Navigating from Activity A->B->C - How to pass data from C to A in onBackPressed()?

Question

1. From Activity A call Activity B
2. from B to C and while calling Activity C
3. I call finish for Activity B

Answer 1

Don't call finish() from B when opening C. Instead, call C with startActivityforResult() and then pass the data back through B when onActivityResult() in B is triggered. Something like:

ActivityB {
    onCreate(Bundle) {
        startActivityForResult(ActivityC, 0);
    }

    onActivityResult(int, int, Intent){
        setResult(resultCode, data);
        finish();
    }
}

Edit:

Apparently adding the flag Intent.FLAG_ACTIVITY_FORWARD_RESULT when calling B should actually achieve your desired result as well.

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