diff options
Diffstat (limited to 'Xamarin.Forms.ControlGallery.WindowsPhone/App.xaml.cs')
| -rw-r--r-- | Xamarin.Forms.ControlGallery.WindowsPhone/App.xaml.cs | 134 |
1 files changed, 134 insertions, 0 deletions
diff --git a/Xamarin.Forms.ControlGallery.WindowsPhone/App.xaml.cs b/Xamarin.Forms.ControlGallery.WindowsPhone/App.xaml.cs new file mode 100644 index 00000000..1842bb86 --- /dev/null +++ b/Xamarin.Forms.ControlGallery.WindowsPhone/App.xaml.cs @@ -0,0 +1,134 @@ +using System; +using System.Collections.Generic; +using System.IO; +using System.Linq; +using System.Runtime.InteropServices.WindowsRuntime; +using Windows.ApplicationModel; +using Windows.ApplicationModel.Activation; +using Windows.Foundation; +using Windows.Foundation.Collections; +using Windows.UI.Xaml; +using Windows.UI.Xaml.Controls; +using Windows.UI.Xaml.Controls.Primitives; +using Windows.UI.Xaml.Data; +using Windows.UI.Xaml.Input; +using Windows.UI.Xaml.Media; +using Windows.UI.Xaml.Media.Animation; +using Windows.UI.Xaml.Navigation; + +// The Blank Application template is documented at http://go.microsoft.com/fwlink/?LinkId=391641 + +namespace Xamarin.Forms.ControlGallery.WindowsPhone +{ + /// <summary> + /// Provides application-specific behavior to supplement the default Application class. + /// </summary> + public sealed partial class App + { + TransitionCollection _transitions; + + /// <summary> + /// Initializes the singleton application object. This is the first line of authored code + /// executed, and as such is the logical equivalent of main() or WinMain(). + /// </summary> + public App() + { + InitializeComponent(); + Suspending += OnSuspending; + } + + /// <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 void OnLaunched(LaunchActivatedEventArgs e) + { +#if DEBUG + if (System.Diagnostics.Debugger.IsAttached) + { + DebugSettings.EnableFrameRateCounter = true; + } +#endif + + var rootFrame = Window.Current.Content as global::Windows.UI.Xaml.Controls.Frame; + + // 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 global::Windows.UI.Xaml.Controls.Frame(); + + // TODO: change this value to a cache size that is appropriate for your application + rootFrame.CacheSize = 1; + + Forms.Init (e); + FormsMaps.Init (Controls.App.Secrets["WinPhoneMapsAuthKey"]); + + 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) + { + // Removes the turnstile navigation for startup. + if (rootFrame.ContentTransitions != null) + { + _transitions = new TransitionCollection(); + foreach (var c in rootFrame.ContentTransitions) + { + _transitions.Add(c); + } + } + + rootFrame.ContentTransitions = null; + rootFrame.Navigated += RootFrame_FirstNavigated; + + // When the navigation stack isn't restored navigate to the first page, + // configuring the new page by passing required information as a navigation + // parameter + if (!rootFrame.Navigate(typeof(MainPage), e.Arguments)) + { + throw new Exception("Failed to create initial page"); + } + } + + // Ensure the current window is active + Window.Current.Activate(); + } + + /// <summary> + /// Restores the content transitions after the app has launched. + /// </summary> + /// <param name="sender">The object where the handler is attached.</param> + /// <param name="e">Details about the navigation event.</param> + void RootFrame_FirstNavigated(object sender, global::Windows.UI.Xaml.Navigation.NavigationEventArgs e) + { + var rootFrame = sender as global::Windows.UI.Xaml.Controls.Frame; + rootFrame.ContentTransitions = _transitions ?? new TransitionCollection() { new NavigationThemeTransition() }; + rootFrame.Navigated -= RootFrame_FirstNavigated; + } + + /// <summary> + /// Invoked when application execution is being suspended. Application state is saved + /// without knowing whether the application will be terminated or resumed with the contents + /// of memory still intact. + /// </summary> + /// <param name="sender">The source of the suspend request.</param> + /// <param name="e">Details about the suspend request.</param> + void OnSuspending(object sender, SuspendingEventArgs e) + { + var deferral = e.SuspendingOperation.GetDeferral(); + + // TODO: Save application state and stop any background activity + deferral.Complete(); + } + } +}
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