onActivityResult gets called before onDestroy

Question

Inside MainActivity.java I make the following call:

Intent activity = new Intent(this, CameraDetectionActivity.class);
startActivityForResult(activity, request);

And at some point inside CameraDetectionActivity I run the following 2 lines (all happens in the GUI thread):

setResult(Activity.RESULT_OK);
finish();

I would expect onDestroy to get called before onActivityResult in MainActivity but they are called in the opposite order. Any idea why this is happening?

score 11 · Accepted Answer · answered Jun 26 '11 at 16:20

11

onDestroy is called at some point later, and that may be arbitrarily long. We want to resume the next activity as quickly as possible so the UI is in there, and then take care of stopping and destroying previous activities only once the UI has switched.

answered Jun 26 '11 at 16:20

hackbod

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Thanks. But than is there a way to find out/be noticed when a child activitay has been completely destroyed? – Frank Feb 13 '13 at 13:27
1

I did it by sending a broadcast intent in "onDestroy" of the inner activity, catched by the outer activity's broadcastreceiver. Works like a charm! – Frank Feb 13 '13 at 14:42

score 0 · Answer 2 · edited Jun 07 '22 at 08:58

0

Put attention pass your data to parent activity before calling super.onDestroy();

@Override
protected void onDestroy() {
    Intent intent = new Intent();
    setResult(RESULT_OK, intent);
    finish();
    super.onDestroy();
}

edited Jun 07 '22 at 08:58

Saeed Zhiany

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answered Jan 04 '20 at 16:28

Houssin Boulla

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onActivityResult gets called before onDestroy

2 Answers2