ActivityResultContracts.StartActivityForResult() result only called once

Question

When using androids new activity result API, the callback is only firing once for me.

class MyFragment : Fragment() {
   private val intentLauncher = registerForActivityResult(ActivityResultContracts.StartActivityForResult()) { result: ActivityResult ->
      if (result.resultCode == Activity.RESULT_OK) {
         ...
      }
   }
}

private fun onClick(id: Long) {
  val intent = Intent(context, MyActivity::class.java)
  intent.putExtra(MyActivity.ID_EXTRA, id)
  intentLauncher.launch(intent)
}

On first click the fragment launches the activity, and on activity finish the result is passed back correctly. However when the fragment launches the activity again, the activity sets the result and calls finish. However the result callback in the fragment is not fired again.

Also noticed that I didn't need to include:

implementation 'androidx.activity:activity-ktx:1.4.0'
implementation 'androidx.fragment:fragment-ktx:1.4.1'

Does the new activity result API come along with some other dependency? Wondering if something else weird is going on w/ the versions I am pulling in?

EDIT:

Its important to note that this is only happening when using the new activity result api from a fragment to launch a new activity. I do not see the same behavior when launching from an activity. Is there something I need to do differently for fragments?

Does it happen if you recreate your source activity while MyActivity is on top (for example by rotating the device) as well? — Pawel, Mar 29 '22 at 19:05
@Pawel, even with activity recreation after rotate, the result callback is not fired again. — lostintranslation, Mar 29 '22 at 19:21
Which context you pass to Intent class ? Try to pass context from requireActivity() method — Samir Alakbarov, Apr 04 '22 at 15:26
@lostintranslation Please let me know if my answer helped you out. If so, I would appreciate if you could accept my answer If you still have questions, feel free to ask — Mukund Jogi, Apr 07 '22 at 07:48

score 3 · Answer 1 · edited Apr 07 '22 at 16:56

3

Just add launchIntent.setFlags(0); before startActivityForResult().

This reference may help you.

edited Apr 07 '22 at 16:56

Ryan M

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answered Apr 05 '22 at 03:32

Mukund Jogi

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3

This question references the old api, not at all what I was asking. – lostintranslation Apr 07 '22 at 12:48

ActivityResultContracts.StartActivityForResult() result only called once

1 Answers1