Android使用CountDownTimer实现倒计时功能_mydowntimer

如果时间大于一小时，则显示时  分  秒  ，否则只显示 分 秒，如果不足一分钟，则只显示秒

Activity中的相关声明：

private static final long DOWN_TIMER_COUNT = 3671000;
private MyDownTimer mDownTimer;
 

onCreate()中

mTimerTv = (TextView)this.findViewById(R.id.timer_notice_tv);
mDownTimer = new MyDownTimer(DOWN_TIMER_COUNT, 1000);
mDownTimer.start();

具体实现的内部类：

	class MyDownTimer extends CountDownTimer
	{
 
		public MyDownTimer(long millisInFuture, long countDownInterval)
		{
			super(millisInFuture, countDownInterval);
		}
 
		@Override
		public void onTick(long mill) 
		{
			long a = mill/1000/3600;
			long b = mill/1000%3600/60;
			long c = mill/1000%3600%60;
			if(mill/1000 >= 3600)
			{
				mTimerTv.setText(String.format(getString(R.string.sdk_timer_tv_a), a, b, c));
			}
			else if(mill/1000 >= 60)
			{
				mTimerTv.setText(String.format(getString(R.string.sdk_timer_tv_b), b, c));
			}
			else if(mill/1000 > 0)
			{
				mTimerTv.setText(String.format(getString(R.string.sdk_timer_tv_c), c));
			}
		}
		
		@Override
		public void onFinish() 
		{
			mTimerTv.setVisibility(View.GONE);
			showToast("begin to exam");
		}
	}

strings.xml

    <string name="sdk_timer_tv_a" formatted="false">距离考试\n%s时%s分%s秒</string>
    <string name="sdk_timer_tv_b" formatted="false">距离考试\n%s分%s秒</string>
    <string name="sdk_timer_tv_c" formatted="false">距离考试\n%s秒</string>