Fixing crash when emptyView gets added twice

Bug: 152129003
Change-Id: Id86279ace164453d0126773af89e3c9309d40202
diff --git a/quickstep/recents_ui_overrides/src/com/android/quickstep/views/RecentsView.java b/quickstep/recents_ui_overrides/src/com/android/quickstep/views/RecentsView.java
index a18f7ba..4fd836d 100644
--- a/quickstep/recents_ui_overrides/src/com/android/quickstep/views/RecentsView.java
+++ b/quickstep/recents_ui_overrides/src/com/android/quickstep/views/RecentsView.java
@@ -1057,7 +1057,7 @@
      */
     public void showCurrentTask(int runningTaskId) {
         if (getTaskView(runningTaskId) == null) {
-            boolean wasEmpty = getTaskViewCount() == 0;
+            boolean wasEmpty = getChildCount() == 0;
             // Add an empty view for now until the task plan is loaded and applied
             final TaskView taskView = mTaskViewPool.getView();
             addView(taskView, mTaskViewStartIndex);