adroid之跑秒

 private CountDownTimer timer = new CountDownTimer(60000, 1000) {


        @Override
        public void onTick(long millisUntilFinished) {
            code_btn.setEnabled(false);
            code_btn.setText((millisUntilFinished / 1000) + "秒后重发");
        }

        @Override
        public void onFinish() {
           // codeBtn.setBackgroundResource(R.drawable.button);
            code_btn.setEnabled(true);
            code_btn.setText("获取验证码");
        }
    };