我有按钮Start和Stop,以及textview 我想点击按钮开始textview倒计时100-> 0。 当我点击按钮停止倒计时停止,然后我点击按钮再次开始倒计时继续。 对不起,我的英语不好。
答案 0 :(得分:0)
那样的东西?
private Handler h = null;
final int delay = 2500; //millisecond
private Runnable myRunnable = new Runnable(){
public void run(){
runOnUiThread(new Runnable() {
//Stuff here
}
}
};
//To stop Handler when you leave your activity
@Override
public void onStop() {
super.onStop();
if (h != null && myRunnable != null) h.removeCallbacks(myRunnable);
Log.d(TAG, "Stop Handler");
}
//Call this when you want to start your work
public void StartHandler(){
h = new Handler();
h.postDelayed(myRunnable, delay);
Log.d(TAG, "Start Handler");
}