使用CountDownTimer实现倒计时功能

 // 倒计时60s
         new CountDownTimer(60000, 1000) {

             @Override
             public void onTick(long millisUntilFinished) {
                 mReGetAuthCodeButton
                         .setText(getString(R.string.tip_get_code_time,
                                 millisUntilFinished / 1000));

             }

             @Override
             public void onFinish() {
                 mBackAble = true;
                 mReGetAuthCodeButton
                         .setBackgroundResource(R.drawable.blue_button_selector);
                 mReGetAuthCodeButton.setText(R.string.re_get_code);
             }
         }.start();

之前使用handler thread实现，发现非常影响其它view的响应，改为这个很好。

http://blog.csdn.net/yuanjh2001/article/details/6075315