| /* |
| * 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 static com.android.server.am.ActivityManagerService.TAG; |
| import static com.android.server.am.ActivityManagerService.localLOGV; |
| import static com.android.server.am.ActivityManagerService.DEBUG_CLEANUP; |
| import static com.android.server.am.ActivityManagerService.DEBUG_CONFIGURATION; |
| import static com.android.server.am.ActivityManagerService.DEBUG_PAUSE; |
| import static com.android.server.am.ActivityManagerService.DEBUG_RESULTS; |
| import static com.android.server.am.ActivityManagerService.DEBUG_STACK; |
| import static com.android.server.am.ActivityManagerService.DEBUG_SWITCH; |
| import static com.android.server.am.ActivityManagerService.DEBUG_TASKS; |
| import static com.android.server.am.ActivityManagerService.DEBUG_TRANSITION; |
| import static com.android.server.am.ActivityManagerService.DEBUG_USER_LEAVING; |
| import static com.android.server.am.ActivityManagerService.DEBUG_VISBILITY; |
| import static com.android.server.am.ActivityManagerService.VALIDATE_TOKENS; |
| |
| import static com.android.server.am.ActivityStackSupervisor.DEBUG_ADD_REMOVE; |
| import static com.android.server.am.ActivityStackSupervisor.DEBUG_APP; |
| import static com.android.server.am.ActivityStackSupervisor.DEBUG_SAVED_STATE; |
| import static com.android.server.am.ActivityStackSupervisor.DEBUG_STATES; |
| import static com.android.server.am.ActivityStackSupervisor.HOME_STACK_ID; |
| |
| import com.android.internal.os.BatteryStatsImpl; |
| import com.android.server.Watchdog; |
| import com.android.server.am.ActivityManagerService.ItemMatcher; |
| import com.android.server.am.ActivityStackSupervisor.ActivityContainer; |
| import com.android.server.wm.AppTransition; |
| import com.android.server.wm.TaskGroup; |
| import com.android.server.wm.WindowManagerService; |
| |
| import android.app.Activity; |
| import android.app.ActivityManager; |
| import android.app.ActivityOptions; |
| import android.app.AppGlobals; |
| import android.app.IActivityController; |
| import android.app.IThumbnailReceiver; |
| import android.app.ResultInfo; |
| import android.app.ActivityManager.RunningTaskInfo; |
| import android.content.ComponentName; |
| import android.content.Intent; |
| import android.content.pm.ActivityInfo; |
| import android.content.pm.PackageManager; |
| 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.Bundle; |
| import android.os.Debug; |
| import android.os.Handler; |
| import android.os.IBinder; |
| import android.os.Looper; |
| import android.os.Message; |
| import android.os.RemoteException; |
| import android.os.SystemClock; |
| import android.os.SystemProperties; |
| import android.os.Trace; |
| import android.os.UserHandle; |
| import android.util.EventLog; |
| import android.util.Slog; |
| import android.view.Display; |
| |
| import java.io.FileDescriptor; |
| import java.io.PrintWriter; |
| import java.lang.ref.WeakReference; |
| import java.util.ArrayList; |
| import java.util.Iterator; |
| import java.util.List; |
| import java.util.Objects; |
| |
| /** |
| * State and management of a single stack of activities. |
| */ |
| final class ActivityStack { |
| |
| // Ticks during which we check progress while waiting for an app to launch. |
| static final int LAUNCH_TICK = 500; |
| |
| // 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 wait for the activity to tell us it has stopped before |
| // giving up. This is a good amount of time because we really need this |
| // from the application in order to get its saved state. |
| static final int STOP_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; |
| |
| // How long to wait for all background Activities to redraw following a call to |
| // convertToTranslucent(). |
| static final long TRANSLUCENT_CONVERSION_TIMEOUT = 2000; |
| |
| static final boolean SCREENSHOT_FORCE_565 = ActivityManager.isLowRamDeviceStatic(); |
| |
| enum ActivityState { |
| INITIALIZING, |
| RESUMED, |
| PAUSING, |
| PAUSED, |
| STOPPING, |
| STOPPED, |
| FINISHING, |
| DESTROYING, |
| DESTROYED |
| } |
| |
| final ActivityManagerService mService; |
| final WindowManagerService mWindowManager; |
| |
| /** |
| * The back history of all previous (and possibly still |
| * running) activities. It contains #TaskRecord objects. |
| */ |
| private ArrayList<TaskRecord> mTaskHistory = new ArrayList<TaskRecord>(); |
| |
| /** |
| * Used for validating app tokens with window manager. |
| */ |
| final ArrayList<TaskGroup> mValidateAppTokens = new ArrayList<TaskGroup>(); |
| |
| /** |
| * 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<ActivityRecord> mLRUActivities = 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>(); |
| |
| /** |
| * 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; |
| |
| /** |
| * Activities that specify No History must be removed once the user navigates away from them. |
| * If the device goes to sleep with such an activity in the paused state then we save it here |
| * and finish it later if another activity replaces it on wakeup. |
| */ |
| ActivityRecord mLastNoHistoryActivity = 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; |
| |
| // The topmost Activity passed to convertToTranslucent(). When non-null it means we are |
| // waiting for all Activities in mUndrawnActivitiesBelowTopTranslucent to be removed as they |
| // are drawn. When the last member of mUndrawnActivitiesBelowTopTranslucent is removed the |
| // Activity in mTranslucentActivityWaiting is notified via |
| // Activity.onTranslucentConversionComplete(false). If a timeout occurs prior to the last |
| // background activity being drawn then the same call will be made with a true value. |
| ActivityRecord mTranslucentActivityWaiting = null; |
| ArrayList<ActivityRecord> mUndrawnActivitiesBelowTopTranslucent = |
| new ArrayList<ActivityRecord>(); |
| |
| /** |
| * Set when we know we are going to be calling updateConfiguration() |
| * soon, so want to skip intermediate config checks. |
| */ |
| boolean mConfigWillChange; |
| |
| long mLaunchStartTime = 0; |
| long mFullyDrawnStartTime = 0; |
| |
| /** |
| * Save the most recent screenshot for reuse. This keeps Recents from taking two identical |
| * screenshots, one for the Recents thumbnail and one for the pauseActivity thumbnail. |
| */ |
| private ActivityRecord mLastScreenshotActivity = null; |
| private Bitmap mLastScreenshotBitmap = null; |
| |
| int mThumbnailWidth = -1; |
| int mThumbnailHeight = -1; |
| |
| int mCurrentUser; |
| |
| final int mStackId; |
| final ActivityContainer mActivityContainer; |
| /** The other stacks, in order, on the attached display. Updated at attach/detach time. */ |
| ArrayList<ActivityStack> mStacks; |
| /** The attached Display's unique identifier, or -1 if detached */ |
| int mDisplayId; |
| |
| /** Run all ActivityStacks through this */ |
| final ActivityStackSupervisor mStackSupervisor; |
| |
| static final int PAUSE_TIMEOUT_MSG = ActivityManagerService.FIRST_ACTIVITY_STACK_MSG + 1; |
| static final int DESTROY_TIMEOUT_MSG = ActivityManagerService.FIRST_ACTIVITY_STACK_MSG + 2; |
| static final int LAUNCH_TICK_MSG = ActivityManagerService.FIRST_ACTIVITY_STACK_MSG + 3; |
| static final int STOP_TIMEOUT_MSG = ActivityManagerService.FIRST_ACTIVITY_STACK_MSG + 4; |
| static final int DESTROY_ACTIVITIES_MSG = ActivityManagerService.FIRST_ACTIVITY_STACK_MSG + 5; |
| static final int TRANSLUCENT_TIMEOUT_MSG = ActivityManagerService.FIRST_ACTIVITY_STACK_MSG + 6; |
| |
| static class ScheduleDestroyArgs { |
| final ProcessRecord mOwner; |
| final boolean mOomAdj; |
| final String mReason; |
| ScheduleDestroyArgs(ProcessRecord owner, boolean oomAdj, String reason) { |
| mOwner = owner; |
| mOomAdj = oomAdj; |
| mReason = reason; |
| } |
| } |
| |
| final Handler mHandler; |
| |
| final class ActivityStackHandler extends Handler { |
| //public Handler() { |
| // if (localLOGV) Slog.v(TAG, "Handler started!"); |
| //} |
| ActivityStackHandler(Looper looper) { |
| super(looper); |
| } |
| |
| @Override |
| public void handleMessage(Message msg) { |
| switch (msg.what) { |
| case PAUSE_TIMEOUT_MSG: { |
| ActivityRecord r = (ActivityRecord)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 " + r); |
| synchronized (mService) { |
| if (r.app != null) { |
| mService.logAppTooSlow(r.app, r.pauseTime, "pausing " + r); |
| } |
| activityPausedLocked(r.appToken, true); |
| } |
| } break; |
| case LAUNCH_TICK_MSG: { |
| ActivityRecord r = (ActivityRecord)msg.obj; |
| synchronized (mService) { |
| if (r.continueLaunchTickingLocked()) { |
| mService.logAppTooSlow(r.app, r.launchTickTime, "launching " + r); |
| } |
| } |
| } break; |
| case DESTROY_TIMEOUT_MSG: { |
| ActivityRecord r = (ActivityRecord)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 " + r); |
| synchronized (mService) { |
| activityDestroyedLocked(r != null ? r.appToken : null); |
| } |
| } break; |
| case STOP_TIMEOUT_MSG: { |
| ActivityRecord r = (ActivityRecord)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 stop timeout for " + r); |
| synchronized (mService) { |
| if (r.isInHistory()) { |
| activityStoppedLocked(r, null, null, null); |
| } |
| } |
| } break; |
| case DESTROY_ACTIVITIES_MSG: { |
| ScheduleDestroyArgs args = (ScheduleDestroyArgs)msg.obj; |
| synchronized (mService) { |
| destroyActivitiesLocked(args.mOwner, args.mOomAdj, args.mReason); |
| } |
| } break; |
| case TRANSLUCENT_TIMEOUT_MSG: { |
| synchronized (mService) { |
| notifyActivityDrawnLocked(null); |
| } |
| } break; |
| } |
| } |
| } |
| |
| int numActivities() { |
| int count = 0; |
| for (int taskNdx = mTaskHistory.size() - 1; taskNdx >= 0; --taskNdx) { |
| count += mTaskHistory.get(taskNdx).mActivities.size(); |
| } |
| return count; |
| } |
| |
| ActivityStack(ActivityStackSupervisor.ActivityContainer activityContainer) { |
| mActivityContainer = activityContainer; |
| mStackSupervisor = activityContainer.getOuter(); |
| mService = mStackSupervisor.mService; |
| mHandler = new ActivityStackHandler(mService.mHandler.getLooper()); |
| mWindowManager = mService.mWindowManager; |
| mStackId = activityContainer.mStackId; |
| mCurrentUser = mService.mCurrentUserId; |
| } |
| |
| /** |
| * Checks whether the userid is a profile of the current user. |
| */ |
| private boolean isCurrentProfileLocked(int userId) { |
| if (userId == mCurrentUser) return true; |
| for (int i = 0; i < mService.mCurrentProfileIds.length; i++) { |
| if (mService.mCurrentProfileIds[i] == userId) return true; |
| } |
| return false; |
| } |
| |
| boolean okToShowLocked(ActivityRecord r) { |
| return isCurrentProfileLocked(r.userId) |
| || (r.info.flags & ActivityInfo.FLAG_SHOW_ON_LOCK_SCREEN) != 0; |
| } |
| |
| final ActivityRecord topRunningActivityLocked(ActivityRecord notTop) { |
| for (int taskNdx = mTaskHistory.size() - 1; taskNdx >= 0; --taskNdx) { |
| ActivityRecord r = mTaskHistory.get(taskNdx).topRunningActivityLocked(notTop); |
| if (r != null) { |
| return r; |
| } |
| } |
| return null; |
| } |
| |
| final ActivityRecord topRunningNonDelayedActivityLocked(ActivityRecord notTop) { |
| for (int taskNdx = mTaskHistory.size() - 1; taskNdx >= 0; --taskNdx) { |
| final TaskRecord task = mTaskHistory.get(taskNdx); |
| final ArrayList<ActivityRecord> activities = task.mActivities; |
| for (int activityNdx = activities.size() - 1; activityNdx >= 0; --activityNdx) { |
| ActivityRecord r = activities.get(activityNdx); |
| if (!r.finishing && !r.delayedResume && r != notTop && okToShowLocked(r)) { |
| return r; |
| } |
| } |
| } |
| 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) { |
| for (int taskNdx = mTaskHistory.size() - 1; taskNdx >= 0; --taskNdx) { |
| TaskRecord task = mTaskHistory.get(taskNdx); |
| if (task.taskId == taskId) { |
| continue; |
| } |
| ArrayList<ActivityRecord> activities = task.mActivities; |
| for (int i = activities.size() - 1; i >= 0; --i) { |
| final ActivityRecord r = activities.get(i); |
| // Note: the taskId check depends on real taskId fields being non-zero |
| if (!r.finishing && (token != r.appToken) && okToShowLocked(r)) { |
| return r; |
| } |
| } |
| } |
| return null; |
| } |
| |
| final ActivityRecord topActivity() { |
| // Iterate to find the first non-empty task stack. Note that this code can |
| // be simplified once we stop storing tasks with empty mActivities lists. |
| for (int taskNdx = mTaskHistory.size() - 1; taskNdx >= 0; --taskNdx) { |
| ArrayList<ActivityRecord> activities = mTaskHistory.get(taskNdx).mActivities; |
| final int topActivityNdx = activities.size() - 1; |
| if (topActivityNdx >= 0) { |
| return activities.get(topActivityNdx); |
| } |
| } |
| return null; |
| } |
| |
| final TaskRecord topTask() { |
| final int size = mTaskHistory.size(); |
| if (size > 0) { |
| return mTaskHistory.get(size - 1); |
| } |
| return null; |
| } |
| |
| TaskRecord taskForIdLocked(int id) { |
| for (int taskNdx = mTaskHistory.size() - 1; taskNdx >= 0; --taskNdx) { |
| final TaskRecord task = mTaskHistory.get(taskNdx); |
| if (task.taskId == id) { |
| return task; |
| } |
| } |
| return null; |
| } |
| |
| ActivityRecord isInStackLocked(IBinder token) { |
| final ActivityRecord r = ActivityRecord.forToken(token); |
| if (r != null) { |
| final TaskRecord task = r.task; |
| if (task.mActivities.contains(r) && mTaskHistory.contains(task)) { |
| if (task.stack != this) Slog.w(TAG, |
| "Illegal state! task does not point to stack it is in."); |
| return r; |
| } |
| } |
| return null; |
| } |
| |
| final boolean updateLRUListLocked(ActivityRecord r) { |
| final boolean hadit = mLRUActivities.remove(r); |
| mLRUActivities.add(r); |
| return hadit; |
| } |
| |
| final boolean isHomeStack() { |
| return mStackId == HOME_STACK_ID; |
| } |
| |
| final boolean isOnHomeDisplay() { |
| return isAttached() && |
| mActivityContainer.mActivityDisplay.mDisplayId == Display.DEFAULT_DISPLAY; |
| } |
| |
| final void moveToFront() { |
| if (isAttached()) { |
| if (isOnHomeDisplay()) { |
| mStackSupervisor.moveHomeStack(isHomeStack()); |
| } |
| mStacks.remove(this); |
| mStacks.add(this); |
| } |
| } |
| |
| final boolean isAttached() { |
| return mStacks != null; |
| } |
| |
| /** |
| * Returns the top activity in any existing task matching the given |
| * Intent. Returns null if no such task is found. |
| */ |
| ActivityRecord findTaskLocked(ActivityRecord target) { |
| Intent intent = target.intent; |
| ActivityInfo info = target.info; |
| ComponentName cls = intent.getComponent(); |
| if (info.targetActivity != null) { |
| cls = new ComponentName(info.packageName, info.targetActivity); |
| } |
| final int userId = UserHandle.getUserId(info.applicationInfo.uid); |
| boolean isDocument = intent != null & intent.isDocument(); |
| // If documentData is non-null then it must match the existing task data. |
| Uri documentData = isDocument ? intent.getData() : null; |
| |
| if (DEBUG_TASKS) Slog.d(TAG, "Looking for task of " + target + " in " + this); |
| for (int taskNdx = mTaskHistory.size() - 1; taskNdx >= 0; --taskNdx) { |
| final TaskRecord task = mTaskHistory.get(taskNdx); |
| if (task.userId != userId) { |
| // Looking for a different task. |
| if (DEBUG_TASKS) Slog.d(TAG, "Skipping " + task + ": different user"); |
| continue; |
| } |
| final ActivityRecord r = task.getTopActivity(); |
| if (r == null || r.finishing || r.userId != userId || |
| r.launchMode == ActivityInfo.LAUNCH_SINGLE_INSTANCE) { |
| if (DEBUG_TASKS) Slog.d(TAG, "Skipping " + task + ": mismatch root " + r); |
| continue; |
| } |
| |
| final Intent taskIntent = task.intent; |
| final Intent affinityIntent = task.affinityIntent; |
| final boolean taskIsDocument; |
| final Uri taskDocumentData; |
| if (taskIntent != null && taskIntent.isDocument()) { |
| taskIsDocument = true; |
| taskDocumentData = taskIntent.getData(); |
| } else if (affinityIntent != null && affinityIntent.isDocument()) { |
| taskIsDocument = true; |
| taskDocumentData = affinityIntent.getData(); |
| } else { |
| taskIsDocument = false; |
| taskDocumentData = null; |
| } |
| |
| if (DEBUG_TASKS) Slog.d(TAG, "Comparing existing cls=" |
| + taskIntent.getComponent().flattenToShortString() |
| + "/aff=" + r.task.affinity + " to new cls=" |
| + intent.getComponent().flattenToShortString() + "/aff=" + info.taskAffinity); |
| if (!isDocument && !taskIsDocument && task.affinity != null) { |
| if (task.affinity.equals(target.taskAffinity)) { |
| if (DEBUG_TASKS) Slog.d(TAG, "Found matching affinity!"); |
| return r; |
| } |
| } else if (taskIntent != null && taskIntent.getComponent().equals(cls) && |
| Objects.equals(documentData, taskDocumentData)) { |
| if (DEBUG_TASKS) Slog.d(TAG, "Found matching class!"); |
| //dump(); |
| if (DEBUG_TASKS) Slog.d(TAG, "For Intent " + intent + " bringing to top: " |
| + r.intent); |
| return r; |
| } else if (affinityIntent != null && affinityIntent.getComponent().equals(cls) && |
| Objects.equals(documentData, taskDocumentData)) { |
| if (DEBUG_TASKS) Slog.d(TAG, "Found matching class!"); |
| //dump(); |
| if (DEBUG_TASKS) Slog.d(TAG, "For Intent " + intent + " bringing to top: " |
| + r.intent); |
| return r; |
| } else if (DEBUG_TASKS) { |
| Slog.d(TAG, "Not a match: " + task); |
| } |
| } |
| |
| 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. |
| */ |
| ActivityRecord findActivityLocked(Intent intent, ActivityInfo info) { |
| ComponentName cls = intent.getComponent(); |
| if (info.targetActivity != null) { |
| cls = new ComponentName(info.packageName, info.targetActivity); |
| } |
| final int userId = UserHandle.getUserId(info.applicationInfo.uid); |
| |
| for (int taskNdx = mTaskHistory.size() - 1; taskNdx >= 0; --taskNdx) { |
| TaskRecord task = mTaskHistory.get(taskNdx); |
| if (!isCurrentProfileLocked(task.userId)) { |
| return null; |
| } |
| final ArrayList<ActivityRecord> activities = task.mActivities; |
| for (int activityNdx = activities.size() - 1; activityNdx >= 0; --activityNdx) { |
| ActivityRecord r = activities.get(activityNdx); |
| if (!r.finishing && r.intent.getComponent().equals(cls) && r.userId == userId) { |
| //Slog.i(TAG, "Found matching class!"); |
| //dump(); |
| //Slog.i(TAG, "For Intent " + intent + " bringing to top: " + r.intent); |
| return r; |
| } |
| } |
| } |
| |
| return null; |
| } |
| |
| /* |
| * Move the activities around in the stack to bring a user to the foreground. |
| */ |
| final void switchUserLocked(int userId) { |
| if (mCurrentUser == userId) { |
| return; |
| } |
| mCurrentUser = userId; |
| |
| // Move userId's tasks to the top. |
| int index = mTaskHistory.size(); |
| for (int i = 0; i < index; ) { |
| TaskRecord task = mTaskHistory.get(i); |
| if (isCurrentProfileLocked(task.userId)) { |
| if (DEBUG_TASKS) Slog.d(TAG, "switchUserLocked: stack=" + getStackId() + |
| " moving " + task + " to top"); |
| mTaskHistory.remove(i); |
| mTaskHistory.add(task); |
| --index; |
| // Use same value for i. |
| } else { |
| ++i; |
| } |
| } |
| if (VALIDATE_TOKENS) { |
| validateAppTokensLocked(); |
| } |
| } |
| |
| void minimalResumeActivityLocked(ActivityRecord r) { |
| r.state = ActivityState.RESUMED; |
| if (DEBUG_STATES) Slog.v(TAG, "Moving to RESUMED: " + r |
| + " (starting new instance)"); |
| r.stopped = false; |
| mResumedActivity = r; |
| r.task.touchActiveTime(); |
| mService.addRecentTaskLocked(r.task); |
| completeResumeLocked(r); |
| mStackSupervisor.checkReadyForSleepLocked(); |
| setLaunchTime(r); |
| if (DEBUG_SAVED_STATE) Slog.i(TAG, "Launch completed; removing icicle of " + r.icicle); |
| } |
| |
| private void startLaunchTraces() { |
| if (mFullyDrawnStartTime != 0) { |
| Trace.asyncTraceEnd(Trace.TRACE_TAG_ACTIVITY_MANAGER, "drawing", 0); |
| } |
| Trace.asyncTraceBegin(Trace.TRACE_TAG_ACTIVITY_MANAGER, "launching", 0); |
| Trace.asyncTraceBegin(Trace.TRACE_TAG_ACTIVITY_MANAGER, "drawing", 0); |
| } |
| |
| private void stopFullyDrawnTraceIfNeeded() { |
| if (mFullyDrawnStartTime != 0 && mLaunchStartTime == 0) { |
| Trace.asyncTraceEnd(Trace.TRACE_TAG_ACTIVITY_MANAGER, "drawing", 0); |
| mFullyDrawnStartTime = 0; |
| } |
| } |
| |
| void setLaunchTime(ActivityRecord r) { |
| if (r.displayStartTime == 0) { |
| r.fullyDrawnStartTime = r.displayStartTime = SystemClock.uptimeMillis(); |
| if (mLaunchStartTime == 0) { |
| startLaunchTraces(); |
| mLaunchStartTime = mFullyDrawnStartTime = r.displayStartTime; |
| } |
| } else if (mLaunchStartTime == 0) { |
| startLaunchTraces(); |
| mLaunchStartTime = mFullyDrawnStartTime = SystemClock.uptimeMillis(); |
| } |
| } |
| |
| void clearLaunchTime(ActivityRecord r) { |
| // Make sure that there is no activity waiting for this to launch. |
| if (mStackSupervisor.mWaitingActivityLaunched.isEmpty()) { |
| r.displayStartTime = r.fullyDrawnStartTime = 0; |
| } else { |
| mStackSupervisor.removeTimeoutsForActivityLocked(r); |
| mStackSupervisor.scheduleIdleTimeoutLocked(r); |
| } |
| } |
| |
| void awakeFromSleepingLocked() { |
| // Ensure activities are no longer sleeping. |
| for (int taskNdx = mTaskHistory.size() - 1; taskNdx >= 0; --taskNdx) { |
| final ArrayList<ActivityRecord> activities = mTaskHistory.get(taskNdx).mActivities; |
| for (int activityNdx = activities.size() - 1; activityNdx >= 0; --activityNdx) { |
| activities.get(activityNdx).setSleeping(false); |
| } |
| } |
| } |
| |
| /** |
| * @return true if something must be done before going to sleep. |
| */ |
| boolean checkReadyForSleepLocked() { |
| 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 true; |
| } |
| 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 true; |
| } |
| |
| return false; |
| } |
| |
| void goToSleep() { |
| ensureActivitiesVisibleLocked(null, 0); |
| |
| // Make sure any stopped but visible activities are now sleeping. |
| // This ensures that the activity's onStop() is called. |
| for (int taskNdx = mTaskHistory.size() - 1; taskNdx >= 0; --taskNdx) { |
| final ArrayList<ActivityRecord> activities = mTaskHistory.get(taskNdx).mActivities; |
| for (int activityNdx = activities.size() - 1; activityNdx >= 0; --activityNdx) { |
| final ActivityRecord r = activities.get(activityNdx); |
| if (r.state == ActivityState.STOPPING || r.state == ActivityState.STOPPED) { |
| r.setSleeping(true); |
| } |
| } |
| } |
| } |
| |
| public final Bitmap screenshotActivities(ActivityRecord who) { |
| if (who.noDisplay) { |
| return null; |
| } |
| |
| TaskRecord tr = who.task; |
| if (mService.getMostRecentTask() != tr && tr.intent != null && |
| (tr.intent.getFlags() & Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS) != 0) { |
| // If this task is being excluded from recents, we don't want to take |
| // the expense of capturing a thumbnail, since we will never show it. |
| return null; |
| } |
| |
| Resources res = mService.mContext.getResources(); |
| int w = mThumbnailWidth; |
| int h = mThumbnailHeight; |
| if (w < 0) { |
| if (SystemProperties.getBoolean("persist.recents.use_alternate", false)) { |
| mThumbnailWidth = w = |
| res.getDimensionPixelSize(com.android.internal.R.dimen.recents_thumbnail_width); |
| mThumbnailHeight = h = |
| res.getDimensionPixelSize(com.android.internal.R.dimen.recents_thumbnail_height); |
| } else { |
| 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) { |
| if (who != mLastScreenshotActivity || mLastScreenshotBitmap == null |
| || mLastScreenshotActivity.state == ActivityState.RESUMED |
| || mLastScreenshotBitmap.getWidth() != w |
| || mLastScreenshotBitmap.getHeight() != h) { |
| mLastScreenshotActivity = who; |
| mLastScreenshotBitmap = mWindowManager.screenshotApplications( |
| who.appToken, Display.DEFAULT_DISPLAY, w, h, SCREENSHOT_FORCE_565); |
| } |
| if (mLastScreenshotBitmap != null) { |
| return mLastScreenshotBitmap.copy(mLastScreenshotBitmap.getConfig(), true); |
| } |
| } |
| return null; |
| } |
| |
| final void startPausingLocked(boolean userLeaving, boolean uiSleeping) { |
| if (mPausingActivity != null) { |
| Slog.e(TAG, "Trying to pause when pause is already pending for " |
| + mPausingActivity, new RuntimeException("here").fillInStackTrace()); |
| } |
| ActivityRecord prev = mResumedActivity; |
| if (prev == null) { |
| Slog.e(TAG, "Trying to pause when nothing is resumed", |
| new RuntimeException("here").fillInStackTrace()); |
| mStackSupervisor.resumeTopActivitiesLocked(); |
| return; |
| } |
| |
| if (mActivityContainer.mParentActivity == null) { |
| // Top level stack, not a child. Look for child stacks. |
| mStackSupervisor.pauseChildStacks(prev, userLeaving, uiSleeping); |
| } |
| |
| if (DEBUG_STATES) Slog.v(TAG, "Moving to PAUSING: " + prev); |
| else if (DEBUG_PAUSE) Slog.v(TAG, "Start pausing: " + prev); |
| mResumedActivity = null; |
| mPausingActivity = prev; |
| mLastPausedActivity = prev; |
| mLastNoHistoryActivity = (prev.intent.getFlags() & Intent.FLAG_ACTIVITY_NO_HISTORY) != 0 |
| || (prev.info.flags & ActivityInfo.FLAG_NO_HISTORY) != 0 ? prev : null; |
| prev.state = ActivityState.PAUSING; |
| prev.task.touchActiveTime(); |
| clearLaunchTime(prev); |
| final ActivityRecord next = mStackSupervisor.topRunningActivityLocked(); |
| if (next == null || next.task != prev.task) { |
| prev.updateThumbnail(screenshotActivities(prev), null); |
| } |
| stopFullyDrawnTraceIfNeeded(); |
| |
| 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, |
| prev.userId, System.identityHashCode(prev), |
| prev.shortComponentName); |
| mService.updateUsageStats(prev, false); |
| prev.app.thread.schedulePauseActivity(prev.appToken, prev.finishing, |
| userLeaving, prev.configChangeFlags); |
| } catch (Exception e) { |
| // Ignore exception, if process died other code will cleanup. |
| Slog.w(TAG, "Exception thrown during pause", e); |
| mPausingActivity = null; |
| mLastPausedActivity = null; |
| mLastNoHistoryActivity = null; |
| } |
| } else { |
| mPausingActivity = null; |
| mLastPausedActivity = null; |
| mLastNoHistoryActivity = null; |
| } |
| |
| // If we are not going to sleep, we want to ensure the device is |
| // awake until the next activity is started. |
| if (!mService.isSleepingOrShuttingDown()) { |
| mStackSupervisor.acquireLaunchWakelock(); |
| } |
| |
| 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; |
| prev.pauseTime = SystemClock.uptimeMillis(); |
| 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."); |
| mStackSupervisor.getFocusedStack().resumeTopActivityLocked(null); |
| } |
| } |
| |
| final void activityPausedLocked(IBinder token, boolean timeout) { |
| if (DEBUG_PAUSE) Slog.v( |
| TAG, "Activity paused: token=" + token + ", timeout=" + timeout); |
| |
| final ActivityRecord r = isInStackLocked(token); |
| if (r != null) { |
| mHandler.removeMessages(PAUSE_TIMEOUT_MSG, r); |
| if (mPausingActivity == r) { |
| if (DEBUG_STATES) Slog.v(TAG, "Moving to PAUSED: " + r |
| + (timeout ? " (due to timeout)" : " (pause complete)")); |
| r.state = ActivityState.PAUSED; |
| completePauseLocked(); |
| } else { |
| EventLog.writeEvent(EventLogTags.AM_FAILED_TO_PAUSE, |
| r.userId, System.identityHashCode(r), r.shortComponentName, |
| mPausingActivity != null |
| ? mPausingActivity.shortComponentName : "(none)"); |
| } |
| } |
| } |
| |
| final void activityStoppedLocked(ActivityRecord r, Bundle icicle, Bitmap thumbnail, |
| CharSequence description) { |
| if (r.state != ActivityState.STOPPING) { |
| Slog.i(TAG, "Activity reported stop, but no longer stopping: " + r); |
| mHandler.removeMessages(STOP_TIMEOUT_MSG, r); |
| return; |
| } |
| if (DEBUG_SAVED_STATE) Slog.i(TAG, "Saving icicle of " + r + ": " + icicle); |
| if (icicle != null) { |
| // If icicle is null, this is happening due to a timeout, so we |
| // haven't really saved the state. |
| r.icicle = icicle; |
| r.haveState = true; |
| r.launchCount = 0; |
| r.updateThumbnail(thumbnail, description); |
| } |
| if (!r.stopped) { |
| if (DEBUG_STATES) Slog.v(TAG, "Moving to STOPPED: " + r + " (stop complete)"); |
| mHandler.removeMessages(STOP_TIMEOUT_MSG, r); |
| r.stopped = true; |
| r.state = ActivityState.STOPPED; |
| if (r.finishing) { |
| r.clearOptionsLocked(); |
| } else { |
| if (r.configDestroy) { |
| destroyActivityLocked(r, true, false, "stop-config"); |
| mStackSupervisor.resumeTopActivitiesLocked(); |
| } else { |
| mStackSupervisor.updatePreviousProcessLocked(r); |
| } |
| } |
| } |
| } |
| |
| private 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, false); |
| } else if (prev.app != null) { |
| if (DEBUG_PAUSE) Slog.v(TAG, "Enqueueing pending stop: " + prev); |
| if (prev.waitingVisible) { |
| prev.waitingVisible = false; |
| mStackSupervisor.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, false, "pause-config"); |
| } else { |
| mStackSupervisor.mStoppingActivities.add(prev); |
| if (mStackSupervisor.mStoppingActivities.size() > 3 || |
| prev.frontOfTask && mTaskHistory.size() <= 1) { |
| // If we already have a few activities waiting to stop, |
| // then give up on things going idle and start clearing |
| // them out. Or if r is the last of activity of the last task the stack |
| // will be empty and must be cleared immediately. |
| if (DEBUG_PAUSE) Slog.v(TAG, "To many pending stops, forcing idle"); |
| mStackSupervisor.scheduleIdleLocked(); |
| } else { |
| mStackSupervisor.checkReadyForSleepLocked(); |
| } |
| } |
| } else { |
| if (DEBUG_PAUSE) Slog.v(TAG, "App died during pause, not stopping: " + prev); |
| prev = null; |
| } |
| mPausingActivity = null; |
| } |
| |
| final ActivityStack topStack = mStackSupervisor.getFocusedStack(); |
| if (!mService.isSleepingOrShuttingDown()) { |
| mStackSupervisor.resumeTopActivitiesLocked(topStack, prev, null); |
| } else { |
| mStackSupervisor.checkReadyForSleepLocked(); |
| ActivityRecord top = topStack.topRunningActivityLocked(null); |
| if (top == null || (prev != null && top != prev)) { |
| // If there are no more activities available to run, |
| // do resume anyway to start something. Also if the top |
| // activity on the stack is not the just paused activity, |
| // we need to go ahead and resume it to ensure we complete |
| // an in-flight app switch. |
| mStackSupervisor.resumeTopActivitiesLocked(topStack, null, null); |
| } |
| } |
| |
| if (prev != null) { |
| prev.resumeKeyDispatchingLocked(); |
| |
| if (prev.app != null && prev.cpuTimeAtResume > 0 |
| && mService.mBatteryStatsService.isOnBattery()) { |
| long diff; |
| synchronized (mService.mProcessCpuThread) { |
| diff = mService.mProcessCpuTracker.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 void completeResumeLocked(ActivityRecord next) { |
| next.idle = false; |
| next.results = null; |
| next.newIntents = null; |
| if (next.nowVisible) { |
| // We won't get a call to reportActivityVisibleLocked() so dismiss lockscreen now. |
| mStackSupervisor.dismissKeyguard(); |
| } |
| |
| // schedule an idle timeout in case the app doesn't do it for us. |
| mStackSupervisor.scheduleIdleTimeoutLocked(next); |
| |
| mStackSupervisor.reportResumedActivityLocked(next); |
| |
| next.resumeKeyDispatchingLocked(); |
| 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.mProcessCpuThread) { |
| next.cpuTimeAtResume = mService.mProcessCpuTracker.getCpuTimeForPid(next.app.pid); |
| } |
| } else { |
| next.cpuTimeAtResume = 0; // Couldn't get the cpu time of process |
| } |
| } |
| |
| /** |
| * Determine if home should be visible below the passed record. |
| * @param record activity we are querying for. |
| * @return true if home is visible below the passed activity, false otherwise. |
| */ |
| boolean isActivityOverHome(ActivityRecord record) { |
| // Start at record and go down, look for either home or a visible fullscreen activity. |
| final TaskRecord recordTask = record.task; |
| for (int taskNdx = mTaskHistory.indexOf(recordTask); taskNdx >= 0; --taskNdx) { |
| TaskRecord task = mTaskHistory.get(taskNdx); |
| final ArrayList<ActivityRecord> activities = task.mActivities; |
| final int startNdx = |
| task == recordTask ? activities.indexOf(record) : activities.size() - 1; |
| for (int activityNdx = startNdx; activityNdx >= 0; --activityNdx) { |
| final ActivityRecord r = activities.get(activityNdx); |
| if (r.isHomeActivity()) { |
| return true; |
| } |
| if (!r.finishing && r.fullscreen) { |
| // Passed activity is over a fullscreen activity. |
| return false; |
| } |
| } |
| if (task.mOnTopOfHome) { |
| // Got to the bottom of a task on top of home without finding a visible fullscreen |
| // activity. Home is visible. |
| return true; |
| } |
| } |
| // Got to the bottom of this stack and still don't know. If this is over the home stack |
| // then record is over home. May not work if we ever get more than two layers. |
| return mStackSupervisor.isFrontStack(this); |
| } |
| |
| /** |
| * Version of ensureActivitiesVisible that can easily be called anywhere. |
| */ |
| final boolean ensureActivitiesVisibleLocked(ActivityRecord starting, int configChanges) { |
| return ensureActivitiesVisibleLocked(starting, configChanges, false); |
| } |
| |
| final boolean ensureActivitiesVisibleLocked(ActivityRecord starting, int configChanges, |
| boolean forceHomeShown) { |
| ActivityRecord r = topRunningActivityLocked(null); |
| return r != null && |
| ensureActivitiesVisibleLocked(r, starting, null, configChanges, forceHomeShown); |
| } |
| |
| /** |
| * Make sure that all activities that need to be visible (that is, they |
| * currently can be seen by the user) actually are. |
| */ |
| final boolean ensureActivitiesVisibleLocked(ActivityRecord top, ActivityRecord starting, |
| String onlyThisProcess, int configChanges, boolean forceHomeShown) { |
| if (DEBUG_VISBILITY) Slog.v( |
| TAG, "ensureActivitiesVisible behind " + top |
| + " configChanges=0x" + Integer.toHexString(configChanges)); |
| |
| if (mTranslucentActivityWaiting != top) { |
| mUndrawnActivitiesBelowTopTranslucent.clear(); |
| if (mTranslucentActivityWaiting != null) { |
| // Call the callback with a timeout indication. |
| notifyActivityDrawnLocked(null); |
| mTranslucentActivityWaiting = null; |
| } |
| mHandler.removeMessages(TRANSLUCENT_TIMEOUT_MSG); |
| } |
| |
| // If the top activity is not fullscreen, then we need to |
| // make sure any activities under it are now visible. |
| boolean aboveTop = true; |
| boolean showHomeBehindStack = false; |
| boolean behindFullscreen = !mStackSupervisor.isFrontStack(this) && |
| !(forceHomeShown && isHomeStack()); |
| for (int taskNdx = mTaskHistory.size() - 1; taskNdx >= 0; --taskNdx) { |
| final TaskRecord task = mTaskHistory.get(taskNdx); |
| final ArrayList<ActivityRecord> activities = task.mActivities; |
| for (int activityNdx = activities.size() - 1; activityNdx >= 0; --activityNdx) { |
| final ActivityRecord r = activities.get(activityNdx); |
| if (r.finishing) { |
| continue; |
| } |
| if (aboveTop && r != top) { |
| continue; |
| } |
| aboveTop = false; |
| if (!behindFullscreen) { |
| if (DEBUG_VISBILITY) Slog.v( |
| TAG, "Make visible? " + r + " finishing=" + r.finishing |
| + " state=" + r.state); |
| |
| 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); |
| r.visible = true; |
| mWindowManager.setAppVisibility(r.appToken, true); |
| } |
| if (r != starting) { |
| mStackSupervisor.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 { |
| if (mTranslucentActivityWaiting != null) { |
| mUndrawnActivitiesBelowTopTranslucent.add(r); |
| } |
| mWindowManager.setAppVisibility(r.appToken, true); |
| r.sleeping = false; |
| r.app.pendingUiClean = true; |
| r.app.thread.scheduleWindowVisibility(r.appToken, 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, "Fullscreen: at " + r); |
| behindFullscreen = true; |
| showHomeBehindStack = false; |
| } else if (isActivityOverHome(r)) { |
| if (DEBUG_VISBILITY) Slog.v(TAG, "Showing home: at " + r); |
| showHomeBehindStack = true; |
| behindFullscreen = !isHomeStack() && r.frontOfTask && task.mOnTopOfHome; |
| } |
| } else { |
| if (DEBUG_VISBILITY) Slog.v( |
| TAG, "Make invisible? " + r + " finishing=" + r.finishing |
| + " state=" + r.state |
| + " behindFullscreen=" + behindFullscreen); |
| // Now for any activities that aren't visible to the user, make |
| // sure they no longer are keeping the screen frozen. |
| if (r.visible) { |
| if (DEBUG_VISBILITY) Slog.v(TAG, "Making invisible: " + r); |
| r.visible = false; |
| try { |
| mWindowManager.setAppVisibility(r.appToken, false); |
| switch (r.state) { |
| case STOPPING: |
| case STOPPED: |
| if (r.app != null && r.app.thread != null) { |
| if (DEBUG_VISBILITY) Slog.v( |
| TAG, "Scheduling invisibility: " + r); |
| r.app.thread.scheduleWindowVisibility(r.appToken, false); |
| } |
| break; |
| |
| case INITIALIZING: |
| case RESUMED: |
| case PAUSING: |
| case PAUSED: |
| // This case created for transitioning activities from |
| // translucent to opaque {@link Activity#convertToOpaque}. |
| if (!mStackSupervisor.mStoppingActivities.contains(r)) { |
| mStackSupervisor.mStoppingActivities.add(r); |
| } |
| mStackSupervisor.scheduleIdleLocked(); |
| break; |
| |
| default: |
| break; |
| } |
| } 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); |
| } |
| } |
| } |
| } |
| return showHomeBehindStack; |
| } |
| |
| void convertToTranslucent(ActivityRecord r) { |
| mTranslucentActivityWaiting = r; |
| mUndrawnActivitiesBelowTopTranslucent.clear(); |
| mHandler.sendEmptyMessageDelayed(TRANSLUCENT_TIMEOUT_MSG, TRANSLUCENT_CONVERSION_TIMEOUT); |
| } |
| |
| /** |
| * Called as activities below the top translucent activity are redrawn. When the last one is |
| * redrawn notify the top activity by calling |
| * {@link Activity#onTranslucentConversionComplete}. |
| * |
| * @param r The most recent background activity to be drawn. Or, if r is null then a timeout |
| * occurred and the activity will be notified immediately. |
| */ |
| void notifyActivityDrawnLocked(ActivityRecord r) { |
| if ((r == null) |
| || (mUndrawnActivitiesBelowTopTranslucent.remove(r) && |
| mUndrawnActivitiesBelowTopTranslucent.isEmpty())) { |
| // The last undrawn activity below the top has just been drawn. If there is an |
| // opaque activity at the top, notify it that it can become translucent safely now. |
| final ActivityRecord waitingActivity = mTranslucentActivityWaiting; |
| mTranslucentActivityWaiting = null; |
| mUndrawnActivitiesBelowTopTranslucent.clear(); |
| mHandler.removeMessages(TRANSLUCENT_TIMEOUT_MSG); |
| |
| if (waitingActivity != null) { |
| mWindowManager.setWindowOpaque(waitingActivity.appToken, false); |
| if (waitingActivity.app != null && waitingActivity.app.thread != null) { |
| try { |
| waitingActivity.app.thread.scheduleTranslucentConversionComplete( |
| waitingActivity.appToken, r != null); |
| } catch (RemoteException e) { |
| } |
| } |
| } |
| } |
| } |
| |
| /** If any activities below the top running one are in the INITIALIZING state and they have a |
| * starting window displayed then remove that starting window. It is possible that the activity |
| * in this state will never resumed in which case that starting window will be orphaned. */ |
| void cancelInitializingActivities() { |
| final ActivityRecord topActivity = topRunningActivityLocked(null); |
| boolean aboveTop = true; |
| for (int taskNdx = mTaskHistory.size() - 1; taskNdx >= 0; --taskNdx) { |
| final ArrayList<ActivityRecord> activities = mTaskHistory.get(taskNdx).mActivities; |
| for (int activityNdx = activities.size() - 1; activityNdx >= 0; --activityNdx) { |
| final ActivityRecord r = activities.get(activityNdx); |
| if (aboveTop) { |
| if (r == topActivity) { |
| aboveTop = false; |
| } |
| continue; |
| } |
| |
| if (r.state == ActivityState.INITIALIZING && r.mStartingWindowShown) { |
| if (DEBUG_VISBILITY) Slog.w(TAG, "Found orphaned starting window " + r); |
| r.mStartingWindowShown = false; |
| mWindowManager.removeAppStartingWindow(r.appToken); |
| } |
| } |
| } |
| } |
| |
| /** |
| * 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) { |
| return resumeTopActivityLocked(prev, null); |
| } |
| |
| final boolean resumeTopActivityLocked(ActivityRecord prev, Bundle options) { |
| if (ActivityManagerService.DEBUG_LOCKSCREEN) mService.logLockScreen(""); |
| |
| ActivityRecord parent = mActivityContainer.mParentActivity; |
| if (parent != null && parent.state != ActivityState.RESUMED) { |
| // Do not resume this stack if its parent is not resumed. |
| // TODO: If in a loop, make sure that parent stack resumeTopActivity is called 1st. |
| return false; |
| } |
| |
| cancelInitializingActivities(); |
| |
| // 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 = mStackSupervisor.mUserLeaving; |
| mStackSupervisor.mUserLeaving = false; |
| |
| if (next == null) { |
| // There are no more activities! Let's just start up the |
| // Launcher... |
| ActivityOptions.abort(options); |
| if (DEBUG_STATES) Slog.d(TAG, "resumeTopActivityLocked: No more activities go home"); |
| if (DEBUG_STACK) mStackSupervisor.validateTopActivitiesLocked(); |
| // Only resume home if on home display |
| return isOnHomeDisplay() && mStackSupervisor.resumeHomeActivity(prev); |
| } |
| |
| next.delayedResume = false; |
| |
| // If the top activity is the resumed one, nothing to do. |
| if (mResumedActivity == next && next.state == ActivityState.RESUMED && |
| mStackSupervisor.allResumedActivitiesComplete()) { |
| // Make sure we have executed any pending transitions, since there |
| // should be nothing left to do at this point. |
| mWindowManager.executeAppTransition(); |
| mNoAnimActivities.clear(); |
| ActivityOptions.abort(options); |
| if (DEBUG_STATES) Slog.d(TAG, "resumeTopActivityLocked: Top activity resumed " + next); |
| if (DEBUG_STACK) mStackSupervisor.validateTopActivitiesLocked(); |
| return false; |
| } |
| |
| final TaskRecord nextTask = next.task; |
| final TaskRecord prevTask = prev != null ? prev.task : null; |
| if (prevTask != null && prevTask.mOnTopOfHome && prev.finishing && prev.frontOfTask) { |
| if (DEBUG_STACK) mStackSupervisor.validateTopActivitiesLocked(); |
| if (prevTask == nextTask) { |
| prevTask.setFrontOfTask(); |
| } else if (prevTask != topTask()) { |
| // This task is going away but it was supposed to return to the home task. |
| // Now the task above it has to return to the home task instead. |
| final int taskNdx = mTaskHistory.indexOf(prevTask) + 1; |
| mTaskHistory.get(taskNdx).mOnTopOfHome = true; |
| } else { |
| if (DEBUG_STATES && isOnHomeDisplay()) Slog.d(TAG, |
| "resumeTopActivityLocked: Launching home next"); |
| // Only resume home if on home display |
| return isOnHomeDisplay() && mStackSupervisor.resumeHomeActivity(prev); |
| } |
| } |
| |
| // 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.isSleepingOrShuttingDown() |
| && mLastPausedActivity == next |
| && mStackSupervisor.allPausedActivitiesComplete()) { |
| // Make sure we have executed any pending transitions, since there |
| // should be nothing left to do at this point. |
| mWindowManager.executeAppTransition(); |
| mNoAnimActivities.clear(); |
| ActivityOptions.abort(options); |
| if (DEBUG_STATES) Slog.d(TAG, "resumeTopActivityLocked: Going to sleep and all paused"); |
| if (DEBUG_STACK) mStackSupervisor.validateTopActivitiesLocked(); |
| return false; |
| } |
| |
| // Make sure that the user who owns this activity is started. If not, |
| // we will just leave it as is because someone should be bringing |
| // another user's activities to the top of the stack. |
| if (mService.mStartedUsers.get(next.userId) == null) { |
| Slog.w(TAG, "Skipping resume of top activity " + next |
| + ": user " + next.userId + " is stopped"); |
| if (DEBUG_STACK) mStackSupervisor.validateTopActivitiesLocked(); |
| return false; |
| } |
| |
| // The activity may be waiting for stop, but that is no longer |
| // appropriate for it. |
| mStackSupervisor.mStoppingActivities.remove(next); |
| mStackSupervisor.mGoingToSleepActivities.remove(next); |
| next.sleeping = false; |
| mStackSupervisor.mWaitingVisibleActivities.remove(next); |
| |
| next.updateOptionsLocked(options); |
| |
| 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 (!mStackSupervisor.allPausedActivitiesComplete()) { |
| if (DEBUG_SWITCH || DEBUG_PAUSE || DEBUG_STATES) Slog.v(TAG, |
| "resumeTopActivityLocked: Skip resume: some activity pausing."); |
| if (DEBUG_STACK) mStackSupervisor.validateTopActivitiesLocked(); |
| 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... |
| boolean pausing = mStackSupervisor.pauseBackStacks(userLeaving); |
| if (mResumedActivity != null) { |
| pausing = true; |
| startPausingLocked(userLeaving, false); |
| if (DEBUG_STATES) Slog.d(TAG, "resumeTopActivityLocked: Pausing " + mResumedActivity); |
| } |
| if (pausing) { |
| if (DEBUG_SWITCH || DEBUG_STATES) Slog.v(TAG, |
| "resumeTopActivityLocked: Skip resume: need to start pausing"); |
| // At this point we want to put the upcoming activity's process |
| // at the top of the LRU list, since we know we will be needing it |
| // very soon and it would be a waste to let it get killed if it |
| // happens to be sitting towards the end. |
| if (next.app != null && next.app.thread != null) { |
| // No reason to do full oom adj update here; we'll let that |
| // happen whenever it needs to later. |
| mService.updateLruProcessLocked(next.app, true, null); |
| } |
| if (DEBUG_STACK) mStackSupervisor.validateTopActivitiesLocked(); |
| return true; |
| } |
| |
| // If the most recent activity was noHistory but was only stopped rather |
| // than stopped+finished because the device went to sleep, we need to make |
| // sure to finish it as we're making a new activity topmost. |
| if (mService.mSleeping && mLastNoHistoryActivity != null && |
| !mLastNoHistoryActivity.finishing) { |
| if (DEBUG_STATES) Slog.d(TAG, "no-history finish of " + mLastNoHistoryActivity + |
| " on new resume"); |
| requestFinishActivityLocked(mLastNoHistoryActivity.appToken, Activity.RESULT_CANCELED, |
| null, "no-history", false); |
| mLastNoHistoryActivity = null; |
| } |
| |
| if (prev != null && prev != next) { |
| if (!prev.waitingVisible && next != null && !next.nowVisible) { |
| prev.waitingVisible = true; |
| mStackSupervisor.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) { |
| mWindowManager.setAppVisibility(prev.appToken, 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, next.userId); /* TODO: Verify if correct userid */ |
| } 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. |
| boolean anim = true; |
| if (prev != null) { |
| if (prev.finishing) { |
| if (DEBUG_TRANSITION) Slog.v(TAG, |
| "Prepare close transition: prev=" + prev); |
| if (mNoAnimActivities.contains(prev)) { |
| anim = false; |
| mWindowManager.prepareAppTransition(AppTransition.TRANSIT_NONE, false); |
| } else { |
| mWindowManager.prepareAppTransition(prev.task == next.task |
| ? AppTransition.TRANSIT_ACTIVITY_CLOSE |
| : AppTransition.TRANSIT_TASK_CLOSE, false); |
| } |
| mWindowManager.setAppWillBeHidden(prev.appToken); |
| mWindowManager.setAppVisibility(prev.appToken, false); |
| } else { |
| if (DEBUG_TRANSITION) Slog.v(TAG, "Prepare open transition: prev=" + prev); |
| if (mNoAnimActivities.contains(next)) { |
| anim = false; |
| mWindowManager.prepareAppTransition(AppTransition.TRANSIT_NONE, false); |
| } else { |
| mWindowManager.prepareAppTransition(prev.task == next.task |
| ? AppTransition.TRANSIT_ACTIVITY_OPEN |
| : AppTransition.TRANSIT_TASK_OPEN, false); |
| } |
| } |
| if (false) { |
| mWindowManager.setAppWillBeHidden(prev.appToken); |
| mWindowManager.setAppVisibility(prev.appToken, false); |
| } |
| } else { |
| if (DEBUG_TRANSITION) Slog.v(TAG, "Prepare open transition: no previous"); |
| if (mNoAnimActivities.contains(next)) { |
| anim = false; |
| mWindowManager.prepareAppTransition(AppTransition.TRANSIT_NONE, false); |
| } else { |
| mWindowManager.prepareAppTransition(AppTransition.TRANSIT_ACTIVITY_OPEN, false); |
| } |
| } |
| |
| Bundle resumeAnimOptions = null; |
| if (anim) { |
| ActivityOptions opts = next.getOptionsForTargetActivityLocked(); |
| if (opts != null) { |
| resumeAnimOptions = opts.toBundle(); |
| } |
| next.applyOptionsLocked(); |
| } else { |
| next.clearOptionsLocked(); |
| } |
| |
| ActivityStack lastStack = mStackSupervisor.getLastStack(); |
| if (next.app != null && next.app.thread != null) { |
| if (DEBUG_SWITCH) Slog.v(TAG, "Resume running: " + next); |
| |
| // This activity is now becoming visible. |
| mWindowManager.setAppVisibility(next.appToken, true); |
| |
| // schedule launch ticks to collect information about slow apps. |
| next.startLaunchTickingLocked(); |
| |
| ActivityRecord lastResumedActivity = |
| lastStack == null ? null :lastStack.mResumedActivity; |
| ActivityState lastState = next.state; |
| |
| mService.updateCpuStats(); |
| |
| if (DEBUG_STATES) Slog.v(TAG, "Moving to RESUMED: " + next + " (in existing)"); |
| next.state = ActivityState.RESUMED; |
| mResumedActivity = next; |
| next.task.touchActiveTime(); |
| mService.addRecentTaskLocked(next.task); |
| mService.updateLruProcessLocked(next.app, true, null); |
| updateLRUListLocked(next); |
| mService.updateOomAdjLocked(); |
| |
| // Have the window manager re-evaluate the orientation of |
| // the screen based on the new activity order. |
| boolean notUpdated = true; |
| if (mStackSupervisor.isFrontStack(this)) { |
| Configuration config = mWindowManager.updateOrientationFromAppTokens( |
| mService.mConfiguration, |
| next.mayFreezeScreenLocked(next.app) ? next.appToken : null); |
| if (config != null) { |
| next.frozenBeforeDestroy = true; |
| } |
| notUpdated = !mService.updateConfigurationLocked(config, next, false, false); |
| } |
| |
| if (notUpdated) { |
| // 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 || DEBUG_STATES) Slog.i(TAG, |
| "Activity config changed during resume: " + next |
| + ", new next: " + nextNext); |
| if (nextNext != next) { |
| // Do over! |
| mStackSupervisor.scheduleResumeTopActivities(); |
| } |
| if (mStackSupervisor.reportResumedActivityLocked(next)) { |
| mNoAnimActivities.clear(); |
| if (DEBUG_STACK) mStackSupervisor.validateTopActivitiesLocked(); |
| return true; |
| } |
| if (DEBUG_STACK) mStackSupervisor.validateTopActivitiesLocked(); |
| return false; |
| } |
| |
| try { |
| // Deliver all pending results. |
| ArrayList<ResultInfo> 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.appToken, a); |
| } |
| } |
| |
| if (next.newIntents != null) { |
| next.app.thread.scheduleNewIntent(next.newIntents, next.appToken); |
| } |
| |
| EventLog.writeEvent(EventLogTags.AM_RESUME_ACTIVITY, |
| next.userId, System.identityHashCode(next), |
| next.task.taskId, next.shortComponentName); |
| |
| next.sleeping = false; |
| mService.showAskCompatModeDialogLocked(next); |
| next.app.pendingUiClean = true; |
| next.app.forceProcessStateUpTo(ActivityManager.PROCESS_STATE_TOP); |
| next.clearOptionsLocked(); |
| next.app.thread.scheduleResumeActivity(next.appToken, next.app.repProcState, |
| mService.isNextTransitionForward(), resumeAnimOptions); |
| |
| mStackSupervisor.checkReadyForSleepLocked(); |
| |
| if (DEBUG_STATES) Slog.d(TAG, "resumeTopActivityLocked: Resumed " + next); |
| } catch (Exception e) { |
| // Whoops, need to restart this activity! |
| if (DEBUG_STATES) Slog.v(TAG, "Resume failed; resetting state to " |
| + lastState + ": " + next); |
| next.state = lastState; |
| if (lastStack != null) { |
| lastStack.mResumedActivity = lastResumedActivity; |
| } |
| Slog.i(TAG, "Restarting because process died: " + next); |
| if (!next.hasBeenLaunched) { |
| next.hasBeenLaunched = true; |
| } else if (SHOW_APP_STARTING_PREVIEW && lastStack != null && |
| mStackSupervisor.isFrontStack(lastStack)) { |
| mWindowManager.setAppStartingWindow( |
| next.appToken, next.packageName, next.theme, |
| mService.compatibilityInfoForPackageLocked(next.info.applicationInfo), |
| next.nonLocalizedLabel, next.labelRes, next.icon, next.logo, |
| next.windowFlags, null, true); |
| } |
| mStackSupervisor.startSpecificActivityLocked(next, true, false); |
| if (DEBUG_STACK) mStackSupervisor.validateTopActivitiesLocked(); |
| 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.appToken, Activity.RESULT_CANCELED, null, |
| "resume-exception", true); |
| if (DEBUG_STACK) mStackSupervisor.validateTopActivitiesLocked(); |
| return true; |
| } |
| next.stopped = false; |
| |
| } else { |
| // Whoops, need to restart this activity! |
| if (!next.hasBeenLaunched) { |
| next.hasBeenLaunched = true; |
| } else { |
| if (SHOW_APP_STARTING_PREVIEW) { |
| mWindowManager.setAppStartingWindow( |
| next.appToken, next.packageName, next.theme, |
| mService.compatibilityInfoForPackageLocked( |
| next.info.applicationInfo), |
| next.nonLocalizedLabel, |
| next.labelRes, next.icon, next.logo, next.windowFlags, |
| null, true); |
| } |
| if (DEBUG_SWITCH) Slog.v(TAG, "Restarting: " + next); |
| } |
| if (DEBUG_STATES) Slog.d(TAG, "resumeTopActivityLocked: Restarting " + next); |
| mStackSupervisor.startSpecificActivityLocked(next, true, true); |
| } |
| |
| if (DEBUG_STACK) mStackSupervisor.validateTopActivitiesLocked(); |
| return true; |
| } |
| |
| private void insertTaskAtTop(TaskRecord task) { |
| // If this is being moved to the top by another activity or being launched from the home |
| // activity, set mOnTopOfHome accordingly. |
| if (isOnHomeDisplay()) { |
| ActivityStack lastStack = mStackSupervisor.getLastStack(); |
| final boolean fromHome = lastStack.isHomeStack(); |
| if (!isHomeStack() && (fromHome || topTask() != task)) { |
| task.mOnTopOfHome = fromHome; |
| } |
| } else { |
| task.mOnTopOfHome = false; |
| } |
| |
| mTaskHistory.remove(task); |
| // Now put task at top. |
| int stackNdx = mTaskHistory.size(); |
| if (!isCurrentProfileLocked(task.userId)) { |
| // Put non-current user tasks below current user tasks. |
| while (--stackNdx >= 0) { |
| if (!isCurrentProfileLocked(mTaskHistory.get(stackNdx).userId)) { |
| break; |
| } |
| } |
| ++stackNdx; |
| } |
| mTaskHistory.add(stackNdx, task); |
| } |
| |
| final void startActivityLocked(ActivityRecord r, boolean newTask, |
| boolean doResume, boolean keepCurTransition, Bundle options) { |
| TaskRecord rTask = r.task; |
| final int taskId = rTask.taskId; |
| if (taskForIdLocked(taskId) == null || newTask) { |
| // Last activity in task had been removed or ActivityManagerService is reusing task. |
| // Insert or replace. |
| // Might not even be in. |
| insertTaskAtTop(rTask); |
| mWindowManager.moveTaskToTop(taskId); |
| } |
| TaskRecord task = null; |
| if (!newTask) { |
| // If starting in an existing task, find where that is... |
| boolean startIt = true; |
| for (int taskNdx = mTaskHistory.size() - 1; taskNdx >= 0; --taskNdx) { |
| task = mTaskHistory.get(taskNdx); |
| if (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. |
| if (!startIt) { |
| if (DEBUG_ADD_REMOVE) Slog.i(TAG, "Adding activity " + r + " to task " |
| + task, new RuntimeException("here").fillInStackTrace()); |
| task.addActivityToTop(r); |
| r.putInHistory(); |
| mWindowManager.addAppToken(task.mActivities.indexOf(r), r.appToken, |
| r.task.taskId, mStackId, r.info.screenOrientation, r.fullscreen, |
| (r.info.flags & ActivityInfo.FLAG_SHOW_ON_LOCK_SCREEN) != 0, |
| r.userId, r.info.configChanges); |
| if (VALIDATE_TOKENS) { |
| validateAppTokensLocked(); |
| } |
| ActivityOptions.abort(options); |
| return; |
| } |
| break; |
| } else if (task.numFullscreen > 0) { |
| startIt = false; |
| } |
| } |
| } |
| |
| // Place a new activity at top of stack, so it is next to interact |
| // with the user. |
| |
| // If we are not placing the new activity frontmost, we do not want |
| // to deliver the onUserLeaving callback to the actual frontmost |
| // activity |
| if (task == r.task && mTaskHistory.indexOf(task) != (mTaskHistory.size() - 1)) { |
| mStackSupervisor.mUserLeaving = false; |
| if (DEBUG_USER_LEAVING) Slog.v(TAG, |
| "startActivity() behind front, mUserLeaving=false"); |
| } |
| |
| task = r.task; |
| |
| // Slot the activity into the history stack and proceed |
| if (DEBUG_ADD_REMOVE) Slog.i(TAG, "Adding activity " + r + " to stack to task " + task, |
| new RuntimeException("here").fillInStackTrace()); |
| task.addActivityToTop(r); |
| task.setFrontOfTask(); |
| |
| r.putInHistory(); |
| if (!isHomeStack() || numActivities() > 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) { |
| mWindowManager.prepareAppTransition(AppTransition.TRANSIT_NONE, keepCurTransition); |
| mNoAnimActivities.add(r); |
| } else { |
| mWindowManager.prepareAppTransition(newTask |
| ? AppTransition.TRANSIT_TASK_OPEN |
| : AppTransition.TRANSIT_ACTIVITY_OPEN, keepCurTransition); |
| mNoAnimActivities.remove(r); |
| } |
| r.updateOptionsLocked(options); |
| mWindowManager.addAppToken(task.mActivities.indexOf(r), |
| r.appToken, r.task.taskId, mStackId, r.info.screenOrientation, r.fullscreen, |
| (r.info.flags & ActivityInfo.FLAG_SHOW_ON_LOCK_SCREEN) != 0, r.userId, |
| r.info.configChanges); |
| 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; |
| } |
| } |
| mWindowManager.setAppStartingWindow( |
| r.appToken, r.packageName, r.theme, |
| mService.compatibilityInfoForPackageLocked( |
| r.info.applicationInfo), r.nonLocalizedLabel, |
| r.labelRes, r.icon, r.logo, r.windowFlags, |
| prev != null ? prev.appToken : null, showStartingIcon); |
| r.mStartingWindowShown = true; |
| } |
| } else { |
| // If this is the first activity, don't do any fancy animations, |
| // because there is nothing for it to animate on top of. |
| mWindowManager.addAppToken(task.mActivities.indexOf(r), r.appToken, |
| r.task.taskId, mStackId, r.info.screenOrientation, r.fullscreen, |
| (r.info.flags & ActivityInfo.FLAG_SHOW_ON_LOCK_SCREEN) != 0, r.userId, |
| r.info.configChanges); |
| ActivityOptions.abort(options); |
| } |
| if (VALIDATE_TOKENS) { |
| validateAppTokensLocked(); |
| } |
| |
| if (doResume) { |
| mStackSupervisor.resumeTopActivitiesLocked(); |
| } |
| } |
| |
| final void validateAppTokensLocked() { |
| mValidateAppTokens.clear(); |
| mValidateAppTokens.ensureCapacity(numActivities()); |
| final int numTasks = mTaskHistory.size(); |
| for (int taskNdx = 0; taskNdx < numTasks; ++taskNdx) { |
| TaskRecord task = mTaskHistory.get(taskNdx); |
| final ArrayList<ActivityRecord> activities = task.mActivities; |
| if (activities.isEmpty()) { |
| continue; |
| } |
| TaskGroup group = new TaskGroup(); |
| group.taskId = task.taskId; |
| mValidateAppTokens.add(group); |
| final int numActivities = activities.size(); |
| for (int activityNdx = 0; activityNdx < numActivities; ++activityNdx) { |
| final ActivityRecord r = activities.get(activityNdx); |
| group.tokens.add(r.appToken); |
| } |
| } |
| mWindowManager.validateAppTokens(mStackId, mValidateAppTokens); |
| } |
| |
| /** |
| * Perform a reset of the given task, if needed as part of launching it. |
| * Returns the new HistoryRecord at the top of the task. |
| */ |
| /** |
| * Helper method for #resetTaskIfNeededLocked. |
| * 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. |
| * @param task The task containing the Activity (taskTop) that might be reset. |
| * @param forceReset |
| * @return An ActivityOptions that needs to be processed. |
| */ |
| final ActivityOptions resetTargetTaskIfNeededLocked(TaskRecord task, boolean forceReset) { |
| ActivityOptions topOptions = null; |
| |
| int replyChainEnd = -1; |
| boolean canMoveOptions = true; |
| |
| // 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!). |
| final ArrayList<ActivityRecord> activities = task.mActivities; |
| final int numActivities = activities.size(); |
| for (int i = numActivities - 1; i > 0; --i ) { |
| ActivityRecord target = activities.get(i); |
| |
| 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; |
| 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 = i; |
| } |
| } 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. |
| final ThumbnailHolder newThumbHolder; |
| final TaskRecord targetTask; |
| final ActivityRecord bottom = |
| !mTaskHistory.isEmpty() && !mTaskHistory.get(0).mActivities.isEmpty() ? |
| mTaskHistory.get(0).mActivities.get(0) : null; |
| if (bottom != null && target.taskAffinity != null |
| && target.taskAffinity.equals(bottom.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. |
| targetTask = bottom.task; |
| newThumbHolder = bottom.thumbHolder == null ? targetTask : bottom.thumbHolder; |
| if (DEBUG_TASKS) Slog.v(TAG, "Start pushing activity " + target |
| + " out to bottom task " + bottom.task); |
| } else { |
| targetTask = createTaskRecord(mStackSupervisor.getNextTaskId(), target.info, |
| null, false); |
| newThumbHolder = targetTask; |
| targetTask.affinityIntent = target.intent; |
| if (DEBUG_TASKS) Slog.v(TAG, "Start pushing activity " + target |
| + " out to new task " + target.task); |
| } |
| |
| target.thumbHolder = newThumbHolder; |
| |
| final int targetTaskId = targetTask.taskId; |
| mWindowManager.setAppGroupId(target.appToken, targetTaskId); |
| |
| boolean noOptions = canMoveOptions; |
| final int start = replyChainEnd < 0 ? i : replyChainEnd; |
| for (int srcPos = start; srcPos >= i; --srcPos) { |
| final ActivityRecord p = activities.get(srcPos); |
| if (p.finishing) { |
| continue; |
| } |
| |
| ThumbnailHolder curThumbHolder = p.thumbHolder; |
| canMoveOptions = false; |
| if (noOptions && topOptions == null) { |
| topOptions = p.takeOptionsLocked(); |
| if (topOptions != null) { |
| noOptions = false; |
| } |
| } |
| if (DEBUG_ADD_REMOVE) Slog.i(TAG, "Removing activity " + p + " from task=" |
| + task + " adding to task=" + targetTask |
| + " Callers=" + Debug.getCallers(4)); |
| if (DEBUG_TASKS) Slog.v(TAG, "Pushing next activity " + p |
| + " out to target's task " + target.task); |
| p.setTask(targetTask, curThumbHolder, false); |
| targetTask.addActivityAtBottom(p); |
| |
| mWindowManager.setAppGroupId(p.appToken, targetTaskId); |
| } |
| |
| mWindowManager.moveTaskToBottom(targetTaskId); |
| if (VALIDATE_TOKENS) { |
| validateAppTokensLocked(); |
| } |
| |
| 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. |
| int end; |
| 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. |
| end = numActivities - 1; |
| } else if (replyChainEnd < 0) { |
| end = i; |
| } else { |
| end = replyChainEnd; |
| } |
| boolean noOptions = canMoveOptions; |
| for (int srcPos = i; srcPos <= end; srcPos++) { |
| ActivityRecord p = activities.get(srcPos); |
| if (p.finishing) { |
| continue; |
| } |
| canMoveOptions = false; |
| if (noOptions && topOptions == null) { |
| topOptions = p.takeOptionsLocked(); |
| if (topOptions != null) { |
| noOptions = false; |
| } |
| } |
| if (DEBUG_TASKS) Slog.w(TAG, |
| "resetTaskIntendedTask: calling finishActivity on " + p); |
| if (finishActivityLocked(p, Activity.RESULT_CANCELED, null, "reset", false)) { |
| end--; |
| srcPos--; |
| } |
| } |
| 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; |
| } |
| } |
| |
| return topOptions; |
| } |
| |
| /** |
| * Helper method for #resetTaskIfNeededLocked. Processes all of the activities in a given |
| * TaskRecord looking for an affinity with the task of resetTaskIfNeededLocked.taskTop. |
| * @param affinityTask The task we are looking for an affinity to. |
| * @param task Task that resetTaskIfNeededLocked.taskTop belongs to. |
| * @param topTaskIsHigher True if #task has already been processed by resetTaskIfNeededLocked. |
| * @param forceReset Flag passed in to resetTaskIfNeededLocked. |
| */ |
| private int resetAffinityTaskIfNeededLocked(TaskRecord affinityTask, TaskRecord task, |
| boolean topTaskIsHigher, boolean forceReset, int taskInsertionPoint) { |
| int replyChainEnd = -1; |
| final int taskId = task.taskId; |
| final String taskAffinity = task.affinity; |
| |
| final ArrayList<ActivityRecord> activities = affinityTask.mActivities; |
| final int numActivities = activities.size(); |
| // Do not operate on the root Activity. |
| for (int i = numActivities - 1; i > 0; --i) { |
| ActivityRecord target = activities.get(i); |
| |
| final int flags = target.info.flags; |
| boolean finishOnTaskLaunch = (flags & ActivityInfo.FLAG_FINISH_ON_TASK_LAUNCH) != 0; |
| boolean allowTaskReparenting = (flags & ActivityInfo.FLAG_ALLOW_TASK_REPARENTING) != 0; |
| |
| 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 = i; |
| } |
| } else if (topTaskIsHigher |
| && allowTaskReparenting |
| && taskAffinity != null |
| && taskAffinity.equals(target.taskAffinity)) { |
| // This activity has an affinity for our task. 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) { |
| final int start = replyChainEnd >= 0 ? replyChainEnd : i; |
| if (DEBUG_TASKS) Slog.v(TAG, "Finishing task at index " + start + " to " + i); |
| for (int srcPos = start; srcPos >= i; --srcPos) { |
| final ActivityRecord p = activities.get(srcPos); |
| if (p.finishing) { |
| continue; |
| } |
| finishActivityLocked(p, Activity.RESULT_CANCELED, null, "reset", false); |
| } |
| } else { |
| if (taskInsertionPoint < 0) { |
| taskInsertionPoint = task.mActivities.size(); |
| |
| } |
| |
| final int start = replyChainEnd >= 0 ? replyChainEnd : i; |
| if (DEBUG_TASKS) Slog.v(TAG, "Reparenting from task=" + affinityTask + ":" |
| + start + "-" + i + " to task=" + task + ":" + taskInsertionPoint); |
| for (int srcPos = start; srcPos >= i; --srcPos) { |
| final ActivityRecord p = activities.get(srcPos); |
| p.setTask(task, null, false); |
| task.addActivityAtIndex(taskInsertionPoint, p); |
| |
| if (DEBUG_ADD_REMOVE) Slog.i(TAG, "Removing and adding activity " + p |
| + " to stack at " + task, |
| new RuntimeException("here").fillInStackTrace()); |
| if (DEBUG_TASKS) Slog.v(TAG, "Pulling activity " + p + " from " + srcPos |
| + " in to resetting task " + task); |
| mWindowManager.setAppGroupId(p.appToken, taskId); |
| } |
| mWindowManager.moveTaskToTop(taskId); |
| if (VALIDATE_TOKENS) { |
| validateAppTokensLocked(); |
| } |
| |
| // 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) { |
| ArrayList<ActivityRecord> taskActivities = task.mActivities; |
| int targetNdx = taskActivities.indexOf(target); |
| if (targetNdx > 0) { |
| ActivityRecord p = taskActivities.get(targetNdx - 1); |
| if (p.intent.getComponent().equals(target.intent.getComponent())) { |
| finishActivityLocked(p, Activity.RESULT_CANCELED, null, "replace", |
| false); |
| } |
| } |
| } |
| } |
| |
| replyChainEnd = -1; |
| } |
| } |
| return taskInsertionPoint; |
| } |
| |
| 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; |
| |
| /** False until we evaluate the TaskRecord associated with taskTop. Switches to true |
| * for remaining tasks. Used for later tasks to reparent to task. */ |
| boolean taskFound = false; |
| |
| /** If ActivityOptions are moved out and need to be aborted or moved to taskTop. */ |
| ActivityOptions topOptions = null; |
| |
| // Preserve the location for reparenting in the new task. |
| int reparentInsertionPoint = -1; |
| |
| for (int i = mTaskHistory.size() - 1; i >= 0; --i) { |
| final TaskRecord targetTask = mTaskHistory.get(i); |
| |
| if (targetTask == task) { |
| topOptions = resetTargetTaskIfNeededLocked(task, forceReset); |
| taskFound = true; |
| } else { |
| reparentInsertionPoint = resetAffinityTaskIfNeededLocked(targetTask, task, |
| taskFound, forceReset, reparentInsertionPoint); |
| } |
| } |
| |
| int taskNdx = mTaskHistory.indexOf(task); |
| do { |
| taskTop = mTaskHistory.get(taskNdx--).getTopActivity(); |
| } while (taskTop == null && taskNdx >= 0); |
| |
| if (topOptions != null) { |
| // If we got some ActivityOptions from an activity on top that |
| // was removed from the task, propagate them to the new real top. |
| if (taskTop != null) { |
| taskTop.updateOptionsLocked(topOptions); |
| } else { |
| topOptions.abort(); |
| } |
| } |
| |
| return taskTop; |
| } |
| |
| 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.appToken, list); |
| return; |
| } catch (Exception e) { |
| Slog.w(TAG, "Exception thrown sending result to " + r, e); |
| } |
| } |
| |
| r.addResultLocked(null, resultWho, requestCode, resultCode, data); |
| } |
| |
| private void adjustFocusedActivityLocked(ActivityRecord r) { |
| if (mStackSupervisor.isFrontStack(this) && mService.mFocusedActivity == r) { |
| ActivityRecord next = topRunningActivityLocked(null); |
| if (next != r) { |
| final TaskRecord task = r.task; |
| if (r.frontOfTask && task == topTask() && task.mOnTopOfHome) { |
| mStackSupervisor.moveHomeToTop(); |
| } |
| } |
| mService.setFocusedActivityLocked(mStackSupervisor.topRunningActivityLocked()); |
| } |
| } |
| |
| 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) { |
| if (!mService.mSleeping) { |
| if (DEBUG_STATES) { |
| Slog.d(TAG, "no-history finish of " + r); |
| } |
| requestFinishActivityLocked(r.appToken, Activity.RESULT_CANCELED, null, |
| "no-history", false); |
| } else { |
| if (DEBUG_STATES) Slog.d(TAG, "Not finishing noHistory " + r |
| + " on stop because we're just sleeping"); |
| } |
| } |
| } |
| |
| if (r.app != null && r.app.thread != null) { |
| adjustFocusedActivityLocked(r); |
| r.resumeKeyDispatchingLocked(); |
| try { |
| r.stopped = false; |
| if (DEBUG_STATES) Slog.v(TAG, "Moving to STOPPING: " + r |
| + " (stop requested)"); |
| r.state = ActivityState.STOPPING; |
| if (DEBUG_VISBILITY) Slog.v( |
| TAG, "Stopping visible=" + r.visible + " for " + r); |
| if (!r.visible) { |
| mWindowManager.setAppVisibility(r.appToken, false); |
| } |
| r.app.thread.scheduleStopActivity(r.appToken, r.visible, r.configChangeFlags); |
| if (mService.isSleepingOrShuttingDown()) { |
| r.setSleeping(true); |
| } |
| Message msg = mHandler.obtainMessage(STOP_TIMEOUT_MSG, r); |
| mHandler.sendMessageDelayed(msg, STOP_TIMEOUT); |
| } 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; |
| if (DEBUG_STATES) Slog.v(TAG, "Stop failed; moving to STOPPED: " + r); |
| r.state = ActivityState.STOPPED; |
| if (r.configDestroy) { |
| destroyActivityLocked(r, true, false, "stop-except"); |
| } |
| } |
| } |
| } |
| |
| /** |
| * @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, boolean oomAdj) { |
| ActivityRecord r = isInStackLocked(token); |
| if (DEBUG_RESULTS || DEBUG_STATES) Slog.v( |
| TAG, "Finishing activity token=" + token + " r=" |
| + ", result=" + resultCode + ", data=" + resultData |
| + ", reason=" + reason); |
| if (r == null) { |
| return false; |
| } |
| |
| finishActivityLocked(r, resultCode, resultData, reason, oomAdj); |
| return true; |
| } |
| |
| final void finishSubActivityLocked(ActivityRecord self, String resultWho, int requestCode) { |
| for (int taskNdx = mTaskHistory.size() - 1; taskNdx >= 0; --taskNdx) { |
| ArrayList<ActivityRecord> activities = mTaskHistory.get(taskNdx).mActivities; |
| for (int activityNdx = activities.size() - 1; activityNdx >= 0; --activityNdx) { |
| ActivityRecord r = activities.get(activityNdx); |
| if (r.resultTo == self && r.requestCode == requestCode) { |
| if ((r.resultWho == null && resultWho == null) || |
| (r.resultWho != null && r.resultWho.equals(resultWho))) { |
| finishActivityLocked(r, Activity.RESULT_CANCELED, null, "request-sub", |
| false); |
| } |
| } |
| } |
| } |
| mService.updateOomAdjLocked(); |
| } |
| |
| final void finishTopRunningActivityLocked(ProcessRecord app) { |
| ActivityRecord r = topRunningActivityLocked(null); |
| if (r != null && r.app == app) { |
| // If the top running activity is from this crashing |
| // process, then terminate it to avoid getting in a loop. |
| Slog.w(TAG, " Force finishing activity " |
| + r.intent.getComponent().flattenToShortString()); |
| int taskNdx = mTaskHistory.indexOf(r.task); |
| int activityNdx = r.task.mActivities.indexOf(r); |
| finishActivityLocked(r, Activity.RESULT_CANCELED, null, "crashed", false); |
| // Also terminate any activities below it that aren't yet |
| // stopped, to avoid a situation where one will get |
| // re-start our crashing activity once it gets resumed again. |
| --activityNdx; |
| if (activityNdx < 0) { |
| do { |
| --taskNdx; |
| if (taskNdx < 0) { |
| break; |
| } |
| activityNdx = mTaskHistory.get(taskNdx).mActivities.size() - 1; |
| } while (activityNdx < 0); |
| } |
| if (activityNdx >= 0) { |
| r = mTaskHistory.get(taskNdx).mActivities.get(activityNdx); |
| if (r.state == ActivityState.RESUMED |
| || r.state == ActivityState.PAUSING |
| || r.state == ActivityState.PAUSED) { |
| if (!r.isHomeActivity() || mService.mHomeProcess != r.app) { |
| Slog.w(TAG, " Force finishing activity " |
| + r.intent.getComponent().flattenToShortString()); |
| finishActivityLocked(r, Activity.RESULT_CANCELED, null, "crashed", false); |
| } |
| } |
| } |
| } |
| } |
| |
| final boolean finishActivityAffinityLocked(ActivityRecord r) { |
| ArrayList<ActivityRecord> activities = r.task.mActivities; |
| for (int index = activities.indexOf(r); index >= 0; --index) { |
| ActivityRecord cur = activities.get(index); |
| if (!Objects.equals(cur.taskAffinity, r.taskAffinity)) { |
| break; |
| } |
| finishActivityLocked(cur, Activity.RESULT_CANCELED, null, "request-affinity", true); |
| } |
| return true; |
| } |
| |
| final void finishActivityResultsLocked(ActivityRecord r, int resultCode, Intent resultData) { |
| // 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; |
| } |
| |
| /** |
| * @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 resultCode, Intent resultData, |
| String reason, boolean oomAdj) { |
| if (r.finishing) { |
| Slog.w(TAG, "Duplicate finish request for " + r); |
| return false; |
| } |
| |
| r.makeFinishing(); |
| final TaskRecord task = r.task; |
| EventLog.writeEvent(EventLogTags.AM_FINISH_ACTIVITY, |
| r.userId, System.identityHashCode(r), |
| task.taskId, r.shortComponentName, reason); |
| final ArrayList<ActivityRecord> activities = task.mActivities; |
| final int index = activities.indexOf(r); |
| if (index < (activities.size() - 1)) { |
| task.setFrontOfTask(); |
| 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. |
| ActivityRecord next = activities.get(index+1); |
| next.intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET); |
| } |
| } |
| |
| r.pauseKeyDispatchingLocked(); |
| |
| adjustFocusedActivityLocked(r); |
| |
| finishActivityResultsLocked(r, resultCode, resultData); |
| |
| if (!mService.mPendingThumbnails.isEmpty()) { |
| // 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. |
| mStackSupervisor.mCancelledThumbnails.add(r); |
| } |
| |
| if (mResumedActivity == r) { |
| boolean endTask = index <= 0; |
| if (DEBUG_VISBILITY || DEBUG_TRANSITION) Slog.v(TAG, |
| "Prepare close transition: finishing " + r); |
| mWindowManager.prepareAppTransition(endTask |
| ? AppTransition.TRANSIT_TASK_CLOSE |
| : AppTransition.TRANSIT_ACTIVITY_CLOSE, false); |
| |
| // Tell window manager to prepare for this one to be removed. |
| mWindowManager.setAppVisibility(r.appToken, 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); |
| } |
| |
| if (endTask) { |
| mStackSupervisor.endLockTaskModeIfTaskEnding(task); |
| } |
| } 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, FINISH_AFTER_PAUSE, oomAdj) == null; |
| } else { |
| if (DEBUG_PAUSE) Slog.v(TAG, "Finish waiting for pause of: " + r); |
| } |
| |
| return false; |
| } |
| |
| static final int FINISH_IMMEDIATELY = 0; |
| static final int FINISH_AFTER_PAUSE = 1; |
| static final int FINISH_AFTER_VISIBLE = 2; |
| |
| final ActivityRecord finishCurrentActivityLocked(ActivityRecord r, int mode, boolean oomAdj) { |
| // 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 (!mStackSupervisor.mStoppingActivities.contains(r)) { |
| mStackSupervisor.mStoppingActivities.add(r); |
| if (mStackSupervisor.mStoppingActivities.size() > 3 |
| || r.frontOfTask && mTaskHistory.size() <= 1) { |
| // If we already have a few activities waiting to stop, |
| // then give up on things going idle and start clearing |
| // them out. Or if r is the last of activity of the last task the stack |
| // will be empty and must be cleared immediately. |
| mStackSupervisor.scheduleIdleLocked(); |
| } else { |
| mStackSupervisor.checkReadyForSleepLocked(); |
| } |
| } |
| if (DEBUG_STATES) Slog.v(TAG, "Moving to STOPPING: " + r |
| + " (finish requested)"); |
| r.state = ActivityState.STOPPING; |
| if (oomAdj) { |
| mService.updateOomAdjLocked(); |
| } |
| return r; |
| } |
| |
| // make sure the record is cleaned out of other places. |
| mStackSupervisor.mStoppingActivities.remove(r); |
| mStackSupervisor.mGoingToSleepActivities.remove(r); |
| mStackSupervisor.mWaitingVisibleActivities.remove(r); |
| if (mResumedActivity == r) { |
| mResumedActivity = null; |
| } |
| final ActivityState prevState = r.state; |
| if (DEBUG_STATES) Slog.v(TAG, "Moving to FINISHING: " + r); |
| 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. |
| boolean activityRemoved = destroyActivityLocked(r, true, |
| oomAdj, "finish-imm"); |
| if (activityRemoved) { |
| mStackSupervisor.resumeTopActivitiesLocked(); |
| } |
| return activityRemoved ? null : r; |
| } |
| |
| // 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); |
| mStackSupervisor.mFinishingActivities.add(r); |
| r.resumeKeyDispatchingLocked(); |
| mStackSupervisor.getFocusedStack().resumeTopActivityLocked(null); |
| return r; |
| } |
| |
| final boolean navigateUpToLocked(IBinder token, Intent destIntent, int resultCode, |
| Intent resultData) { |
| final ActivityRecord srec = ActivityRecord.forToken(token); |
| final TaskRecord task = srec.task; |
| final ArrayList<ActivityRecord> activities = task.mActivities; |
| final int start = activities.indexOf(srec); |
| if (!mTaskHistory.contains(task) || (start < 0)) { |
| return false; |
| } |
| int finishTo = start - 1; |
| ActivityRecord parent = finishTo < 0 ? null : activities.get(finishTo); |
| boolean foundParentInTask = false; |
| final ComponentName dest = destIntent.getComponent(); |
| if (start > 0 && dest != null) { |
| for (int i = finishTo; i >= 0; i--) { |
| ActivityRecord r = activities.get(i); |
| if (r.info.packageName.equals(dest.getPackageName()) && |
| r.info.name.equals(dest.getClassName())) { |
| finishTo = i; |
| parent = r; |
| foundParentInTask = true; |
| break; |
| } |
| } |
| } |
| |
| IActivityController controller = mService.mController; |
| if (controller != null) { |
| ActivityRecord next = topRunningActivityLocked(srec.appToken, 0); |
| if (next != null) { |
| // ask watcher if this is allowed |
| boolean resumeOK = true; |
| try { |
| resumeOK = controller.activityResuming(next.packageName); |
| } catch (RemoteException e) { |
| mService.mController = null; |
| Watchdog.getInstance().setActivityController(null); |
| } |
| |
| if (!resumeOK) { |
| return false; |
| } |
| } |
| } |
| final long origId = Binder.clearCallingIdentity(); |
| for (int i = start; i > finishTo; i--) { |
| ActivityRecord r = activities.get(i); |
| requestFinishActivityLocked(r.appToken, resultCode, resultData, "navigate-up", true); |
| // Only return the supplied result for the first activity finished |
| resultCode = Activity.RESULT_CANCELED; |
| resultData = null; |
| } |
| |
| if (parent != null && foundParentInTask) { |
| final int parentLaunchMode = parent.info.launchMode; |
| final int destIntentFlags = destIntent.getFlags(); |
| if (parentLaunchMode == ActivityInfo.LAUNCH_SINGLE_INSTANCE || |
| parentLaunchMode == ActivityInfo.LAUNCH_SINGLE_TASK || |
| parentLaunchMode == ActivityInfo.LAUNCH_SINGLE_TOP || |
| (destIntentFlags & Intent.FLAG_ACTIVITY_CLEAR_TOP) != 0) { |
| parent.deliverNewIntentLocked(srec.info.applicationInfo.uid, destIntent); |
| } else { |
| try { |
| ActivityInfo aInfo = AppGlobals.getPackageManager().getActivityInfo( |
| destIntent.getComponent(), 0, srec.userId); |
| int res = mStackSupervisor.startActivityLocked(srec.app.thread, destIntent, |
| null, aInfo, parent.appToken, null, |
| 0, -1, parent.launchedFromUid, parent.launchedFromPackage, |
| 0, null, true, null, null); |
| foundParentInTask = res == ActivityManager.START_SUCCESS; |
| } catch (RemoteException e) { |
| foundParentInTask = false; |
| } |
| requestFinishActivityLocked(parent.appToken, resultCode, |
| resultData, "navigate-up", true); |
| } |
| } |
| Binder.restoreCallingIdentity(origId); |
| return foundParentInTask; |
| } |
| /** |
| * 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, |
| boolean setState) { |
| if (mResumedActivity == r) { |
| mResumedActivity = null; |
| } |
| if (mPausingActivity == r) { |
| mPausingActivity = null; |
| } |
| if (mService.mFocusedActivity == r) { |
| mService.mFocusedActivity = null; |
| } |
| |
| r.configDestroy = false; |
| r.frozenBeforeDestroy = false; |
| |
| if (setState) { |
| if (DEBUG_STATES) Slog.v(TAG, "Moving to DESTROYED: " + r + " (cleaning up)"); |
| r.state = ActivityState.DESTROYED; |
| if (DEBUG_APP) Slog.v(TAG, "Clearing app during cleanUp for activity " + r); |
| r.app = null; |
| } |
| |
| // 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. |
| mStackSupervisor.mFinishingActivities.remove(r); |
| mStackSupervisor.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.isEmpty()) { |
| // 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. |
| mStackSupervisor.mCancelledThumbnails.add(r); |
| } |
| |
| // Get rid of any pending idle timeouts. |
| removeTimeoutsForActivityLocked(r); |
| } |
| |
| private void removeTimeoutsForActivityLocked(ActivityRecord r) { |
| mStackSupervisor.removeTimeoutsForActivityLocked(r); |
| mHandler.removeMessages(PAUSE_TIMEOUT_MSG, r); |
| mHandler.removeMessages(STOP_TIMEOUT_MSG, r); |
| mHandler.removeMessages(DESTROY_TIMEOUT_MSG, r); |
| r.finishLaunchTickingLocked(); |
| } |
| |
| private void removeActivityFromHistoryLocked(ActivityRecord r) { |
| mStackSupervisor.removeChildActivityContainers(r); |
| finishActivityResultsLocked(r, Activity.RESULT_CANCELED, null); |
| r.makeFinishing(); |
| if (DEBUG_ADD_REMOVE) { |
| RuntimeException here = new RuntimeException("here"); |
| here.fillInStackTrace(); |
| Slog.i(TAG, "Removing activity " + r + " from stack"); |
| } |
| r.takeFromHistory(); |
| removeTimeoutsForActivityLocked(r); |
| if (DEBUG_STATES) Slog.v(TAG, "Moving to DESTROYED: " + r + " (removed from history)"); |
| r.state = ActivityState.DESTROYED; |
| if (DEBUG_APP) Slog.v(TAG, "Clearing app during remove for activity " + r); |
| r.app = null; |
| mWindowManager.removeAppToken(r.appToken); |
| if (VALIDATE_TOKENS) { |
| validateAppTokensLocked(); |
| } |
| final TaskRecord task = r.task; |
| if (task != null && task.removeActivity(r)) { |
| if (DEBUG_STACK) Slog.i(TAG, |
| "removeActivityFromHistoryLocked: last activity removed from " + this); |
| if (mStackSupervisor.isFrontStack(this) && task == topTask() && task.mOnTopOfHome) { |
| mStackSupervisor.moveHomeToTop(); |
| } |
| removeTask(task); |
| } |
| 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.mServices.removeConnectionLocked(c, null, r); |
| } |
| r.connections = null; |
| } |
| } |
| |
| final void scheduleDestroyActivities(ProcessRecord owner, boolean oomAdj, String reason) { |
| Message msg = mHandler.obtainMessage(DESTROY_ACTIVITIES_MSG); |
| msg.obj = new ScheduleDestroyArgs(owner, oomAdj, reason); |
| mHandler.sendMessage(msg); |
| } |
| |
| final void destroyActivitiesLocked(ProcessRecord owner, boolean oomAdj, String reason) { |
| boolean lastIsOpaque = false; |
| boolean activityRemoved = false; |
| for (int taskNdx = mTaskHistory.size() - 1; taskNdx >= 0; --taskNdx) { |
| final ArrayList<ActivityRecord> activities = mTaskHistory.get(taskNdx).mActivities; |
| for (int activityNdx = activities.size() - 1; activityNdx >= 0; --activityNdx) { |
| final ActivityRecord r = activities.get(activityNdx); |
| if (r.finishing) { |
| continue; |
| } |
| if (r.fullscreen) { |
| lastIsOpaque = true; |
| } |
| if (owner != null && r.app != owner) { |
| continue; |
| } |
| if (!lastIsOpaque) { |
| continue; |
| } |
| // We can destroy this one if we have its icicle saved and |
| // it is not in the process of pausing/stopping/finishing. |
| if (r.app != null && r != mResumedActivity && r != mPausingActivity |
| && r.haveState && !r.visible && r.stopped |
| && r.state != ActivityState.DESTROYING |
| && r.state != ActivityState.DESTROYED) { |
| if (DEBUG_SWITCH) Slog.v(TAG, "Destroying " + r + " in state " + r.state |
| + " resumed=" + mResumedActivity |
| + " pausing=" + mPausingActivity); |
| if (destroyActivityLocked(r, true, oomAdj, reason)) { |
| activityRemoved = true; |
| } |
| } |
| } |
| } |
| if (activityRemoved) { |
| mStackSupervisor.resumeTopActivitiesLocked(); |
| |
| } |
| } |
| |
| /** |
| * 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, boolean oomAdj, String reason) { |
| if (DEBUG_SWITCH || DEBUG_CLEANUP) Slog.v( |
| TAG, "Removing activity from " + reason + ": token=" + r |
| + ", app=" + (r.app != null ? r.app.processName : "(null)")); |
| EventLog.writeEvent(EventLogTags.AM_DESTROY_ACTIVITY, |
| r.userId, System.identityHashCode(r), |
| r.task.taskId, r.shortComponentName, reason); |
| |
| boolean removedFromHistory = false; |
| |
| cleanUpActivityLocked(r, false, false); |
| |
| final boolean hadApp = r.app != null; |
| |
| if (hadApp) { |
| if (removeFromApp) { |
| r.app.activities.remove(r); |
| 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.isEmpty()) { |
| // No longer have activities, so update LRU list and oom adj. |
| mService.updateLruProcessLocked(r.app, false, null); |
| mService.updateOomAdjLocked(); |
| } |
| } |
| |
| boolean skipDestroy = false; |
| |
| try { |
| if (DEBUG_SWITCH) Slog.i(TAG, "Destroying: " + r); |
| r.app.thread.scheduleDestroyActivity(r.appToken, 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.nowVisible = false; |
| |
| // If the activity is finishing, we need to wait on removing it |
| // from the list to give it a chance to do its cleanup. During |
| // that time it may make calls back with its token so we need to |
| // be able to find it on the list and so we don't want to remove |
| // it from the list yet. Otherwise, we can just immediately put |
| // it in the destroyed state since we are not removing it from the |
| // list. |
| if (r.finishing && !skipDestroy) { |
| if (DEBUG_STATES) Slog.v(TAG, "Moving to DESTROYING: " + r |
| + " (destroy requested)"); |
| r.state = ActivityState.DESTROYING; |
| Message msg = mHandler.obtainMessage(DESTROY_TIMEOUT_MSG, r); |
| mHandler.sendMessageDelayed(msg, DESTROY_TIMEOUT); |
| } else { |
| if (DEBUG_STATES) Slog.v(TAG, "Moving to DESTROYED: " + r + " (destroy skipped)"); |
| r.state = ActivityState.DESTROYED; |
| if (DEBUG_APP) Slog.v(TAG, "Clearing app during destroy for activity " + r); |
| r.app = null; |
| } |
| } else { |
| // remove this record from the history. |
| if (r.finishing) { |
| removeActivityFromHistoryLocked(r); |
| removedFromHistory = true; |
| } else { |
| if (DEBUG_STATES) Slog.v(TAG, "Moving to DESTROYED: " + r + " (no app)"); |
| r.state = ActivityState.DESTROYED; |
| if (DEBUG_APP) Slog.v(TAG, "Clearing app during destroy for activity " + r); |
| r.app = null; |
| } |
| } |
| |
| r.configChangeFlags = 0; |
| |
| if (!mLRUActivities.remove(r) && hadApp) { |
| Slog.w(TAG, "Activity " + r + " being finished, but not in LRU list"); |
| } |
| |
| return removedFromHistory; |
| } |
| |
| final void activityDestroyedLocked(IBinder token) { |
| final long origId = Binder.clearCallingIdentity(); |
| try { |
| ActivityRecord r = ActivityRecord.forToken(token); |
| if (r != null) { |
| mHandler.removeMessages(DESTROY_TIMEOUT_MSG, r); |
| } |
| |
| if (isInStackLocked(token) != null) { |
| if (r.state == ActivityState.DESTROYING) { |
| cleanUpActivityLocked(r, true, false); |
| removeActivityFromHistoryLocked(r); |
| } |
| } |
| mStackSupervisor.resumeTopActivitiesLocked(); |
| } finally { |
| Binder.restoreCallingIdentity(origId); |
| } |
| } |
| |
| private void removeHistoryRecordsForAppLocked(ArrayList<ActivityRecord> list, |
| ProcessRecord app, String listName) { |
| int i = list.size(); |
| if (DEBUG_CLEANUP) Slog.v( |
| TAG, "Removing app " + app + " from list " + listName |
| + " with " + i + " entries"); |
| while (i > 0) { |
| i--; |
| ActivityRecord r = list.get(i); |
| if (DEBUG_CLEANUP) Slog.v(TAG, "Record #" + i + " " + r); |
| if (r.app == app) { |
| if (DEBUG_CLEANUP) Slog.v(TAG, "---> REMOVING this entry!"); |
| list.remove(i); |
| removeTimeoutsForActivityLocked(r); |
| } |
| } |
| } |
| |
| boolean removeHistoryRecordsForAppLocked(ProcessRecord app) { |
| removeHistoryRecordsForAppLocked(mLRUActivities, app, "mLRUActivities"); |
| removeHistoryRecordsForAppLocked(mStackSupervisor.mStoppingActivities, app, |
| "mStoppingActivities"); |
| removeHistoryRecordsForAppLocked(mStackSupervisor.mGoingToSleepActivities, app, |
| "mGoingToSleepActivities"); |
| removeHistoryRecordsForAppLocked(mStackSupervisor.mWaitingVisibleActivities, app, |
| "mWaitingVisibleActivities"); |
| removeHistoryRecordsForAppLocked(mStackSupervisor.mFinishingActivities, app, |
| "mFinishingActivities"); |
| |
| boolean hasVisibleActivities = false; |
| |
| // Clean out the history list. |
| int i = numActivities(); |
| if (DEBUG_CLEANUP) Slog.v( |
| TAG, "Removing app " + app + " from history with " + i + " entries"); |
| for (int taskNdx = mTaskHistory.size() - 1; taskNdx >= 0; --taskNdx) { |
| final ArrayList<ActivityRecord> activities = mTaskHistory.get(taskNdx).mActivities; |
| for (int activityNdx = activities.size() - 1; activityNdx >= 0; --activityNdx) { |
| final ActivityRecord r = activities.get(activityNdx); |
| --i; |
| if (DEBUG_CLEANUP) Slog.v( |
| TAG, "Record #" + i + " " + r + ": app=" + r.app); |
| if (r.app == app) { |
| boolean remove; |
| if ((!r.haveState && !r.stateNotNeeded) || r.finishing) { |
| // Don't currently have state for the activity, or |
| // it is finishing -- always remove it. |
| remove = true; |
| } else if (r.launchCount > 2 && |
| r.lastLaunchTime > (SystemClock.uptimeMillis()-60000)) { |
| // We have launched this activity too many times since it was |
| // able to run, so give up and remove it. |
| remove = true; |
| } else { |
| // The process may be gone, but the activity lives on! |
| remove = false; |
| } |
| if (remove) { |
| if (DEBUG_ADD_REMOVE || DEBUG_CLEANUP) { |
| RuntimeException here = new RuntimeException("here"); |
| here.fillInStackTrace(); |
| Slog.i(TAG, "Removing activity " + r + " from stack at " + i |
| + ": haveState=" + r.haveState |
| + " stateNotNeeded=" + r.stateNotNeeded |
| + " finishing=" + r.finishing |
| + " state=" + r.state, here); |
| } |
| if (!r.finishing) { |
| Slog.w(TAG, "Force removing " + r + ": app died, no saved state"); |
| EventLog.writeEvent(EventLogTags.AM_FINISH_ACTIVITY, |
| r.userId, System.identityHashCode(r), |
| r.task.taskId, r.shortComponentName, |
| "proc died without state saved"); |
| if (r.state == ActivityState.RESUMED) { |
| mService.updateUsageStats(r, false); |
| } |
| } |
| removeActivityFromHistoryLocked(r); |
| |
| } else { |
| // We have the current state for this activity, so |
| // it can be restarted later when needed. |
| if (localLOGV) Slog.v( |
| TAG, "Keeping entry, setting app to null"); |
| if (r.visible) { |
| hasVisibleActivities = true; |
| } |
| if (DEBUG_APP) Slog.v(TAG, "Clearing app during removeHistory for activity " |
| + r); |
| r.app = null; |
| r.nowVisible = false; |
| if (!r.haveState) { |
| if (DEBUG_SAVED_STATE) Slog.i(TAG, |
| "App died, clearing saved state of " + r); |
| r.icicle = null; |
| } |
| } |
| |
| cleanUpActivityLocked(r, true, true); |
| } |
| } |
| } |
| |
| return hasVisibleActivities; |
| } |
| |
| final void updateTransitLocked(int transit, Bundle options) { |
| if (options != null) { |
| ActivityRecord r = topRunningActivityLocked(null); |
| if (r != null && r.state != ActivityState.RESUMED) { |
| r.updateOptionsLocked(options); |
| } else { |
| ActivityOptions.abort(options); |
| } |
| } |
| mWindowManager.prepareAppTransition(transit, false); |
| } |
| |
| void moveHomeTaskToTop() { |
| final int top = mTaskHistory.size() - 1; |
| for (int taskNdx = top; taskNdx >= 0; --taskNdx) { |
| final TaskRecord task = mTaskHistory.get(taskNdx); |
| if (task.isHomeTask()) { |
| if (DEBUG_TASKS || DEBUG_STACK) Slog.d(TAG, "moveHomeTaskToTop: moving " + task); |
| mTaskHistory.remove(taskNdx); |
| mTaskHistory.add(top, task); |
| mWindowManager.moveTaskToTop(task.taskId); |
| return; |
| } |
| } |
| } |
| |
| final void moveTaskToFrontLocked(TaskRecord tr, ActivityRecord reason, Bundle options) { |
| if (DEBUG_SWITCH) Slog.v(TAG, "moveTaskToFront: " + tr); |
| |
| final int numTasks = mTaskHistory.size(); |
| final int index = mTaskHistory.indexOf(tr); |
| if (numTasks == 0 || index < 0) { |
| // nothing to do! |
| if (reason != null && |
| (reason.intent.getFlags()&Intent.FLAG_ACTIVITY_NO_ANIMATION) != 0) { |
| ActivityOptions.abort(options); |
| } else { |
| updateTransitLocked(AppTransition.TRANSIT_TASK_TO_FRONT, options); |
| } |
| return; |
| } |
| |
| moveToFront(); |
| |
| // Shift all activities with this task up to the top |
| // of the stack, keeping them in the same internal order. |
| insertTaskAtTop(tr); |
| |
| if (DEBUG_TRANSITION) Slog.v(TAG, "Prepare to front transition: task=" + tr); |
| if (reason != null && |
| (reason.intent.getFlags()&Intent.FLAG_ACTIVITY_NO_ANIMATION) != 0) { |
| mWindowManager.prepareAppTransition(AppTransition.TRANSIT_NONE, false); |
| ActivityRecord r = topRunningActivityLocked(null); |
| if (r != null) { |
| mNoAnimActivities.add(r); |
| } |
| ActivityOptions.abort(options); |
| } else { |
| updateTransitLocked(AppTransition.TRANSIT_TASK_TO_FRONT, options); |
| } |
| |
| mWindowManager.moveTaskToTop(tr.taskId); |
| |
| mStackSupervisor.resumeTopActivitiesLocked(); |
| EventLog.writeEvent(EventLogTags.AM_TASK_TO_FRONT, tr.userId, tr.taskId); |
| |
| if (VALIDATE_TOKENS) { |
| validateAppTokensLocked(); |
| } |
| } |
| |
| /** |
| * 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 taskId The taskId to collect and move to the bottom. |
| * @return Returns true if the move completed, false if not. |
| */ |
| final boolean moveTaskToBackLocked(int taskId, ActivityRecord reason) { |
| final TaskRecord tr = taskForIdLocked(taskId); |
| if (tr == null) { |
| Slog.i(TAG, "moveTaskToBack: bad taskId=" + taskId); |
| return false; |
| } |
| |
| Slog.i(TAG, "moveTaskToBack: " + tr); |
| |
| mStackSupervisor.endLockTaskModeIfTaskEnding(tr); |
| |
| // 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 (mStackSupervisor.isFrontStack(this) && mService.mController != null) { |
| ActivityRecord next = topRunningActivityLocked(null, taskId); |
| 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; |
| Watchdog.getInstance().setActivityController(null); |
| } |
| if (!moveOK) { |
| return false; |
| } |
| } |
| } |
| |
| if (DEBUG_TRANSITION) Slog.v(TAG, |
| "Prepare to back transition: task=" + taskId); |
| |
| mTaskHistory.remove(tr); |
| mTaskHistory.add(0, tr); |
| |
| // There is an assumption that moving a task to the back moves it behind the home activity. |
| // We make sure here that some activity in the stack will launch home. |
| ActivityRecord lastActivity = null; |
| int numTasks = mTaskHistory.size(); |
| for (int taskNdx = numTasks - 1; taskNdx >= 1; --taskNdx) { |
| final TaskRecord task = mTaskHistory.get(taskNdx); |
| if (task.mOnTopOfHome) { |
| break; |
| } |
| if (taskNdx == 1) { |
| // Set the last task before tr to go to home. |
| task.mOnTopOfHome = true; |
| } |
| } |
| |
| if (reason != null && |
| (reason.intent.getFlags() & Intent.FLAG_ACTIVITY_NO_ANIMATION) != 0) { |
| mWindowManager.prepareAppTransition(AppTransition.TRANSIT_NONE, false); |
| ActivityRecord r = topRunningActivityLocked(null); |
| if (r != null) { |
| mNoAnimActivities.add(r); |
| } |
| } else { |
| mWindowManager.prepareAppTransition(AppTransition.TRANSIT_TASK_TO_BACK, false); |
| } |
| mWindowManager.moveTaskToBottom(taskId); |
| |
| if (VALIDATE_TOKENS) { |
| validateAppTokensLocked(); |
| } |
| |
| final TaskRecord task = mResumedActivity != null ? mResumedActivity.task : null; |
| if (task == tr && tr.mOnTopOfHome || numTasks <= 1 && isOnHomeDisplay()) { |
| tr.mOnTopOfHome = false; |
| return mStackSupervisor.resumeHomeActivity(null); |
| } |
| |
| mStackSupervisor.resumeTopActivitiesLocked(); |
| return true; |
| } |
| |
| static final void logStartActivity(int tag, ActivityRecord r, |
| TaskRecord task) { |
| final Uri data = r.intent.getData(); |
| final String strData = data != null ? data.toSafeString() : null; |
| |
| EventLog.writeEvent(tag, |
| r.userId, System.identityHashCode(r), task.taskId, |
| r.shortComponentName, r.intent.getAction(), |
| r.intent.getType(), strData, 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; |
| |
| // Determine what has changed. May be nothing, if this is a config |
| // that has come back from the app after going idle. In that case |
| // we just want to leave the official config object now in the |
| // activity and do nothing else. |
| final int changes = oldConfig.diff(newConfig); |
| if (changes == 0 && !r.forceNewConfig) { |
| if (DEBUG_SWITCH || DEBUG_CONFIGURATION) Slog.v(TAG, |
| "Configuration no differences in " + r); |
| return true; |
| } |
| |
| // 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 how to handle the changes between the configurations. |
| 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.getRealConfigChanged()) |
| + ", newConfig=" + newConfig); |
| } |
| if ((changes&(~r.info.getRealConfigChanged())) != 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, |
| "Config is destroying non-running " + r); |
| destroyActivityLocked(r, true, false, "config"); |
| } 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, |
| "Config 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, |
| "Config is relaunching resumed " + r); |
| relaunchActivityLocked(r, r.configChangeFlags, true); |
| r.configChangeFlags = 0; |
| } else { |
| if (DEBUG_SWITCH || DEBUG_CONFIGURATION) Slog.v(TAG, |
| "Config is relaunching 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.appToken); |
| } catch (RemoteException e) { |
| // If process died, whatever. |
| } |
| } |
| r.stopFreezingScreenLocked(false); |
| |
| return true; |
| } |
| |
| private 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, r.userId, System.identityHashCode(r), |
| r.task.taskId, r.shortComponentName); |
| |
| r.startFreezingScreenLocked(r.app, 0); |
| |
| mStackSupervisor.removeChildActivityContainers(r); |
| |
| try { |
| if (DEBUG_SWITCH || DEBUG_STATES) Slog.i(TAG, |
| (andResume ? "Relaunching to RESUMED " : "Relaunching to PAUSED ") |
| + r); |
| r.forceNewConfig = false; |
| r.app.thread.scheduleRelaunchActivity(r.appToken, results, newIntents, |
| changes, !andResume, new Configuration(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) { |
| if (DEBUG_SWITCH || DEBUG_STATES) Slog.i(TAG, "Relaunch failed", e); |
| } |
| |
| if (andResume) { |
| r.results = null; |
| r.newIntents = null; |
| r.state = ActivityState.RESUMED; |
| } else { |
| mHandler.removeMessages(PAUSE_TIMEOUT_MSG, r); |
| r.state = ActivityState.PAUSED; |
| } |
| |
| return true; |
| } |
| |
| boolean willActivityBeVisibleLocked(IBinder token) { |
| for (int taskNdx = mTaskHistory.size() - 1; taskNdx >= 0; --taskNdx) { |
| final ArrayList<ActivityRecord> activities = mTaskHistory.get(taskNdx).mActivities; |
| for (int activityNdx = activities.size() - 1; activityNdx >= 0; --activityNdx) { |
| final ActivityRecord r = activities.get(activityNdx); |
| if (r.appToken == token) { |
| return true; |
| } |
| if (r.fullscreen && !r.finishing) { |
| return false; |
| } |
| } |
| } |
| final ActivityRecord r = ActivityRecord.forToken(token); |
| if (r == null) { |
| return false; |
| } |
| if (r.finishing) Slog.e(TAG, "willActivityBeVisibleLocked: Returning false," |
| + " would have returned true for r=" + r); |
| return !r.finishing; |
| } |
| |
| void closeSystemDialogsLocked() { |
| for (int taskNdx = mTaskHistory.size() - 1; taskNdx >= 0; --taskNdx) { |
| final ArrayList<ActivityRecord> activities = mTaskHistory.get(taskNdx).mActivities; |
| for (int activityNdx = activities.size() - 1; activityNdx >= 0; --activityNdx) { |
| final ActivityRecord r = activities.get(activityNdx); |
| if ((r.info.flags&ActivityInfo.FLAG_FINISH_ON_CLOSE_SYSTEM_DIALOGS) != 0) { |
| finishActivityLocked(r, Activity.RESULT_CANCELED, null, "close-sys", true); |
| } |
| } |
| } |
| } |
| |
| boolean forceStopPackageLocked(String name, boolean doit, boolean evenPersistent, int userId) { |
| boolean didSomething = false; |
| TaskRecord lastTask = null; |
| for (int taskNdx = mTaskHistory.size() - 1; taskNdx >= 0; --taskNdx) { |
| final ArrayList<ActivityRecord> activities = mTaskHistory.get(taskNdx).mActivities; |
| int numActivities = activities.size(); |
| for (int activityNdx = 0; activityNdx < numActivities; ++activityNdx) { |
| ActivityRecord r = activities.get(activityNdx); |
| final boolean samePackage = r.packageName.equals(name) |
| || (name == null && r.userId == userId); |
| if ((userId == UserHandle.USER_ALL || r.userId == userId) |
| && (samePackage || r.task == lastTask) |
| && (r.app == null || evenPersistent || !r.app.persistent)) { |
| if (!doit) { |
| if (r.finishing) { |
| // If this activity is just finishing, then it is not |
| // interesting as far as something to stop. |
| continue; |
| } |
| return true; |
| } |
| didSomething = true; |
| Slog.i(TAG, " Force finishing activity " + r); |
| if (samePackage) { |
| if (r.app != null) { |
| r.app.removed = true; |
| } |
| r.app = null; |
| } |
| lastTask = r.task; |
| if (finishActivityLocked(r, Activity.RESULT_CANCELED, null, "force-stop", |
| true)) { |
| // r has been deleted from mActivities, accommodate. |
| --numActivities; |
| --activityNdx; |
| } |
| } |
| } |
| } |
| return didSomething; |
| } |
| |
| ActivityRecord getTasksLocked(IThumbnailReceiver receiver, |
| PendingThumbnailsRecord pending, List<RunningTaskInfo> list) { |
| ActivityRecord topRecord = null; |
| for (int taskNdx = mTaskHistory.size() - 1; taskNdx >= 0; --taskNdx) { |
| final TaskRecord task = mTaskHistory.get(taskNdx); |
| ActivityRecord r = null; |
| ActivityRecord top = null; |
| int numActivities = 0; |
| int numRunning = 0; |
| final ArrayList<ActivityRecord> activities = task.mActivities; |
| if (activities.isEmpty()) { |
| continue; |
| } |
| for (int activityNdx = activities.size() - 1; activityNdx >= 0; --activityNdx) { |
| r = activities.get(activityNdx); |
| |
| // Initialize state for next task if needed. |
| if (top == null || (top.state == ActivityState.INITIALIZING)) { |
| top = r; |
| numActivities = numRunning = 0; |
| } |
| |
| // Add 'r' into the current task. |
| numActivities++; |
| if (r.app != null && r.app.thread != null) { |
| numRunning++; |
| } |
| |
| if (localLOGV) Slog.v( |
| TAG, r.intent.getComponent().flattenToShortString() |
| + ": task=" + r.task); |
| } |
| |
| RunningTaskInfo ci = new RunningTaskInfo(); |
| ci.id = task.taskId; |
| ci.baseActivity = r.intent.getComponent(); |
| ci.topActivity = top.intent.getComponent(); |
| ci.lastActiveTime = task.lastActiveTime; |
| |
| if (top.thumbHolder != null) { |
| ci.description = top.thumbHolder.lastDescription; |
| } |
| ci.numActivities = numActivities; |
| ci.numRunning = numRunning; |
| //System.out.println( |
| // "#" + maxNum + ": " + " descr=" + ci.description); |
| if (receiver != null) { |
| if (localLOGV) Slog.v( |
| TAG, "State=" + top.state + "Idle=" + top.idle |
| + " app=" + top.app |
| + " thr=" + (top.app != null ? top.app.thread : null)); |
| if (top.state == ActivityState.RESUMED || top.state == ActivityState.PAUSING) { |
| if (top.idle && top.app != null && top.app.thread != null) { |
| topRecord = top; |
| } else { |
| top.thumbnailNeeded = true; |
| } |
| } |
| pending.pendingRecords.add(top); |
| } |
| list.add(ci); |
| } |
| return topRecord; |
| } |
| |
| public void unhandledBackLocked() { |
| final int top = mTaskHistory.size() - 1; |
| if (DEBUG_SWITCH) Slog.d( |
| TAG, "Performing unhandledBack(): top activity at " + top); |
| if (top >= 0) { |
| final ArrayList<ActivityRecord> activities = mTaskHistory.get(top).mActivities; |
| int activityTop = activities.size() - 1; |
| if (activityTop > 0) { |
| finishActivityLocked(activities.get(activityTop), Activity.RESULT_CANCELED, null, |
| "unhandled-back", true); |
| } |
| } |
| } |
| |
| /** |
| * Reset local parameters because an app's activity died. |
| * @param app The app of the activity that died. |
| * @return result from removeHistoryRecordsForAppLocked. |
| */ |
| boolean handleAppDiedLocked(ProcessRecord app) { |
| if (mPausingActivity != null && mPausingActivity.app == app) { |
| if (DEBUG_PAUSE || DEBUG_CLEANUP) Slog.v(TAG, |
| "App died while pausing: " + mPausingActivity); |
| mPausingActivity = null; |
| } |
| if (mLastPausedActivity != null && mLastPausedActivity.app == app) { |
| mLastPausedActivity = null; |
| mLastNoHistoryActivity = null; |
| } |
| |
| return removeHistoryRecordsForAppLocked(app); |
| } |
| |
| void handleAppCrashLocked(ProcessRecord app) { |
| for (int taskNdx = mTaskHistory.size() - 1; taskNdx >= 0; --taskNdx) { |
| final ArrayList<ActivityRecord> activities = mTaskHistory.get(taskNdx).mActivities; |
| for (int activityNdx = activities.size() - 1; activityNdx >= 0; --activityNdx) { |
| final ActivityRecord r = activities.get(activityNdx); |
| if (r.app == app) { |
| Slog.w(TAG, " Force finishing activity " |
| + r.intent.getComponent().flattenToShortString()); |
| finishActivityLocked(r, Activity.RESULT_CANCELED, null, "crashed", false); |
| } |
| } |
| } |
| } |
| |
| boolean dumpActivitiesLocked(FileDescriptor fd, PrintWriter pw, boolean dumpAll, |
| boolean dumpClient, String dumpPackage, boolean needSep, String header) { |
| boolean printed = false; |
| for (int taskNdx = mTaskHistory.size() - 1; taskNdx >= 0; --taskNdx) { |
| final TaskRecord task = mTaskHistory.get(taskNdx); |
| printed |= ActivityStackSupervisor.dumpHistoryList(fd, pw, |
| mTaskHistory.get(taskNdx).mActivities, " ", "Hist", true, !dumpAll, |
| dumpClient, dumpPackage, needSep, header, |
| " Task id #" + task.taskId); |
| if (printed) { |
| header = null; |
| } |
| } |
| return printed; |
| } |
| |
| ArrayList<ActivityRecord> getDumpActivitiesLocked(String name) { |
| ArrayList<ActivityRecord> activities = new ArrayList<ActivityRecord>(); |
| |
| if ("all".equals(name)) { |
| for (int taskNdx = mTaskHistory.size() - 1; taskNdx >= 0; --taskNdx) { |
| activities.addAll(mTaskHistory.get(taskNdx).mActivities); |
| } |
| } else if ("top".equals(name)) { |
| final int top = mTaskHistory.size() - 1; |
| if (top >= 0) { |
| final ArrayList<ActivityRecord> list = mTaskHistory.get(top).mActivities; |
| int listTop = list.size() - 1; |
| if (listTop >= 0) { |
| activities.add(list.get(listTop)); |
| } |
| } |
| } else { |
| ItemMatcher matcher = new ItemMatcher(); |
| matcher.build(name); |
| |
| for (int taskNdx = mTaskHistory.size() - 1; taskNdx >= 0; --taskNdx) { |
| for (ActivityRecord r1 : mTaskHistory.get(taskNdx).mActivities) { |
| if (matcher.match(r1, r1.intent.getComponent())) { |
| activities.add(r1); |
| } |
| } |
| } |
| } |
| |
| return activities; |
| } |
| |
| ActivityRecord restartPackage(String packageName) { |
| ActivityRecord starting = topRunningActivityLocked(null); |
| |
| // All activities that came from the package must be |
| // restarted as if there was a config change. |
| for (int taskNdx = mTaskHistory.size() - 1; taskNdx >= 0; --taskNdx) { |
| final ArrayList<ActivityRecord> activities = mTaskHistory.get(taskNdx).mActivities; |
| for (int activityNdx = activities.size() - 1; activityNdx >= 0; --activityNdx) { |
| final ActivityRecord a = activities.get(activityNdx); |
| if (a.info.packageName.equals(packageName)) { |
| a.forceNewConfig = true; |
| if (starting != null && a == starting && a.visible) { |
| a.startFreezingScreenLocked(starting.app, |
| ActivityInfo.CONFIG_SCREEN_LAYOUT); |
| } |
| } |
| } |
| } |
| |
| return starting; |
| } |
| |
| void removeTask(TaskRecord task) { |
| mStackSupervisor.endLockTaskModeIfTaskEnding(task); |
| mWindowManager.removeTask(task.taskId); |
| final ActivityRecord r = mResumedActivity; |
| if (r != null && r.task == task) { |
| mResumedActivity = null; |
| } |
| |
| final int taskNdx = mTaskHistory.indexOf(task); |
| final int topTaskNdx = mTaskHistory.size() - 1; |
| if (task.mOnTopOfHome && taskNdx < topTaskNdx) { |
| mTaskHistory.get(taskNdx + 1).mOnTopOfHome = true; |
| } |
| mTaskHistory.remove(task); |
| |
| if (mTaskHistory.isEmpty()) { |
| if (DEBUG_STACK) Slog.i(TAG, "removeTask: moving to back stack=" + this); |
| if (isOnHomeDisplay()) { |
| mStackSupervisor.moveHomeStack(!isHomeStack()); |
| } |
| if (mStacks != null) { |
| mStacks.remove(this); |
| mStacks.add(0, this); |
| } |
| } |
| } |
| |
| TaskRecord createTaskRecord(int taskId, ActivityInfo info, Intent intent, boolean toTop) { |
| TaskRecord task = new TaskRecord(taskId, info, intent); |
| addTask(task, toTop); |
| return task; |
| } |
| |
| ArrayList<TaskRecord> getAllTasks() { |
| return new ArrayList<TaskRecord>(mTaskHistory); |
| } |
| |
| void addTask(final TaskRecord task, final boolean toTop) { |
| task.stack = this; |
| if (toTop) { |
| insertTaskAtTop(task); |
| } else { |
| mTaskHistory.add(0, task); |
| } |
| } |
| |
| public int getStackId() { |
| return mStackId; |
| } |
| |
| @Override |
| public String toString() { |
| return "ActivityStack{" + Integer.toHexString(System.identityHashCode(this)) |
| + " stackId=" + mStackId + ", " + mTaskHistory.size() + " tasks}"; |
| } |
| } |