C# INavigationService类代码示例

 public LoginViewModel(RegistrationService registrationService, INavigationService navigationService)
 {
     _registrationService = registrationService;
     _navigationService = navigationService;
     _registrationService.AuthorizationFinished += OnAuthorizationFinished;
     UserName = "[email protected]";
 }

 public StopSelectionViewModel(IUnitOfWork unitOfWork, AppUse appUse, INavigationService navigationService)
     : base(appUse, ApplicationPage.StopSelection, unitOfWork, navigationService)
 {
     this.timerSearch = new DispatcherTimer();
     this.timerSearch.Interval = new TimeSpan(0, 0, 1);
     this.timerSearch.Tick += TimerTickSearch;
 }

        /// <summary>
        /// Initializes a new instance of the <see cref="MainViewModel"/> class.
        /// </summary>
        /// <param name="televisionService">An instance of television data service.</param>
        /// <param name="navigationService">An instance of application navigation service.</param>
        public MainViewModel(ITelevisionService televisionService, INavigationService navigationService)
        {
            this.televisionService = televisionService;
            this.navigationService = navigationService;

            this.InitializeCommands();
        }

        public MainViewModel(INavigationService navigationService, IPlatformEvents platformEvents)
        {
            _navigationService = navigationService;
            _platformEvents = platformEvents;

            _platformEvents.BackButtonPressed += BackButtonPressed;
        }

  public EntityListPageViewModel(IEntityRepository entityRepository, INavigationService navService, IEventAggregator eventAggregator) {
      _entityRepository = entityRepository;
      _navService = navService;
      _eventAggregator = eventAggregator;
      NavCommand = new DelegateCommand<Entity>(OnNavCommand);
      EntityDetailNavCommand = new DelegateCommand(() => _navService.Navigate("EntityDetail", 0));
 }

 public ProximityViewModel(INavigationService navigationService, IFavoriteService favoriteService)
     : base(navigationService, favoriteService)
 {
     this.navigationService = navigationService;
     this.ProximityProcess = new ProximityProcess();
     this.ProximityProcess.PropertyChanged += ProximityProcess_PropertyChanged;
 }

        protected ViewModel(INavigationService navigationService)
        {
            PhoneApplicationService.Current.Deactivated += this.OnDeactivated;
            PhoneApplicationService.Current.Activated += this.OnActivated;

            this.navigationService = navigationService;
        }

 public ServiceConfigurationBuilder(INavigationService navigationService, IActionInvokerFactory invokerFactory)
 {
     _navigationService = navigationService;
     _configuration = ServiceConfiguration.CreateSilently(
         "My configuration name", "http://baseuri",
         _navigationService, invokerFactory);
 }

        public LoadingPage()
        {
            _navigationService = SimpleIoc.Default.GetInstance<INavigationService>();

            InitializeComponent();
            this.progressBar.IsIndeterminate = true;
        }

        public MainViewModel(INavigationService navigationService)
        {
            if (navigationService == null) throw new ArgumentNullException(nameof(navigationService));
            _navigationService = navigationService;

            ShowMessageCommand = new RelayCommand(ShowMessage);
        }

 public StarWarsMoviesViewModel(IStarWarsRepository rep, INavigationService nav)
 {
     repo = rep;
     this.nav = nav;
     
     LoadCommands();
 }

        public SaveChanges_ViewModel(ILogger Logger_, INavigationService NavigationService_)
        {
            if (!IsInDesignMode)
            {
                Logger = Logger_;
                NavigationService = NavigationService_;
                CommandDispatcher = new MvxCommand<string>(CmdDispatcher);
            }

            if (IsInDesignMode)
            {
                LearningItem li1 = new LearningItem { Name = "Mazzy" };
                LearningItem li2 = new LearningItem { Name = "Futurama" };

                Changes = new ObservableCollection<Entity>
                {
                    new Entity {
                        HardReference = li1,
                        Obj = new WeakReference<Base>(li1),
                        Order = 1,
                        State = Entity.EntityState.Added,
                        Type = li1.GetType()
                    },
                    new Entity {
                        HardReference = li2,
                        Obj = new WeakReference<Base>(li2),
                        Order = 2,
                        State = Entity.EntityState.Added,
                        Type = li1.GetType()
                    }
                };
            }

        }

        public DomainViewModel(ISentenceService sentenceService, INavigationService navigationService)
        {
            _sentenceService = sentenceService;
            _navigationService = navigationService;

            LoadDomains();
        }

		public MainViewModel(IRouteRepository routeRepository, INavigationService navigationService)
		{
			_routeRepository = routeRepository;
			_navigationService = navigationService;
			this.SearchCommand = new Command (this.SearchAsync);
			this.SearchAsync ();
		}			

        public void Initialize( INavigationService navigationService )
        {
            Container.Bind<IMapService, MapService>();
            Container.Bind<IPluginSettings, PluginSettings>();

            Messenger.Register<MapSearchRequest>( navigationService.NavigateTo<MainViewModel, MapSearchRequest> );
        }