Question

我遇到了一个问题，当两个设备连接到同一个投射会话并且从设备1调用BaseCastManager.setDeviceMute()时，设备2没有收到MediaCallback.onRouteVolumeChanged()

这样做的正确方法是什么？可能有不同的回调吗？

这是最终被调用的内容。

/**
 * 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);
    }
}

这是我的听众：

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());
        }


    }

Answer 1

您需要收听onVolumeChanged的回调Cast.Listener：

public void onVolumeChanged（）

当设备的音量或静音状态发生变化时调用。

Answer 2

由于您使用的是Cast Companion Library，您可以通过扩展[2016-05-05 20:47:03] event.DEBUG: Notified event "console.command" to listener "Symfony\Component\HttpKernel\EventListener\DebugHandlersListener::configure". [] [] [2016-05-05 20:47:03] event.DEBUG: Notified event "console.command" to listener "Symfony\Bridge\Monolog\Handler\ConsoleHandler::onCommand". [] [] [2016-05-05 20:47:03] event.DEBUG: Notified event "console.command" to listener "Symfony\Bridge\Monolog\Handler\ConsoleHandler::onCommand". [] [] [2016-05-05 20:47:03] php.DEBUG: fsockopen(): unable to connect to 127.0.0.1:8000 (Connection refused) {"type":2,"file":"/home/me/projects/myproject/vendor/symfony/symfony/src/Symfony/Bundle/FrameworkBundle/Command/ServerCommand.php","line":59,"level":28928} [] [2016-05-05 20:47:03] event.DEBUG: Notified event "console.terminate" to listener "Symfony\Bundle\SwiftmailerBundle\EventListener\EmailSenderListener::onTerminate". [] [] [2016-05-05 20:47:03] event.DEBUG: Notified event "console.terminate" to listener "Symfony\Bridge\Monolog\Handler\ConsoleHandler::onTerminate". [] [] [2016-05-05 20:47:03] event.DEBUG: Notified event "console.terminate" to listener "Symfony\Bridge\Monolog\Handler\ConsoleHandler::onTerminate". [] []来使用回调VideoCastConsumer#onVolumeChanged(double value, boolean isMute)，覆盖该方法并将其注册到VideoCastConsumerImpl（并在不再需要时取消注册））：

VideoCastManager

从Chromecast接收器获取静音事件的正确回调是什么？

2 个答案: