Merge "Not support group volume control" into sc-dev

src/com/android/settings/media/MediaDeviceUpdateWorker.java

@@ -259,6 +259,10 @@ public class MediaDeviceUpdateWorker extends SliceBackgroundWorker
         return mLocalMediaManager.shouldDisableMediaOutput(packageName);
     }
 
+    boolean shouldEnableVolumeSeekBar(RoutingSessionInfo sessionInfo) {
+        return mLocalMediaManager.shouldEnableVolumeSeekBar(sessionInfo);
+    }
+
     private class DevicesChangedBroadcastReceiver extends BroadcastReceiver {
         @Override
         public void onReceive(Context context, Intent intent) {

src/com/android/settings/media/RemoteMediaSlice.java

@@ -126,6 +126,12 @@ public class RemoteMediaSlice implements CustomSliceable {
                         + maxVolume);
                 continue;
             }
+            if (!getWorker().shouldEnableVolumeSeekBar(info)) {
+                // There is no disable state. We hide it directly.
+                Log.d(TAG, "Unable to add Slice. " + info.getName() + ": This is a group session");
+                continue;
+            }
+
             final CharSequence appName = Utils.getApplicationLabel(
                     mContext, info.getClientPackageName());
             final CharSequence outputTitle = mContext.getString(R.string.media_output_label_title,

src/com/android/settings/notification/RemoteVolumeGroupController.java

@@ -129,6 +129,7 @@ public class RemoteVolumeGroupController extends BasePreferenceController implem
                 seekBarPreference.setMin(0);
                 seekBarPreference.setOnPreferenceChangeListener(this);
                 seekBarPreference.setIcon(R.drawable.ic_volume_remote);
+                seekBarPreference.setEnabled(mLocalMediaManager.shouldEnableVolumeSeekBar(info));
                 mPreferenceCategory.addPreference(seekBarPreference);
             }