6d6d7914f9
Added `CalendarDelegate` class that supports plugging in custom calendar logics other than Gregorian Calendar System. Here is an example implementation for Nepali(Bikram Sambat) Calendar System: https://github.com/sarbagyastha/nepali_date_picker/blob/m3/lib/src/nepali_calendar_delegate.dart Demo using the `NepaliDatePickerDelegate`: https://date.sarbagyastha.com.np/ Fixes https://github.com/flutter/flutter/issues/77531, https://github.com/flutter/flutter/issues/161873 ## Pre-launch Checklist - [X] I read the [Contributor Guide] and followed the process outlined there for submitting PRs. - [x] I read the [Tree Hygiene] wiki page, which explains my responsibilities. - [x] I read and followed the [Flutter Style Guide], including [Features we expect every widget to implement]. - [x] I signed the [CLA]. - [x] I listed at least one issue that this PR fixes in the description above. - [x] I updated/added relevant documentation (doc comments with `///`). - [x] I added new tests to check the change I am making, or this PR is [test-exempt]. - [x] I followed the [breaking change policy] and added [Data Driven Fixes] where supported. - [x] All existing and new tests are passing. --------- Co-authored-by: Tong Mu <dkwingsmt@users.noreply.github.com>