Fix bug where hotseat disappears

Fix: 336096469
Bug: 339700174
Flag: NONE
Test: n/a
Change-Id: Ie567c08445d7743281f501c782a8fd51a75ad9bc
(cherry picked from commit cf10603ed3)

quickstep/src/com/android/launcher3/hybridhotseat/HotseatPredictionController.java

@@ -29,6 +29,7 @@ import android.animation.Animator;
 import android.animation.AnimatorSet;
 import android.animation.ObjectAnimator;
 import android.content.ComponentName;
+import android.util.Log;
 import android.view.HapticFeedbackConstants;
 import android.view.View;
 import android.view.ViewGroup;
@@ -80,6 +81,7 @@ public class HotseatPredictionController implements DragController.DragListener,
         SystemShortcut.Factory<QuickstepLauncher>, DeviceProfile.OnDeviceProfileChangeListener,
         DragSource, ViewGroup.OnHierarchyChangeListener {
 
+    private static final String TAG = "HotseatPredictionController";
     private static final int FLAG_UPDATE_PAUSED = 1 << 0;
     private static final int FLAG_DRAG_IN_PROGRESS = 1 << 1;
     private static final int FLAG_FILL_IN_PROGRESS = 1 << 2;
@@ -291,6 +293,16 @@ public class HotseatPredictionController implements DragController.DragListener,
         }
     }
 
+    /**
+     * Ensures that if the flag FLAG_UPDATE_PAUSED is active we set it to false.
+     */
+    public void verifyUIUpdateNotPaused() {
+        if ((mPauseFlags & FLAG_UPDATE_PAUSED) != 0) {
+            setPauseUIUpdate(false);
+            Log.e(TAG, "FLAG_UPDATE_PAUSED should not be set to true (see b/339700174)");
+        }
+    }
+
     /**
      * Sets or updates the predicted items
      */

quickstep/src/com/android/launcher3/uioverrides/QuickstepLauncher.java

@@ -389,6 +389,12 @@ public class QuickstepLauncher extends Launcher {
         return result;
     }
 
+    @Override
+    public void startBinding() {
+        super.startBinding();
+        mHotseatPredictionController.verifyUIUpdateNotPaused();
+    }
+
     @Override
     protected void onActivityFlagsChanged(int changeBits) {
         if ((changeBits & ACTIVITY_STATE_STARTED) != 0) {