Inheritance: ViewModelBase
Example #1
0
		/// <summary>
		/// Invoked when the application is launched normally by the end user.  Other entry points
		/// will be used when the application is launched to open a specific file, to display
		/// search results, and so forth.
		/// </summary>
		/// <param name="args">Details about the launch request and process.</param>
		protected override async void OnLaunched(LaunchActivatedEventArgs args)
		{
			Frame rootFrame = Window.Current.Content as Frame;

			// Do not repeat app initialization when the Window already has content,
			// just ensure that the window is active

			if (rootFrame == null)
			{
				this.ShellViewModel = Ioc.Container.Resolve<ShellViewModel>();
				this.ShellViewModel.Initialize();

				// Create a Frame to act as the navigation context and navigate to the first page
				rootFrame = new Frame();
				//Associate the frame with a SuspensionManager key                                
				SuspensionManager.RegisterFrame(rootFrame, "AppFrame");

				if (args.PreviousExecutionState == ApplicationExecutionState.Terminated)
				{
					// Restore the saved session state only when appropriate
					try
					{
						await SuspensionManager.RestoreAsync();
					}
					catch (SuspensionManagerException)
					{
						//Something went wrong restoring state.
						//Assume there is no state and continue
					}
				}

				// Place the frame in the current Window
				Window.Current.Content = rootFrame;
			}
			if (rootFrame.Content == null)
			{
				// When the navigation stack isn't restored navigate to the first page,
				// configuring the new page by passing required information as a navigation
				// parameter
				Ioc.Container.Resolve<INavigator>().NavigateToViewModel<MainViewModel>();
			}

			if (!string.IsNullOrWhiteSpace(args.Arguments))
			{
				var storage = Ioc.Container.Resolve<IStorage>();
				List<FeedItem> pinnedFeedItems = await storage.LoadAsync<List<FeedItem>>(Constants.PinnedFeedItemsKey);
				if (pinnedFeedItems != null)
				{
					int id;
					if (int.TryParse(args.Arguments, out id))
					{
						var pinnedFeedItem = pinnedFeedItems.FirstOrDefault(fi => fi.Id == id);
						if (pinnedFeedItem != null)
						{
							Ioc.Container.Resolve<INavigator>().NavigateToViewModel<FeedItemViewModel>(pinnedFeedItem);
						}
					}
				}
			}

			// Ensure the current window is active
			Window.Current.Activate();
		}
Example #2
0
        /// <summary>
        /// Invoked when the application is launched normally by the end user.  Other entry points
        /// will be used when the application is launched to open a specific file, to display
        /// search results, and so forth.
        /// </summary>
        /// <param name="e">Details about the launch request and process.</param>
        protected override async void OnLaunched(LaunchActivatedEventArgs e)
        {
#if DEBUG
            if (System.Diagnostics.Debugger.IsAttached)
            {
                this.DebugSettings.EnableFrameRateCounter = true;
            }
#endif

            Frame rootFrame = Window.Current.Content as Frame;

            // Do not repeat app initialization when the Window already has content,
            // just ensure that the window is active
            if (rootFrame == null)
            {
				this.ShellViewModel = Ioc.Container.Resolve<ShellViewModel>();
				this.ShellViewModel.Initialize();

                // Create a Frame to act as the navigation context and navigate to the first page
                rootFrame = new Frame();

                // TODO: change this value to a cache size that is appropriate for your application
                rootFrame.CacheSize = 1;

                if (e.PreviousExecutionState == ApplicationExecutionState.Terminated)
                {
                    // TODO: Load state from previously suspended application
                }

                // Place the frame in the current Window
                Window.Current.Content = rootFrame;
            }

            if (rootFrame.Content == null)
            {
#if WINDOWS_PHONE_APP
                // Removes the turnstile navigation for startup.
                if (rootFrame.ContentTransitions != null)
                {
                    this.transitions = new TransitionCollection();
                    foreach (var c in rootFrame.ContentTransitions)
                    {
                        this.transitions.Add(c);
                    }
                }

                rootFrame.ContentTransitions = null;
                rootFrame.Navigated += this.RootFrame_FirstNavigated;
#endif

				Ioc.Container.Resolve<INavigator>().NavigateToViewModel<MainViewModel>();
            }

			if (!string.IsNullOrWhiteSpace(e.Arguments))
			{
				var storage = Ioc.Container.Resolve<IStorage>();
				List<FeedItem> pinnedFeedItems = await storage.LoadAsync<List<FeedItem>>(Constants.PinnedFeedItemsKey);
				if (pinnedFeedItems != null)
				{
					int id;
					if (int.TryParse(e.Arguments, out id))
					{
						var pinnedFeedItem = pinnedFeedItems.FirstOrDefault(fi => fi.Id == id);
						if (pinnedFeedItem != null)
						{
							Ioc.Container.Resolve<INavigator>().NavigateToViewModel<FeedItemViewModel>(pinnedFeedItem);
						}
					}
				}
			}

            // Ensure the current window is active
            Window.Current.Activate();
        }