简单Android倒计时实现

/定义一个倒计时的内部类/

class CountDown extends CountDownTimer {
        public CountDown(long millisInFuture, long countDownInterval)
        {
            super(millisInFuture, countDownInterval);
        }

        @Override
        public void onFinish()
        {
            mShowTest.setText("finish");
        }

        @Override
        public void onTick(long millisUntilFinished)
        {
            mShowTest.setText("0" + millisUntilFinished / 60000 + ":" + (millisUntilFinished % 60000 /1000) + ":" + (millisUntilFinished % 60000 % 100));
        }
    }

调用如下：第一个参数是倒计时的时间，第二个参数是时间间隔

CountDown mCountDown = new CountDown (3 * 60 * 1000, 10);
        mCountDown .start();