Android: Best way to share code between activities? [closed]

Answer 1

Create a BaseActivity with the included layout for its layout with the functionality in that BaseActivity. Then extends BaseActivity in your other Activities.

Doing this you can override the functions in any of your Activities if you need more/different functionality from them. I do this so I can have a completely custom "Action Bar" in all of my Activities. My back button, overflow button, and another image button functionality is all contained in the BaseActivity.

Answer 2

The solution of codeMagic is elegant. If you wanted to use this in more than one project, I'd recommend you to put this class (e.g. the "BaseActivity" in a library (mark this project as a library) and import this.