Ejemplo n.º 1
0
        /// <summary>
        /// Populates the page with content passed during navigation.  Any saved state is also
        /// provided when recreating a page from a prior session.
        /// </summary>
        /// <param name="navigationParameter">The parameter value passed to
        /// <see cref="Frame.Navigate(Type, Object)"/> when this page was initially requested.
        /// </param>
        /// <param name="pageState">A dictionary of state preserved by this page during an earlier
        /// session.  This will be null the first time a page is visited.</param>
        protected override void LoadState(Object navigationParameter, Dictionary <String, Object> pageState)
        {
            // TODO: Assign a bindable group to this.DefaultViewModel["Group"]
            // TODO: Assign a collection of bindable items to this.DefaultViewModel["Items"]
            DateTime thisDate = DateTime.Now;

            string feedTitle = "Astrology and Horoscope " + thisDate.Year + " by www.findyourfate.com";

            FeedData feedData = FeedDataSource.GetFeed(feedTitle);

            if (feedData != null)
            {
                this.DefaultViewModel["Feeds"] = feedData;
                this.DefaultViewModel["Items"] = feedData.Items;
            }
            else
            {
                itemListView.Visibility = Windows.UI.Xaml.Visibility.Collapsed;
                itemDetail.Visibility   = Windows.UI.Xaml.Visibility.Collapsed;
                titlePanel.Visibility   = Windows.UI.Xaml.Visibility.Collapsed;
                nointernet.Visibility   = Windows.UI.Xaml.Visibility.Visible;
                no.Visibility           = Windows.UI.Xaml.Visibility.Visible;
            }

            if (pageState == null)
            {
                // When this is a new page, select the first item automatically unless logical page
                // navigation is being used (see the logical page navigation #region below.)
                if (!this.UsingLogicalPageNavigation() && this.itemsViewSource.View != null)
                {
                    this.itemsViewSource.View.MoveCurrentToFirst();
                }
            }
            else
            {
                // Restore the previously saved state associated with this page
                if (pageState.ContainsKey("SelectedItem") && this.itemsViewSource.View != null)
                {
                    // TODO: Invoke this.itemsViewSource.View.MoveCurrentTo() with the selected
                    //       item as specified by the value of pageState["SelectedItem"]
                    string   itemTitle    = (string)pageState["SelectedItem"];
                    FeedItem selectedItem = FeedDataSource.GetItem(itemTitle);
                    this.itemsViewSource.View.MoveCurrentTo(selectedItem);
                }
            }
        }
Ejemplo n.º 2
0
        protected async override void OnLaunched(LaunchActivatedEventArgs args)
        {
            Frame rootFrame = Window.Current.Content as Frame;

            Horoscope.Common.SuspensionManager.RegisterFrame(rootFrame, "AppFrame");

            // Do not repeat app initialization when the Window already has content,
            // just ensure that the window is active
            if (rootFrame == null)
            {
                // Create a Frame to act as the navigation context and navigate to the first page
                rootFrame = new Frame();

                /* var connectionProfile = Windows.Networking.Connectivity.NetworkInformation.GetInternetConnectionProfile();
                 * if (connectionProfile != null)
                 */
                if (IsInternet())
                {
                    FeedDataSource feedDataSource = (FeedDataSource)App.Current.Resources["feedDataSource"];
                    if (feedDataSource != null)
                    {
                        if (feedDataSource.Feeds.Count == 0)
                        {
                            await feedDataSource.GetFeedsAsync();
                        }
                    }
                }
                else
                {
                    var messageDialog = new Windows.UI.Popups.MessageDialog("An internet connection is needed to download feeds. Please check your connection and restart the app.");
                    var result        = messageDialog.ShowAsync();
                }

                if (args.PreviousExecutionState == ApplicationExecutionState.Terminated)
                {
                    //TODO: Load state from previously suspended application
                    await Horoscope.Common.SuspensionManager.RestoreAsync();
                }

                // 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

                /*   var connectionProfile = Windows.Networking.Connectivity.NetworkInformation.GetInternetConnectionProfile();
                 * if (connectionProfile != null)
                 */
                if (IsInternet())
                {
                    if (!rootFrame.Navigate(typeof(SplitPage), args.Arguments))
                    {
                        throw new Exception("Failed to create initial page");
                    }
                }
                else if (!rootFrame.Navigate(typeof(BlankPage1), args.Arguments))
                {
                    throw new Exception("Failed to create initial page");
                }
            }
            // Ensure the current window is active
            Window.Current.Activate();
        }