Android Bad notification for startForeground: java.lang.RuntimeException: invalid channel for servic

試験機:小米8 SE,MIUI 11.0.2

    android.app.RemoteServiceException: Bad notification for startForeground: java.lang.RuntimeException: invalid channel for service notification: Notification(channel=null pri=0 contentView=null vibrate=null sound=null defaults=0x0 flags=0x62 color=0x00000000 vis=PRIVATE)

多くの資料を調べたところ、Android 8であることが分かった.0サービス通知の変更
8.0以降はstartserviceを直接呼び出すことができません.

  Intent intet1 = new Intent(MainActivity.this, LocationUtils.class);
        intet1.setAction("android.intent.action.RESPOND_VIA_MESSAGE");
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
            //android8.0    startForegroundService  service
            startForegroundService(intet1);
        } else {
            startService(intet1);
        }

通知を開くとき

Intent nfIntent = new Intent(this, MainActivity.class);
        Notification.Builder builder = new Notification.Builder(this.getApplicationContext())
                .setContentIntent(PendingIntent.getActivity(this, 0, nfIntent, 0)) //   PendingIntent
                .setSmallIcon(R.mipmap.ic_launcher) //           
                .setContentTitle(getResources().getString(R.string.app_name))
                .setContentText("    ...") //        
                .setWhen(System.currentTimeMillis()); //           
        String CHANNEL_ONE_ID = "com.primedu.cn";
        String CHANNEL_ONE_NAME = "Channel One";
        if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.O) {
            //    8.1      
            NotificationChannel notificationChannel = new NotificationChannel(CHANNEL_ONE_ID, CHANNEL_ONE_NAME, NotificationManager.IMPORTANCE_MIN);
            notificationChannel.enableLights(false);//             ，              
            notificationChannel.setShowBadge(false);//      
            notificationChannel.setLockscreenVisibility(Notification.VISIBILITY_SECRET);
            NotificationManager manager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
            manager.createNotificationChannel(notificationChannel);
            builder.setChannelId(CHANNEL_ONE_ID);
        }

        Notification notification = builder.build(); //       Notification
        notification.defaults = Notification.DEFAULT_SOUND; //        
        startForeground(1, notification);

mainfestに追加

参照先:https://www.jianshu.com/p/7691957536a2 https://blog.csdn.net/qq_15527709/article/details/78853048