Use single snapshot when predictive back opens two adjacent activities
For predictivie back, when previous target are two adjacent activities,
use the snapshot or splash screen to occludes them like normal starting
window. When gesture trigger and close transition ready, reparent the
starting surface to task, so the starting surface can play remove
animation.
Bug: 274997067
Test: launch two adjacent task fragments, launch another fullscreen
activity, trigger predictivie back. Verify no flickering when either
trigger gesture back or cancel.
Test: atest BackNavigationControllerTests
Change-Id: I03cafe39c7ad99e4c76be6c325a45f4c2b52cb26
diff --git a/services/core/java/com/android/server/wm/BackNavigationController.java b/services/core/java/com/android/server/wm/BackNavigationController.java
index c2dfa21..38ee456 100644
--- a/services/core/java/com/android/server/wm/BackNavigationController.java
+++ b/services/core/java/com/android/server/wm/BackNavigationController.java
@@ -629,7 +629,7 @@
final ActivityRecord ar = openApps.valueAt(i);
if (mAnimationHandler.isTarget(ar, true /* open */)) {
openApps.removeAt(i);
- mAnimationHandler.markStartingSurfaceMatch();
+ mAnimationHandler.markStartingSurfaceMatch(null /* reparentTransaction */);
}
}
for (int i = closeApps.size() - 1; i >= 0; --i) {
@@ -773,10 +773,15 @@
for (int i = mTmpOpenApps.size() - 1; i >= 0; --i) {
final WindowContainer wc = mTmpOpenApps.get(i);
if (mAnimationHandler.isTarget(wc, true /* open */)) {
- mAnimationHandler.markStartingSurfaceMatch();
+ mAnimationHandler.markStartingSurfaceMatch(startTransaction);
break;
}
}
+ // release animation leash
+ if (mAnimationHandler.mOpenAnimAdaptor.mCloseTransaction != null) {
+ startTransaction.merge(mAnimationHandler.mOpenAnimAdaptor.mCloseTransaction);
+ mAnimationHandler.mOpenAnimAdaptor.mCloseTransaction = null;
+ }
// Because the target will reparent to transition root, so it cannot be controlled by
// animation leash. Hide the close target when transition starts.
startTransaction.hide(mAnimationHandler.mCloseAdaptor.mTarget.getSurfaceControl());
@@ -993,7 +998,7 @@
}
final RemoteAnimationTarget[] targets = new RemoteAnimationTarget[2];
targets[0] = mCloseAdaptor.mAnimationTarget;
- targets[1] = mOpenAnimAdaptor.getOrCreateAnimationTarget();
+ targets[1] = mOpenAnimAdaptor.mRemoteAnimationTarget;
return targets;
}
@@ -1067,11 +1072,12 @@
}
}
- void markStartingSurfaceMatch() {
- mStartingSurfaceTargetMatch = true;
- for (int i = mOpenAnimAdaptor.mAdaptors.length - 1; i >= 0; --i) {
- mOpenAnimAdaptor.mAdaptors[i].reparentWindowlessSurfaceToTarget();
+ void markStartingSurfaceMatch(SurfaceControl.Transaction reparentTransaction) {
+ if (mStartingSurfaceTargetMatch) {
+ return;
}
+ mStartingSurfaceTargetMatch = true;
+ mOpenAnimAdaptor.reparentWindowlessSurfaceToTarget(reparentTransaction);
}
void clearBackAnimateTarget() {
@@ -1140,14 +1146,23 @@
private static class BackWindowAnimationAdaptorWrapper {
final BackWindowAnimationAdaptor[] mAdaptors;
+ // The highest remote animation target, which can be a wrapper if multiple adaptors,
+ // or the single opening target.
+ final RemoteAnimationTarget mRemoteAnimationTarget;
SurfaceControl.Transaction mCloseTransaction;
+ // The starting surface task Id. Used to clear the starting surface if the animation has
+ // requested one during animating.
+ private int mRequestedStartingSurfaceId = INVALID_TASK_ID;
+ private SurfaceControl mStartingSurface;
BackWindowAnimationAdaptorWrapper(boolean isOpen, int switchType,
@NonNull WindowContainer... targets) {
mAdaptors = new BackWindowAnimationAdaptor[targets.length];
for (int i = targets.length - 1; i >= 0; --i) {
mAdaptors[i] = createAdaptor(targets[i], isOpen, switchType);
}
+ mRemoteAnimationTarget = targets.length > 1 ? createWrapTarget()
+ : mAdaptors[0].mAnimationTarget;
}
boolean isValid() {
@@ -1160,75 +1175,151 @@
}
void cleanUp(boolean startingSurfaceMatch) {
+ cleanUpWindowlessSurface(startingSurfaceMatch);
for (int i = mAdaptors.length - 1; i >= 0; --i) {
- mAdaptors[i].cleanUpWindowlessSurface(startingSurfaceMatch);
mAdaptors[i].mTarget.cancelAnimation();
}
+ mRequestedStartingSurfaceId = INVALID_TASK_ID;
+ mStartingSurface = null;
if (mCloseTransaction != null) {
mCloseTransaction.apply();
mCloseTransaction = null;
}
}
- void onAnimationFinish() {
- final SurfaceControl.Transaction pt = mAdaptors[0].mTarget.getPendingTransaction();
- if (mCloseTransaction != null) {
- pt.merge(mCloseTransaction);
- mCloseTransaction = null;
- }
- if (mAdaptors.length > 1) {
- for (int i = mAdaptors.length - 1; i >= 0; --i) {
- final WindowContainer wc = mAdaptors[i].mTarget;
- final WindowContainer parent = wc.getParent();
- if (parent != null) {
- pt.reparent(wc.getSurfaceControl(),
- parent.getSurfaceControl());
- }
- }
- }
- }
-
- @NonNull RemoteAnimationTarget getOrCreateAnimationTarget() {
+ private RemoteAnimationTarget createWrapTarget() {
// Special handle for opening two activities together.
// If we animate both activities separately, the animation area and rounded corner
// would also being handled separately. To make them seem like "open" together, wrap
// their leash with another animation leash.
- if (mAdaptors.length > 1 && mCloseTransaction == null) {
- final Rect unionBounds = new Rect();
- for (int i = mAdaptors.length - 1; i >= 0; --i) {
- unionBounds.union(mAdaptors[i].mAnimationTarget.localBounds);
- }
- final WindowContainer wc = mAdaptors[0].mTarget;
- final Task task = wc.asActivityRecord() != null
- ? wc.asActivityRecord().getTask() : wc.asTask();
- final RemoteAnimationTarget represent = mAdaptors[0].mAnimationTarget;
- final SurfaceControl leashSurface = new SurfaceControl.Builder()
- .setName("cross-animation-leash")
- .setContainerLayer()
- .setHidden(false)
- .setParent(task.getSurfaceControl())
- .build();
- final SurfaceControl.Transaction pt = wc.getPendingTransaction();
- pt.setLayer(leashSurface, wc.getParent().getLastLayer());
- mCloseTransaction = new SurfaceControl.Transaction();
- mCloseTransaction.reparent(leashSurface, null);
- for (int i = mAdaptors.length - 1; i >= 0; --i) {
- BackWindowAnimationAdaptor adaptor = mAdaptors[i];
- pt.reparent(adaptor.mAnimationTarget.leash, leashSurface);
- pt.setPosition(adaptor.mAnimationTarget.leash,
- adaptor.mAnimationTarget.localBounds.left,
- adaptor.mAnimationTarget.localBounds.top);
- }
- return new RemoteAnimationTarget(represent.taskId, represent.mode, leashSurface,
- represent.isTranslucent, represent.clipRect, represent.contentInsets,
- represent.prefixOrderIndex,
- new Point(unionBounds.left, unionBounds.top),
- unionBounds, unionBounds, represent.windowConfiguration,
- true /* isNotInRecents */, null, null, represent.taskInfo,
- represent.allowEnterPip);
- } else {
- return mAdaptors[0].mAnimationTarget;
+ final Rect unionBounds = new Rect();
+ for (int i = mAdaptors.length - 1; i >= 0; --i) {
+ unionBounds.union(mAdaptors[i].mAnimationTarget.localBounds);
}
+ final WindowContainer wc = mAdaptors[0].mTarget;
+ final Task task = wc.asActivityRecord() != null
+ ? wc.asActivityRecord().getTask() : wc.asTask();
+ final RemoteAnimationTarget represent = mAdaptors[0].mAnimationTarget;
+ final SurfaceControl leashSurface = new SurfaceControl.Builder()
+ .setName("cross-animation-leash")
+ .setContainerLayer()
+ .setHidden(false)
+ .setParent(task.getSurfaceControl())
+ .build();
+ mCloseTransaction = new SurfaceControl.Transaction();
+ mCloseTransaction.reparent(leashSurface, null);
+ final SurfaceControl.Transaction pt = wc.getPendingTransaction();
+ pt.setLayer(leashSurface, wc.getParent().getLastLayer());
+ for (int i = mAdaptors.length - 1; i >= 0; --i) {
+ BackWindowAnimationAdaptor adaptor = mAdaptors[i];
+ pt.reparent(adaptor.mAnimationTarget.leash, leashSurface);
+ pt.setPosition(adaptor.mAnimationTarget.leash,
+ adaptor.mAnimationTarget.localBounds.left,
+ adaptor.mAnimationTarget.localBounds.top);
+ // For adjacent activity embedded, reparent Activity to TaskFragment when
+ // animation finish
+ final WindowContainer parent = adaptor.mTarget.getParent();
+ if (parent != null) {
+ mCloseTransaction.reparent(adaptor.mTarget.getSurfaceControl(),
+ parent.getSurfaceControl());
+ }
+ }
+ return new RemoteAnimationTarget(represent.taskId, represent.mode, leashSurface,
+ represent.isTranslucent, represent.clipRect, represent.contentInsets,
+ represent.prefixOrderIndex,
+ new Point(unionBounds.left, unionBounds.top),
+ unionBounds, unionBounds, represent.windowConfiguration,
+ true /* isNotInRecents */, null, null, represent.taskInfo,
+ represent.allowEnterPip);
+ }
+
+ void createStartingSurface(@NonNull WindowContainer closeWindow,
+ ActivityRecord[] visibleOpenActivities) {
+ if (mAdaptors[0].mSwitchType == DIALOG_CLOSE) {
+ return;
+ }
+ final WindowContainer mainOpen = mAdaptors[0].mTarget;
+ final int switchType = mAdaptors[0].mSwitchType;
+ final Task openTask = switchType == TASK_SWITCH
+ ? mainOpen.asTask() : switchType == ACTIVITY_SWITCH
+ ? mainOpen.asActivityRecord().getTask() : null;
+ if (openTask == null) {
+ return;
+ }
+ final ActivityRecord mainActivity = switchType == ACTIVITY_SWITCH
+ ? mainOpen.asActivityRecord()
+ : openTask.getTopNonFinishingActivity();
+ if (mainActivity == null) {
+ return;
+ }
+ final TaskSnapshot snapshot = getSnapshot(mainOpen, visibleOpenActivities);
+ mRequestedStartingSurfaceId = openTask.mAtmService.mTaskOrganizerController
+ .addWindowlessStartingSurface(openTask, mainActivity,
+ // Choose configuration from closeWindow, because the configuration
+ // of opening target may not update before resume, so the starting
+ // surface should occlude it entirely.
+ mRemoteAnimationTarget.leash, snapshot, closeWindow.getConfiguration(),
+ new IWindowlessStartingSurfaceCallback.Stub() {
+ // Once the starting surface has been created in shell, it will call
+ // onSurfaceAdded to pass the created surface to core, so if a
+ // transition is triggered by the back gesture, there doesn't need to
+ // create another starting surface for the opening target, just reparent
+ // the starting surface to the opening target.
+ // Note if cleanUpWindowlessSurface happen prior than onSurfaceAdded
+ // called, there won't be able to reparent the starting surface on
+ // opening target. But if that happens and transition target is matched,
+ // the app window should already draw.
+ @Override
+ public void onSurfaceAdded(SurfaceControl sc) {
+ synchronized (openTask.mWmService.mGlobalLock) {
+ if (mRequestedStartingSurfaceId != INVALID_TASK_ID) {
+ mStartingSurface = sc;
+ }
+ }
+ }
+ });
+ }
+
+ // When back gesture has triggered and transition target matches navigation target,
+ // reparent the starting surface to the opening target as it's starting window.
+ void reparentWindowlessSurfaceToTarget(SurfaceControl.Transaction reparentTransaction) {
+ if (mRequestedStartingSurfaceId == INVALID_TASK_ID) {
+ return;
+ }
+ // If open target matches, reparent to open activity or task
+ if (mStartingSurface != null && mStartingSurface.isValid()) {
+ SurfaceControl.Transaction transaction = reparentTransaction != null
+ ? reparentTransaction : mAdaptors[0].mTarget.getPendingTransaction();
+ if (mAdaptors.length == 1) {
+ transaction.reparent(mStartingSurface,
+ mAdaptors[0].mTarget.getSurfaceControl());
+ } else {
+ // More than one opening window, reparent starting surface to leaf task.
+ final WindowContainer wc = mAdaptors[0].mTarget;
+ final Task task = wc.asActivityRecord() != null
+ ? wc.asActivityRecord().getTask() : wc.asTask();
+ transaction.reparent(mStartingSurface, task != null
+ ? task.getSurfaceControl()
+ : mAdaptors[0].mTarget.getSurfaceControl());
+ }
+ // remove starting surface.
+ mStartingSurface = null;
+ }
+ }
+
+ /**
+ * Ask shell to clear the starting surface.
+ * @param openTransitionMatch if true, shell will play the remove starting window
+ * animation, otherwise remove it directly.
+ */
+ void cleanUpWindowlessSurface(boolean openTransitionMatch) {
+ if (mRequestedStartingSurfaceId == INVALID_TASK_ID) {
+ return;
+ }
+ mAdaptors[0].mTarget.mWmService.mAtmService.mTaskOrganizerController
+ .removeWindowlessStartingSurface(mRequestedStartingSurfaceId,
+ !openTransitionMatch);
+ mRequestedStartingSurfaceId = INVALID_TASK_ID;
}
}
@@ -1240,11 +1331,6 @@
private RemoteAnimationTarget mAnimationTarget;
private final int mSwitchType;
- // The starting surface task Id. Used to clear the starting surface if the animation has
- // requested one during animating.
- private int mRequestedStartingSurfaceId = INVALID_TASK_ID;
- private SurfaceControl mStartingSurface;
-
BackWindowAnimationAdaptor(@NonNull WindowContainer target, boolean isOpen,
int switchType) {
mBounds.set(target.getBounds());
@@ -1276,8 +1362,6 @@
public void onAnimationCancelled(SurfaceControl animationLeash) {
if (mCapturedLeash == animationLeash) {
mCapturedLeash = null;
- mRequestedStartingSurfaceId = INVALID_TASK_ID;
- mStartingSurface = null;
}
}
@@ -1345,84 +1429,6 @@
r.checkEnterPictureInPictureAppOpsState());
return mAnimationTarget;
}
-
- void createStartingSurface(@NonNull WindowContainer closeWindow,
- @NonNull ActivityRecord[] visibleOpenActivities) {
- if (!mIsOpen) {
- return;
- }
- if (mSwitchType == DIALOG_CLOSE) {
- return;
- }
- final Task openTask = mSwitchType == TASK_SWITCH
- ? mTarget.asTask() : mSwitchType == ACTIVITY_SWITCH
- ? mTarget.asActivityRecord().getTask() : null;
- if (openTask == null) {
- return;
- }
- final ActivityRecord mainActivity = mSwitchType == ACTIVITY_SWITCH
- ? mTarget.asActivityRecord()
- : openTask.getTopNonFinishingActivity();
- if (mainActivity == null) {
- return;
- }
- final TaskSnapshot snapshot = getSnapshot(mTarget, visibleOpenActivities);
- mRequestedStartingSurfaceId = openTask.mAtmService.mTaskOrganizerController
- .addWindowlessStartingSurface(openTask, mainActivity,
- // Choose configuration from closeWindow, because the configuration
- // of opening target may not update before resume, so the starting
- // surface should occlude it entirely.
- mAnimationTarget.leash, snapshot, closeWindow.getConfiguration(),
- new IWindowlessStartingSurfaceCallback.Stub() {
- // Once the starting surface has been created in shell, it will call
- // onSurfaceAdded to pass the created surface to core, so if a
- // transition is triggered by the back gesture, there doesn't need to
- // create another starting surface for the opening target, just reparent
- // the starting surface to the opening target.
- // Note if cleanUpWindowlessSurface happen prior than onSurfaceAdded
- // called, there won't be able to reparent the starting surface on
- // opening target. But if that happens and transition target is matched,
- // the app window should already draw.
- @Override
- public void onSurfaceAdded(SurfaceControl sc) {
- synchronized (mTarget.mWmService.mGlobalLock) {
- if (mRequestedStartingSurfaceId != INVALID_TASK_ID) {
- mStartingSurface = sc;
- }
- }
- }
- });
- }
-
- // When back gesture has triggered and transition target matches navigation target,
- // reparent the starting surface to the opening target as it's starting window.
- void reparentWindowlessSurfaceToTarget() {
- if (mRequestedStartingSurfaceId == INVALID_TASK_ID) {
- return;
- }
- // If open target matches, reparent to open activity or task
- if (mStartingSurface != null && mStartingSurface.isValid()) {
- mTarget.getPendingTransaction()
- .reparent(mStartingSurface, mTarget.getSurfaceControl());
- // remove starting surface.
- mStartingSurface = null;
- }
- }
-
- /**
- * Ask shell to clear the starting surface.
- * @param openTransitionMatch if true, shell will play the remove starting window
- * animation, otherwise remove it directly.
- */
- void cleanUpWindowlessSurface(boolean openTransitionMatch) {
- if (mRequestedStartingSurfaceId == INVALID_TASK_ID) {
- return;
- }
- mTarget.mWmService.mAtmService.mTaskOrganizerController
- .removeWindowlessStartingSurface(mRequestedStartingSurfaceId,
- !openTransitionMatch);
- mRequestedStartingSurfaceId = INVALID_TASK_ID;
- }
}
ScheduleAnimationBuilder prepareAnimation(
@@ -1499,18 +1505,10 @@
* @param visibleOpenActivities The visible activities in opening targets.
*/
private void applyPreviewStrategy(@NonNull WindowContainer closeWindow,
- @NonNull BackWindowAnimationAdaptor[] openAnimationAdaptor,
+ @NonNull BackWindowAnimationAdaptorWrapper openAnimationAdaptor,
@NonNull ActivityRecord[] visibleOpenActivities) {
- if (isSupportWindowlessSurface() && mShowWindowlessSurface && !mIsLaunchBehind
- // TODO (b/274997067) Draw two snapshot in a single starting surface.
- // We are using TaskId as the key of
- // StartingSurfaceDrawer#StartingWindowRecordManager, so we cannot create
- // two activity snapshot with WindowlessStartingWindow.
- // Try to draw two snapshot within a WindowlessStartingWindow, or find
- // another key for StartingWindowRecordManager.
- && openAnimationAdaptor.length == 1) {
- openAnimationAdaptor[0].createStartingSurface(closeWindow,
- visibleOpenActivities);
+ if (isSupportWindowlessSurface() && mShowWindowlessSurface && !mIsLaunchBehind) {
+ openAnimationAdaptor.createStartingSurface(closeWindow, visibleOpenActivities);
} else {
for (int i = visibleOpenActivities.length - 1; i >= 0; --i) {
setLaunchBehind(visibleOpenActivities[i]);
@@ -1541,7 +1539,7 @@
}
mCloseTarget.mTransitionController.mSnapshotController
.mActivitySnapshotController.clearOnBackPressedActivities();
- applyPreviewStrategy(mCloseTarget, mOpenAnimAdaptor.mAdaptors, openingActivities);
+ applyPreviewStrategy(mCloseTarget, mOpenAnimAdaptor, openingActivities);
final IBackAnimationFinishedCallback callback = makeAnimationFinishedCallback();
final RemoteAnimationTarget[] targets = getAnimationTargets();
@@ -1565,7 +1563,6 @@
// animation was canceled
return;
}
- mOpenAnimAdaptor.onAnimationFinish();
if (!triggerBack) {
clearBackAnimateTarget();
} else {
