android使用毫秒在datetime选择器中设置时间

Question

我有一段时间以毫秒为单位说1384841520328，我需要转换并设置在datepicker和timepicker中，我将时间从datetime picker转换为，

Calendar calendar = Calendar.getInstance();
calendar.set(datePicker.getYear(), datePicker.getMonth(), datePicker.getDayOfMonth(), 
timePicker.getCurrentHour(), timePicker.getCurrentMinute(), 0);
NewTimeForAlert = calendar.getTimeInMillis();

现在我想将这些毫秒转换回日期时间选择器格式，我正在使用android的默认小部件。

Answer 1

Calendar calendar2 = Calendar.getInstance();
calendar2.setTimeInMillis(1384841520328);
timePicker.setCurrentHour(calendar2.get(Calendar.HOUR_OF_DAY)); // or Calendar.HOUR for 12 hour format
timePicker.setCurrentMinute(calendar2.get(Calendar.MINUTE));