How to declare global variables in Android?

How to declare global variables in Android?

android singleton global-variables state

android

How to prevent custom views from losing state across screen orientation changes

android android-activity state screen-orientation

android

How to add a custom button state

android button state

android

android fragment onRestoreInstanceState

android save state android-fragments

android

Android : How to update the selector(StateListDrawable) programmatically

android button state

android

Android save state on orientation change

android state ondestroy android-bundle

android

Detecting outgoing call and call hangup event in android

android state phone-call

android

Android - Best Practices for ViewModel State in MVVM?

android mvvm state viewmodel

android

Fragment replacement triggers onQueryTextChange on searchview

android android-fragments save state searchview

android

Android: Check if service is running via. bindService

android service state

android

Android different EditText backgrounds for different states using shapes, selector or list

android styles android-edittext state shape

android

Android ListView State List not showing default item background

android listview background state

android