安卓通知生成器 : How to setSound so that sound plays in a looper

Question

我正在执行如下通知。默认警报声音播放正常，但只有一次。我想要的只是重复播放直到注册水龙头。

 NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(this)
                    .setSmallIcon(R.drawable.ic_launcher)
                    .setContentTitle("I Am Fine")
                    .setStyle(new NotificationCompat.BigTextStyle()
                    .bigText(NOTIFICATION_MESSAGE))     
                    .setContentText(NOTIFICATION_MESSAGE)
                    .setAutoCancel(true)
                    .setDefaults(Notification.DEFAULT_LIGHTS | Notification.DEFAULT_VIBRATE);

            Uri alarmSound = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_ALARM);
            mBuilder.setSound(alarmSound,AudioManager.STREAM_MUSIC);

setSound 的第二个参数没有显示任何效果。请帮忙!

Answer 1

您必须为通知使用 FLAG_INSISTENT。来自documentation :-

public static final int FLAG_INSISTENT

Bit to be bitwise-ored into the flags field that if set, the audio will be repeated until the notification is cancelled or the notification window is opened.

Constant Value: 4 (0x00000004)

    NotificationManager notificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);

    Uri soundUri = RingtoneManager
            .getDefaultUri(RingtoneManager.TYPE_RINGTONE);
    NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(
            getApplicationContext()).setSmallIcon(R.drawable.ic_launcher)
            .setContentTitle("title").setContentText("message")
            .setSound(soundUri); // This sets the sound to play

    Notification mNotification = mBuilder.build();

    mNotification.flags |= Notification.FLAG_INSISTENT;

    // Display notification
    notificationManager.notify(1, mNotification);