I have two activities A and B. Activity A starts activity B. Now I’m in B, how to call A’s function?
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I have two activities A and B. Activity A starts activity B. Now I’m in B, how to call A’s function?
Unless function is static you are out of luck. I suggest that you place necessary functions in Application object or make them static.
Note that activity not on top of the stack can be destroyed at any time.