Merge "Run app switch display change from on display thread" into main
diff --git a/services/core/java/com/android/server/wm/DisplayContent.java b/services/core/java/com/android/server/wm/DisplayContent.java
index 87c5b7b..00d42e0 100644
--- a/services/core/java/com/android/server/wm/DisplayContent.java
+++ b/services/core/java/com/android/server/wm/DisplayContent.java
@@ -2003,7 +2003,12 @@
         }
         // Update directly because the app which will change the orientation of display is ready.
         if (mDisplayRotation.updateOrientation(getOrientation(), false /* forceUpdate */)) {
-            sendNewConfiguration();
+            // Run rotation change on display thread. See Transition#shouldApplyOnDisplayThread().
+            mWmService.mH.post(() -> {
+                synchronized (mWmService.mGlobalLock) {
+                    sendNewConfiguration();
+                }
+            });
             return;
         }
         if (mRemoteDisplayChangeController.isWaitingForRemoteDisplayChange()) {
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 2c88ed2..7356b43 100644
--- a/services/tests/wmtests/src/com/android/server/wm/DisplayContentTests.java
+++ b/services/tests/wmtests/src/com/android/server/wm/DisplayContentTests.java
@@ -1717,6 +1717,7 @@
         // The display should be rotated after the launch is finished.
         doReturn(false).when(app).isAnimating(anyInt(), anyInt());
         mDisplayContent.mAppTransition.notifyAppTransitionFinishedLocked(app.token);
+        waitHandlerIdle(mWm.mH);
         mStatusBarWindow.finishSeamlessRotation(t);
         mNavBarWindow.finishSeamlessRotation(t);