UI idea for month and year selection
We can have a switch or a selection kind of a thing on the left hand side on the current date view. Where the user can select the view he/she wants something like the Samsung calendar(Attaching screenshots for the same). The date / month / year selection will become extremely easy and the UX is gonna be brilliant.
Let me know if this works for you. I really love you library though

@fitut nice calendar.
For year and month selection, the UI will be OK with the style as follows:

We could change the title into year. User can swipe left/right to select years. And change the date selection into horizontal scrollable 12 months.
And I think a range selection is needed such as 2018/09-2022/07.
Hi, this is my customized with added year. Year's range can be set by yourself.

Hi, this is my customized with added year. Year's range can be set by yourself.
Very nice!! Would you please share your codes here?
Hi, this is my customized with added year. Year's range can be set by yourself.
plz share code brooo