How to use Activity Results API in react native android?

Question

I am trying to create android native module for react native and I am using Activity Results API to start another activity. But registerForActivityResult is not found, even I have these two dependencies listed in the Gradle:

implementation "androidx.activity:activity:1.2.0"
implementation "androidx.fragment:fragment:1.3.0"

This is what I am trying to achieve:

ActivityResultLauncher<String> mGetContent = registerForActivityResult(new GetContent(),
    new ActivityResultCallback<Uri>() {
        @Override
        public void onActivityResult(Uri uri) {
            // Handle the returned Uri
        }
    }
);

Oyvind Habberstad · Accepted Answer · 2023-01-17 09:53:17Z

2

I know I'm a bit late to the party. But I had the same issue, and I thought I should share how I solved this hoping it would help others.

First I created a new interface (in it's own file) to have a contract between the MainActivity and the React Native module:

public interface OnActivityResultImplementation<S, T> {
    S execute(T a);
}

In my MainActivity I have this:

public class MainActivity extends ReactActivity {
protected OnActivityResultImplementation onActivityResultImplementation = null;
protected ActivityResultLauncher<Intent> mStartForResult = registerForActivityResult(new ActivityResultContracts.StartActivityForResult(),
        result -> {
            onActivityResultImplementation.execute(result);
        });
   ...
}

And then in the React Native Module I set it up the like this:

public class RCTPushProvisioningModule extends ReactContextBaseJavaModule {

@ReactMethod
public void callNativeApiMethod(final Promise promise) {
    MainActivity activity = (MainActivity) this.getReactApplicationContext().getCurrentActivity();
    activity.onActivityResultImplementation = result -> {
        ActivityResult activityResult = (ActivityResult) result;
        switch (activityResult.getResultCode()) {
            case Activity.RESULT_OK:
                promise.resolve(OK);
                break;
            case Activity.RESULT_CANCELED:
                promise.resolve(CANCELED);
                break;
            default:
                promise.reject(ERROR_CODE, "FAILED");
                break;
        }
        return null;
    };

    // Use the ActivityResultLauncher<Intent> from MainActivity to wire the whole thing up.
    fictiveNativeApi.callMethodThatRequiresActivityResultLauncher(activity.mStartForResult);
  }
}

edited Jan 17, 2023 at 9:53

answered Jan 17, 2023 at 9:39

Oyvind Habberstad

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1 Comment

BraveEvidence Over a year ago

How to do this for the new architecture using TurboModules. Can you help here stackoverflow.com/questions/75576907/…

SudoPlz · Accepted Answer · 2025-08-11 16:48:24Z

Here's my attempt for migrating a known module called react-native-image-picker into using Results API.

As you can see we register onHostResume

    @Override
    public void onHostResume() {
        Activity currentActivity = getCurrentActivity();
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP &&
                currentActivity instanceof FragmentActivity fragmentActivity) {
            initializeLaunchers(fragmentActivity);
        }
    }

then

private void initializeLaunchers(FragmentActivity activity) {
        if (activity == null) return;

        // Only register if we haven't already for this activity
        if (currentFragmentActivity != activity || cameraLauncher == null) {
            try {
                // Check if we can register (activity must be at least CREATED)
                if (activity.getLifecycle().getCurrentState().isAtLeast(Lifecycle.State.CREATED)) {
                    currentFragmentActivity = activity;

                    cameraLauncher = activity.registerForActivityResult(
                            new ActivityResultContracts.StartActivityForResult(),
                            result -> {
                                int requestCode = REQUEST_LAUNCH_IMAGE_CAPTURE;
                                if (this.options != null && this.options.mediaType.equals(mediaTypeVideo)) {
                                    requestCode = REQUEST_LAUNCH_VIDEO_CAPTURE;
                                }
                                onActivityResult(activity, requestCode, result.getResultCode(), result.getData());
                            }
                    );

                    libraryLauncher = activity.registerForActivityResult(
                            new ActivityResultContracts.StartActivityForResult(),
                            result -> {
                                onActivityResult(activity, REQUEST_LAUNCH_LIBRARY, result.getResultCode(), result.getData());
                            }
                    );

                }
            } catch (IllegalStateException e) {
                // Failed to register - activity in wrong state
            }
        }
    }

and finally we just use like so:

cameraLauncher.launch(cameraIntent);

Check the full code here.

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