91 lines
3.4 KiB
C#
91 lines
3.4 KiB
C#
using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Linq;
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using Windows.ApplicationModel;
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using Windows.ApplicationModel.Activation;
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using Windows.Foundation;
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using Windows.Foundation.Collections;
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using Windows.UI.Xaml;
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using Windows.UI.Xaml.Controls;
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using Windows.UI.Xaml.Controls.Primitives;
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using Windows.UI.Xaml.Data;
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using Windows.UI.Xaml.Input;
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using Windows.UI.Xaml.Media;
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using Windows.UI.Xaml.Navigation;
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// The Blank Application template is documented at http://go.microsoft.com/fwlink/?LinkId=234227
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namespace DrumKit
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{
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/// <summary>
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/// Provides application-specific behavior to supplement the default Application class.
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/// </summary>
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sealed partial class App : Application
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{
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/// <summary>
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/// Initializes the singleton application object. This is the first line of authored code
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/// executed, and as such is the logical equivalent of main() or WinMain().
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/// </summary>
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public App()
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{
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this.InitializeComponent();
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this.Suspending += OnSuspending;
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}
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/// <summary>
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/// Invoked when the application is launched normally by the end user. Other entry points
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/// will be used when the application is launched to open a specific file, to display
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/// search results, and so forth.
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/// </summary>
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/// <param name="args">Details about the launch request and process.</param>
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protected override void OnLaunched(LaunchActivatedEventArgs args)
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{
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Frame rootFrame = Window.Current.Content as Frame;
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// Do not repeat app initialization when the Window already has content,
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// just ensure that the window is active
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if (rootFrame == null)
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{
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// Create a Frame to act as the navigation context and navigate to the first page
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rootFrame = new Frame();
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if (args.PreviousExecutionState == ApplicationExecutionState.Terminated)
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{
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//TODO: Load state from previously suspended application
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}
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// Place the frame in the current Window
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Window.Current.Content = rootFrame;
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}
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if (rootFrame.Content == null)
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{
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// When the navigation stack isn't restored navigate to the first page,
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// configuring the new page by passing required information as a navigation
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// parameter
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if (!rootFrame.Navigate(typeof(LoadingPage), args.Arguments))
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{
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throw new Exception("Failed to create initial page");
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}
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}
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// Ensure the current window is active
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Window.Current.Activate();
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}
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/// <summary>
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/// Invoked when application execution is being suspended. Application state is saved
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/// without knowing whether the application will be terminated or resumed with the contents
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/// of memory still intact.
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/// </summary>
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/// <param name="sender">The source of the suspend request.</param>
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/// <param name="e">Details about the suspend request.</param>
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private void OnSuspending(object sender, SuspendingEventArgs e)
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{
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var deferral = e.SuspendingOperation.GetDeferral();
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deferral.Complete();
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}
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}
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}
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