diff --git a/services/core/java/com/android/server/wm/AppWindowAnimator.java b/services/core/java/com/android/server/wm/AppWindowAnimator.java
index 16edd35137fbe..65e3ec015bc6d 100644
--- a/services/core/java/com/android/server/wm/AppWindowAnimator.java
+++ b/services/core/java/com/android/server/wm/AppWindowAnimator.java
@@ -411,7 +411,9 @@ public class AppWindowAnimator {
         }
 
         if (DEBUG_ANIM) Slog.v(TAG, "Animation done in " + mAppToken
-                + ": reportedVisible=" + mAppToken.reportedVisible);
+                + ": reportedVisible=" + mAppToken.reportedVisible
+                + " okToDisplay=" + mService.okToDisplay()
+                + " startingDisplayed=" + mAppToken.startingDisplayed);
 
         transformation.clear();
 
diff --git a/services/core/java/com/android/server/wm/DisplayContent.java b/services/core/java/com/android/server/wm/DisplayContent.java
index 257f2856213e2..bbf7d9ff8a52d 100644
--- a/services/core/java/com/android/server/wm/DisplayContent.java
+++ b/services/core/java/com/android/server/wm/DisplayContent.java
@@ -520,9 +520,16 @@ class DisplayContent extends WindowContainer<DisplayContent.DisplayChildWindowCo
                 }
                 w.mLayoutNeeded = false;
                 w.prelayout();
+                final boolean firstLayout = !w.isLaidOut();
                 mService.mPolicy.layoutWindowLw(w, null);
                 w.mLayoutSeq = mService.mLayoutSeq;
 
+                // If this is the first layout, we need to initialize the last inset values as
+                // otherwise we'd immediately cause an unnecessary resize.
+                if (firstLayout) {
+                    w.updateLastInsetValues();
+                }
+
                 // Window frames may have changed. Update dim layer with the new bounds.
                 final Task task = w.getTask();
                 if (task != null) {
diff --git a/services/core/java/com/android/server/wm/TaskSnapshotSurface.java b/services/core/java/com/android/server/wm/TaskSnapshotSurface.java
index 2b9e800fd8545..5e7b9100af4ee 100644
--- a/services/core/java/com/android/server/wm/TaskSnapshotSurface.java
+++ b/services/core/java/com/android/server/wm/TaskSnapshotSurface.java
@@ -116,7 +116,6 @@ class TaskSnapshotSurface implements StartingSurface {
     private final TaskSnapshot mSnapshot;
     private final CharSequence mTitle;
     private boolean mHasDrawn;
-    private boolean mReportNextDraw;
     private long mShownTime;
     private final Handler mHandler;
     private boolean mSizeMismatch;
@@ -263,15 +262,11 @@ class TaskSnapshotSurface implements StartingSurface {
         } else {
             drawSizeMatchSnapshot(buffer);
         }
-        final boolean reportNextDraw;
         synchronized (mService.mWindowMap) {
             mShownTime = SystemClock.uptimeMillis();
             mHasDrawn = true;
-            reportNextDraw = mReportNextDraw;
-        }
-        if (reportNextDraw) {
-            reportDrawn();
         }
+        reportDrawn();
     }
 
     private void drawSizeMatchSnapshot(GraphicBuffer buffer) {
@@ -356,9 +351,6 @@ class TaskSnapshotSurface implements StartingSurface {
     }
 
     private void reportDrawn() {
-        synchronized (mService.mWindowMap) {
-            mReportNextDraw = false;
-        }
         try {
             mSession.finishDrawing(mWindow);
         } catch (RemoteException e) {
@@ -376,9 +368,6 @@ class TaskSnapshotSurface implements StartingSurface {
                     final TaskSnapshotSurface surface = (TaskSnapshotSurface) msg.obj;
                     synchronized (surface.mService.mWindowMap) {
                         hasDrawn = surface.mHasDrawn;
-                        if (!hasDrawn) {
-                            surface.mReportNextDraw = true;
-                        }
                     }
                     if (hasDrawn) {
                         surface.reportDrawn();
diff --git a/services/core/java/com/android/server/wm/WindowAnimator.java b/services/core/java/com/android/server/wm/WindowAnimator.java
index d64dc0e57e2a1..d85dd0c4cb2d7 100644
--- a/services/core/java/com/android/server/wm/WindowAnimator.java
+++ b/services/core/java/com/android/server/wm/WindowAnimator.java
@@ -52,6 +52,7 @@ public class WindowAnimator {
 
     /** Is any window animating? */
     private boolean mAnimating;
+    private boolean mLastAnimating;
 
     /** Is any app window animating? */
     boolean mAppWindowAnimating;
@@ -158,7 +159,6 @@ public class WindowAnimator {
      */
     private void animate(long frameTimeNs) {
         boolean transactionOpen = false;
-        boolean wasAnimating = false;
         try {
             synchronized (mService.mWindowMap) {
                 if (!mInitialized) {
@@ -167,8 +167,7 @@ public class WindowAnimator {
 
                 mCurrentTime = frameTimeNs / TimeUtils.NANOS_PER_MS;
                 mBulkUpdateParams = SET_ORIENTATION_CHANGE_COMPLETE;
-                wasAnimating = mAnimating;
-                setAnimating(false);
+                mAnimating = false;
                 mAppWindowAnimating = false;
                 if (DEBUG_WINDOW_TRACE) {
                     Slog.i(TAG, "!!! animate: entry time=" + mCurrentTime);
@@ -269,25 +268,22 @@ public class WindowAnimator {
                 mWindowPlacerLocked.requestTraversal();
             }
 
-            if (mAnimating && !wasAnimating) {
+            if (mAnimating && !mLastAnimating) {
 
                 // Usually app transitions but quite a load onto the system already (with all the
                 // things happening in app), so pause task snapshot persisting to not increase the
                 // load.
                 mService.mTaskSnapshotController.setPersisterPaused(true);
-                if (Trace.isTagEnabled(Trace.TRACE_TAG_WINDOW_MANAGER)) {
-                    Trace.asyncTraceBegin(Trace.TRACE_TAG_WINDOW_MANAGER, "animating", 0);
-                }
+                Trace.asyncTraceBegin(Trace.TRACE_TAG_WINDOW_MANAGER, "animating", 0);
             }
-
-            if (!mAnimating && wasAnimating) {
+            if (!mAnimating && mLastAnimating) {
                 mWindowPlacerLocked.requestTraversal();
                 mService.mTaskSnapshotController.setPersisterPaused(false);
-                if (Trace.isTagEnabled(Trace.TRACE_TAG_WINDOW_MANAGER)) {
-                    Trace.asyncTraceEnd(Trace.TRACE_TAG_WINDOW_MANAGER, "animating", 0);
-                }
+                Trace.asyncTraceEnd(Trace.TRACE_TAG_WINDOW_MANAGER, "animating", 0);
             }
 
+            mLastAnimating = mAnimating;
+
             if (mRemoveReplacedWindows) {
                 mService.mRoot.removeReplacedWindows();
                 mRemoveReplacedWindows = false;
diff --git a/services/core/java/com/android/server/wm/WindowState.java b/services/core/java/com/android/server/wm/WindowState.java
index 8c8f633094253..344c61660e003 100644
--- a/services/core/java/com/android/server/wm/WindowState.java
+++ b/services/core/java/com/android/server/wm/WindowState.java
@@ -208,7 +208,7 @@ class WindowState extends WindowContainer<WindowState> implements WindowManagerP
     boolean mHidden;    // Used to determine if to show child windows.
     boolean mWallpaperVisible;  // for wallpaper, what was last vis report?
     private boolean mDragResizing;
-    private boolean mDragResizingChangeReported;
+    private boolean mDragResizingChangeReported = true;
     private int mResizeMode;
 
     private RemoteCallbackList<IWindowFocusObserver> mFocusCallbacks;
@@ -1155,11 +1155,7 @@ class WindowState extends WindowContainer<WindowState> implements WindowManagerP
                 return;
             }
 
-            mLastOverscanInsets.set(mOverscanInsets);
-            mLastContentInsets.set(mContentInsets);
-            mLastVisibleInsets.set(mVisibleInsets);
-            mLastStableInsets.set(mStableInsets);
-            mLastOutsets.set(mOutsets);
+            updateLastInsetValues();
             mService.makeWindowFreezingScreenIfNeededLocked(this);
 
             // If the orientation is changing, or we're starting or ending a drag resizing action,
@@ -4404,6 +4400,24 @@ class WindowState extends WindowContainer<WindowState> implements WindowManagerP
         return result;
     }
 
+    /**
+     * @return True if this window has been laid out at least once; false otherwise.
+     */
+    boolean isLaidOut() {
+        return mLayoutSeq != -1;
+    }
+
+    /**
+     * Updates the last inset values to the current ones.
+     */
+    void updateLastInsetValues() {
+        mLastOverscanInsets.set(mOverscanInsets);
+        mLastContentInsets.set(mContentInsets);
+        mLastVisibleInsets.set(mVisibleInsets);
+        mLastStableInsets.set(mStableInsets);
+        mLastOutsets.set(mOutsets);
+    }
+
     // TODO: Hack to work around the number of states AppWindowToken needs to access without having
     // access to its windows children. Need to investigate re-writing
     // {@link AppWindowToken#updateReportedVisibilityLocked} so this can be removed.