处理程序或计时器android

试试这个代码-

public class TimertestActivity extends Activity {    Handler handler = new Handler();    Runnable runnable = new Runnable() {        public void run() { afficher();        }    };          @Override         public void onCreate(Bundle icicle) {super.onCreate(icicle);setContentView(R.layout.main);          runnable.run();      }      public void afficher()      {          Toast.makeText(getbaseContext(),          "test",          Toast.LENGTH_SHORT).show();          handler.postDelayed(runnable, 1000);      }}