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diff --git a/Xamarin.Forms.ControlGallery.WindowsPhone/App.xaml.cs b/Xamarin.Forms.ControlGallery.WindowsPhone/App.xaml.cs
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+´╗┐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();
+ }
+ }
+} \ No newline at end of file