android 下的倒计时

new CountDownTimer(10000,1000) {
    @Override
    public void onTick(long millisUntilFinished) {

        Log.e(TAG, "还剩下的秒数: "+millisUntilFinished/1000 );
    }

    @Override
    public void onFinish() {
        Toast.makeText(MainActivity.this,"finish",Toast.LENGTH_SHORT).show();
    }
}.start();