Quick Settings: Fix flip-to-settings animation

Bug is reproduced as follows:

1. close the notification area while Quick Settings is showing
2. open the notification area, so that the notifications show
3. click the button on the top, to switch to quick settings.

Notice that only half of the animation is played. Having some
notifications shown helps visualizing it.

This bug was introduced by

I3cab45f72fe3c5fa40d4631fc6a84ea7bfe51bd1
http://review.cyanogenmod.org/29118
(Yes, it was me. Sorry.)

Change-Id: I31510617bf7e78fa09305a9c323b6ce30c058218

Author: ThiagoVinicius

packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java

@@ -1592,6 +1592,11 @@ public void flipToNotifications() {
         final boolean halfWayDone = mScrollView.getVisibility() == View.VISIBLE;
         final int zeroOutDelays = halfWayDone ? 0 : 1;
 
+        if (!halfWayDone) {
+            mScrollView.setScaleX(0f);
+            mFlipSettingsView.setScaleX(1f);
+        }
+
         // Only show the Power widget if it should be shown
         mPowerWidget.updateVisibility();
 
@@ -1714,6 +1719,11 @@ public void flipToSettings() {
         final boolean halfWayDone = mFlipSettingsView.getVisibility() == View.VISIBLE;
         final int zeroOutDelays = halfWayDone ? 0 : 1;
 
+        if (!halfWayDone) {
+            mFlipSettingsView.setScaleX(0f);
+            mScrollView.setScaleX(1f);
+        }
+
         mFlipSettingsView.setVisibility(View.VISIBLE);
         mFlipSettingsViewAnim = start(
             startDelay(FLIP_DURATION_OUT * zeroOutDelays,