Filter input events and smooth out touch scrolling. Bug 2639807

Change-Id: I71a18497862a30db5ff0f52f566fb86eae213ea3
diff --git a/src/com/android/launcher2/CellLayout.java b/src/com/android/launcher2/CellLayout.java
index 9d39c2c..bc52af1 100644
--- a/src/com/android/launcher2/CellLayout.java
+++ b/src/com/android/launcher2/CellLayout.java
@@ -584,7 +584,7 @@
             final View view = getChildAt(i);
             view.setDrawingCacheEnabled(enabled);
             // Update the drawing caches
-            view.buildDrawingCache(true);
+            view.buildDrawingCache(false);
         }
     }