trigger an event in another activity

Question

is there a way trigger an event in another activity which might be below the current activity in the stack (the activity below the current activity is not a part of my application)

for eg: if activity 'Act1' of application 'A' launches Activity 'Act12' of appliication 'AB', then is there a way for 'Act12' to trigger an event (like a backButtonPressed() or onPause() etc) for 'Act1' ? Thanks in Advance.

Answer 1

You'll only be able to do this if you have access to the source code of both applications, via an intent-filter in the hidden application, or if the second application already has an intent filter specified that does what you want it to do. onPause() will be called anyway as soon as an Activity is hidden