安卓中的定時器

定時執行某項任務（定時器）

1. 方法一：
   

   1. new CountDownTimer(30000, 1000) {
   2. public void onTick(long millisUntilFinished) {
   3. mTextField.setText("seconds remaining: " + millisUntilFinished / 1000);
   4. }
   5. public void onFinish() {
   6. mTextField.setText("done!");
   7. }
   8. }.start();
   
   
2. 方法二：
   

   1. Timer timer = new Timer();
   2. TimerTask timerTask = new TimerTask() {
   3. @Override
   4. public void run(){
   5. Intent intent;
   6. if (sessionManager.isFirstStart()) {
   7. sessionManager.savaBooleanValus(SessionManager.IS_FIRST_START, false);
   8. intent = new Intent(context, Activity_Splash.class);
   9. } else {
   10. intent = new Intent(context, MainActivity.class);
   11. }
   12. startActivity(intent);
   13. }
   14. };
   15. timer.schedule(timerTask, 3000);