Which calendar can be used for the next task?

Question

Android

I'm starting to write under android, and I just can't find a view for the following task: It is
necessary that in the calendar it was possible to mark days with a color (and this was saved) and LongClick worked.
CalendarView does not allow this.

Answer 1

Pay attention to this library:
A very flexible thing in terms of customizing the appearance. For example, I needed to do this: