From 6f9a0bf04468f55ba147263ed678e66a93450e61 Mon Sep 17 00:00:00 2001 From: Riddle Hsu Date: Sat, 25 Jul 2020 00:37:48 +0800 Subject: [PATCH] Finish fixed rotation after recents moved to top While the task transition is running, its activity is the animation source. If recents animation is triggered and finished before the transition is done, the animation source will be notified that the transition is finished. At this timing, the rotated activity is still the top activity. Since it is moving to back, the display orientation is unnecessary to be updated for the intermediate state. That avoids flickering by not committing visibility due to configuration change. Fixes: 160239226 Test: atest RecentsAnimationControllerTest# \ testKeepFixedRotationWhenMovingRecentsToTop Change-Id: I5c5c12338b9bc0cd8a99655a843a33d8729f8892 --- .../com/android/server/wm/DisplayContent.java | 21 +++++++++++-- .../server/wm/RecentsAnimationController.java | 8 +++-- .../server/wm/DisplayContentTests.java | 2 +- .../wm/RecentsAnimationControllerTest.java | 30 +++++++++++++++++-- 4 files changed, 53 insertions(+), 8 deletions(-) diff --git a/services/core/java/com/android/server/wm/DisplayContent.java b/services/core/java/com/android/server/wm/DisplayContent.java index 0b1f4d9e16136..314a1cd3825cb 100644 --- a/services/core/java/com/android/server/wm/DisplayContent.java +++ b/services/core/java/com/android/server/wm/DisplayContent.java @@ -5403,6 +5403,9 @@ class DisplayContent extends RootDisplayArea implements WindowManagerPolicy.Disp */ private ActivityRecord mAnimatingRecents; + /** Whether {@link #mAnimatingRecents} is going to be the top activity. */ + private boolean mRecentsWillBeTop; + /** * If the recents activity has a fixed orientation which is different from the current top * activity, it will be rotated before being shown so we avoid a screen rotation animation @@ -5428,10 +5431,12 @@ class DisplayContent extends RootDisplayArea implements WindowManagerPolicy.Disp * If {@link #mAnimatingRecents} still has fixed rotation, it should be moved to top so we * don't clear {@link #mFixedRotationLaunchingApp} that will be handled by transition. */ - void onFinishRecentsAnimation(boolean moveRecentsToBack) { + void onFinishRecentsAnimation() { final ActivityRecord animatingRecents = mAnimatingRecents; + final boolean recentsWillBeTop = mRecentsWillBeTop; mAnimatingRecents = null; - if (!moveRecentsToBack) { + mRecentsWillBeTop = false; + if (recentsWillBeTop) { // The recents activity will be the top, such as staying at recents list or // returning to home (if home and recents are the same activity). return; @@ -5454,6 +5459,10 @@ class DisplayContent extends RootDisplayArea implements WindowManagerPolicy.Disp } } + void notifyRecentsWillBeTop() { + mRecentsWillBeTop = true; + } + /** * Return {@code true} if there is an ongoing animation to the "Recents" activity and this * activity as a fixed orientation so shouldn't be rotated. @@ -5474,6 +5483,14 @@ class DisplayContent extends RootDisplayArea implements WindowManagerPolicy.Disp if (r == null || r == mAnimatingRecents) { return; } + if (mAnimatingRecents != null && mRecentsWillBeTop) { + // The activity is not the recents and it should be moved to back later, so it is + // better to keep its current appearance for the next transition. Otherwise the + // display orientation may be updated too early and the layout procedures at the + // end of finishing recents animation is skipped. That causes flickering because + // the surface of closing app hasn't updated to invisible. + return; + } if (mFixedRotationLaunchingApp == null) { // In most cases this is a no-op if the activity doesn't have fixed rotation. // Otherwise it could be from finishing recents animation while the display has diff --git a/services/core/java/com/android/server/wm/RecentsAnimationController.java b/services/core/java/com/android/server/wm/RecentsAnimationController.java index f5bd4cd866a6b..6b3a5d6bf18cd 100644 --- a/services/core/java/com/android/server/wm/RecentsAnimationController.java +++ b/services/core/java/com/android/server/wm/RecentsAnimationController.java @@ -702,6 +702,11 @@ public class RecentsAnimationController implements DeathRecipient { "cleanupAnimation(): Notify animation finished mPendingAnimations=%d " + "reorderMode=%d", mPendingAnimations.size(), reorderMode); + if (reorderMode != REORDER_MOVE_TO_ORIGINAL_POSITION) { + // Notify the state at the beginning because the removeAnimation may notify the + // transition is finished. This is a signal that there will be a next transition. + mDisplayContent.mFixedRotationTransitionListener.notifyRecentsWillBeTop(); + } for (int i = mPendingAnimations.size() - 1; i >= 0; i--) { final TaskAnimationAdapter taskAdapter = mPendingAnimations.get(i); if (reorderMode == REORDER_MOVE_TO_TOP || reorderMode == REORDER_KEEP_IN_PLACE) { @@ -742,8 +747,7 @@ public class RecentsAnimationController implements DeathRecipient { mTargetActivityRecord.token); } } - mDisplayContent.mFixedRotationTransitionListener.onFinishRecentsAnimation( - reorderMode == REORDER_MOVE_TO_ORIGINAL_POSITION /* moveRecentsToBack */); + mDisplayContent.mFixedRotationTransitionListener.onFinishRecentsAnimation(); // Notify that the animation has ended if (mStatusBar != null) { diff --git a/services/tests/wmtests/src/com/android/server/wm/DisplayContentTests.java b/services/tests/wmtests/src/com/android/server/wm/DisplayContentTests.java index 96ea64667f6e7..edf15361e4456 100644 --- a/services/tests/wmtests/src/com/android/server/wm/DisplayContentTests.java +++ b/services/tests/wmtests/src/com/android/server/wm/DisplayContentTests.java @@ -1354,7 +1354,7 @@ public class DisplayContentTests extends WindowTestsBase { assertFalse(displayRotation.updateRotationUnchecked(false)); // Rotation can be updated if the recents animation is finished. - mDisplayContent.mFixedRotationTransitionListener.onFinishRecentsAnimation(false); + mDisplayContent.mFixedRotationTransitionListener.onFinishRecentsAnimation(); assertTrue(displayRotation.updateRotationUnchecked(false)); // Rotation can be updated if the recents animation is animating but it is not on top, e.g. diff --git a/services/tests/wmtests/src/com/android/server/wm/RecentsAnimationControllerTest.java b/services/tests/wmtests/src/com/android/server/wm/RecentsAnimationControllerTest.java index 695a0e3881ea4..8bc8c0b1169fa 100644 --- a/services/tests/wmtests/src/com/android/server/wm/RecentsAnimationControllerTest.java +++ b/services/tests/wmtests/src/com/android/server/wm/RecentsAnimationControllerTest.java @@ -362,13 +362,14 @@ public class RecentsAnimationControllerTest extends WindowTestsBase { assertFalse(homeActivity.hasFixedRotationTransform()); } - @Test - public void testClearFixedRotationLaunchingAppAfterCleanupAnimation() { - unblockDisplayRotation(mDefaultDisplay); + private ActivityRecord prepareFixedRotationLaunchingAppWithRecentsAnim() { final ActivityRecord homeActivity = createHomeActivity(); homeActivity.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT); final ActivityRecord activity = createActivityRecord(mDefaultDisplay, WINDOWING_MODE_FULLSCREEN, ACTIVITY_TYPE_STANDARD); + // Add a window so it can be animated by the recents. + final WindowState win = createWindow(null, TYPE_BASE_APPLICATION, activity, "win"); + activity.addWindow(win); // Assume an activity is launching to different rotation. mDefaultDisplay.setFixedRotationLaunchingApp(activity, (mDefaultDisplay.getRotation() + 1) % 4); @@ -379,6 +380,14 @@ public class RecentsAnimationControllerTest extends WindowTestsBase { // Before the transition is done, the recents animation is triggered. initializeRecentsAnimationController(mController, homeActivity); assertFalse(homeActivity.hasFixedRotationTransform()); + assertTrue(mController.isAnimatingTask(activity.getTask())); + + return activity; + } + + @Test + public void testClearFixedRotationLaunchingAppAfterCleanupAnimation() { + final ActivityRecord activity = prepareFixedRotationLaunchingAppWithRecentsAnim(); // Simulate giving up the swipe up gesture to keep the original activity as top. mController.cleanupAnimation(REORDER_MOVE_TO_ORIGINAL_POSITION); @@ -387,6 +396,21 @@ public class RecentsAnimationControllerTest extends WindowTestsBase { assertFalse(mDefaultDisplay.hasTopFixedRotationLaunchingApp()); } + @Test + public void testKeepFixedRotationWhenMovingRecentsToTop() { + final ActivityRecord activity = prepareFixedRotationLaunchingAppWithRecentsAnim(); + // Assume a transition animation has started running before recents animation. Then the + // activity will receive onAnimationFinished that notifies app transition finished when + // removing the recents animation of task. + activity.getTask().getAnimationSources().add(activity); + + // Simulate swiping to home/recents before the transition is done. + mController.cleanupAnimation(REORDER_MOVE_TO_TOP); + // The rotation transform should be preserved. In real case, it will be cleared by the next + // move-to-top transition. + assertTrue(activity.hasFixedRotationTransform()); + } + @Test public void testWallpaperHasFixedRotationApplied() { unblockDisplayRotation(mDefaultDisplay);