final String CHANNEL_ID = "com.chao.channel.id";final String CHANNEL_NAME = "com.chao.channel.name";NotificationManager mManager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);Notification.Builder builder = null;if(Build.VERSION.SDK_INT < Build.VERSION_CODES.O){        builder = new Notification.Builder(this);}else{/** * Oreo不用Priority了，用importance * IMPORTANCE_NONE 关闭通知 * IMPORTANCE_MIN 开启通知，不会弹出，但没有提示音，状态栏中无显示 * IMPORTANCE_LOW 开启通知，不会弹出，不发出提示音，状态栏中显示 * IMPORTANCE_DEFAULT 开启通知，不会弹出，发出提示音，状态栏中显示 * IMPORTANCE_HIGH 开启通知，会弹出，发出提示音，状态栏中显示 */过  NotificationChannel notificationChannel = new   NotificationChannel(Config.CHANNEL_ID, Config.CHANNEL_NAME, NotificationManager.IMPORTANCE_HIGH); //如果这里用IMPORTANCE_NOENE就需要在系统的设置里面开启渠道， //通知才能正常弹出    mManager.createNotificationChannel(notificationChannel);  builder = new Notification.Builder(this,Config.CHANNEL_ID); } notification = builder.build();mManager.notify(555, notification);

 部分机型使用IMPORTANCE_LOW MIN NONE仍然发出提示音问题，修改channelId，可以解决