无法在未调用Looper.prepare（）Android的线程内创建处理程序。 循环计时器

Question

I'm trying to receive message from my php server by creating a thread in a service but it doesnt work. can't go in the while loop and the error message as title shows. Please Help.

            //Set the schedule function and rate
            Timer t = new Timer();
            t.scheduleAtFixedRate(new TimerTask() {

                    @Override
                    public void run() {
                        runOnUiThread(new Runnable() {

                            @Override
                            public void run() {


                        // TODO Auto-generated method stub



                            }

                        });
                    }

                    private void runOnUiThread(Runnable runnable) {
                        // TODO Auto-generated method stub
                        String flag = receivermessage();
                        while (flag.equals("N")){
                            notifyUser();
                        }
                        Log.d(TAG, "Download Successful");
                    }



            }, 0, 10000);

Answer 1

最好使用asynctask并在asynctask doinbackground（）mtd中接收msg。由于网络服务调用可能会花费更多时间，因此您无法在Android中阻塞主线程超过5秒。