Please note, this question is not a duplicate of the following:
Also, another similar question was asked before, but that doesn't mention orientation changes (and is unresolved).
My onActivityResult
method in the Fragment
does get called if I don't switch orientation. However, if I follow these steps, it doesn't get called:
startActivityForResult(new Intent(MediaStore.ACTION_IMAGE_CAPTURE), Constants.REQ_CODE_IMAGE_CAPTURE);
onActivityResult
still gets called in the parent FragmentActivity. However, due to this warning I am getting:
W/FragmentActivity(4418): Activity result no fragment exists for index: 0x22d73
...my guess is that the parent gets destroyed due to the orientation change, and after having been re-created, can't find the Fragment
that called startActivityForResult
in the first place.
Is this a framework bug? How can this be worked around?
EDIT: Added more code due to popular demand.
FragmentActivity.java:
...
fragment = new ExampleFragment();
FragmentTransaction transaction = getSupportFragmentManager().beginTransaction();
transaction.replace (R.id.mainContentView, fragment);
if (clearBackStack) {
// clear the back stack
while (getSupportFragmentManager().popBackStackImmediate ());
// add the current transaction to the back stack
transaction.addToBackStack (null);
}
else {
transaction.addToBackStack(null);
}
transaction.commit();
...
@Override
public void onActivityResult(int reqCode, int resultCode, Intent data) {
super.onActivityResult(reqCode, resultCode, data);
}
ExampleFragment.java:
Intent takePicture = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(takePicture, Constants.REQ_CODE_IMAGE_CAPTURE);
...
@Override
public void onActivityResult(int requestCode, int resultCode, Intent imageReturnedIntent) {
super.onActivityResult(requestCode, resultCode, imageReturnedIntent);
switch (requestCode) {
case Constants.REQ_CODE_IMAGE_CAPTURE:
// handle added image
}
}
Resolved it by moving all of the onActivityResult
logic from the Fragment
to the Activity
.
Do note, however, that the reqCode
that gets passed to the Fragment
is different than the reqCode
that gets delivered to the parent Activity
(the one for the Activity
is set by the system I think). This meant that I had to also move the original startActivityForResult
call from the Fragment
to the Activity
, and then create a method to call it from the Fragment
when needed.
If anyone finds a more elegant way, I would be happy to hear about it.