Android Question User press back button event (close activity event)

ThePuiu

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Hi all! I have an activity (A) in which 1 image is displayed. In the same activity I have a button that opens another activity (B) in which you can change the picture. I would like to catch the return to the basic activity (A) in order to be able to refresh the picture with the changes made. From activity A I open activity B by calling CallSubDelayed3. How can I notice the return from B in activity A?
 

AnandGupta

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I think Activity A _Resume will me called, after B closes.
 
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