在Android电视上检测静音|取消静音

AudioManager audioManager = (AudioManager) getSystemService(Context.AUDIO_SERVICE);
boolean isMuted = audioManager.isStreamMute(AudioManager.STREAM_MUSIC);
if (isMuted) {
    // 静音
} else {
    // 非静音
}

private BroadcastReceiver volumeReceiver = new BroadcastReceiver() {
    @Override
    public void onReceive(Context context, Intent intent) {
        if (intent.getAction().equals("android.media.VOLUME_CHANGED_ACTION")) {
            AudioManager audioManager = (AudioManager) getSystemService(Context.AUDIO_SERVICE);
            int currentVolume = audioManager.getStreamVolume(AudioManager.STREAM_MUSIC);
            if (currentVolume == 0) {
                // 静音
            } else {
                // 非静音
            }
        }
    }
};

// 注册BroadcastReceiver
IntentFilter intentFilter = new IntentFilter();
intentFilter.addAction("android.media.VOLUME_CHANGED_ACTION");
registerReceiver(volumeReceiver, intentFilter);