我正在为Android做倒计时，但我无法实现如何创建它

Question

Date lol = c.getTime();
long milli_now = lol.getTime();
c.set(2013, c.MAY, 21);             
Date lol1 = c.getTime();                
long milli_then = lol1.getTime();               
long milli_tot = (milli_then - milli_now);              
long sec = (milli_tot/1000);
long min = 0;
long hour = 0;
min = (sec/60);
days.setText("Days left: " + (sec/60/60/24));
countdown.setText(""+hour+":"+min+":"+sec);

我该怎么办才能拥有216小时，60分钟，60秒？

我无法弄清楚算法。

Answer 1

以下是您可以做的事情：

long totDiff = (lastDate.getTime() - firstDate.getTime());      // Total differance in milliseconds
long Sdiff = (totDiff / 1000) % 60;                             // Differance in seconds
long Mdiff = (totDiff / (60 * 1000)) %60;                       // Differance in minutes
long Hdiff = (totDiff / (60 * 60 * 1000));                      // Remaining time in hours

这应该可以为您提供所需的输出。

Answer 2

你对这段代码有什么看法？据我所知，你唯一缺少的是

hour = min / 60;