talosdev

public class RuntimePermissionRequestHandler implements PermissionRequestHandler {
    
    private final WeakReference<Activity> activityWeakReference;
    private final String permission;
    private final int requestCode;
    private AsyncSubject<PermissionRequestResult> subject;
    
    public RuntimePermissionRequestHandler(Activity activity, String permission, int requestCode) {
        this.activityWeakReference = new WeakReference<>(activity);
        this.permission = permission;

talosdev

    @Override
    @SuppressWarnings({"MissingPermission"})
    public void onRequestPermissionsResult(int requestCode,
                                           @NonNull String[] permissions,
                                           @NonNull int[] grantResults) {
        if (requestCode == locationRequestCode) {
            if (grantResults[0] == PackageManager.PERMISSION_GRANTED) {
                permissionsRequestResultDispatcher.dispatchResult(true);
            } else {
                permissionsRequestResultDispatcher.dispatchResult(false);

talosdev

/**
 * Dispatches the result of the permission request from the Activity to the
 * {@link RuntimePermissionRequestHandler}
 */
public class PermissionsRequestResultDispatcher {
    
    private RuntimePermissionRequestHandler permissionRequestHandler;
    
    @Inject
    public PermissionsRequestResultDispatcher(RuntimePermissionRequestHandler handler) {

talosdev

    @Override
    public Single<PermissionRequestResult> requestPermission() {
        subject = AsyncSubject.create();
        
        if (activityWeakReference.get() != null) {
            ActivityCompat.requestPermissions(
                activityWeakReference.get(),
                new String[] {permission},
                requestCode);
        }

talosdev

    @Override
    public boolean checkHasPermission() {
        if (activityWeakReference.get() != null) {
            Activity activity = activityWeakReference.get();
            return ContextCompat.checkSelfPermission(activity, permission)
                == PackageManager.PERMISSION_GRANTED;
        }
        
        return false;
    }

talosdev

public interface PermissionRequestHandler {
    
    boolean checkHasPermission();
    
    Single<PermissionRequestResult> requestPermission();
    
    enum PermissionRequestResult {
        GRANTED,
        DENIED_SOFT,
        DENIED_HARD

talosdev

public class LocationActivity extends AppCompatActivity implements LocationContract.View {

    private static final int REQ_CODE = 111;

    @BindView(R.id.latitudeTextView)
    TextView latitudeTextView;
    @BindView(R.id.longitudeTextView)
    TextView longitudeTextView;
    @BindView(R.id.softDenyTextView)
    TextView softDeniedWarningTextView;

talosdev

public class LocationPresenter implements LocationContract.Presenter {

    private static final String TAG = "LOCATION";

    private final WeakReference<LocationContract.View> viewWeakReference;
    private final LocationInteractor interactor;
    private final CompositeDisposable disposables = new CompositeDisposable();

    @Inject
    public LocationPresenter(LocationContract.View view, LocationInteractor interactor) {

talosdev

package talosdev.clean.features.location.presentation;

import android.util.Log;

import java.lang.ref.WeakReference;

import javax.inject.Inject;

import io.reactivex.disposables.CompositeDisposable;
import talosdev.clean.features.location.domain.LocationInteractor;

talosdev

public class LocationInteractor {

    private final LocationProvider locationProvider;

    @Inject
    public LocationInteractor(LocationProvider locationProvider) {
        this.locationProvider = locationProvider;
    }

    public Single<Location> getLocation() {