如何定期调用asyncTasks

只需使用一个计时器。

final Handler handler = new Handler();Timer timer = new Timer();TimerTask task = new TimerTask() { @Override     public void run() {       handler.post(new Runnable() {          public void run() {    new UploadAsyncTask().execute();  new DownloadAsyncTask().execute();          }        });      }};timer.schedule(task, 0, 1000); //it executes this every 1000ms