How to find back stack activities in an android application?

Question

I have an application with activities back stack A -> B -> C -> D -> E. Now at activity E, I want to know the back stack activities that I navigated from. How do I find this

Answer 1

I recommend you to utilize startActivityForResult instead of startActivity, then in order to retrieve the origin/source activity- call getCallingActivity().getClassName().

How will A know it came from home? Use getIntent() its

getAction() -> android.intent.action.MAIN

and

getCategories() -> android.intent.category.LAUNCHER