // moved. |
| ActivityRecord p = (ActivityRecord)mHistory.get(0); |
| if (target.taskAffinity != null |
| && target.taskAffinity.equals(p.task.affinity)) { |
| // If the activity currently at the bottom has the |
| // same task affinity as the one we are moving, |
| // then merge it into the same task. |
| target.task = p.task; |
| if (DEBUG_TASKS) Slog.v(TAG, "Start pushing activity " + target |
| + " out to bottom task " + p.task); |
| } else { |
| mService.mCurTask++; |
| if (mService.mCurTask <= 0) { |
| mService.mCurTask = 1; |
| } |
| target.task = new TaskRecord(mService.mCurTask, target.info, null); |
| target.task.affinityIntent = target.intent; |
| if (DEBUG_TASKS) Slog.v(TAG, "Start pushing activity " + target |
| + " out to new task " + target.task); |
| } |
| mService.mWindowManager.setAppGroupId(target, task.taskId); |
| if (replyChainEnd < 0) { |
| replyChainEnd = targetI; |
| } |
| int dstPos = 0; |
| for (int srcPos=targetI; srcPos<=replyChainEnd; srcPos++) { |
| p = (ActivityRecord)mHistory.get(srcPos); |
| if (p.finishing) { |
| continue; |
| } |
| if (DEBUG_TASKS) Slog.v(TAG, "Pushing next activity " + p |
| + " out to target's task " + target.task); |
| task.numActivities--; |
| p.task = target.task; |
| target.task.numActivities++; |
| mHistory.remove(srcPos); |
| mHistory.add(dstPos, p); |
| mService.mWindowManager.moveAppToken(dstPos, p); |
| mService.mWindowManager.setAppGroupId(p, p.task.taskId); |
| dstPos++; |
| if (VALIDATE_TOKENS) { |
| mService.mWindowManager.validateAppTokens(mHistory); |
| } |
| i++; |
| } |
| if (taskTop == p) { |
| taskTop = below; |
| } |
| if (taskTopI == replyChainEnd) { |
| taskTopI = -1; |
| } |
| replyChainEnd = -1; |
| } else if (forceReset || finishOnTaskLaunch |
| || clearWhenTaskReset) { |
| // If the activity should just be removed -- either |
| // because it asks for it, or the task should be |
| // cleared -- then finish it and anything that is |
| // part of its reply chain. |
| if (clearWhenTaskReset) { |
| // In this case, we want to finish this activity |
| // and everything above it, so be sneaky and pretend |
| // like these are all in the reply chain. |
| replyChainEnd = targetI+1; |
| while (replyChainEnd < mHistory.size() && |
| ((ActivityRecord)mHistory.get( |
| replyChainEnd)).task == task) { |
| replyChainEnd++; |
| } |
| replyChainEnd--; |
| } else if (replyChainEnd < 0) { |
| replyChainEnd = targetI; |
| } |
| ActivityRecord p = null; |
| for (int srcPos=targetI; srcPos<=replyChainEnd; srcPos++) { |
| p = (ActivityRecord)mHistory.get(srcPos); |
| if (p.finishing) { |
| continue; |
| } |
| if (finishActivityLocked(p, srcPos, |
| Activity.RESULT_CANCELED, null, "reset")) { |
| replyChainEnd--; |
| srcPos--; |
| } |
| } |
| if (taskTop == p) { |
| taskTop = below; |
| } |
| if (taskTopI == replyChainEnd) { |
| taskTopI = -1; |
| } |
| replyChainEnd = -1; |
| } else { |
| // If we were in the middle of a chain, well the |
| // activity that started it all doesn't want anything |
| // special, so leave it all as-is. |
| replyChainEnd = -1; |
| } |
| } else { |
| // Reached the bottom of the task -- any reply chain |
| // should be left as-is. |
| replyChainEnd = -1; |
| } |
| |
| } else if (target.resultTo != null) { |
| // If this activity is sending a reply to a previous |
| // activity, we can't do anything with it now until |
| // we reach the start of the reply chain. |
| // XXX note that we are assuming the result is always |
| // to the previous activity, which is almost always |
| // the case but we really shouldn't count on. |
| if (replyChainEnd < 0) { |
| replyChainEnd = targetI; |
| } |
| |
| } else if (taskTopI >= 0 && allowTaskReparenting |
| && task.affinity != null |
| && task.affinity.equals(target.taskAffinity)) { |
| // We are inside of another task... if this activity has |
| // an affinity for our task, then either remove it if we are |
| // clearing or move it over to our task. Note that |
| // we currently punt on the case where we are resetting a |
| // task that is not at the top but who has activities above |
| // with an affinity to it... this is really not a normal |
| // case, and we will need to later pull that task to the front |
| // and usually at that point we will do the reset and pick |
| // up those remaining activities. (This only happens if |
| // someone starts an activity in a new task from an activity |
| // in a task that is not currently on top.) |
| if (forceReset || finishOnTaskLaunch) { |
| if (replyChainEnd < 0) { |
| replyChainEnd = targetI; |
| } |
| ActivityRecord p = null; |
| for (int srcPos=targetI; srcPos<=replyChainEnd; srcPos++) { |
| p = (ActivityRecord)mHistory.get(srcPos); |
| if (p.finishing) { |
| continue; |
| } |
| if (finishActivityLocked(p, srcPos, |
| Activity.RESULT_CANCELED, null, "reset")) { |
| taskTopI--; |
| lastReparentPos--; |
| replyChainEnd--; |
| srcPos--; |
| } |
| } |
| replyChainEnd = -1; |
| } else { |
| if (replyChainEnd < 0) { |
| replyChainEnd = targetI; |
| } |
| for (int srcPos=replyChainEnd; srcPos>=targetI; srcPos--) { |
| ActivityRecord p = (ActivityRecord)mHistory.get(srcPos); |
| if (p.finishing) { |
| continue; |
| } |
| if (lastReparentPos < 0) { |
| lastReparentPos = taskTopI; |
| taskTop = p; |
| } else { |
| lastReparentPos--; |
| } |
| mHistory.remove(srcPos); |
| p.task.numActivities--; |
| p.task = task; |
| mHistory.add(lastReparentPos, p); |
| if (DEBUG_TASKS) Slog.v(TAG, "Pulling activity " + p |
| + " in to resetting task " + task); |
| task.numActivities++; |
| mService.mWindowManager.moveAppToken(lastReparentPos, p); |
| mService.mWindowManager.setAppGroupId(p, p.task.taskId); |
| if (VALIDATE_TOKENS) { |
| mService.mWindowManager.validateAppTokens(mHistory); |
| } |
| } |
| replyChainEnd = -1; |
| |
| // Now we've moved it in to place... but what if this is |
| // a singleTop activity and we have put it on top of another |
| // instance of the same activity? Then we drop the instance |
| // below so it remains singleTop. |
| if (target.info.launchMode == ActivityInfo.LAUNCH_SINGLE_TOP) { |
| for (int j=lastReparentPos-1; j>=0; j--) { |
| ActivityRecord p = (ActivityRecord)mHistory.get(j); |
| if (p.finishing) { |
| continue; |
| } |
| if (p.intent.getComponent().equals(target.intent.getComponent())) { |
| if (finishActivityLocked(p, j, |
| Activity.RESULT_CANCELED, null, "replace")) { |
| taskTopI--; |
| lastReparentPos--; |
| } |
| } |
| } |
| } |
| } |
| } |
| |
| target = below; |
| targetI = i; |
| } |
| |
| return taskTop; |
| } |
| |
| /** |
| * Perform clear operation as requested by |
| * {@link Intent#FLAG_ACTIVITY_CLEAR_TOP}: search from the top of the |
| * stack to the given task, then look for |
| * an instance of that activity in the stack and, if found, finish all |
| * activities on top of it and return the instance. |
| * |
| * @param newR Description of the new activity being started. |
| * @return Returns the old activity that should be continued to be used, |
| * or null if none was found. |
| */ |
| private final ActivityRecord performClearTaskLocked(int taskId, |
| ActivityRecord newR, int launchFlags) { |
| int i = mHistory.size(); |
| |
| // First find the requested task. |
| while (i > 0) { |
| i--; |
| ActivityRecord r = (ActivityRecord)mHistory.get(i); |
| if (r.task.taskId == taskId) { |
| i++; |
| break; |
| } |
| } |
| |
| // Now clear it. |
| while (i > 0) { |
| i--; |
| ActivityRecord r = (ActivityRecord)mHistory.get(i); |
| if (r.finishing) { |
| continue; |
| } |
| if (r.task.taskId != taskId) { |
| return null; |
| } |
| if (r.realActivity.equals(newR.realActivity)) { |
| // Here it is! Now finish everything in front... |
| ActivityRecord ret = r; |
| while (i < (mHistory.size()-1)) { |
| i++; |
| r = (ActivityRecord)mHistory.get(i); |
| if (r.task.taskId != taskId) { |
| break; |
| } |
| if (r.finishing) { |
| continue; |
| } |
| if (finishActivityLocked(r, i, Activity.RESULT_CANCELED, |
| null, "clear")) { |
| i--; |
| } |
| } |
| |
| // Finally, if this is a normal launch mode (that is, not |
| // expecting onNewIntent()), then we will finish the current |
| // instance of the activity so a new fresh one can be started. |
| if (ret.launchMode == ActivityInfo.LAUNCH_MULTIPLE |
| && (launchFlags&Intent.FLAG_ACTIVITY_SINGLE_TOP) == 0) { |
| if (!ret.finishing) { |
| int index = indexOfTokenLocked(ret); |
| if (index >= 0) { |
| finishActivityLocked(ret, index, Activity.RESULT_CANCELED, |
| null, "clear"); |
| } |
| return null; |
| } |
| } |
| |
| return ret; |
| } |
| } |
| |
| return null; |
| } |
| |
| /** |
| * Completely remove all activities associated with an existing task. |
| */ |
| private final void performClearTaskLocked(int taskId) { |
| int i = mHistory.size(); |
| |
| // First find the requested task. |
| while (i > 0) { |
| i--; |
| ActivityRecord r = (ActivityRecord)mHistory.get(i); |
| if (r.task.taskId == taskId) { |
| i++; |
| break; |
| } |
| } |
| |
| // Now clear it. |
| while (i > 0) { |
| i--; |
| ActivityRecord r = (ActivityRecord)mHistory.get(i); |
| if (r.finishing) { |
| continue; |
| } |
| if (r.task.taskId != taskId) { |
| // We hit the bottom. Now finish it all... |
| while (i < (mHistory.size()-1)) { |
| i++; |
| r = (ActivityRecord)mHistory.get(i); |
| if (r.task.taskId != taskId) { |
| // Whoops hit the end. |
| return; |
| } |
| if (r.finishing) { |
| continue; |
| } |
| if (finishActivityLocked(r, i, Activity.RESULT_CANCELED, |
| null, "clear")) { |
| i--; |
| } |
| } |
| return; |
| } |
| } |
| } |
| |
| /** |
| * Find the activity in the history stack within the given task. Returns |
| * the index within the history at which it's found, or < 0 if not found. |
| */ |
| private final int findActivityInHistoryLocked(ActivityRecord r, int task) { |
| int i = mHistory.size(); |
| while (i > 0) { |
| i--; |
| ActivityRecord candidate = (ActivityRecord)mHistory.get(i); |
| if (candidate.task.taskId != task) { |
| break; |
| } |
| if (candidate.realActivity.equals(r.realActivity)) { |
| return i; |
| } |
| } |
| |
| return -1; |
| } |
| |
| /** |
| * Reorder the history stack so that the activity at the given index is |
| * brought to the front. |
| */ |
| private final ActivityRecord moveActivityToFrontLocked(int where) { |
| ActivityRecord newTop = (ActivityRecord)mHistory.remove(where); |
| int top = mHistory.size(); |
| ActivityRecord oldTop = (ActivityRecord)mHistory.get(top-1); |
| mHistory.add(top, newTop); |
| oldTop.frontOfTask = false; |
| newTop.frontOfTask = true; |
| return newTop; |
| } |
| |
| final int startActivityLocked(IApplicationThread caller, |
| Intent intent, String resolvedType, |
| Uri[] grantedUriPermissions, |
| int grantedMode, ActivityInfo aInfo, IBinder resultTo, |
| String resultWho, int requestCode, |
| int callingPid, int callingUid, boolean onlyIfNeeded, |
| boolean componentSpecified, ActivityRecord[] outActivity) { |
| |
| int err = START_SUCCESS; |
| |
| ProcessRecord callerApp = null; |
| if (caller != null) { |
| callerApp = mService.getRecordForAppLocked(caller); |
| if (callerApp != null) { |
| callingPid = callerApp.pid; |
| callingUid = callerApp.info.uid; |
| } else { |
| Slog.w(TAG, "Unable to find app for caller " + caller |
| + " (pid=" + callingPid + ") when starting: " |
| + intent.toString()); |
| err = START_PERMISSION_DENIED; |
| } |
| } |
| |
| if (err == START_SUCCESS) { |
| Slog.i(TAG, "Starting: " + intent + " from pid " |
| + (callerApp != null ? callerApp.pid : callingPid)); |
| } |
| |
| ActivityRecord sourceRecord = null; |
| ActivityRecord resultRecord = null; |
| if (resultTo != null) { |
| int index = indexOfTokenLocked(resultTo); |
| if (DEBUG_RESULTS) Slog.v( |
| TAG, "Sending result to " + resultTo + " (index " + index + ")"); |
| if (index >= 0) { |
| sourceRecord = (ActivityRecord)mHistory.get(index); |
| if (requestCode >= 0 && !sourceRecord.finishing) { |
| resultRecord = sourceRecord; |
| } |
| } |
| } |
| |
| int launchFlags = intent.getFlags(); |
| |
| if ((launchFlags&Intent.FLAG_ACTIVITY_FORWARD_RESULT) != 0 |
| && sourceRecord != null) { |
| // Transfer the result target from the source activity to the new |
| // one being started, including any failures. |
| if (requestCode >= 0) { |
| return START_FORWARD_AND_REQUEST_CONFLICT; |
| } |
| resultRecord = sourceRecord.resultTo; |
| resultWho = sourceRecord.resultWho; |
| requestCode = sourceRecord.requestCode; |
| sourceRecord.resultTo = null; |
| if (resultRecord != null) { |
| resultRecord.removeResultsLocked( |
| sourceRecord, resultWho, requestCode); |
| } |
| } |
| |
| if (err == START_SUCCESS && intent.getComponent() == null) { |
| // We couldn't find a class that can handle the given Intent. |
| // That's the end of that! |
| err = START_INTENT_NOT_RESOLVED; |
| } |
| |
| if (err == START_SUCCESS && aInfo == null) { |
| // We couldn't find the specific class specified in the Intent. |
| // Also the end of the line. |
| err = START_CLASS_NOT_FOUND; |
| } |
| |
| if (err != START_SUCCESS) { |
| if (resultRecord != null) { |
| sendActivityResultLocked(-1, |
| resultRecord, resultWho, requestCode, |
| Activity.RESULT_CANCELED, null); |
| } |
| return err; |
| } |
| |
| final int perm = mService.checkComponentPermission(aInfo.permission, callingPid, |
| callingUid, aInfo.applicationInfo.uid, aInfo.exported); |
| if (perm != PackageManager.PERMISSION_GRANTED) { |
| if (resultRecord != null) { |
| sendActivityResultLocked(-1, |
| resultRecord, resultWho, requestCode, |
| Activity.RESULT_CANCELED, null); |
| } |
| String msg; |
| if (!aInfo.exported) { |
| msg = "Permission Denial: starting " + intent.toString() |
| + " from " + callerApp + " (pid=" + callingPid |
| + ", uid=" + callingUid + ")" |
| + " not exported from uid " + aInfo.applicationInfo.uid; |
| } else { |
| msg = "Permission Denial: starting " + intent.toString() |
| + " from " + callerApp + " (pid=" + callingPid |
| + ", uid=" + callingUid + ")" |
| + " requires " + aInfo.permission; |
| } |
| Slog.w(TAG, msg); |
| throw new SecurityException(msg); |
| } |
| |
| if (mMainStack) { |
| if (mService.mController != null) { |
| boolean abort = false; |
| try { |
| // The Intent we give to the watcher has the extra data |
| // stripped off, since it can contain private information. |
| Intent watchIntent = intent.cloneFilter(); |
| abort = !mService.mController.activityStarting(watchIntent, |
| aInfo.applicationInfo.packageName); |
| } catch (RemoteException e) { |
| mService.mController = null; |
| } |
| |
| if (abort) { |
| if (resultRecord != null) { |
| sendActivityResultLocked(-1, |
| resultRecord, resultWho, requestCode, |
| Activity.RESULT_CANCELED, null); |
| } |
| // We pretend to the caller that it was really started, but |
| // they will just get a cancel result. |
| return START_SUCCESS; |
| } |
| } |
| } |
| |
| ActivityRecord r = new ActivityRecord(mService, this, callerApp, callingUid, |
| intent, resolvedType, aInfo, mService.mConfiguration, |
| resultRecord, resultWho, requestCode, componentSpecified); |
| if (outActivity != null) { |
| outActivity[0] = r; |
| } |
| |
| if (mMainStack) { |
| if (mResumedActivity == null |
| || mResumedActivity.info.applicationInfo.uid != callingUid) { |
| if (!mService.checkAppSwitchAllowedLocked(callingPid, callingUid, "Activity start")) { |
| PendingActivityLaunch pal = new PendingActivityLaunch(); |
| pal.r = r; |
| pal.sourceRecord = sourceRecord; |
| pal.grantedUriPermissions = grantedUriPermissions; |
| pal.grantedMode = grantedMode; |
| pal.onlyIfNeeded = onlyIfNeeded; |
| mService.mPendingActivityLaunches.add(pal); |
| return START_SWITCHES_CANCELED; |
| } |
| } |
| |
| if (mService.mDidAppSwitch) { |
| // This is the second allowed switch since we stopped switches, |
| // so now just generally allow switches. Use case: user presses |
| // home (switches disabled, switch to home, mDidAppSwitch now true); |
| // user taps a home icon (coming from home so allowed, we hit here |
| // and now allow anyone to switch again). |
| mService.mAppSwitchesAllowedTime = 0; |
| } else { |
| mService.mDidAppSwitch = true; |
| } |
| |
| mService.doPendingActivityLaunchesLocked(false); |
| } |
| |
| return startActivityUncheckedLocked(r, sourceRecord, |
| grantedUriPermissions, grantedMode, onlyIfNeeded, true); |
| } |
| |
| final void moveHomeToFrontFromLaunchLocked(int launchFlags) { |
| if ((launchFlags & |
| (Intent.FLAG_ACTIVITY_NEW_TASK|Intent.FLAG_ACTIVITY_TASK_ON_HOME)) |
| == (Intent.FLAG_ACTIVITY_NEW_TASK|Intent.FLAG_ACTIVITY_TASK_ON_HOME)) { |
| // Caller wants to appear on home activity, so before starting |
| // their own activity we will bring home to the front. |
| moveHomeToFrontLocked(); |
| } |
| } |
| |
| final int startActivityUncheckedLocked(ActivityRecord r, |
| ActivityRecord sourceRecord, Uri[] grantedUriPermissions, |
| int grantedMode, boolean onlyIfNeeded, boolean doResume) { |
| final Intent intent = r.intent; |
| final int callingUid = r.launchedFromUid; |
| |
| int launchFlags = intent.getFlags(); |
| |
| // We'll invoke onUserLeaving before onPause only if the launching |
| // activity did not explicitly state that this is an automated launch. |
| mUserLeaving = (launchFlags&Intent.FLAG_ACTIVITY_NO_USER_ACTION) == 0; |
| if (DEBUG_USER_LEAVING) Slog.v(TAG, |
| "startActivity() => mUserLeaving=" + mUserLeaving); |
| |
| // If the caller has asked not to resume at this point, we make note |
| // of this in the record so that we can skip it when trying to find |
| // the top running activity. |
| if (!doResume) { |
| r.delayedResume = true; |
| } |
| |
| ActivityRecord notTop = (launchFlags&Intent.FLAG_ACTIVITY_PREVIOUS_IS_TOP) |
| != 0 ? r : null; |
| |
| // If the onlyIfNeeded flag is set, then we can do this if the activity |
| // being launched is the same as the one making the call... or, as |
| // a special case, if we do not know the caller then we count the |
| // current top activity as the caller. |
| if (onlyIfNeeded) { |
| ActivityRecord checkedCaller = sourceRecord; |
| if (checkedCaller == null) { |
| checkedCaller = topRunningNonDelayedActivityLocked(notTop); |
| } |
| if (!checkedCaller.realActivity.equals(r.realActivity)) { |
| // Caller is not the same as launcher, so always needed. |
| onlyIfNeeded = false; |
| } |
| } |
| |
| if (sourceRecord == null) { |
| // This activity is not being started from another... in this |
| // case we -always- start a new task. |
| if ((launchFlags&Intent.FLAG_ACTIVITY_NEW_TASK) == 0) { |
| Slog.w(TAG, "startActivity called from non-Activity context; forcing Intent.FLAG_ACTIVITY_NEW_TASK for: " |
| + intent); |
| launchFlags |= Intent.FLAG_ACTIVITY_NEW_TASK; |
| } |
| } else if (sourceRecord.launchMode == ActivityInfo.LAUNCH_SINGLE_INSTANCE) { |
| // The original activity who is starting us is running as a single |
| // instance... this new activity it is starting must go on its |
| // own task. |
| launchFlags |= Intent.FLAG_ACTIVITY_NEW_TASK; |
| } else if (r.launchMode == ActivityInfo.LAUNCH_SINGLE_INSTANCE |
| || r.launchMode == ActivityInfo.LAUNCH_SINGLE_TASK) { |
| // The activity being started is a single instance... it always |
| // gets launched into its own task. |
| launchFlags |= Intent.FLAG_ACTIVITY_NEW_TASK; |
| } |
| |
| if (r.resultTo != null && (launchFlags&Intent.FLAG_ACTIVITY_NEW_TASK) != 0) { |
| // For whatever reason this activity is being launched into a new |
| // task... yet the caller has requested a result back. Well, that |
| // is pretty messed up, so instead immediately send back a cancel |
| // and let the new task continue launched as normal without a |
| // dependency on its originator. |
| Slog.w(TAG, "Activity is launching as a new task, so cancelling activity result."); |
| sendActivityResultLocked(-1, |
| r.resultTo, r.resultWho, r.requestCode, |
| Activity.RESULT_CANCELED, null); |
| r.resultTo = null; |
| } |
| |
| boolean addingToTask = false; |
| TaskRecord reuseTask = null; |
| if (((launchFlags&Intent.FLAG_ACTIVITY_NEW_TASK) != 0 && |
| (launchFlags&Intent.FLAG_ACTIVITY_MULTIPLE_TASK) == 0) |
| || r.launchMode == ActivityInfo.LAUNCH_SINGLE_TASK |
| || r.launchMode == ActivityInfo.LAUNCH_SINGLE_INSTANCE) { |
| // If bring to front is requested, and no result is requested, and |
| // we can find a task that was started with this same |
| // component, then instead of launching bring that one to the front. |
| if (r.resultTo == null) { |
| // See if there is a task to bring to the front. If this is |
| // a SINGLE_INSTANCE activity, there can be one and only one |
| // instance of it in the history, and it is always in its own |
| // unique task, so we do a special search. |
| ActivityRecord taskTop = r.launchMode != ActivityInfo.LAUNCH_SINGLE_INSTANCE |
| ? findTaskLocked(intent, r.info) |
| : findActivityLocked(intent, r.info); |
| if (taskTop != null) { |
| if (taskTop.task.intent == null) { |
| // This task was started because of movement of |
| // the activity based on affinity... now that we |
| // are actually launching it, we can assign the |
| // base intent. |
| taskTop.task.setIntent(intent, r.info); |
| } |
| // If the target task is not in the front, then we need |
| // to bring it to the front... except... well, with |
| // SINGLE_TASK_LAUNCH it's not entirely clear. We'd like |
| // to have the same behavior as if a new instance was |
| // being started, which means not bringing it to the front |
| // if the caller is not itself in the front. |
| ActivityRecord curTop = topRunningNonDelayedActivityLocked(notTop); |
| if (curTop != null && curTop.task != taskTop.task) { |
| r.intent.addFlags(Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT); |
| boolean callerAtFront = sourceRecord == null |
| || curTop.task == sourceRecord.task; |
| if (callerAtFront) { |
| // We really do want to push this one into the |
| // user's face, right now. |
| moveHomeToFrontFromLaunchLocked(launchFlags); |
| moveTaskToFrontLocked(taskTop.task, r); |
| } |
| } |
| // If the caller has requested that the target task be |
| // reset, then do so. |
| if ((launchFlags&Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED) != 0) { |
| taskTop = resetTaskIfNeededLocked(taskTop, r); |
| } |
| if (onlyIfNeeded) { |
| // We don't need to start a new activity, and |
| // the client said not to do anything if that |
| // is the case, so this is it! And for paranoia, make |
| // sure we have correctly resumed the top activity. |
| if (doResume) { |
| resumeTopActivityLocked(null); |
| } |
| return START_RETURN_INTENT_TO_CALLER; |
| } |
| if ((launchFlags & |
| (Intent.FLAG_ACTIVITY_NEW_TASK|Intent.FLAG_ACTIVITY_CLEAR_TASK)) |
| == (Intent.FLAG_ACTIVITY_NEW_TASK|Intent.FLAG_ACTIVITY_CLEAR_TASK)) { |
| // The caller has requested to completely replace any |
| // existing task with its new activity. Well that should |
| // not be too hard... |
| reuseTask = taskTop.task; |
| performClearTaskLocked(taskTop.task.taskId); |
| reuseTask.setIntent(r.intent, r.info); |
| } else if ((launchFlags&Intent.FLAG_ACTIVITY_CLEAR_TOP) != 0 |
| || r.launchMode == ActivityInfo.LAUNCH_SINGLE_TASK |
| || r.launchMode == ActivityInfo.LAUNCH_SINGLE_INSTANCE) { |
| // In this situation we want to remove all activities |
| // from the task up to the one being started. In most |
| // cases this means we are resetting the task to its |
| // initial state. |
| ActivityRecord top = performClearTaskLocked( |
| taskTop.task.taskId, r, launchFlags); |
| if (top != null) { |
| if (top.frontOfTask) { |
| // Activity aliases may mean we use different |
| // intents for the top activity, so make sure |
| // the task now has the identity of the new |
| // intent. |
| top.task.setIntent(r.intent, r.info); |
| } |
| logStartActivity(EventLogTags.AM_NEW_INTENT, r, top.task); |
| top.deliverNewIntentLocked(callingUid, r.intent); |
| } else { |
| // A special case: we need to |
| // start the activity because it is not currently |
| // running, and the caller has asked to clear the |
| // current task to have this activity at the top. |
| addingToTask = true; |
| // Now pretend like this activity is being started |
| // by the top of its task, so it is put in the |
| // right place. |
| sourceRecord = taskTop; |
| } |
| } else if (r.realActivity.equals(taskTop.task.realActivity)) { |
| // In this case the top activity on the task is the |
| // same as the one being launched, so we take that |
| // as a request to bring the task to the foreground. |
| // If the top activity in the task is the root |
| // activity, deliver this new intent to it if it |
| // desires. |
| if ((launchFlags&Intent.FLAG_ACTIVITY_SINGLE_TOP) != 0 |
| && taskTop.realActivity.equals(r.realActivity)) { |
| logStartActivity(EventLogTags.AM_NEW_INTENT, r, taskTop.task); |
| if (taskTop.frontOfTask) { |
| taskTop.task.setIntent(r.intent, r.info); |
| } |
| taskTop.deliverNewIntentLocked(callingUid, r.intent); |
| } else if (!r.intent.filterEquals(taskTop.task.intent)) { |
| // In this case we are launching the root activity |
| // of the task, but with a different intent. We |
| // should start a new instance on top. |
| addingToTask = true; |
| sourceRecord = taskTop; |
| } |
| } else if ((launchFlags&Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED) == 0) { |
| // In this case an activity is being launched in to an |
| // existing task, without resetting that task. This |
| // is typically the situation of launching an activity |
| // from a notification or shortcut. We want to place |
| // the new activity on top of the current task. |
| addingToTask = true; |
| sourceRecord = taskTop; |
| } else if (!taskTop.task.rootWasReset) { |
| // In this case we are launching in to an existing task |
| // that has not yet been started from its front door. |
| // The current task has been brought to the front. |
| // Ideally, we'd probably like to place this new task |
| // at the bottom of its stack, but that's a little hard |
| // to do with the current organization of the code so |
| // for now we'll just drop it. |
| taskTop.task.setIntent(r.intent, r.info); |
| } |
| if (!addingToTask && reuseTask == null) { |
| // We didn't do anything... but it was needed (a.k.a., client |
| // don't use that intent!) And for paranoia, make |
| // sure we have correctly resumed the top activity. |
| if (doResume) { |
| resumeTopActivityLocked(null); |
| } |
| return START_TASK_TO_FRONT; |
| } |
| } |
| } |
| } |
| |
| //String uri = r.intent.toURI(); |
| //Intent intent2 = new Intent(uri); |
| //Slog.i(TAG, "Given intent: " + r.intent); |
| //Slog.i(TAG, "URI is: " + uri); |
| //Slog.i(TAG, "To intent: " + intent2); |
| |
| if (r.packageName != null) { |
| // If the activity being launched is the same as the one currently |
| // at the top, then we need to check if it should only be launched |
| // once. |
| ActivityRecord top = topRunningNonDelayedActivityLocked(notTop); |
| if (top != null && r.resultTo == null) { |
| if (top.realActivity.equals(r.realActivity)) { |
| if (top.app != null && top.app.thread != null) { |
| if ((launchFlags&Intent.FLAG_ACTIVITY_SINGLE_TOP) != 0 |
| || r.launchMode == ActivityInfo.LAUNCH_SINGLE_TOP |
| || r.launchMode == ActivityInfo.LAUNCH_SINGLE_TASK) { |
| logStartActivity(EventLogTags.AM_NEW_INTENT, top, top.task); |
| // For paranoia, make sure we have correctly |
| // resumed the top activity. |
| if (doResume) { |
| resumeTopActivityLocked(null); |
| } |
| if (onlyIfNeeded) { |
| // We don't need to start a new activity, and |
| // the client said not to do anything if that |
| // is the case, so this is it! |
| return START_RETURN_INTENT_TO_CALLER; |
| } |
| top.deliverNewIntentLocked(callingUid, r.intent); |
| return START_DELIVERED_TO_TOP; |
| } |
| } |
| } |
| } |
| |
| } else { |
| if (r.resultTo != null) { |
| sendActivityResultLocked(-1, |
| r.resultTo, r.resultWho, r.requestCode, |
| Activity.RESULT_CANCELED, null); |
| } |
| return START_CLASS_NOT_FOUND; |
| } |
| |
| boolean newTask = false; |
| boolean keepCurTransition = false; |
| |
| // Should this be considered a new task? |
| if (r.resultTo == null && !addingToTask |
| && (launchFlags&Intent.FLAG_ACTIVITY_NEW_TASK) != 0) { |
| if (reuseTask == null) { |
| // todo: should do better management of integers. |
| mService.mCurTask++; |
| if (mService.mCurTask <= 0) { |
| mService.mCurTask = 1; |
| } |
| r.task = new TaskRecord(mService.mCurTask, r.info, intent); |
| if (DEBUG_TASKS) Slog.v(TAG, "Starting new activity " + r |
| + " in new task " + r.task); |
| } else { |
| r.task = reuseTask; |
| } |
| newTask = true; |
| moveHomeToFrontFromLaunchLocked(launchFlags); |
| |
| } else if (sourceRecord != null) { |
| if (!addingToTask && |
| (launchFlags&Intent.FLAG_ACTIVITY_CLEAR_TOP) != 0) { |
| // In this case, we are adding the activity to an existing |
| // task, but the caller has asked to clear that task if the |
| // activity is already running. |
| ActivityRecord top = performClearTaskLocked( |
| sourceRecord.task.taskId, r, launchFlags); |
| keepCurTransition = true; |
| if (top != null) { |
| logStartActivity(EventLogTags.AM_NEW_INTENT, r, top.task); |
| top.deliverNewIntentLocked(callingUid, r.intent); |
| // For paranoia, make sure we have correctly |
| // resumed the top activity. |
| if (doResume) { |
| resumeTopActivityLocked(null); |
| } |
| return START_DELIVERED_TO_TOP; |
| } |
| } else if (!addingToTask && |
| (launchFlags&Intent.FLAG_ACTIVITY_REORDER_TO_FRONT) != 0) { |
| // In this case, we are launching an activity in our own task |
| // that may already be running somewhere in the history, and |
| // we want to shuffle it to the front of the stack if so. |
| int where = findActivityInHistoryLocked(r, sourceRecord.task.taskId); |
| if (where >= 0) { |
| ActivityRecord top = moveActivityToFrontLocked(where); |
| logStartActivity(EventLogTags.AM_NEW_INTENT, r, top.task); |
| top.deliverNewIntentLocked(callingUid, r.intent); |
| if (doResume) { |
| resumeTopActivityLocked(null); |
| } |
| return START_DELIVERED_TO_TOP; |
| } |
| } |
| // An existing activity is starting this new activity, so we want |
| // to keep the new one in the same task as the one that is starting |
| // it. |
| r.task = sourceRecord.task; |
| if (DEBUG_TASKS) Slog.v(TAG, "Starting new activity " + r |
| + " in existing task " + r.task); |
| |
| } else { |
| // This not being started from an existing activity, and not part |
| // of a new task... just put it in the top task, though these days |
| // this case should never happen. |
| final int N = mHistory.size(); |
| ActivityRecord prev = |
| N > 0 ? (ActivityRecord)mHistory.get(N-1) : null; |
| r.task = prev != null |
| ? prev.task |
| : new TaskRecord(mService.mCurTask, r.info, intent); |
| if (DEBUG_TASKS) Slog.v(TAG, "Starting new activity " + r |
| + " in new guessed " + r.task); |
| } |
| |
| if (grantedUriPermissions != null && callingUid > 0) { |
| for (int i=0; i<grantedUriPermissions.length; i++) { |
| mService.grantUriPermissionLocked(callingUid, r.packageName, |
| grantedUriPermissions[i], grantedMode, r.getUriPermissionsLocked()); |
| } |
| } |
| |
| mService.grantUriPermissionFromIntentLocked(callingUid, r.packageName, |
| intent, r.getUriPermissionsLocked()); |
| |
| if (newTask) { |
| EventLog.writeEvent(EventLogTags.AM_CREATE_TASK, r.task.taskId); |
| } |
| logStartActivity(EventLogTags.AM_CREATE_ACTIVITY, r, r.task); |
| startActivityLocked(r, newTask, doResume, keepCurTransition); |
| return START_SUCCESS; |
| } |
| |
| ActivityInfo resolveActivity(Intent intent, String resolvedType, boolean debug) { |
| // Collect information about the target of the Intent. |
| ActivityInfo aInfo; |
| try { |
| ResolveInfo rInfo = |
| AppGlobals.getPackageManager().resolveIntent( |
| intent, resolvedType, |
| PackageManager.MATCH_DEFAULT_ONLY |
| | ActivityManagerService.STOCK_PM_FLAGS); |
| aInfo = rInfo != null ? rInfo.activityInfo : null; |
| } catch (RemoteException e) { |
| aInfo = null; |
| } |
| |
| if (aInfo != null) { |
| // Store the found target back into the intent, because now that |
| // we have it we never want to do this again. For example, if the |
| // user navigates back to this point in the history, we should |
| // always restart the exact same activity. |
| intent.setComponent(new ComponentName( |
| aInfo.applicationInfo.packageName, aInfo.name)); |
| |
| // Don't debug things in the system process |
| if (debug) { |
| if (!aInfo.processName.equals("system")) { |
| mService.setDebugApp(aInfo.processName, true, false); |
| } |
| } |
| } |
| return aInfo; |
| } |
| |
| final int startActivityMayWait(IApplicationThread caller, int callingUid, |
| Intent intent, String resolvedType, Uri[] grantedUriPermissions, |
| int grantedMode, IBinder resultTo, |
| String resultWho, int requestCode, boolean onlyIfNeeded, |
| boolean debug, WaitResult outResult, Configuration config) { |
| // Refuse possible leaked file descriptors |
| if (intent != null && intent.hasFileDescriptors()) { |
| throw new IllegalArgumentException("File descriptors passed in Intent"); |
| } |
| |
| boolean componentSpecified = intent.getComponent() != null; |
| |
| // Don't modify the client's object! |
| intent = new Intent(intent); |
| |
| // Collect information about the target of the Intent. |
| ActivityInfo aInfo = resolveActivity(intent, resolvedType, debug); |
| |
| synchronized (mService) { |
| int callingPid; |
| if (callingUid >= 0) { |
| callingPid = -1; |
| } else if (caller == null) { |
| callingPid = Binder.getCallingPid(); |
| callingUid = Binder.getCallingUid(); |
| } else { |
| callingPid = callingUid = -1; |
| } |
| |
| mConfigWillChange = config != null |
| && mService.mConfiguration.diff(config) != 0; |
| if (DEBUG_CONFIGURATION) Slog.v(TAG, |
| "Starting activity when config will change = " + mConfigWillChange); |
| |
| final long origId = Binder.clearCallingIdentity(); |
| |
| if (mMainStack && aInfo != null && |
| (aInfo.applicationInfo.flags&ApplicationInfo.FLAG_CANT_SAVE_STATE) != 0) { |
| // This may be a heavy-weight process! Check to see if we already |
| // have another, different heavy-weight process running. |
| if (aInfo.processName.equals(aInfo.applicationInfo.packageName)) { |
| if (mService.mHeavyWeightProcess != null && |
| (mService.mHeavyWeightProcess.info.uid != aInfo.applicationInfo.uid || |
| !mService.mHeavyWeightProcess.processName.equals(aInfo.processName))) { |
| int realCallingPid = callingPid; |
| int realCallingUid = callingUid; |
| if (caller != null) { |
| ProcessRecord callerApp = mService.getRecordForAppLocked(caller); |
| if (callerApp != null) { |
| realCallingPid = callerApp.pid; |
| realCallingUid = callerApp.info.uid; |
| } else { |
| Slog.w(TAG, "Unable to find app for caller " + caller |
| + " (pid=" + realCallingPid + ") when starting: " |
| + intent.toString()); |
| return START_PERMISSION_DENIED; |
| } |
| } |
| |
| IIntentSender target = mService.getIntentSenderLocked( |
| IActivityManager.INTENT_SENDER_ACTIVITY, "android", |
| realCallingUid, null, null, 0, new Intent[] { intent }, |
| new String[] { resolvedType }, PendingIntent.FLAG_CANCEL_CURRENT |
| | PendingIntent.FLAG_ONE_SHOT); |
| |
| Intent newIntent = new Intent(); |
| if (requestCode >= 0) { |
| // Caller is requesting a result. |
| newIntent.putExtra(HeavyWeightSwitcherActivity.KEY_HAS_RESULT, true); |
| } |
| newIntent.putExtra(HeavyWeightSwitcherActivity.KEY_INTENT, |
| new IntentSender(target)); |
| if (mService.mHeavyWeightProcess.activities.size() > 0) { |
| ActivityRecord hist = mService.mHeavyWeightProcess.activities.get(0); |
| newIntent.putExtra(HeavyWeightSwitcherActivity.KEY_CUR_APP, |
| hist.packageName); |
| newIntent.putExtra(HeavyWeightSwitcherActivity.KEY_CUR_TASK, |
| hist.task.taskId); |
| } |
| newIntent.putExtra(HeavyWeightSwitcherActivity.KEY_NEW_APP, |
| aInfo.packageName); |
| newIntent.setFlags(intent.getFlags()); |
| newIntent.setClassName("android", |
| HeavyWeightSwitcherActivity.class.getName()); |
| intent = newIntent; |
| resolvedType = null; |
| caller = null; |
| callingUid = Binder.getCallingUid(); |
| callingPid = Binder.getCallingPid(); |
| componentSpecified = true; |
| try { |
| ResolveInfo rInfo = |
| AppGlobals.getPackageManager().resolveIntent( |
| intent, null, |
| PackageManager.MATCH_DEFAULT_ONLY |
| | ActivityManagerService.STOCK_PM_FLAGS); |
| aInfo = rInfo != null ? rInfo.activityInfo : null; |
| } catch (RemoteException e) { |
| aInfo = null; |
| } |
| } |
| } |
| } |
| |
| int res = startActivityLocked(caller, intent, resolvedType, |
| grantedUriPermissions, grantedMode, aInfo, |
| resultTo, resultWho, requestCode, callingPid, callingUid, |
| onlyIfNeeded, componentSpecified, null); |
| |
| if (mConfigWillChange && mMainStack) { |
| // If the caller also wants to switch to a new configuration, |
| // do so now. This allows a clean switch, as we are waiting |
| // for the current activity to pause (so we will not destroy |
| // it), and have not yet started the next activity. |
| mService.enforceCallingPermission(android.Manifest.permission.CHANGE_CONFIGURATION, |
| "updateConfiguration()"); |
| mConfigWillChange = false; |
| if (DEBUG_CONFIGURATION) Slog.v(TAG, |
| "Updating to new configuration after starting activity."); |
| mService.updateConfigurationLocked(config, null); |
| } |
| |
| Binder.restoreCallingIdentity(origId); |
| |
| if (outResult != null) { |
| outResult.result = res; |
| if (res == IActivityManager.START_SUCCESS) { |
| mWaitingActivityLaunched.add(outResult); |
| do { |
| try { |
| mService.wait(); |
| } catch (InterruptedException e) { |
| } |
| } while (!outResult.timeout && outResult.who == null); |
| } else if (res == IActivityManager.START_TASK_TO_FRONT) { |
| ActivityRecord r = this.topRunningActivityLocked(null); |
| if (r.nowVisible) { |
| outResult.timeout = false; |
| outResult.who = new ComponentName(r.info.packageName, r.info.name); |
| outResult.totalTime = 0; |
| outResult.thisTime = 0; |
| } else { |
| outResult.thisTime = SystemClock.uptimeMillis(); |
| mWaitingActivityVisible.add(outResult); |
| do { |
| try { |
| mService.wait(); |
| } catch (InterruptedException e) { |
| } |
| } while (!outResult.timeout && outResult.who == null); |
| } |
| } |
| } |
| |
| return res; |
| } |
| } |
| |
| final int startActivities(IApplicationThread caller, int callingUid, |
| Intent[] intents, String[] resolvedTypes, IBinder resultTo) { |
| if (intents == null) { |
| throw new NullPointerException("intents is null"); |
| } |
| if (resolvedTypes == null) { |
| throw new NullPointerException("resolvedTypes is null"); |
| } |
| if (intents.length != resolvedTypes.length) { |
| throw new IllegalArgumentException("intents are length different than resolvedTypes"); |
| } |
| |
| ActivityRecord[] outActivity = new ActivityRecord[1]; |
| |
| int callingPid; |
| if (callingUid >= 0) { |
| callingPid = -1; |
| } else if (caller == null) { |
| callingPid = Binder.getCallingPid(); |
| callingUid = Binder.getCallingUid(); |
| } else { |
| callingPid = callingUid = -1; |
| } |
| final long origId = Binder.clearCallingIdentity(); |
| try { |
| synchronized (mService) { |
| |
| for (int i=0; i<intents.length; i++) { |
| Intent intent = intents[i]; |
| if (intent == null) { |
| continue; |
| } |
| |
| // Refuse possible leaked file descriptors |
| if (intent != null && intent.hasFileDescriptors()) { |
| throw new IllegalArgumentException("File descriptors passed in Intent"); |
| } |
| |
| boolean componentSpecified = intent.getComponent() != null; |
| |
| // Don't modify the client's object! |
| intent = new Intent(intent); |
| |
| // Collect information about the target of the Intent. |
| ActivityInfo aInfo = resolveActivity(intent, resolvedTypes[i], false); |
| |
| if (mMainStack && aInfo != null && (aInfo.applicationInfo.flags |
| & ApplicationInfo.FLAG_CANT_SAVE_STATE) != 0) { |
| throw new IllegalArgumentException( |
| "FLAG_CANT_SAVE_STATE not supported here"); |
| } |
| |
| int res = startActivityLocked(caller, intent, resolvedTypes[i], |
| null, 0, aInfo, resultTo, null, -1, callingPid, callingUid, |
| false, componentSpecified, outActivity); |
| if (res < 0) { |
| return res; |
| } |
| |
| resultTo = outActivity[0]; |
| } |
| } |
| } finally { |
| Binder.restoreCallingIdentity(origId); |
| } |
| |
| return IActivityManager.START_SUCCESS; |
| } |
| |
| void reportActivityLaunchedLocked(boolean timeout, ActivityRecord r, |
| long thisTime, long totalTime) { |
| for (int i=mWaitingActivityLaunched.size()-1; i>=0; i--) { |
| WaitResult w = mWaitingActivityLaunched.get(i); |
| w.timeout = timeout; |
| if (r != null) { |
| w.who = new ComponentName(r.info.packageName, r.info.name); |
| } |
| w.thisTime = thisTime; |
| w.totalTime = totalTime; |
| } |
| mService.notifyAll(); |
| } |
| |
| void reportActivityVisibleLocked(ActivityRecord r) { |
| for (int i=mWaitingActivityVisible.size()-1; i>=0; i--) { |
| WaitResult w = mWaitingActivityVisible.get(i); |
| w.timeout = false; |
| if (r != null) { |
| w.who = new ComponentName(r.info.packageName, r.info.name); |
| } |
| w.totalTime = SystemClock.uptimeMillis() - w.thisTime; |
| w.thisTime = w.totalTime; |
| } |
| mService.notifyAll(); |
| } |
| |
| void sendActivityResultLocked(int callingUid, ActivityRecord r, |
| String resultWho, int requestCode, int resultCode, Intent data) { |
| |
| if (callingUid > 0) { |
| mService.grantUriPermissionFromIntentLocked(callingUid, r.packageName, |
| data, r.getUriPermissionsLocked()); |
| } |
| |
| if (DEBUG_RESULTS) Slog.v(TAG, "Send activity result to " + r |
| + " : who=" + resultWho + " req=" + requestCode |
| + " res=" + resultCode + " data=" + data); |
| if (mResumedActivity == r && r.app != null && r.app.thread != null) { |
| try { |
| ArrayList<ResultInfo> list = new ArrayList<ResultInfo>(); |
| list.add(new ResultInfo(resultWho, requestCode, |
| resultCode, data)); |
| r.app.thread.scheduleSendResult(r, list); |
| return; |
| } catch (Exception e) { |
| Slog.w(TAG, "Exception thrown sending result to " + r, e); |
| } |
| } |
| |
| r.addResultLocked(null, resultWho, requestCode, resultCode, data); |
| } |
| |
| private final void stopActivityLocked(ActivityRecord r) { |
| if (DEBUG_SWITCH) Slog.d(TAG, "Stopping: " + r); |
| if ((r.intent.getFlags()&Intent.FLAG_ACTIVITY_NO_HISTORY) != 0 |
| || (r.info.flags&ActivityInfo.FLAG_NO_HISTORY) != 0) { |
| if (!r.finishing) { |
| requestFinishActivityLocked(r, Activity.RESULT_CANCELED, null, |
| "no-history"); |
| } |
| } else if (r.app != null && r.app.thread != null) { |
| if (mMainStack) { |
| if (mService.mFocusedActivity == r) { |
| mService.setFocusedActivityLocked(topRunningActivityLocked(null)); |
| } |
| } |
| r.resumeKeyDispatchingLocked(); |
| try { |
| r.stopped = false; |
| r.state = ActivityState.STOPPING; |
| if (DEBUG_VISBILITY) Slog.v( |
| TAG, "Stopping visible=" + r.visible + " for " + r); |
| if (!r.visible) { |
| mService.mWindowManager.setAppVisibility(r, false); |
| } |
| r.app.thread.scheduleStopActivity(r, r.visible, r.configChangeFlags); |
| if (mService.isSleeping()) { |
| r.setSleeping(true); |
| } |
| } catch (Exception e) { |
| // Maybe just ignore exceptions here... if the process |
| // has crashed, our death notification will clean things |
| // up. |
| Slog.w(TAG, "Exception thrown during pause", e); |
| // Just in case, assume it to be stopped. |
| r.stopped = true; |
| r.state = ActivityState.STOPPED; |
| if (r.configDestroy) { |
| destroyActivityLocked(r, true); |
| } |
| } |
| } |
| } |
| |
| final ArrayList<ActivityRecord> processStoppingActivitiesLocked( |
| boolean remove) { |
| int N = mStoppingActivities.size(); |
| if (N <= 0) return null; |
| |
| ArrayList<ActivityRecord> stops = null; |
| |
| final boolean nowVisible = mResumedActivity != null |
| && mResumedActivity.nowVisible |
| && !mResumedActivity.waitingVisible; |
| for (int i=0; i<N; i++) { |
| ActivityRecord s = mStoppingActivities.get(i); |
| if (localLOGV) Slog.v(TAG, "Stopping " + s + ": nowVisible=" |
| + nowVisible + " waitingVisible=" + s.waitingVisible |
| + " finishing=" + s.finishing); |
| if (s.waitingVisible && nowVisible) { |
| mWaitingVisibleActivities.remove(s); |
| s.waitingVisible = false; |
| if (s.finishing) { |
| // If this activity is finishing, it is sitting on top of |
| // everyone else but we now know it is no longer needed... |
| // so get rid of it. Otherwise, we need to go through the |
| // normal flow and hide it once we determine that it is |
| // hidden by the activities in front of it. |
| if (localLOGV) Slog.v(TAG, "Before stopping, can hide: " + s); |
| mService.mWindowManager.setAppVisibility(s, false); |
| } |
| } |
| if ((!s.waitingVisible || mService.isSleeping()) && remove) { |
| if (localLOGV) Slog.v(TAG, "Ready to stop: " + s); |
| if (stops == null) { |
| stops = new ArrayList<ActivityRecord>(); |
| } |
| stops.add(s); |
| mStoppingActivities.remove(i); |
| N--; |
| i--; |
| } |
| } |
| |
| return stops; |
| } |
| |
| final void activityIdleInternal(IBinder token, boolean fromTimeout, |
| Configuration config) { |
| if (localLOGV) Slog.v(TAG, "Activity idle: " + token); |
| |
| ArrayList<ActivityRecord> stops = null; |
| ArrayList<ActivityRecord> finishes = null; |
| ArrayList<ActivityRecord> thumbnails = null; |
| int NS = 0; |
| int NF = 0; |
| int NT = 0; |
| IApplicationThread sendThumbnail = null; |
| boolean booting = false; |
| boolean enableScreen = false; |
| |
| synchronized (mService) { |
| if (token != null) { |
| mHandler.removeMessages(IDLE_TIMEOUT_MSG, token); |
| } |
| |
| // Get the activity record. |
| int index = indexOfTokenLocked(token); |
| if (index >= 0) { |
| ActivityRecord r = (ActivityRecord)mHistory.get(index); |
| |
| if (fromTimeout) { |
| reportActivityLaunchedLocked(fromTimeout, r, -1, -1); |
| } |
| |
| // This is a hack to semi-deal with a race condition |
| // in the client where it can be constructed with a |
| // newer configuration from when we asked it to launch. |
| // We'll update with whatever configuration it now says |
| // it used to launch. |
| if (config != null) { |
| r.configuration = config; |
| } |
| |
| // No longer need to keep the device awake. |
| if (mResumedActivity == r && mLaunchingActivity.isHeld()) { |
| mHandler.removeMessages(LAUNCH_TIMEOUT_MSG); |
| mLaunchingActivity.release(); |
| } |
| |
| // We are now idle. If someone is waiting for a thumbnail from |
| // us, we can now deliver. |
| r.idle = true; |
| mService.scheduleAppGcsLocked(); |
| if (r.thumbnailNeeded && r.app != null && r.app.thread != null) { |
| sendThumbnail = r.app.thread; |
| r.thumbnailNeeded = false; |
| } |
| |
| // If this activity is fullscreen, set up to hide those under it. |
| |
| if (DEBUG_VISBILITY) Slog.v(TAG, "Idle activity for " + r); |
| ensureActivitiesVisibleLocked(null, 0); |
| |
| //Slog.i(TAG, "IDLE: mBooted=" + mBooted + ", fromTimeout=" + fromTimeout); |
| if (mMainStack) { |
| if (!mService.mBooted && !fromTimeout) { |
| mService.mBooted = true; |
| enableScreen = true; |
| } |
| } |
| |
| } else if (fromTimeout) { |
| reportActivityLaunchedLocked(fromTimeout, null, -1, -1); |
| } |
| |
| // Atomically retrieve all of the other things to do. |
| stops = processStoppingActivitiesLocked(true); |
| NS = stops != null ? stops.size() : 0; |
| if ((NF=mFinishingActivities.size()) > 0) { |
| finishes = new ArrayList<ActivityRecord>(mFinishingActivities); |
| mFinishingActivities.clear(); |
| } |
| if ((NT=mService.mCancelledThumbnails.size()) > 0) { |
| thumbnails = new ArrayList<ActivityRecord>(mService.mCancelledThumbnails); |
| mService.mCancelledThumbnails.clear(); |
| } |
| |
| if (mMainStack) { |
| booting = mService.mBooting; |
| mService.mBooting = false; |
| } |
| } |
| |
| int i; |
| |
| // Send thumbnail if requested. |
| if (sendThumbnail != null) { |
| try { |
| sendThumbnail.requestThumbnail(token); |
| } catch (Exception e) { |
| Slog.w(TAG, "Exception thrown when requesting thumbnail", e); |
| mService.sendPendingThumbnail(null, token, null, null, true); |
| } |
| } |
| |
| // Stop any activities that are scheduled to do so but have been |
| // waiting for the next one to start. |
| for (i=0; i<NS; i++) { |
| ActivityRecord r = (ActivityRecord)stops.get(i); |
| synchronized (mService) { |
| if (r.finishing) { |
| finishCurrentActivityLocked(r, FINISH_IMMEDIATELY); |
| } else { |
| stopActivityLocked(r); |
| } |
| } |
| } |
| |
| // Finish any activities that are scheduled to do so but have been |
| // waiting for the next one to start. |
| for (i=0; i<NF; i++) { |
| ActivityRecord r = (ActivityRecord)finishes.get(i); |
| synchronized (mService) { |
| destroyActivityLocked(r, true); |
| } |
| } |
| |
| // Report back to any thumbnail receivers. |
| for (i=0; i<NT; i++) { |
| ActivityRecord r = (ActivityRecord)thumbnails.get(i); |
| mService.sendPendingThumbnail(r, null, null, null, true); |
| } |
| |
| if (booting) { |
| mService.finishBooting(); |
| } |
| |
| mService.trimApplications(); |
| //dump(); |
| //mWindowManager.dump(); |
| |
| if (enableScreen) { |
| mService.enableScreenAfterBoot(); |
| } |
| } |
| |
| /** |
| * @return Returns true if the activity is being finished, false if for |
| * some reason it is being left as-is. |
| */ |
| final boolean requestFinishActivityLocked(IBinder token, int resultCode, |
| Intent resultData, String reason) { |
| if (DEBUG_RESULTS) Slog.v( |
| TAG, "Finishing activity: token=" + token |
| + ", result=" + resultCode + ", data=" + resultData); |
| |
| int index = indexOfTokenLocked(token); |
| if (index < 0) { |
| return false; |
| } |
| ActivityRecord r = (ActivityRecord)mHistory.get(index); |
| |
| // Is this the last activity left? |
| boolean lastActivity = true; |
| for (int i=mHistory.size()-1; i>=0; i--) { |
| ActivityRecord p = (ActivityRecord)mHistory.get(i); |
| if (!p.finishing && p != r) { |
| lastActivity = false; |
| break; |
| } |
| } |
| |
| // If this is the last activity, but it is the home activity, then |
| // just don't finish it. |
| if (lastActivity) { |
| if (r.intent.hasCategory(Intent.CATEGORY_HOME)) { |
| return false; |
| } |
| } |
| |
| finishActivityLocked(r, index, resultCode, resultData, reason); |
| return true; |
| } |
| |
| /** |
| * @return Returns true if this activity has been removed from the history |
| * list, or false if it is still in the list and will be removed later. |
| */ |
| final boolean finishActivityLocked(ActivityRecord r, int index, |
| int resultCode, Intent resultData, String reason) { |
| if (r.finishing) { |
| Slog.w(TAG, "Duplicate finish request for " + r); |
| return false; |
| } |
| |
| r.makeFinishing(); |
| EventLog.writeEvent(EventLogTags.AM_FINISH_ACTIVITY, |
| System.identityHashCode(r), |
| r.task.taskId, r.shortComponentName, reason); |
| if (index < (mHistory.size()-1)) { |
| ActivityRecord next = (ActivityRecord)mHistory.get(index+1); |
| if (next.task == r.task) { |
| if (r.frontOfTask) { |
| // The next activity is now the front of the task. |
| next.frontOfTask = true; |
| } |
| if ((r.intent.getFlags()&Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET) != 0) { |
| // If the caller asked that this activity (and all above it) |
| // be cleared when the task is reset, don't lose that information, |
| // but propagate it up to the next activity. |
| next.intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET); |
| } |
| } |
| } |
| |
| r.pauseKeyDispatchingLocked(); |
| if (mMainStack) { |
| if (mService.mFocusedActivity == r) { |
| mService.setFocusedActivityLocked(topRunningActivityLocked(null)); |
| } |
| } |
| |
| // send the result |
| ActivityRecord resultTo = r.resultTo; |
| if (resultTo != null) { |
| if (DEBUG_RESULTS) Slog.v(TAG, "Adding result to " + resultTo |
| + " who=" + r.resultWho + " req=" + r.requestCode |
| + " res=" + resultCode + " data=" + resultData); |
| if (r.info.applicationInfo.uid > 0) { |
| mService.grantUriPermissionFromIntentLocked(r.info.applicationInfo.uid, |
| resultTo.packageName, resultData, |
| resultTo.getUriPermissionsLocked()); |
| } |
| resultTo.addResultLocked(r, r.resultWho, r.requestCode, resultCode, |
| resultData); |
| r.resultTo = null; |
| } |
| else if (DEBUG_RESULTS) Slog.v(TAG, "No result destination from " + r); |
| |
| // Make sure this HistoryRecord is not holding on to other resources, |
| // because clients have remote IPC references to this object so we |
| // can't assume that will go away and want to avoid circular IPC refs. |
| r.results = null; |
| r.pendingResults = null; |
| r.newIntents = null; |
| r.icicle = null; |
| |
| if (mService.mPendingThumbnails.size() > 0) { |
| // There are clients waiting to receive thumbnails so, in case |
| // this is an activity that someone is waiting for, add it |
| // to the pending list so we can correctly update the clients. |
| mService.mCancelledThumbnails.add(r); |
| } |
| |
| if (mResumedActivity == r) { |
| boolean endTask = index <= 0 |
| || ((ActivityRecord)mHistory.get(index-1)).task != r.task; |
| if (DEBUG_TRANSITION) Slog.v(TAG, |
| "Prepare close transition: finishing " + r); |
| mService.mWindowManager.prepareAppTransition(endTask |
| ? WindowManagerPolicy.TRANSIT_TASK_CLOSE |
| : WindowManagerPolicy.TRANSIT_ACTIVITY_CLOSE, false); |
| |
| // Tell window manager to prepare for this one to be removed. |
| mService.mWindowManager.setAppVisibility(r, false); |
| |
| if (mPausingActivity == null) { |
| if (DEBUG_PAUSE) Slog.v(TAG, "Finish needs to pause: " + r); |
| if (DEBUG_USER_LEAVING) Slog.v(TAG, "finish() => pause with userLeaving=false"); |
| startPausingLocked(false, false); |
| } |
| |
| } else if (r.state != ActivityState.PAUSING) { |
| // If the activity is PAUSING, we will complete the finish once |
| // it is done pausing; else we can just directly finish it here. |
| if (DEBUG_PAUSE) Slog.v(TAG, "Finish not pausing: " + r); |
| return finishCurrentActivityLocked(r, index, |
| FINISH_AFTER_PAUSE) == null; |
| } else { |
| if (DEBUG_PAUSE) Slog.v(TAG, "Finish waiting for pause of: " + r); |
| } |
| |
| return false; |
| } |
| |
| private static final int FINISH_IMMEDIATELY = 0; |
| private static final int FINISH_AFTER_PAUSE = 1; |
| private static final int FINISH_AFTER_VISIBLE = 2; |
| |
| private final ActivityRecord finishCurrentActivityLocked(ActivityRecord r, |
| int mode) { |
| final int index = indexOfTokenLocked(r); |
| if (index < 0) { |
| return null; |
| } |
| |
| return finishCurrentActivityLocked(r, index, mode); |
| } |
| |
| private final ActivityRecord finishCurrentActivityLocked(ActivityRecord r, |
| int index, int mode) { |
| // First things first: if this activity is currently visible, |
| // and the resumed activity is not yet visible, then hold off on |
| // finishing until the resumed one becomes visible. |
| if (mode == FINISH_AFTER_VISIBLE && r.nowVisible) { |
| if (!mStoppingActivities.contains(r)) { |
| mStoppingActivities.add(r); |
| if (mStoppingActivities.size() > 3) { |
| // If we already have a few activities waiting to stop, |
| // then give up on things going idle and start clearing |
| // them out. |
| Message msg = Message.obtain(); |
| msg.what = IDLE_NOW_MSG; |
| mHandler.sendMessage(msg); |
| } else { |
| checkReadyForSleepLocked(); |
| } |
| } |
| r.state = ActivityState.STOPPING; |
| mService.updateOomAdjLocked(); |
| return r; |
| } |
| |
| // make sure the record is cleaned out of other places. |
| mStoppingActivities.remove(r); |
| mGoingToSleepActivities.remove(r); |
| mWaitingVisibleActivities.remove(r); |
| if (mResumedActivity == r) { |
| mResumedActivity = null; |
| } |
| final ActivityState prevState = r.state; |
| r.state = ActivityState.FINISHING; |
| |
| if (mode == FINISH_IMMEDIATELY |
| || prevState == ActivityState.STOPPED |
| || prevState == ActivityState.INITIALIZING) { |
| // If this activity is already stopped, we can just finish |
| // it right now. |
| return destroyActivityLocked(r, true) ? null : r; |
| } else { |
| // Need to go through the full pause cycle to get this |
| // activity into the stopped state and then finish it. |
| if (localLOGV) Slog.v(TAG, "Enqueueing pending finish: " + r); |
| mFinishingActivities.add(r); |
| resumeTopActivityLocked(null); |
| } |
| return r; |
| } |
| |
| /** |
| * Perform the common clean-up of an activity record. This is called both |
| * as part of destroyActivityLocked() (when destroying the client-side |
| * representation) and cleaning things up as a result of its hosting |
| * processing going away, in which case there is no remaining client-side |
| * state to destroy so only the cleanup here is needed. |
| */ |
| final void cleanUpActivityLocked(ActivityRecord r, boolean cleanServices) { |
| if (mResumedActivity == r) { |
| mResumedActivity = null; |
| } |
| if (mService.mFocusedActivity == r) { |
| mService.mFocusedActivity = null; |
| } |
| |
| r.configDestroy = false; |
| r.frozenBeforeDestroy = false; |
| |
| // Make sure this record is no longer in the pending finishes list. |
| // This could happen, for example, if we are trimming activities |
| // down to the max limit while they are still waiting to finish. |
| mFinishingActivities.remove(r); |
| mWaitingVisibleActivities.remove(r); |
| |
| // Remove any pending results. |
| if (r.finishing && r.pendingResults != null) { |
| for (WeakReference<PendingIntentRecord> apr : r.pendingResults) { |
| PendingIntentRecord rec = apr.get(); |
| if (rec != null) { |
| mService.cancelIntentSenderLocked(rec, false); |
| } |
| } |
| r.pendingResults = null; |
| } |
| |
| if (cleanServices) { |
| cleanUpActivityServicesLocked(r); |
| } |
| |
| if (mService.mPendingThumbnails.size() > 0) { |
| // There are clients waiting to receive thumbnails so, in case |
| // this is an activity that someone is waiting for, add it |
| // to the pending list so we can correctly update the clients. |
| mService.mCancelledThumbnails.add(r); |
| } |
| |
| // Get rid of any pending idle timeouts. |
| mHandler.removeMessages(PAUSE_TIMEOUT_MSG, r); |
| mHandler.removeMessages(IDLE_TIMEOUT_MSG, r); |
| } |
| |
| private final void removeActivityFromHistoryLocked(ActivityRecord r) { |
| if (r.state != ActivityState.DESTROYED) { |
| r.makeFinishing(); |
| mHistory.remove(r); |
| r.inHistory = false; |
| r.state = ActivityState.DESTROYED; |
| mService.mWindowManager.removeAppToken(r); |
| if (VALIDATE_TOKENS) { |
| mService.mWindowManager.validateAppTokens(mHistory); |
| } |
| cleanUpActivityServicesLocked(r); |
| r.removeUriPermissionsLocked(); |
| } |
| } |
| |
| /** |
| * Perform clean-up of service connections in an activity record. |
| */ |
| final void cleanUpActivityServicesLocked(ActivityRecord r) { |
| // Throw away any services that have been bound by this activity. |
| if (r.connections != null) { |
| Iterator<ConnectionRecord> it = r.connections.iterator(); |
| while (it.hasNext()) { |
| ConnectionRecord c = it.next(); |
| mService.removeConnectionLocked(c, null, r); |
| } |
| r.connections = null; |
| } |
| } |
| |
| /** |
| * Destroy the current CLIENT SIDE instance of an activity. This may be |
| * called both when actually finishing an activity, or when performing |
| * a configuration switch where we destroy the current client-side object |
| * but then create a new client-side object for this same HistoryRecord. |
| */ |
| final boolean destroyActivityLocked(ActivityRecord r, |
| boolean removeFromApp) { |
| if (DEBUG_SWITCH) Slog.v( |
| TAG, "Removing activity: token=" + r |
| + ", app=" + (r.app != null ? r.app.processName : "(null)")); |
| EventLog.writeEvent(EventLogTags.AM_DESTROY_ACTIVITY, |
| System.identityHashCode(r), |
| r.task.taskId, r.shortComponentName); |
| |
| boolean removedFromHistory = false; |
| |
| cleanUpActivityLocked(r, false); |
| |
| final boolean hadApp = r.app != null; |
| |
| if (hadApp) { |
| if (removeFromApp) { |
| int idx = r.app.activities.indexOf(r); |
| if (idx >= 0) { |
| r.app.activities.remove(idx); |
| } |
| if (mService.mHeavyWeightProcess == r.app && r.app.activities.size() <= 0) { |
| mService.mHeavyWeightProcess = null; |
| mService.mHandler.sendEmptyMessage( |
| ActivityManagerService.CANCEL_HEAVY_NOTIFICATION_MSG); |
| } |
| if (r.app.activities.size() == 0) { |
| // No longer have activities, so update location in |
| // LRU list. |
| mService.updateLruProcessLocked(r.app, true, false); |
| } |
| } |
| |
| boolean skipDestroy = false; |
| |
| try { |
| if (DEBUG_SWITCH) Slog.i(TAG, "Destroying: " + r); |
| r.app.thread.scheduleDestroyActivity(r, r.finishing, |
| r.configChangeFlags); |
| } catch (Exception e) { |
| // We can just ignore exceptions here... if the process |
| // has crashed, our death notification will clean things |
| // up. |
| //Slog.w(TAG, "Exception thrown during finish", e); |
| if (r.finishing) { |
| removeActivityFromHistoryLocked(r); |
| removedFromHistory = true; |
| skipDestroy = true; |
| } |
| } |
| |
| r.app = null; |
| r.nowVisible = false; |
| |
| if (r.finishing && !skipDestroy) { |
| r.state = ActivityState.DESTROYING; |
| Message msg = mHandler.obtainMessage(DESTROY_TIMEOUT_MSG); |
| msg.obj = r; |
| mHandler.sendMessageDelayed(msg, DESTROY_TIMEOUT); |
| } else { |
| r.state = ActivityState.DESTROYED; |
| } |
| } else { |
| // remove this record from the history. |
| if (r.finishing) { |
| removeActivityFromHistoryLocked(r); |
| removedFromHistory = true; |
| } else { |
| r.state = ActivityState.DESTROYED; |
| } |
| } |
| |
| r.configChangeFlags = 0; |
| |
| if (!mLRUActivities.remove(r) && hadApp) { |
| Slog.w(TAG, "Activity " + r + " being finished, but not in LRU list"); |
| } |
| |
| return removedFromHistory; |
| } |
| |
| final void activityDestroyed(IBinder token) { |
| synchronized (mService) { |
| mHandler.removeMessages(DESTROY_TIMEOUT_MSG, token); |
| |
| int index = indexOfTokenLocked(token); |
| if (index >= 0) { |
| ActivityRecord r = (ActivityRecord)mHistory.get(index); |
| if (r.state == ActivityState.DESTROYING) { |
| final long origId = Binder.clearCallingIdentity(); |
| removeActivityFromHistoryLocked(r); |
| Binder.restoreCallingIdentity(origId); |
| } |
| } |
| } |
| } |
| |
| private static void removeHistoryRecordsForAppLocked(ArrayList list, ProcessRecord app) { |
| int i = list.size(); |
| if (localLOGV) Slog.v( |
| TAG, "Removing app " + app + " from list " + list |
| + " with " + i + " entries"); |
| while (i > 0) { |
| i--; |
| ActivityRecord r = (ActivityRecord)list.get(i); |
| if (localLOGV) Slog.v( |
| TAG, "Record #" + i + " " + r + ": app=" + r.app); |
| if (r.app == app) { |
| if (localLOGV) Slog.v(TAG, "Removing this entry!"); |
| list.remove(i); |
| } |
| } |
| } |
| |
| void removeHistoryRecordsForAppLocked(ProcessRecord app) { |
| removeHistoryRecordsForAppLocked(mLRUActivities, app); |
| removeHistoryRecordsForAppLocked(mStoppingActivities, app); |
| removeHistoryRecordsForAppLocked(mGoingToSleepActivities, app); |
| removeHistoryRecordsForAppLocked(mWaitingVisibleActivities, app); |
| removeHistoryRecordsForAppLocked(mFinishingActivities, app); |
| } |
| |
| /** |
| * Move the current home activity's task (if one exists) to the front |
| * of the stack. |
| */ |
| final void moveHomeToFrontLocked() { |
| TaskRecord homeTask = null; |
| for (int i=mHistory.size()-1; i>=0; i--) { |
| ActivityRecord hr = (ActivityRecord)mHistory.get(i); |
| if (hr.isHomeActivity) { |
| homeTask = hr.task; |
| break; |
| } |
| } |
| if (homeTask != null) { |
| moveTaskToFrontLocked(homeTask, null); |
| } |
| } |
| |
| |
| final void moveTaskToFrontLocked(TaskRecord tr, ActivityRecord reason) { |
| if (DEBUG_SWITCH) Slog.v(TAG, "moveTaskToFront: " + tr); |
| |
| final int task = tr.taskId; |
| int top = mHistory.size()-1; |
| |
| if (top < 0 || ((ActivityRecord)mHistory.get(top)).task.taskId == task) { |
| // nothing to do! |
| return; |
| } |
| |
| ArrayList moved = new ArrayList(); |
| |
| // Applying the affinities may have removed entries from the history, |
| // so get the size again. |
| top = mHistory.size()-1; |
| int pos = top; |
| |
| // Shift all activities with this task up to the top |
| // of the stack, keeping them in the same internal order. |
| while (pos >= 0) { |
| ActivityRecord r = (ActivityRecord)mHistory.get(pos); |
| if (localLOGV) Slog.v( |
| TAG, "At " + pos + " ckp " + r.task + ": " + r); |
| if (r.task.taskId == task) { |
| if (localLOGV) Slog.v(TAG, "Removing and adding at " + top); |
| mHistory.remove(pos); |
| mHistory.add(top, r); |
| moved.add(0, r); |
| top--; |
| } |
| pos--; |
| } |
| |
| if (DEBUG_TRANSITION) Slog.v(TAG, |
| "Prepare to front transition: task=" + tr); |
| if (reason != null && |
| (reason.intent.getFlags()&Intent.FLAG_ACTIVITY_NO_ANIMATION) != 0) { |
| mService.mWindowManager.prepareAppTransition( |
| WindowManagerPolicy.TRANSIT_NONE, false); |
| ActivityRecord r = topRunningActivityLocked(null); |
| if (r != null) { |
| mNoAnimActivities.add(r); |
| } |
| } else { |
| mService.mWindowManager.prepareAppTransition( |
| WindowManagerPolicy.TRANSIT_TASK_TO_FRONT, false); |
| } |
| |
| mService.mWindowManager.moveAppTokensToTop(moved); |
| if (VALIDATE_TOKENS) { |
| mService.mWindowManager.validateAppTokens(mHistory); |
| } |
| |
| finishTaskMoveLocked(task); |
| EventLog.writeEvent(EventLogTags.AM_TASK_TO_FRONT, task); |
| } |
| |
| private final void finishTaskMoveLocked(int task) { |
| resumeTopActivityLocked(null); |
| } |
| |
| /** |
| * Worker method for rearranging history stack. Implements the function of moving all |
| * activities for a specific task (gathering them if disjoint) into a single group at the |
| * bottom of the stack. |
| * |
| * If a watcher is installed, the action is preflighted and the watcher has an opportunity |
| * to premeptively cancel the move. |
| * |
| * @param task The taskId to collect and move to the bottom. |
| * @return Returns true if the move completed, false if not. |
| */ |
| final boolean moveTaskToBackLocked(int task, ActivityRecord reason) { |
| Slog.i(TAG, "moveTaskToBack: " + task); |
| |
| // If we have a watcher, preflight the move before committing to it. First check |
| // for *other* available tasks, but if none are available, then try again allowing the |
| // current task to be selected. |
| if (mMainStack && mService.mController != null) { |
| ActivityRecord next = topRunningActivityLocked(null, task); |
| if (next == null) { |
| next = topRunningActivityLocked(null, 0); |
| } |
| if (next != null) { |
| // ask watcher if this is allowed |
| boolean moveOK = true; |
| try { |
| moveOK = mService.mController.activityResuming(next.packageName); |
| } catch (RemoteException e) { |
| mService.mController = null; |
| } |
| if (!moveOK) { |
| return false; |
| } |
| } |
| } |
| |
| ArrayList moved = new ArrayList(); |
| |
| if (DEBUG_TRANSITION) Slog.v(TAG, |
| "Prepare to back transition: task=" + task); |
| |
| final int N = mHistory.size(); |
| int bottom = 0; |
| int pos = 0; |
| |
| // Shift all activities with this task down to the bottom |
| // of the stack, keeping them in the same internal order. |
| while (pos < N) { |
| ActivityRecord r = (ActivityRecord)mHistory.get(pos); |
| if (localLOGV) Slog.v( |
| TAG, "At " + pos + " ckp " + r.task + ": " + r); |
| if (r.task.taskId == task) { |
| if (localLOGV) Slog.v(TAG, "Removing and adding at " + (N-1)); |
| mHistory.remove(pos); |
| mHistory.add(bottom, r); |
| moved.add(r); |
| bottom++; |
| } |
| pos++; |
| } |
| |
| if (reason != null && |
| (reason.intent.getFlags()&Intent.FLAG_ACTIVITY_NO_ANIMATION) != 0) { |
| mService.mWindowManager.prepareAppTransition( |
| WindowManagerPolicy.TRANSIT_NONE, false); |
| ActivityRecord r = topRunningActivityLocked(null); |
| if (r != null) { |
| mNoAnimActivities.add(r); |
| } |
| } else { |
| mService.mWindowManager.prepareAppTransition( |
| WindowManagerPolicy.TRANSIT_TASK_TO_BACK, false); |
| } |
| mService.mWindowManager.moveAppTokensToBottom(moved); |
| if (VALIDATE_TOKENS) { |
| mService.mWindowManager.validateAppTokens(mHistory); |
| } |
| |
| finishTaskMoveLocked(task); |
| return true; |
| } |
| |
| private final void logStartActivity(int tag, ActivityRecord r, |
| TaskRecord task) { |
| EventLog.writeEvent(tag, |
| System.identityHashCode(r), task.taskId, |
| r.shortComponentName, r.intent.getAction(), |
| r.intent.getType(), r.intent.getDataString(), |
| r.intent.getFlags()); |
| } |
| |
| /** |
| * Make sure the given activity matches the current configuration. Returns |
| * false if the activity had to be destroyed. Returns true if the |
| * configuration is the same, or the activity will remain running as-is |
| * for whatever reason. Ensures the HistoryRecord is updated with the |
| * correct configuration and all other bookkeeping is handled. |
| */ |
| final boolean ensureActivityConfigurationLocked(ActivityRecord r, |
| int globalChanges) { |
| if (mConfigWillChange) { |
| if (DEBUG_SWITCH || DEBUG_CONFIGURATION) Slog.v(TAG, |
| "Skipping config check (will change): " + r); |
| return true; |
| } |
| |
| if (DEBUG_SWITCH || DEBUG_CONFIGURATION) Slog.v(TAG, |
| "Ensuring correct configuration: " + r); |
| |
| // Short circuit: if the two configurations are the exact same |
| // object (the common case), then there is nothing to do. |
| Configuration newConfig = mService.mConfiguration; |
| if (r.configuration == newConfig && !r.forceNewConfig) { |
| if (DEBUG_SWITCH || DEBUG_CONFIGURATION) Slog.v(TAG, |
| "Configuration unchanged in " + r); |
| return true; |
| } |
| |
| // We don't worry about activities that are finishing. |
| if (r.finishing) { |
| if (DEBUG_SWITCH || DEBUG_CONFIGURATION) Slog.v(TAG, |
| "Configuration doesn't matter in finishing " + r); |
| r.stopFreezingScreenLocked(false); |
| return true; |
| } |
| |
| // Okay we now are going to make this activity have the new config. |
| // But then we need to figure out how it needs to deal with that. |
| Configuration oldConfig = r.configuration; |
| r.configuration = newConfig; |
| |
| // If the activity isn't currently running, just leave the new |
| // configuration and it will pick that up next time it starts. |
| if (r.app == null || r.app.thread == null) { |
| if (DEBUG_SWITCH || DEBUG_CONFIGURATION) Slog.v(TAG, |
| "Configuration doesn't matter not running " + r); |
| r.stopFreezingScreenLocked(false); |
| r.forceNewConfig = false; |
| return true; |
| } |
| |
| // Figure out what has changed between the two configurations. |
| int changes = oldConfig.diff(newConfig); |
| if (DEBUG_SWITCH || DEBUG_CONFIGURATION) { |
| Slog.v(TAG, "Checking to restart " + r.info.name + ": changed=0x" |
| + Integer.toHexString(changes) + ", handles=0x" |
| + Integer.toHexString(r.info.configChanges) |
| + ", newConfig=" + newConfig); |
| } |
| if ((changes&(~r.info.configChanges)) != 0 || r.forceNewConfig) { |
| // Aha, the activity isn't handling the change, so DIE DIE DIE. |
| r.configChangeFlags |= changes; |
| r.startFreezingScreenLocked(r.app, globalChanges); |
| r.forceNewConfig = false; |
| if (r.app == null || r.app.thread == null) { |
| if (DEBUG_SWITCH || DEBUG_CONFIGURATION) Slog.v(TAG, |
| "Switch is destroying non-running " + r); |
| destroyActivityLocked(r, true); |
| } else if (r.state == ActivityState.PAUSING) { |
| // A little annoying: we are waiting for this activity to |
| // finish pausing. Let's not do anything now, but just |
| // flag that it needs to be restarted when done pausing. |
| if (DEBUG_SWITCH || DEBUG_CONFIGURATION) Slog.v(TAG, |
| "Switch is skipping already pausing " + r); |
| r.configDestroy = true; |
| return true; |
| } else if (r.state == ActivityState.RESUMED) { |
| // Try to optimize this case: the configuration is changing |
| // and we need to restart the top, resumed activity. |
| // Instead of doing the normal handshaking, just say |
| // "restart!". |
| if (DEBUG_SWITCH || DEBUG_CONFIGURATION) Slog.v(TAG, |
| "Switch is restarting resumed " + r); |
| relaunchActivityLocked(r, r.configChangeFlags, true); |
| r.configChangeFlags = 0; |
| } else { |
| if (DEBUG_SWITCH || DEBUG_CONFIGURATION) Slog.v(TAG, |
| "Switch is restarting non-resumed " + r); |
| relaunchActivityLocked(r, r.configChangeFlags, false); |
| r.configChangeFlags = 0; |
| } |
| |
| // All done... tell the caller we weren't able to keep this |
| // activity around. |
| return false; |
| } |
| |
| // Default case: the activity can handle this new configuration, so |
| // hand it over. Note that we don't need to give it the new |
| // configuration, since we always send configuration changes to all |
| // process when they happen so it can just use whatever configuration |
| // it last got. |
| if (r.app != null && r.app.thread != null) { |
| try { |
| if (DEBUG_CONFIGURATION) Slog.v(TAG, "Sending new config to " + r); |
| r.app.thread.scheduleActivityConfigurationChanged(r); |
| } catch (RemoteException e) { |
| // If process died, whatever. |
| } |
| } |
| r.stopFreezingScreenLocked(false); |
| |
| return true; |
| } |
| |
| private final boolean relaunchActivityLocked(ActivityRecord r, |
| int changes, boolean andResume) { |
| List<ResultInfo> results = null; |
| List<Intent> newIntents = null; |
| if (andResume) { |
| results = r.results; |
| newIntents = r.newIntents; |
| } |
| if (DEBUG_SWITCH) Slog.v(TAG, "Relaunching: " + r |
| + " with results=" + results + " newIntents=" + newIntents |
| + " andResume=" + andResume); |
| EventLog.writeEvent(andResume ? EventLogTags.AM_RELAUNCH_RESUME_ACTIVITY |
| : EventLogTags.AM_RELAUNCH_ACTIVITY, System.identityHashCode(r), |
| r.task.taskId, r.shortComponentName); |
| |
| r.startFreezingScreenLocked(r.app, 0); |
| |
| try { |
| if (DEBUG_SWITCH) Slog.i(TAG, "Switch is restarting resumed " + r); |
| r.forceNewConfig = false; |
| r.app.thread.scheduleRelaunchActivity(r, results, newIntents, |
| changes, !andResume, mService.mConfiguration); |
| // Note: don't need to call pauseIfSleepingLocked() here, because |
| // the caller will only pass in 'andResume' if this activity is |
| // currently resumed, which implies we aren't sleeping. |
| } catch (RemoteException e) { |
| return false; |
| } |
| |
| if (andResume) { |
| r.results = null; |
| r.newIntents = null; |
| if (mMainStack) { |
| mService.reportResumedActivityLocked(r); |
| } |
| } |
| |
| return true; |
| } |
| } |