Fixing alpha issue on AllApps.

Change-Id: Ifbd81b3e8009cff963bb03bd953e498f8677cc38
diff --git a/src/com/android/launcher2/BubbleTextView.java b/src/com/android/launcher2/BubbleTextView.java
index 4a56e1b..076f574 100644
--- a/src/com/android/launcher2/BubbleTextView.java
+++ b/src/com/android/launcher2/BubbleTextView.java
@@ -144,4 +144,10 @@
         super.onDetachedFromWindow();
         mBackground.setCallback(null);
     }
+
+    @Override
+    protected boolean onSetAlpha(int alpha) {
+        mPaint.setAlpha(alpha);
+        return super.onSetAlpha(alpha);
+    }
 }