Android：将日期和时间的值组合成一个值

I have an application where the user selects a date as well as a time (using DatePicker and TimePicker). Is there any way to combine all the values into one integer? Both the DatePicker and TimePicker return integers, if I add them up, will the value then be the selected date and time, or does it need to be done some other way?

我有一个应用程序，用户选择日期和时间（使用DatePicker和TimePicker）。有没有办法将所有值组合成一个整数？ DatePicker和TimePicker都返回整数，如果我将它们加起来，那么值是选定的日期和时间，还是需要以其他方式完成？

The way I've been understanding date and time, is it gives the difference in milliseconds from a certain point. Based on that, I would guess that adding the amounts together would give the correct time (taking into account the different starting times of the various methods).

我一直在理解日期和时间的方式是，它给出了从某个点开始的毫秒差异。基于此，我猜想将数量加在一起会得到正确的时间（考虑到各种方法的不同开始时间）。

Thanks!

谢谢！

1 个解决方案

#1

You can use a Calendar, set the components then get the date.

您可以使用日历，设置组件然后获取日期。

Calendar cal = Calendar.getInstance();
cal.set(Calendar.HOUR_OF_DAY, 12);
cal.set(Calendar.MINUTE, 37);
cal.set(Calendar.DAY_OF_MONTH, 13);
cal.set(Calendar.MONTH, Calendar.JANUARY);

Date d = cal.getTime();
long time = cal.getTimeInMillis();