Fixes for FlashlightTile lifecycle

Change-Id: I690440465ef5312d77a279e73eaa22ccbdfbcd53
Fixes: 33861261
Test: runtest systemui

2 files changed, 7 insertions, 2 deletions

diff --git a/packages/SystemUI/src/com/android/systemui/qs/tiles/FlashlightTile.java b/packages/SystemUI/src/com/android/systemui/qs/tiles/FlashlightTile.java
index d86aebfd0255..416c7cef8e5d 100644
--- a/packages/SystemUI/src/com/android/systemui/qs/tiles/FlashlightTile.java
+++ b/packages/SystemUI/src/com/android/systemui/qs/tiles/FlashlightTile.java
@@ -47,13 +47,11 @@ public class FlashlightTile extends QSTile<QSTile.BooleanState> implements
     public FlashlightTile(Host host) {
         super(host);
         mFlashlightController = host.getFlashlightController();
-        mFlashlightController.addCallback(this);
     }
 
     @Override
     protected void handleDestroy() {
         super.handleDestroy();
-        mFlashlightController.removeCallback(this);
     }
 
     @Override
@@ -63,6 +61,11 @@ public class FlashlightTile extends QSTile<QSTile.BooleanState> implements
 
     @Override
     public void setListening(boolean listening) {
+        if (listening) {
+            mFlashlightController.addCallback(this);
+        } else {
+            mFlashlightController.removeCallback(this);
+        }
     }
 
     @Override
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/policy/FlashlightControllerImpl.java b/packages/SystemUI/src/com/android/systemui/statusbar/policy/FlashlightControllerImpl.java
index 008d837da51c..f0cfa2c40931 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/policy/FlashlightControllerImpl.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/policy/FlashlightControllerImpl.java
@@ -121,6 +121,8 @@ public class FlashlightControllerImpl implements FlashlightController {
             }
             cleanUpListenersLocked(l);
             mListeners.add(new WeakReference<>(l));
+            l.onFlashlightAvailabilityChanged(mTorchAvailable);
+            l.onFlashlightChanged(mFlashlightEnabled);
         }
     }