SystemUI: improve battery saver tile

- Fix the tile not showing, the javadoc states that it will return 0 if
  profiles are not supported, but it was actually returning -1.

- Now disables itself when the device is plugged in to reflect to the user
  that they cannot toggle it on right now.

- Don't wait for power manager to update its internal state before
  updating the visual tile state.

Change-Id: I8ab6adb2bfa728a242368294c1f066d468a86f09
Signed-off-by: Roman Birg <roman@cyngn.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/packages/SystemUI/src/com/android/systemui/qs/QSTile.java b/packages/SystemUI/src/com/android/systemui/qs/QSTile.java
index 2d62724..01a170f 100644
--- a/packages/SystemUI/src/com/android/systemui/qs/QSTile.java
+++ b/packages/SystemUI/src/com/android/systemui/qs/QSTile.java
@@ -34,6 +34,7 @@ import android.view.ViewGroup;
 
 import android.widget.RemoteViews;
 import com.android.systemui.qs.QSTile.State;
+import com.android.systemui.statusbar.policy.BatteryController;
 import com.android.systemui.statusbar.policy.BluetoothController;
 import com.android.systemui.statusbar.policy.CastController;
 import com.android.systemui.statusbar.policy.FlashlightController;
@@ -344,6 +345,7 @@ public abstract class QSTile<TState extends State> implements Listenable {
         CastController getCastController();
         FlashlightController getFlashlightController();
         KeyguardMonitor getKeyguardMonitor();
+        BatteryController getBatteryController();
         boolean isEditing();
         void setEditing(boolean editing);
         void resetTiles();