Android中在控件上显示倒计时

Android中在控件上显示倒计时

Android中在控件上显示倒计时

public class CountdownTimerActivity extends Activity {
 private TimeCount time;
 private Button checking;
 @Override
 protected void onCreate(Bundle savedInstanceState) {
 // TODO Auto-generated method stub
 super.onCreate(savedInstanceState);
 setContentView(R.layout.main);
 time = new TimeCount(60000, 1000);//构造CountDownTimer对象
 checking = (Button) findViewById(R.id.button1);
 checking.setOnClickListener(new OnClickListener() {
 @Override
 public void onClick(View v) {
 time.start();//开始计时
 }
 });
 }

 class TimeCount extends CountDownTimer {
 public TimeCount(long millisInFuture, long countDownInterval) {
 super(millisInFuture, countDownInterval);//参数依次为总时长,和计时的时间间隔
 }
 @Override
 public void onFinish() {//计时完毕时触发
 checking.setText("重新验证");
 checking.setClickable(true);
 }
 @Override
 public void onTick(long millisUntilFinished){//计时过程显示
 checking.setClickable(false);
 checking.setText(millisUntilFinished /1000+"秒");
 }
 }