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Commit 94562ef1 authored by wilsonshih's avatar wilsonshih
Browse files

Preventing start back navigation before new activity window created. 

If the new window has not yet been added to the launching activity,
skip prepare the pending animation, as the final state after the
transition finish is unpredictable.

Flag: EXEMPT bugfix
Bug: 391999788
Test: presubmit
Change-Id: I36cb1b69a5a3f4a2d438f962bb7792cc7155baa9
parent a513c260

services/core/java/com/android/server/wm/BackNavigationController.java

+3 −1
Original line number Diff line number Diff line
@@ -190,7 +190,9 @@ class BackNavigationController { 
            currentActivity = window.mActivityRecord;

            currentTask = window.getTask();

            if ((currentTask != null && !currentTask.isVisibleRequested())

                    || (currentActivity != null && !currentActivity.isVisibleRequested())) {

                    || (currentActivity != null && !currentActivity.isVisibleRequested())

                    || (currentActivity != null && currentTask != null

                            && currentTask.getTopNonFinishingActivity() != currentActivity)) {

                // Closing transition is happening on focus window and should be update soon,

                // don't drive back navigation with it.

                ProtoLog.d(WM_DEBUG_BACK_PREVIEW, "Focus window is closing.");