给TestView周期性的设置text

private Timer launcherTimeSetTimer = new Timer();

launcherTimeSetTimer.schedule(new TimerTask() {

@Override
public void run() {
// TODO Auto-generated method stub
launcherTime.post(new Runnable() {

@Override
public void run() {
// TODO Auto-generated method stub
launcherTime.setText(getTimeByPart());
}
});
}

}, 0, 500);

其中getTimeByPart是一个 get时间的函数