我的Android8.0以上手机，我能够收到通知，但是我自定义修改的通知栏内容我更改了也没变，这个需要怎么处理呀

```
//send msg to MainActivity
private void processCustomMessage(Context context, Bundle bundle) {
String channelID = "1";
String channelName = "channel_name";

    // 获得系统推送的自定义消息
    String message = bundle.getString(JPushInterface.EXTRA_ALERT);

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

    //适配安卓8.0的消息渠道
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
        NotificationChannel channel = new NotificationChannel(channelID, channelName, NotificationManager.IMPORTANCE_HIGH);
        notificationManager.createNotificationChannel(channel);
    }

    NotificationCompat.Builder notification =
            new NotificationCompat.Builder(context, channelID);

    notification.setAutoCancel(true)
            .setContentText("我是内容")
            .setContentTitle("我是Title")
            .setSmallIcon(R.drawable.icon_audio)
            .setDefaults(Notification.DEFAULT_ALL);


    notificationManager.notify((int) (System.currentTimeMillis() / 1000), notification.build());
}