Disabling alpha layer on some views

Change-Id: Ide1d5951ea80080f8fea8f32a76487b646b4f958

src/com/android/launcher3/allapps/AllAppsRecyclerView.java

@@ -415,4 +415,8 @@ public class AllAppsRecyclerView extends BaseRecyclerView implements LogContaine
                 y + mEmptySearchBackground.getIntrinsicHeight());
     }
 
+    @Override
+    public boolean hasOverlappingRendering() {
+        return false;
+    }
 }