8.0 Launcher3 背景透明

--- a/alps/packages/apps/Launcher3/src/com/android/launcher3/allapps/AllAppsTransitionController.java
+++ b/alps/packages/apps/Launcher3/src/com/android/launcher3/allapps/AllAppsTransitionController.java
@@ -100,7 +100,8 @@ public class AllAppsTransitionController implements TouchController, VerticalPul
         mProgress = 1f;
 
         mEvaluator = new ArgbEvaluator();
-        mAllAppsBackgroundColor = Themes.getAttrColor(l, android.R.attr.colorPrimary);
+        //mAllAppsBackgroundColor = Themes.getAttrColor(l, android.R.attr.colorPrimary);
+        mAllAppsBackgroundColor = 0;  //wangds
     }