public RegisterUserPresenter(IRegisterUserView view, IIdentityService identityService = null)
        {
            _view = view;

            _identityService = identityService ?? ServiceLocator.Provider.GetService <IIdentityService>();

            RegisterCommand = new Command(async() => await RegisterNewUser());
        }
 public RegisterUserPresenter( IRegisterUserView view, IRegistrationTask task )
 {
     _view = view;
        _tasks = task;
 }
 public RegisterUserPresenter(IRegisterUserView view)
     : this(view, new RegistrationTask())
 {
 }