Android - Unlock A Button Every X hours

Question

I Want to every time A user Clicks Some Button, The Button Deactivate For X hours, How Can I Do this?

if i just get the current time and next time from android device the user can cheat.

Answer 1

you can get the current time from API. TimezoneDb provides a free API:

When you wanna deactivate the button.
1) call the api get the time.
2) calculate the deactivation time by adding X hours.
3) save the time in shared Pref or db.

for activating it again
1) call api get the time.
2) compare time with saved time.