MaterialDatePicker get selected dates

Question

I\'m calling a MaterialDatePicker like this in Android:

MaterialDatePicker.Builder> builder = MaterialDatePicker.Builder.dateRa         


        

Answer 1

The answer of GR Envoy is good, but I want to change a bit. It would be better to set time zone to UTC.

private val outputDateFormat = SimpleDateFormat("dd.MM.yyyy", Locale.getDefault()).apply {
    timeZone = TimeZone.getTimeZone("UTC")
}

...
picker.addOnPositiveButtonClickListener {
    val text = outputDateFormat.format(it)
}

Answer 2

Just use the addOnPositiveButtonClickListener listener called when the user confirms a valid selection:

For a single date picker:

picker.addOnPositiveButtonClickListener(new MaterialPickerOnPositiveButtonClickListener<Long>() {
      @Override public void onPositiveButtonClick(Long selection) {
        // Do something...
      }
    });

For a range date picker:

MaterialDatePicker<Pair<Long, Long>> pickerRange = builderRange.build();
pickerRange.show(....);

pickerRange.addOnPositiveButtonClickListener(new MaterialPickerOnPositiveButtonClickListener<Pair<Long, Long>>() {
  @Override public void onPositiveButtonClick(Pair<Long,Long> selection) {
       Long startDate = selection.first;
       Long endDate = selection.second;
       //Do something...
  }
});

Answer 3

For those that struggle with this and the fact that their timestamp is off a day, here is my working solution. I have a requirement of API 23 so I could not use any of the nice Epoch functions in java.time.*. The key for me was realizing I need to do the timezone offset math.

        picker.addOnPositiveButtonClickListener(new MaterialPickerOnPositiveButtonClickListener<Long>() {
        @Override
        public void onPositiveButtonClick(Long selectedDate) {
            // user has selected a date
            // format the date and set the text of the input box to be the selected date
            // right now this format is hard-coded, this will change
            ;
            // Get the offset from our timezone and UTC.
            TimeZone timeZoneUTC = TimeZone.getDefault();
            // It will be negative, so that's the -1
            int offsetFromUTC = timeZoneUTC.getOffset(new Date().getTime()) * -1;

            // Create a date format, then a date object with our offset
            SimpleDateFormat simpleFormat = new SimpleDateFormat("MM/dd/yyyy", Locale.US);
            Date date = new Date(selectedDate + offsetFromUTC);

            dataEntry.setText(simpleFormat.format(lDate));
        }
    });
    picker.show(myActivity.getSupportFragmentManager(), picker.toString());

Answer 4

I searched around and found out many Material DatePicker Range get selected dates solutions were deprecated.

I am using dateRangePicker in my project, so below codes are solely for dateRangePicker() because I need to obtain both start date and end date.

In my Java activity code:

            materialDatePicker.addOnPositiveButtonClickListener(new MaterialPickerOnPositiveButtonClickListener() {
            @Override
            public void onPositiveButtonClick(Object selection) {
//                Get the selected DATE RANGE
                Pair selectedDates = (Pair) materialDatePicker.getSelection();
//              then obtain the startDate & endDate from the range
                final Pair<Date, Date> rangeDate = new Pair<>(new Date((Long) selectedDates.first), new Date((Long) selectedDates.second));
//              assigned variables
                Date startDate = rangeDate.first;
                Date endDate = rangeDate.second;
//              Format the dates in ur desired display mode
                SimpleDateFormat simpleFormat = new SimpleDateFormat("dd MMM yyyy");
//              Display it by setText
                datedisplay.setText("SELECTED DATE : " +  simpleFormat.format(startDate) + " Second : " + simpleFormat.format(endDate));
            }

        });

Sample output :