Android Question Always to call Activity.Finish?

[Alwinl]

I have read up on the lifecycle of Activities but there is something I am not sure about. When launching a new activity, I use StartActvity and have a 'back' button on the new activity where I use Activity.Finish.
I have noticed that when going back to the calling activity only 'Resume' is fired, not 'Create' implying that the activity was not destroyed.

My question is - is it advisable to always use Activity.Finish on the first activity when starting a second one, thereby only having one activity 'live' at any given time? Or does this simply depend on the usage scenario

 

[Erel]

It depends on the usage. The question is what should happen when the user closes the second activity. If the app should return to the previous one then you shouldn't call Activity.Finish (when you start the second one).

 

[Alwinl]

Thanks Erel

 

[Alwinl]

I just thought of something else on this - are process globals available even when the activity where it's defined is destroyed?

 

[Erel]

Process global variables are not destroyed as long as the process runs.