Android中短信验证码倒计时功能

1.内部类.

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

        @Override
        public void onFinish() {// 计时完毕.
            code.setText("获取验证码");
            code.setClickable(true);
        }

        @Override
        public void onTick(long millisUntilFinished) {
            code.setClickable(false);//防止重复点击.
            code.setText(millisUntilFinished / 1000 + "s");
        }
    }

2.初始化.
TimeCount time = new TimeCount(60000, 1000);//60s

3.调用开始的方法.
time.start();