What is the correct callback to get mute events from the Chromecast Receiver?

Question

I'm running into an issue where, when two devices are connected to the same cast session and when BaseCastManager.setDeviceMute() is called from device 1, device 2 does not receive a MediaCallback.onRouteVolumeChanged()

What's the proper way to do this? Is there perhaps a different callback?

Here's what eventually gets called.

/**
 * Mutes or un-mutes the device volume.
 *
 * @throws CastException
 * @throws NoConnectionException
 * @throws TransientNetworkDisconnectionException
 */
public final void setDeviceMute(boolean mute) throws CastException,
        TransientNetworkDisconnectionException, NoConnectionException {
    checkConnectivity();
    try {
        Cast.CastApi.setMute(mApiClient, mute);
    } catch (IOException e) {
        throw new CastException("setDeviceMute", e);
    } catch (IllegalStateException e) {
        throw new NoConnectionException("setDeviceMute()", e);
    }
}

Here's my listener:

private class MediaCallBack extends android.support.v7.media.MediaRouter.Callback {
        @Override
        public void onRouteVolumeChanged(MediaRouter router,
                                         RouteInfo route) {
            super.onRouteVolumeChanged(router, route);
            onVolumeChanged(route.getVolume());
        }


    }

Please remove your other post, seems to be identical to this one — Ali Naddaf, May 05 '16 at 16:09

score 2 · Answer 1 · answered May 05 '16 at 14:04

2

You need to listen to the callback onVolumeChanged of Cast.Listener:

public void onVolumeChanged ()

Called when the device's volume or mute state has changed.

answered May 05 '16 at 14:04

Mattia Maestrini

32,270
15
87
94

score 1 · Accepted Answer · answered May 05 '16 at 16:08

1

Since you are using Cast Companion Library, you can use the callback VideoCastConsumer#onVolumeChanged(double value, boolean isMute) by extending VideoCastConsumerImpl, overriding that method and registering it with the VideoCastManager(and unregister it when not needed anymore):

VideoCastConsumer myConsumer = new VideoCastConsumerImpl() {
   void onVolumeChanged(double value, boolean isMute) {
       // do as you wish here
   }
}

VideoCastManager.getInstance().addVideoCastConsumer(myConsumer);

answered May 05 '16 at 16:08

Ali Naddaf

16,951
2
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this is what I'm currently doing but onVolumeChanged does not get triggered when we mute the receiver. – Nelson Ramirez May 09 '16 at 16:55
From what you have posted, you are not doing that; you are listening on MediaRouter.Callback and not Cast.Listener (or using CCL, which amounts to the same thing). One more thng: if you are using CCL, don't try to register to Cast events directly, use CCL's callbacks and APIs – Ali Naddaf May 09 '16 at 17:27

What is the correct callback to get mute events from the Chromecast Receiver?

2 Answers2