Fix Launcher icons not animated during unfold

If icons are re-bound during the animation, they were not moved. I was able to reproduce this case 100% of times by folding, restarting launcher and unfolding. From a perfetto trace it seems that in this case `finishBindingItems` was called after the animation already started, therefore not registering any view.

With this cl, items are animated also after they are rebound.

Bug: 197834977
Test: folded -> restarted launcher -> unfolded -> verified icons are now moving towards the center
Change-Id: I5b001c502860c17d6ea5d54d099f04b2ddf1820a

quickstep/src/com/android/launcher3/BaseQuickstepLauncher.java

@@ -65,6 +65,7 @@ import com.android.launcher3.util.ActivityOptionsWrapper;
 import com.android.launcher3.util.DisplayController;
 import com.android.launcher3.util.IntSet;
 import com.android.launcher3.util.ObjectWrapper;
+import com.android.launcher3.util.RunnableList;
 import com.android.launcher3.util.SplitConfigurationOptions.SplitPositionOption;
 import com.android.launcher3.util.UiThreadHelper;
 import com.android.quickstep.OverviewCommandHelper;
@@ -496,6 +497,20 @@ public abstract class BaseQuickstepLauncher extends Launcher
         WellbeingModel.INSTANCE.get(this);
     }
 
+    @Override
+    public void onInitialBindComplete(IntSet boundPages, RunnableList pendingTasks) {
+        pendingTasks.add(() -> {
+            // This is added in pending task as we need to wait for views to be positioned
+            // correctly before registering them for the animation.
+            if (mLauncherUnfoldAnimationController != null) {
+                // This is needed in case items are rebound while the unfold animation is in
+                // progress.
+                mLauncherUnfoldAnimationController.updateRegisteredViewsIfNeeded();
+            }
+        });
+        super.onInitialBindComplete(boundPages, pendingTasks);
+    }
+
     @Override
     public Stream<SystemShortcut.Factory> getSupportedShortcuts() {
         Stream<SystemShortcut.Factory> base = Stream.of(WellbeingModel.SHORTCUT_FACTORY);