Android Studio onActivityResult does not return

Question

I am showing the pop-up asking it to activate the GPS then use " onActivityResult " to catch the result, only it does not return anything. Researching I saw several similar problems but nothing worked. If you can help me.

import android.app.Activity;
import android.content.Intent;
import android.content.IntentSender;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Toast;

import androidx.fragment.app.Fragment;

import com.google.android.gms.common.api.ApiException;
import com.google.android.gms.common.api.ResolvableApiException;
import com.google.android.gms.location.LocationRequest;
import com.google.android.gms.location.LocationServices;
import com.google.android.gms.location.LocationSettingsRequest;
import com.google.android.gms.location.LocationSettingsResponse;

import com.google.android.gms.location.LocationSettingsStatusCodes;
import com.google.android.gms.tasks.OnCompleteListener;
import com.google.android.gms.tasks.Task;

import transposte.abibeta10des02.abibeta01.R;

public class CarroFragment extends Fragment {

    protected static final int REQUEST_CHECK_SETTINGS = 0x1;

    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        View view = inflater.inflate(R.layout.fragment_carro, null);

        getLocationDialog();

        return view;
    }

    public void getLocationDialog()
    {
        LocationRequest locationRequest = LocationRequest.create();
        locationRequest.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);
        locationRequest.setInterval(30 * 1000);
        locationRequest.setFastestInterval(5 * 1000);

        LocationSettingsRequest.Builder builder = new LocationSettingsRequest.Builder()
                .addLocationRequest(locationRequest);
        builder.setAlwaysShow(true); //this is the key ingredient

        Task<LocationSettingsResponse> result =
                LocationServices.getSettingsClient(getActivity()).checkLocationSettings(builder.build());

        result.addOnCompleteListener(new OnCompleteListener<LocationSettingsResponse>()
        {
            @Override
            public void onComplete(Task<LocationSettingsResponse> task)
            {
                try {
                    LocationSettingsResponse response = task.getResult(ApiException.class);
                    // All location settings are satisfied. The client can initialize location
                    // requests here.

                }
                catch (ApiException exception)
                {
                    switch (exception.getStatusCode())
                    {
                        case LocationSettingsStatusCodes.RESOLUTION_REQUIRED:
                            // Location settings are not satisfied. But could be fixed by showing the
                            // user a dialog.
                            try {
                                // Cast to a resolvable exception.
                                ResolvableApiException resolvable = (ResolvableApiException) exception;
                                // Show the dialog by calling startResolutionForResult(),
                                // and check the result in onActivityResult().

                                resolvable.startResolutionForResult(
                                        getActivity(),
                                        REQUEST_CHECK_SETTINGS);
                            }
                            catch (IntentSender.SendIntentException e)
                            {
                                // Ignore the error.
                            }
                            catch (ClassCastException e)
                            {
                                // Ignore, should be an impossible error.
                            }
                            break;
                        case LocationSettingsStatusCodes.SETTINGS_CHANGE_UNAVAILABLE:
                            // Location settings are not satisfied. However, we have no way to fix the
                            // settings so we won't show the dialog.

                            break;
                    }
                }
            }
        });

    }

    public void onActivityResult(int requestCode, int resultCode, Intent data)
    {
        super.onActivityResult(requestCode, resultCode, data);
        switch (requestCode)
        {
            case CarroFragment.REQUEST_CHECK_SETTINGS:
                switch (resultCode)
                {
                    case Activity.RESULT_OK:
                        // All required changes were successfully made
                        Toast.makeText(getActivity(), "Ativado", Toast.LENGTH_LONG).show();
                        break;
                    case Activity.RESULT_CANCELED:
                        // The user was asked to change settings, but chose not to
                        Toast.makeText(getActivity(), "Nõo ativado", Toast.LENGTH_LONG).show();
                        break;
                    default:
                        break;
                }
                break;
        }
    }
}

I am showing the pop-up asking it to activate the GPS then use " onActivityResult " to catch the result, only it does not return anything. Researching I saw several similar problems but nothing worked. If you can help me.

Answer 1

I took a look and saw that your Fragment lifecycle methods are missing the notes @Override, that’s right?

Another thing to check out is that in your Androidmanifest is if Activity is the host of your Fragment (getActivity()) doesn’t have something like:

noHistory = true

Which in the documentation makes it clear that:

A value of "true" means that the activity will not be included in the history. The activity will not remain in the job stack, so the user cannot return to it. In this case, onActivityResult() will never be called if you start another activity for the result of this activity.

When you mention that nothing went right, preferably give an explanation of what were the solutions you tried. This helps a lot to better filter the problem.

I hope I’ve helped ;)