Frameworks/SystemUI: Hide expanded dialog when screen is off

Hide the expanded dialog while screen is off. Otherwise it
causes continuous buffer updates to SurfaceTexture
even when SCREEN is turned off and while In-Call causing a
spike in power consumtion. This fix ensures that the
power consumption is kept to a minimum in such a scenario.

(cherry picked from commit 406e56a8da1e76ef2abb20555470cf8b83dade5f)

Change-Id: Id4bc02b71d3d6a4a048ac511b69c19b4cd454b1e
CRs-Fixed: 339815

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

@@ -442,6 +442,7 @@ public boolean onLongClick(View v) {
         IntentFilter filter = new IntentFilter();
         filter.addAction(Intent.ACTION_CONFIGURATION_CHANGED);
         filter.addAction(Intent.ACTION_CLOSE_SYSTEM_DIALOGS);
+        filter.addAction(Intent.ACTION_SCREEN_ON);
         filter.addAction(Intent.ACTION_SCREEN_OFF);
         context.registerReceiver(mBroadcastReceiver, filter);
 
@@ -2323,10 +2324,20 @@ public void onReceive(Context context, Intent intent) {
                     }
                 }
                 animateCollapse(excludeRecents);
+                if(Intent.ACTION_SCREEN_OFF.equals(action)) {
+                    // Explicitly hide the expanded dialog. Otherwise it
+                    // causes continuous buffer updates to SurfaceTexture
+                    // even when SCREEN is turned off (while In-Call).
+                    // This keeps the power consumption to a minimum
+                    // in such a scenario.
+                    mExpandedDialog.hide();
+                }
             }
             else if (Intent.ACTION_CONFIGURATION_CHANGED.equals(action)) {
                 repositionNavigationBar();
                 updateResources();
+            } else if (Intent.ACTION_SCREEN_ON.equals(action)) {
+                mExpandedDialog.show();
             }
         }
     };