android.app.RemoteServiceException: Bad notification for startForeground

本文介绍: 解决方法是在 And roi d 8.0上创建一个 Not ifi cat i onCha nn el，代码如下。

E/AndroidRuntime(22959): FATAL EXCEPTION: main
E/AndroidRuntime(22959): Process: com.example.lota, PID: 22959
E/AndroidRuntime(22959): android.app.RemoteServiceException: Bad notification for startForeground
E/AndroidRuntime(22959): 	at android.app.ActivityThread.throwRemoteServiceException(ActivityThread.java:2080)
E/AndroidRuntime(22959): 	at android.app.ActivityThread.access$2800(ActivityThread.java:258)
E/AndroidRuntime(22959): 	at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2306)
E/AndroidRuntime(22959): 	at android.os.Handler.dispatchMessage(Handler.java:106)
E/AndroidRuntime(22959): 	at android.os.Looper.loopOnce(Looper.java:233)
E/AndroidRuntime(22959): 	at android.os.Looper.loop(Looper.java:344)
E/AndroidRuntime(22959): 	at android.app.ActivityThread.main(ActivityThread.java:8205)
E/AndroidRuntime(22959): 	at java.lang.reflect.Method.invoke(Native Method)
E/AndroidRuntime(22959): 	at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:589)
E/AndroidRuntime(22959): 	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1071)
I/BLASTBufferQueue(22959): releaseBufferCallbackThunk bufferId:98608154148877 framenumber:1 blastBufferQueue is dead

在这里插入图片描述
解决方法是在 Android 8.0上创建一个 NotificationChann el，代码如下

    /**
     * 启动前台服务
     */
    private void startForeground() {
        String channelId = null;
        // 8.0 以上需要特殊处理
        if (Build.VERSION.SDK_INT &gt;= Build.VERSION_CODES.O) {
            channelId = createNotificationChannel("com.youn", "ForegroundService");
        } else {
            channelId = "";
        }
        NotificationCompat.Builder builder = new NotificationCompat.Builder(this, channelId);
        Notification notification = builder.setOngoing(true)
                .setSmallIcon(R.mipmap.ic_launcher)
                .setPriority(PRIORITY_MIN)
                .setCategory(Notification.CATEGORY_SERVICE)
                .build();
        startForeground(1, notification);
    }

    /**
     * 创建通知通道
     * @param channelId
     * @param channelName
     * @return
     */
    @RequiresApi(Build.VERSION_CODES.O)
    private String createNotificationChannel(String channelId, String channelName){
        NotificationChannel chan = new NotificationChannel(channelId,
                channelName, NotificationManager.IMPORTANCE_NONE);
        chan.setLightColor(Color.BLUE);
        chan.setLockscreenVisibility(Notification.VISIBILITY_PRIVATE);
        NotificationManager service = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
        service.createNotificationChannel(chan);
        return channelId;
    }