Fix for DatePicker displays incorrect date selection when navigating to next month. #26064
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Root cause
The issue was caused by incorrect handling of the month parameter when creating the DatePickerDialog. The month value from VirtualView?.Date was passed directly to the CreateDatePickerDialog method without adjusting for the difference in month indexing between the .NET framework (1-based) and Android's DatePickerDialog (0-based). This mismatch resulted in an incorrect month being displayed when navigating between months in the dialog.
Description of Issue Fix
The fix involves adjusting the month value passed to the DatePickerDialog in the CreatePlatformView method by subtracting 1 from the DateTime.Month value. This ensures compatibility with Android's 0-based month indexing, while maintaining correct behavior with the .NET framework’s 1-based month indexing, allowing the date to display correctly when navigating between months.
Tested the behavior in the following platforms.
Issues Fixed
Fixes #25943
Output
DatePicker-BeforeFix.mp4
DatePicker-AfterFix.mp4