CODEWITHSUNDEEP
androidreact-native
Pir Shukarullah Shah
Pir Shukarullah Shah

Reputation: 4232

How to use Activity Results API in react native android?

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
        }
    }
);

Upvotes: 5

Views: 1647

Answers (1)

Oyvind Habberstad
Oyvind Habberstad

Reputation: 1052

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);
  }
}

Upvotes: 2

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