| /* |
| * Copyright (C) 2018 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.wm; |
| |
| import static android.app.ActivityManager.START_TASK_TO_FRONT; |
| import static android.app.WindowConfiguration.ACTIVITY_TYPE_HOME; |
| import static android.app.WindowConfiguration.ACTIVITY_TYPE_RECENTS; |
| import static android.app.WindowConfiguration.WINDOWING_MODE_UNDEFINED; |
| import static android.content.Intent.FLAG_ACTIVITY_NEW_TASK; |
| import static android.content.Intent.FLAG_ACTIVITY_NO_ANIMATION; |
| import static android.os.Trace.TRACE_TAG_WINDOW_MANAGER; |
| |
| import static com.android.internal.protolog.ProtoLogGroup.WM_DEBUG_RECENTS_ANIMATIONS; |
| import static com.android.server.wm.ActivityRecord.State.STOPPED; |
| import static com.android.server.wm.ActivityRecord.State.STOPPING; |
| import static com.android.server.wm.ActivityTaskSupervisor.PRESERVE_WINDOWS; |
| import static com.android.server.wm.RecentsAnimationController.REORDER_KEEP_IN_PLACE; |
| import static com.android.server.wm.RecentsAnimationController.REORDER_MOVE_TO_ORIGINAL_POSITION; |
| import static com.android.server.wm.RecentsAnimationController.REORDER_MOVE_TO_TOP; |
| import static com.android.server.wm.TaskDisplayArea.getRootTaskAbove; |
| |
| import android.annotation.Nullable; |
| import android.app.ActivityOptions; |
| import android.content.ComponentName; |
| import android.content.Intent; |
| import android.os.RemoteException; |
| import android.os.Trace; |
| import android.util.Slog; |
| import android.view.IRecentsAnimationRunner; |
| |
| import com.android.internal.protolog.common.ProtoLog; |
| import com.android.internal.util.function.pooled.PooledLambda; |
| import com.android.internal.util.function.pooled.PooledPredicate; |
| import com.android.server.wm.ActivityMetricsLogger.LaunchingState; |
| import com.android.server.wm.RecentsAnimationController.RecentsAnimationCallbacks; |
| import com.android.server.wm.TaskDisplayArea.OnRootTaskOrderChangedListener; |
| |
| /** |
| * Manages the recents animation, including the reordering of the root tasks for the transition and |
| * cleanup. See {@link com.android.server.wm.RecentsAnimationController}. |
| */ |
| class RecentsAnimation implements RecentsAnimationCallbacks, OnRootTaskOrderChangedListener { |
| private static final String TAG = RecentsAnimation.class.getSimpleName(); |
| |
| private final ActivityTaskManagerService mService; |
| private final ActivityTaskSupervisor mTaskSupervisor; |
| private final ActivityStartController mActivityStartController; |
| private final WindowManagerService mWindowManager; |
| private final TaskDisplayArea mDefaultTaskDisplayArea; |
| private final Intent mTargetIntent; |
| private final ComponentName mRecentsComponent; |
| private final @Nullable String mRecentsFeatureId; |
| private final int mRecentsUid; |
| private final @Nullable WindowProcessController mCaller; |
| private final int mUserId; |
| private final int mTargetActivityType; |
| |
| /** |
| * The activity which has been launched behind. We need to remember the activity because the |
| * target root task may have other activities, then we are able to restore the launch-behind |
| * state for the exact activity. |
| */ |
| private ActivityRecord mLaunchedTargetActivity; |
| |
| // The root task to restore the target root task behind when the animation is finished |
| private Task mRestoreTargetBehindRootTask; |
| |
| RecentsAnimation(ActivityTaskManagerService atm, ActivityTaskSupervisor taskSupervisor, |
| ActivityStartController activityStartController, WindowManagerService wm, |
| Intent targetIntent, ComponentName recentsComponent, @Nullable String recentsFeatureId, |
| int recentsUid, @Nullable WindowProcessController caller) { |
| mService = atm; |
| mTaskSupervisor = taskSupervisor; |
| mDefaultTaskDisplayArea = mService.mRootWindowContainer.getDefaultTaskDisplayArea(); |
| mActivityStartController = activityStartController; |
| mWindowManager = wm; |
| mTargetIntent = targetIntent; |
| mRecentsComponent = recentsComponent; |
| mRecentsFeatureId = recentsFeatureId; |
| mRecentsUid = recentsUid; |
| mCaller = caller; |
| mUserId = atm.getCurrentUserId(); |
| mTargetActivityType = targetIntent.getComponent() != null |
| && recentsComponent.equals(targetIntent.getComponent()) |
| ? ACTIVITY_TYPE_RECENTS |
| : ACTIVITY_TYPE_HOME; |
| } |
| |
| /** |
| * Starts the recents activity in background without animation if the record doesn't exist or |
| * the client isn't launched. If the recents activity is already alive, ensure its configuration |
| * is updated to the current one. |
| */ |
| void preloadRecentsActivity() { |
| ProtoLog.d(WM_DEBUG_RECENTS_ANIMATIONS, "Preload recents with %s", |
| mTargetIntent); |
| Task targetRootTask = mDefaultTaskDisplayArea.getRootTask(WINDOWING_MODE_UNDEFINED, |
| mTargetActivityType); |
| ActivityRecord targetActivity = getTargetActivity(targetRootTask); |
| if (targetActivity != null) { |
| if (targetActivity.isVisibleRequested() || targetActivity.isTopRunningActivity()) { |
| // The activity is ready. |
| return; |
| } |
| if (targetActivity.attachedToProcess()) { |
| // The activity may be relaunched if it cannot handle the current configuration |
| // changes. The activity will be paused state if it is relaunched, otherwise it |
| // keeps the original stopped state. |
| targetActivity.ensureActivityConfiguration(0 /* globalChanges */, |
| false /* preserveWindow */, true /* ignoreVisibility */); |
| ProtoLog.d(WM_DEBUG_RECENTS_ANIMATIONS, "Updated config=%s", |
| targetActivity.getConfiguration()); |
| } |
| } else if (mDefaultTaskDisplayArea.getActivity( |
| ActivityRecord::occludesParent, false /* traverseTopToBottom */) == null) { |
| // Skip because none of above activities can occlude the target activity. The preload |
| // should be done silently in background without being visible. |
| return; |
| } else { |
| // Create the activity record. Because the activity is invisible, this doesn't really |
| // start the client. |
| startRecentsActivityInBackground("preloadRecents"); |
| targetRootTask = mDefaultTaskDisplayArea.getRootTask(WINDOWING_MODE_UNDEFINED, |
| mTargetActivityType); |
| targetActivity = getTargetActivity(targetRootTask); |
| if (targetActivity == null) { |
| Slog.w(TAG, "Cannot start " + mTargetIntent); |
| return; |
| } |
| } |
| |
| if (!targetActivity.attachedToProcess()) { |
| ProtoLog.d(WM_DEBUG_RECENTS_ANIMATIONS, "Real start recents"); |
| mTaskSupervisor.startSpecificActivity(targetActivity, false /* andResume */, |
| false /* checkConfig */); |
| // Make sure the activity won't be involved in transition. |
| if (targetActivity.getDisplayContent() != null) { |
| targetActivity.getDisplayContent().mUnknownAppVisibilityController |
| .appRemovedOrHidden(targetActivity); |
| } |
| } |
| |
| // Invisible activity should be stopped. If the recents activity is alive and its doesn't |
| // need to relaunch by current configuration, then it may be already in stopped state. |
| if (!targetActivity.isState(STOPPING, STOPPED)) { |
| // Add to stopping instead of stop immediately. So the client has the chance to perform |
| // traversal in non-stopped state (ViewRootImpl.mStopped) that would initialize more |
| // things (e.g. the measure can be done earlier). The actual stop will be performed when |
| // it reports idle. |
| targetActivity.addToStopping(true /* scheduleIdle */, true /* idleDelayed */, |
| "preloadRecents"); |
| } |
| } |
| |
| void startRecentsActivity(IRecentsAnimationRunner recentsAnimationRunner, long eventTime) { |
| ProtoLog.d(WM_DEBUG_RECENTS_ANIMATIONS, "startRecentsActivity(): intent=%s", mTargetIntent); |
| Trace.traceBegin(TRACE_TAG_WINDOW_MANAGER, "RecentsAnimation#startRecentsActivity"); |
| |
| // Cancel any existing recents animation running synchronously (do not hold the |
| // WM lock) before starting the newly requested recents animation as they can not coexist |
| if (mWindowManager.getRecentsAnimationController() != null) { |
| mWindowManager.getRecentsAnimationController().forceCancelAnimation( |
| REORDER_MOVE_TO_ORIGINAL_POSITION, "startRecentsActivity"); |
| } |
| |
| // If the activity is associated with the root recents task, then try and get that first |
| Task targetRootTask = mDefaultTaskDisplayArea.getRootTask(WINDOWING_MODE_UNDEFINED, |
| mTargetActivityType); |
| ActivityRecord targetActivity = getTargetActivity(targetRootTask); |
| final boolean hasExistingActivity = targetActivity != null; |
| if (hasExistingActivity) { |
| mRestoreTargetBehindRootTask = getRootTaskAbove(targetRootTask); |
| if (mRestoreTargetBehindRootTask == null |
| && targetRootTask.getTopMostTask() == targetActivity.getTask()) { |
| notifyAnimationCancelBeforeStart(recentsAnimationRunner); |
| ProtoLog.d(WM_DEBUG_RECENTS_ANIMATIONS, |
| "No root task above target root task=%s", targetRootTask); |
| return; |
| } |
| } |
| |
| // Send launch hint if we are actually launching the target. If it's already visible |
| // (shouldn't happen in general) we don't need to send it. |
| if (targetActivity == null || !targetActivity.isVisibleRequested()) { |
| mService.mRootWindowContainer.startPowerModeLaunchIfNeeded( |
| true /* forceSend */, targetActivity); |
| } |
| |
| final LaunchingState launchingState = |
| mTaskSupervisor.getActivityMetricsLogger().notifyActivityLaunching(mTargetIntent); |
| |
| setProcessAnimating(true); |
| |
| mService.deferWindowLayout(); |
| try { |
| if (hasExistingActivity) { |
| // Move the recents activity into place for the animation if it is not top most |
| mDefaultTaskDisplayArea.moveRootTaskBehindBottomMostVisibleRootTask(targetRootTask); |
| ProtoLog.d(WM_DEBUG_RECENTS_ANIMATIONS, "Moved rootTask=%s behind rootTask=%s", |
| targetRootTask, getRootTaskAbove(targetRootTask)); |
| |
| // If there are multiple tasks in the target root task (ie. the root home task, |
| // with 3p and default launchers coexisting), then move the task to the top as a |
| // part of moving the root task to the front |
| final Task task = targetActivity.getTask(); |
| if (targetRootTask.getTopMostTask() != task) { |
| targetRootTask.positionChildAtTop(task); |
| } |
| } else { |
| // No recents activity, create the new recents activity bottom most |
| startRecentsActivityInBackground("startRecentsActivity_noTargetActivity"); |
| |
| // Move the recents activity into place for the animation |
| targetRootTask = mDefaultTaskDisplayArea.getRootTask(WINDOWING_MODE_UNDEFINED, |
| mTargetActivityType); |
| targetActivity = getTargetActivity(targetRootTask); |
| mDefaultTaskDisplayArea.moveRootTaskBehindBottomMostVisibleRootTask(targetRootTask); |
| ProtoLog.d(WM_DEBUG_RECENTS_ANIMATIONS, "Moved rootTask=%s behind rootTask=%s", |
| targetRootTask, getRootTaskAbove(targetRootTask)); |
| |
| mWindowManager.prepareAppTransitionNone(); |
| mWindowManager.executeAppTransition(); |
| |
| // TODO: Maybe wait for app to draw in this particular case? |
| |
| ProtoLog.d(WM_DEBUG_RECENTS_ANIMATIONS, "Started intent=%s", mTargetIntent); |
| } |
| |
| // Mark the target activity as launch-behind to bump its visibility for the |
| // duration of the gesture that is driven by the recents component |
| targetActivity.mLaunchTaskBehind = true; |
| mLaunchedTargetActivity = targetActivity; |
| // TODO(b/156772625): Evaluate to send new intents vs. replacing the intent extras. |
| targetActivity.intent.replaceExtras(mTargetIntent); |
| |
| // Fetch all the surface controls and pass them to the client to get the animation |
| // started |
| mWindowManager.initializeRecentsAnimation(mTargetActivityType, recentsAnimationRunner, |
| this, mDefaultTaskDisplayArea.getDisplayId(), |
| mTaskSupervisor.mRecentTasks.getRecentTaskIds(), targetActivity); |
| |
| // If we updated the launch-behind state, update the visibility of the activities after |
| // we fetch the visible tasks to be controlled by the animation |
| mService.mRootWindowContainer.ensureActivitiesVisible(null, 0, PRESERVE_WINDOWS); |
| |
| ActivityOptions options = null; |
| if (eventTime > 0) { |
| options = ActivityOptions.makeBasic(); |
| options.setSourceInfo(ActivityOptions.SourceInfo.TYPE_RECENTS_ANIMATION, eventTime); |
| } |
| mTaskSupervisor.getActivityMetricsLogger().notifyActivityLaunched(launchingState, |
| START_TASK_TO_FRONT, !hasExistingActivity, targetActivity, options); |
| |
| // Register for root task order changes |
| mDefaultTaskDisplayArea.registerRootTaskOrderChangedListener(this); |
| } catch (Exception e) { |
| Slog.e(TAG, "Failed to start recents activity", e); |
| throw e; |
| } finally { |
| mService.continueWindowLayout(); |
| Trace.traceEnd(TRACE_TAG_WINDOW_MANAGER); |
| } |
| } |
| |
| private void finishAnimation(@RecentsAnimationController.ReorderMode int reorderMode, |
| boolean sendUserLeaveHint) { |
| synchronized (mService.mGlobalLock) { |
| ProtoLog.d(WM_DEBUG_RECENTS_ANIMATIONS, |
| "onAnimationFinished(): controller=%s reorderMode=%d", |
| mWindowManager.getRecentsAnimationController(), reorderMode); |
| |
| // Unregister for root task order changes |
| mDefaultTaskDisplayArea.unregisterRootTaskOrderChangedListener(this); |
| |
| final RecentsAnimationController controller = |
| mWindowManager.getRecentsAnimationController(); |
| if (controller == null) return; |
| |
| // Just to be sure end the launch hint in case the target activity was never launched. |
| // However, if we're keeping the activity and making it visible, we can leave it on. |
| if (reorderMode != REORDER_KEEP_IN_PLACE) { |
| mService.endLaunchPowerMode( |
| ActivityTaskManagerService.POWER_MODE_REASON_START_ACTIVITY); |
| } |
| |
| // Once the target is shown, prevent spurious background app switches |
| if (reorderMode == REORDER_MOVE_TO_TOP) { |
| mService.stopAppSwitches(); |
| } |
| |
| mWindowManager.inSurfaceTransaction(() -> { |
| Trace.traceBegin(TRACE_TAG_WINDOW_MANAGER, |
| "RecentsAnimation#onAnimationFinished_inSurfaceTransaction"); |
| mService.deferWindowLayout(); |
| try { |
| mWindowManager.cleanupRecentsAnimation(reorderMode); |
| |
| final Task targetRootTask = mDefaultTaskDisplayArea.getRootTask( |
| WINDOWING_MODE_UNDEFINED, mTargetActivityType); |
| // Prefer to use the original target activity instead of top activity because |
| // we may have moved another task to top (starting 3p launcher). |
| final ActivityRecord targetActivity = targetRootTask != null |
| ? targetRootTask.isInTask(mLaunchedTargetActivity) |
| : null; |
| ProtoLog.d(WM_DEBUG_RECENTS_ANIMATIONS, |
| "onAnimationFinished(): targetRootTask=%s targetActivity=%s " |
| + "mRestoreTargetBehindRootTask=%s", |
| targetRootTask, targetActivity, mRestoreTargetBehindRootTask); |
| if (targetActivity == null) { |
| return; |
| } |
| |
| // Restore the launched-behind state |
| targetActivity.mLaunchTaskBehind = false; |
| |
| if (reorderMode == REORDER_MOVE_TO_TOP) { |
| // Bring the target root task to the front |
| mTaskSupervisor.mNoAnimActivities.add(targetActivity); |
| |
| if (sendUserLeaveHint) { |
| // Setting this allows the previous app to PiP. |
| mTaskSupervisor.mUserLeaving = true; |
| targetRootTask.moveTaskToFront(targetActivity.getTask(), |
| true /* noAnimation */, null /* activityOptions */, |
| targetActivity.appTimeTracker, |
| "RecentsAnimation.onAnimationFinished()"); |
| } else { |
| targetRootTask.moveToFront("RecentsAnimation.onAnimationFinished()"); |
| } |
| |
| if (WM_DEBUG_RECENTS_ANIMATIONS.isLogToAny()) { |
| final Task topRootTask = getTopNonAlwaysOnTopRootTask(); |
| if (topRootTask != targetRootTask) { |
| ProtoLog.w(WM_DEBUG_RECENTS_ANIMATIONS, |
| "Expected target rootTask=%s" |
| + " to be top most but found rootTask=%s", |
| targetRootTask, topRootTask); |
| } |
| } |
| } else if (reorderMode == REORDER_MOVE_TO_ORIGINAL_POSITION){ |
| // Restore the target root task to its previous position |
| final TaskDisplayArea taskDisplayArea = targetActivity.getDisplayArea(); |
| taskDisplayArea.moveRootTaskBehindRootTask(targetRootTask, |
| mRestoreTargetBehindRootTask); |
| if (WM_DEBUG_RECENTS_ANIMATIONS.isLogToAny()) { |
| final Task aboveTargetRootTask = getRootTaskAbove(targetRootTask); |
| if (mRestoreTargetBehindRootTask != null |
| && aboveTargetRootTask != mRestoreTargetBehindRootTask) { |
| ProtoLog.w(WM_DEBUG_RECENTS_ANIMATIONS, |
| "Expected target rootTask=%s to restored behind " |
| + "rootTask=%s but it is behind rootTask=%s", |
| targetRootTask, mRestoreTargetBehindRootTask, |
| aboveTargetRootTask); |
| } |
| } |
| } else { |
| // If there is no recents screenshot animation, we can update the visibility |
| // of target root task immediately because it is visually invisible and the |
| // launch-behind state is restored. That also prevents the next transition |
| // type being disturbed if the visibility is updated after setting the next |
| // transition (the target activity will be one of closing apps). |
| if (!controller.shouldDeferCancelWithScreenshot() |
| && !targetRootTask.isFocusedRootTaskOnDisplay()) { |
| targetRootTask.ensureActivitiesVisible(null /* starting */, |
| 0 /* starting */, false /* preserveWindows */); |
| } |
| // Keep target root task in place, nothing changes, so ignore the transition |
| // logic below |
| return; |
| } |
| |
| mWindowManager.prepareAppTransitionNone(); |
| mService.mRootWindowContainer.ensureActivitiesVisible(null, 0, false); |
| mService.mRootWindowContainer.resumeFocusedTasksTopActivities(); |
| |
| // No reason to wait for the pausing activity in this case, as the hiding of |
| // surfaces needs to be done immediately. |
| mWindowManager.executeAppTransition(); |
| |
| final Task rootTask = targetRootTask.getRootTask(); |
| // Client state may have changed during the recents animation, so force |
| // send task info so the client can synchronize its state. |
| rootTask.dispatchTaskInfoChangedIfNeeded(true /* force */); |
| } catch (Exception e) { |
| Slog.e(TAG, "Failed to clean up recents activity", e); |
| throw e; |
| } finally { |
| mTaskSupervisor.mUserLeaving = false; |
| mService.continueWindowLayout(); |
| // Make sure the surfaces are updated with the latest state. Sometimes the |
| // surface placement may be skipped if display configuration is changed (i.e. |
| // {@link DisplayContent#mWaitingForConfig} is true). |
| if (mWindowManager.mRoot.isLayoutNeeded()) { |
| mWindowManager.mRoot.performSurfacePlacement(); |
| } |
| setProcessAnimating(false); |
| Trace.traceEnd(TRACE_TAG_WINDOW_MANAGER); |
| } |
| }); |
| } |
| } |
| |
| /** Gives the owner of recents animation higher priority. */ |
| private void setProcessAnimating(boolean animating) { |
| if (mCaller == null) return; |
| // Apply the top-app scheduling group to who runs the animation. |
| mCaller.setRunningRecentsAnimation(animating); |
| int demoteReasons = mService.mDemoteTopAppReasons; |
| if (animating) { |
| demoteReasons |= ActivityTaskManagerService.DEMOTE_TOP_REASON_ANIMATING_RECENTS; |
| } else { |
| demoteReasons &= ~ActivityTaskManagerService.DEMOTE_TOP_REASON_ANIMATING_RECENTS; |
| } |
| mService.mDemoteTopAppReasons = demoteReasons; |
| // Make the demotion of the real top app take effect. No need to restore top app state for |
| // finishing recents because addToStopping -> scheduleIdle -> activityIdleInternal -> |
| // trimApplications will have a full update. |
| if (animating && mService.mTopApp != null) { |
| mService.mTopApp.scheduleUpdateOomAdj(); |
| } |
| } |
| |
| @Override |
| public void onAnimationFinished(@RecentsAnimationController.ReorderMode int reorderMode, |
| boolean sendUserLeaveHint) { |
| finishAnimation(reorderMode, sendUserLeaveHint); |
| } |
| |
| @Override |
| public void onRootTaskOrderChanged(Task rootTask) { |
| ProtoLog.d(WM_DEBUG_RECENTS_ANIMATIONS, "onRootTaskOrderChanged(): rootTask=%s", rootTask); |
| if (mDefaultTaskDisplayArea.getRootTask(t -> t == rootTask) == null |
| || !rootTask.shouldBeVisible(null)) { |
| // The root task is not visible, so ignore this change |
| return; |
| } |
| final RecentsAnimationController controller = |
| mWindowManager.getRecentsAnimationController(); |
| if (controller == null) { |
| return; |
| } |
| |
| // We defer canceling the recents animation until the next app transition in the following |
| // cases: |
| // 1) The next launching task is not being animated by the recents animation |
| // 2) The next task is home activity. (i.e. pressing home key to back home in recents). |
| if ((!controller.isAnimatingTask(rootTask.getTopMostTask()) |
| || controller.isTargetApp(rootTask.getTopNonFinishingActivity())) |
| && controller.shouldDeferCancelUntilNextTransition()) { |
| // Always prepare an app transition since we rely on the transition callbacks to cleanup |
| mWindowManager.prepareAppTransitionNone(); |
| controller.setCancelOnNextTransitionStart(); |
| } |
| } |
| |
| private void startRecentsActivityInBackground(String reason) { |
| final ActivityOptions options = ActivityOptions.makeBasic(); |
| options.setLaunchActivityType(mTargetActivityType); |
| options.setAvoidMoveToFront(); |
| mTargetIntent.addFlags(FLAG_ACTIVITY_NEW_TASK | FLAG_ACTIVITY_NO_ANIMATION); |
| |
| mActivityStartController |
| .obtainStarter(mTargetIntent, reason) |
| .setCallingUid(mRecentsUid) |
| .setCallingPackage(mRecentsComponent.getPackageName()) |
| .setCallingFeatureId(mRecentsFeatureId) |
| .setActivityOptions(new SafeActivityOptions(options)) |
| .setUserId(mUserId) |
| .execute(); |
| } |
| |
| /** |
| * Called only when the animation should be canceled prior to starting. |
| */ |
| static void notifyAnimationCancelBeforeStart(IRecentsAnimationRunner recentsAnimationRunner) { |
| try { |
| recentsAnimationRunner.onAnimationCanceled(null /* taskIds */, |
| null /* taskSnapshots */); |
| } catch (RemoteException e) { |
| Slog.e(TAG, "Failed to cancel recents animation before start", e); |
| } |
| } |
| |
| /** |
| * @return The top root task that is not always-on-top. |
| */ |
| private Task getTopNonAlwaysOnTopRootTask() { |
| return mDefaultTaskDisplayArea.getRootTask(task -> |
| !task.getWindowConfiguration().isAlwaysOnTop()); |
| } |
| |
| /** |
| * @return the top activity in the {@param targetRootTask} matching the {@param component}, |
| * or just the top activity of the top task if no task matches the component. |
| */ |
| private ActivityRecord getTargetActivity(Task targetRootTask) { |
| if (targetRootTask == null) { |
| return null; |
| } |
| |
| final PooledPredicate p = PooledLambda.obtainPredicate(RecentsAnimation::matchesTarget, |
| this, PooledLambda.__(Task.class)); |
| final Task task = targetRootTask.getTask(p); |
| p.recycle(); |
| return task != null ? task.getTopNonFinishingActivity() : null; |
| } |
| |
| private boolean matchesTarget(Task task) { |
| return task.getNonFinishingActivityCount() > 0 && task.mUserId == mUserId |
| && task.getBaseIntent().getComponent().equals(mTargetIntent.getComponent()); |
| } |
| } |