android Java Multiple classes update activity UI (how to share data)

Question

I know this question has been asked several times, but I cannot seems to find a suitable answer or there is multiple solutions. I am just trying to find were to look and the bes

Answer 1

I'd suggest having look at EventBus as per their description:

Event bus for Android and Java that simplifies communication between Activities, Fragments, Threads, Services, etc. Less code, better quality.

OR

Have a look at the official android documentation Communicating with fragments which shows how to use ViewModels to share data between activities and fragments and fragment to fragment.