Android ActivityResult API unresolved reference error registerForActivityResult

Question

I am trying to use ActivityResult APIs as stated here ActivityResult APIs

But it is giving unresolved reference error.

I am using following dependencies

api 'androidx.activity:activity:1.1.0'
api 'androidx.activity:activity-ktx:1.1.0'
api 'androidx.fragment:fragment:1.2.5'
api 'androidx.fragment:fragment-ktx:1.2.5'

Have a look at the dependencies listed on your linked page. It doesn't explicitly state so, and I've not checked yet, but those are probably the minimum versions necessary. — Mike M., Jul 24 '20 at 04:35
Yes I tried with those mentioned versions also but same error then I thought to use stable versions. — Krishna Meena, Jul 24 '20 at 04:38
Yeah, I got the same behavior. Odd. However, my IDE tells me the newest versions are `alpha07`, and it works as expected when upgrading to those. That is, `"androidx.activity:activity:1.2.0-alpha07"` and `"androidx.fragment:fragment:1.3.0-alpha07"`. — Mike M., Jul 24 '20 at 04:44

score 21 · Accepted Answer · edited Aug 22 '21 at 08:30

21

As per the Getting a result from an activity guide:

it is strongly recommended to use the Activity Result APIs introduced in AndroidX Activity 1.2.0-alpha02 and Fragment 1.3.0-alpha02.

So using the stable versions will not include those APIs. The latest versions of each is alpha07, which would mean your dependencies would be:

api 'androidx.activity:activity-ktx:1.2.0-alpha07'
api 'androidx.fragment:fragment-ktx:1.3.0-alpha07'

NOTE: your activity must extend from ComponentActivity, which was introduced in AppCompat 1.1.0 and includes the registerForActivityResult() API

edited Aug 22 '21 at 08:30

Troy

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answered Jul 24 '20 at 04:49

ianhanniballake

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I have the same issue and having this didn't help. The IDE shows "Unresolved reference: registerForActivityResult" , yet it can build just fine... How could it be? – android developer Jun 28 '21 at 11:31
Also unable to get Android Studio to autocomplete `registerForActivityResult`. It's saying "Unresolved reference: registerForActivityResult" so I cannot code with this api at all. – Troy Aug 25 '21 at 07:21

score 4 · Answer 2 · answered Aug 10 '21 at 07:37

4

try this one new version is come.

 implementation 'androidx.activity:activity-ktx:1.3.1'

answered Aug 10 '21 at 07:37

Najib.Nj

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I Have this on my build.gradle but I also get the error specified earlier. – cyber_angel Aug 18 '21 at 21:59
@cyber_angel OK, but please check dependencies of project build.gradle with version of gradle require to latest one to works. – Najib.Nj Aug 24 '21 at 06:18
please check you kotlin version gradle. – Najib.Nj Nov 16 '21 at 07:03

score 1 · Answer 3 · edited Aug 22 '23 at 09:42

Just in case someone else has this problem when working in an old project...

I saw in a different computer using inheritance that your activity extends from AppCompatActivity() which extends from FragmenteActivity().

I notice FragmentActivity is different from the one were I was having this issue...

So I updated the appcompat library, using :

 androidx.appcompat:appcompat:1.4.1

And this solved the issue.

score 0 · Answer 4 · answered Jul 21 '23 at 12:36

Make sure you added these dependencies in your build.gradle

implementation 'androidx.activity:activity-ktx:1.7.2'
implementation 'androidx.fragment:fragment-ktx:1.6.0'

If it doesn't works then clear your file system cache and local history with File -> Invalidate Cache & Restart and rebuild your project.

Android ActivityResult API unresolved reference error registerForActivityResult

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