Android DatePicker in spinner mode not showing date

问题

I'm using DatePicker in spinner mode, and sets min and max limit. Then updates the date as max value. Date column does not have a value when the DatePickerDialog shown. When I tap/scroll up or down the values are shown.

MyLayout:

         <DatePicker
                android:id="@+id/date_picker"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:layout_marginLeft="@dimen/spacing_default"
                android:layout_marginRight="@dimen/spacing_default"
                android:datePickerMode="spinner"
                android:calendarViewShown="false" />

Java Part : (in onViewCreated)

 private static final int DATE_PICKER_MONTH_OFFSET = 1;
 private static final int DATE_PICKER_MIN_DATE_OFFSET_IN_MIN = 1;

datePicker.setMinDate( now().minusMinutes( 
         DATE_PICKER_MIN_DATE_OFFSET_IN_MIN).getMillis() );
datePicker.setMaxDate( activationDateTime.getMillis() );
datePicker.updateDate( activationDateTime.getYear(), 
         activationDateTime.getMonthOfYear() - DATE_PICKER_MONTH_OFFSET,
                    activationDateTime.getDayOfMonth() );

Problematic Screenshot:

What more is needed to make the date part to be displayed when the DatePickerDialog is shown?

UPDATE/EDIT:

The seems that picker show an empty view when the value set is same as the max limit. I could resolve the issue (while launching the DatePicker) by placing datePicker.updateDate first and then call datePicker.setMaxDate. The setMaxDate will validate the previously value and sets correctly. But now I face the same problem when I scroll the month from Jul to Aug, the day view becomes empty!

Any solution/suggestion appreciated.

回答1:

There seems to have bug in the android widget DatePicker in the spinner mode. Already such a ticket present in the Google issue tracker also : https://issuetracker.google.com/issues/64508670

Unfortunately no work around or suggestions available in the issue tracker.

回答2:

Had the same issue. Solved it like that:

 datePicker.init(initYear, initMonthOfYear, initDayOfMonth,
            new DatePicker.OnDateChangedListener() {
                @Override
                public void onDateChanged(DatePicker view, int year, int monthOfYear, int dayOfMonth) {
                    Resources res = Resources.getSystem();
                    int id = res.getIdentifier("day", "id", "android");
                    NumberPicker dayPicker = datePicker.getRootView().findViewById(id);
                    if (dayPicker != null) {
                        id = res.getIdentifier("numberpicker_input", "id", "android");
                        TextView inputText = dayPicker.findViewById(id);
                        if (inputText != null && TextUtils.isEmpty(inputText.getText())) {
                            inputText.setText(String.valueOf(dayPicker.getValue()));
                        }
                    }
                }
            });

来源：https://stackoverflow.com/questions/51530726/android-datepicker-in-spinner-mode-not-showing-date

标签

android

datepicker

android-datepicker