Android日历更改时间更改日期到今天(Android calendar changing time changing date to today)

 我正在使用Calendar ，我可以设置日期并获取未来的日期。 假设我有一个DatePickerDialog设置日期，例如15-09-2016 ，我有一个TimePickerDialog设置小时，例如： 22 ： 30 
 
 我的问题是当我使用DatePickerDialog并将日期设置为： 15-09-2016它没关系。 但是，然后我使用TimePickerDialog并尝试更改时间， Calendar's日期将更改为今天（ 27-07-2016 ）。 
 
 但是，如果我首先使用TimePickerDialog然后使用DatePickerDialog没有问题，我可以设置日期： 15-09-2016 22:30 
 
 我检查了Google和Stackoverflow，并在创建此问题时查看了建议的问题，但我没有看到任何内容。 
 
 我的DatePickerDialog ： 
 
DatePickerDialog datePickerDialog=
   new DatePickerDialog(thisActivity, new DatePickerDialog.OnDateSetListener() {
       @Override
       public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) {
          mCalendarAlarm.set(Calendar.YEAR, year);
          mCalendarAlarm.set(Calendar.MONTH, monthOfYear);
          mCalendarAlarm.set(Calendar.DAY_OF_MONTH, dayOfMonth);
          SimpleDateFormat dateformat = new SimpleDateFormat("dd MMM yyyy kk:mm",Locale.getDefault());
          String datetime = dateformat.format(mCalendarAlarm.getTime());
          alarmDate.setText(datetime);
          }}, mCalendarAlarm.get(Calendar.YEAR), mCalendarAlarm.get(Calendar.MONTH),
          mCalendarAlarm.get(Calendar.DAY_OF_MONTH));

datePickerDialog.getDatePicker().setMinDate(mCalendarAlarm.getTimeInMillis());
datePickerDialog.show();
 
 我的TimePickerDialog ： 
 
TimePickerDialog mTimePicker;
int hour = mCalendarAlarm.get(Calendar.HOUR_OF_DAY);
int minute = mCalendarAlarm.get(Calendar.MINUTE); 
mTimePicker = new TimePickerDialog(thisActivity,mPickerTheme, new TimePickerDialog.OnTimeSetListener() {
   @Override
   public void onTimeSet(TimePicker timePicker, int selectedHour, int selectedMinute) {
       mCalendarAlarm.set(Calendar.HOUR_OF_DAY,selectedHour);
       mCalendarAlarm.set(Calendar.MINUTE,selectedMinute);
       alarmDialogTime.setText(String.format(Locale.getDefault(),"%02d:%02d", selectedHour, selectedMinute));
       }}, hour, minute, true);
mTimePicker.show();
 
 声明Calendar ： 
 
mCalendarAlarm = Calendar.getInstance();
mCalendarAlarm.setTimeZone(TimeZone.getDefault());
 
 那么我怎么能解决这个问题，或者你们之前有没有办法解决这个问题。 感谢帮助 ！ 

I am using Calendar and I am able to set date and get date for future. Assume that I have one DatePickerDialog which sets date for example 15-09-2016 and I have one TimePickerDialog which sets hour for example : 22:30
 
My problem is when I use DatePickerDialog and set date to : 15-09-2016 it's ok. But, then I use TimePickerDialog and try to change time, Calendar's date is changing to today (27-07-2016).
 
But if I use TimePickerDialog firstly then use DatePickerDialog there is no issue and I am able to set date : 15-09-2016 22:30
 
I checked Google and Stackoverflow and looked suggested questions when creating this question but i didnt see anything.
 
My DatePickerDialog :
 
DatePickerDialog datePickerDialog=
   new DatePickerDialog(thisActivity, new DatePickerDialog.OnDateSetListener() {
       @Override
       public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) {
          mCalendarAlarm.set(Calendar.YEAR, year);
          mCalendarAlarm.set(Calendar.MONTH, monthOfYear);
          mCalendarAlarm.set(Calendar.DAY_OF_MONTH, dayOfMonth);
          SimpleDateFormat dateformat = new SimpleDateFormat("dd MMM yyyy kk:mm",Locale.getDefault());
          String datetime = dateformat.format(mCalendarAlarm.getTime());
          alarmDate.setText(datetime);
          }}, mCalendarAlarm.get(Calendar.YEAR), mCalendarAlarm.get(Calendar.MONTH),
          mCalendarAlarm.get(Calendar.DAY_OF_MONTH));

datePickerDialog.getDatePicker().setMinDate(mCalendarAlarm.getTimeInMillis());
datePickerDialog.show();
 
My TimePickerDialog :
 
TimePickerDialog mTimePicker;
int hour = mCalendarAlarm.get(Calendar.HOUR_OF_DAY);
int minute = mCalendarAlarm.get(Calendar.MINUTE); 
mTimePicker = new TimePickerDialog(thisActivity,mPickerTheme, new TimePickerDialog.OnTimeSetListener() {
   @Override
   public void onTimeSet(TimePicker timePicker, int selectedHour, int selectedMinute) {
       mCalendarAlarm.set(Calendar.HOUR_OF_DAY,selectedHour);
       mCalendarAlarm.set(Calendar.MINUTE,selectedMinute);
       alarmDialogTime.setText(String.format(Locale.getDefault(),"%02d:%02d", selectedHour, selectedMinute));
       }}, hour, minute, true);
mTimePicker.show();
 
When declaring Calendar :
 
mCalendarAlarm = Calendar.getInstance();
mCalendarAlarm.setTimeZone(TimeZone.getDefault());
 
So how can I solve this issue , is there a way or you guys meet this issue before. Thanks for help !

原文：https://stackoverflow.com/questions/38622800