扩展的飞溅屏幕 - 不同于指导的样本 [英] Extended Splash Screen - Sample Different than Guidance
问题描述
msdn上的当前指南 扩展启动画面 建议您将用户控件设置为Window.Current.Content。
The current guide on msdn on extending the splash screen suggests that you place a user control as the Window.Current.Content.
然而， 示例应用 它链接到但具有不同的实现。 它建议您创建一个页面并导航到它，并在页面背景中加载
流程。
However, the sample app that it links to however has a different implementation. It suggests that you create a Page and navigate to it, and have the loading process work in the background of the page.
我遇到了与Matt类似的问题 此处 和 这里，
主要是关于页面闪烁并导航到空白页面。
I have experienced similar problems to Matt here and here, mostly about the page flicker and navigating to a blank page.
看看指南如何说明Matt，我自己和示例应用程序的不同方式，我想知道什么是"最正确的" '方法是。 自8400发布以来都进行了修订，所以我不认为它们已经过时了。
Seeing how the guide states a different way to how Matt, myself, and the sample app does it, I would like to know what the 'most correct' approach is. Both have been revised since the 8400 release, so I don't believe either is outdated.
谢谢，
Jason Grimme
Jason Grimme
推荐答案
Jason，
Jason,
我创建了一个用户控件，这样你就可以避免回头的问题 这是我的代码：
I have created a user control, this way you avoid the problems of going back. Here's my code:
SplashScreen splashScreen = args.SplashScreen;eSplash = new ExtendedSplash(splashScreen, false);splashScreen.Dismissed += eSplash.dismissedEventHandler;Window.Current.Content = eSplash;Window.Current.Activate();
public sealed partial class ExtendedSplash : UserControl{ private Rect splashImageCoordinates; // Rect to store splash screen image coordinates. private SplashScreen splash; // Variable to hold the splash screen object. private bool dismissed = false; // Variable to track splash screen dismissal status. private readonly EventHandler _loaded; /// <summary> /// Constructor with splash screen information /// </summary> /// <param name="splashImageCoordinates">coordinates of the splash screen image</param> /// <param name="dismissed">boolean value indicating whether the splash screen has been dismissed</param> public ExtendedSplash(SplashScreen splashScreen, bool dismissed, EventHandler LoadedHandler = null) { InitializeComponent(); splash = splashScreen; this.dismissed = dismissed; _loaded = LoadedHandler; SetPositions(); Window.Current.SizeChanged += ExtendedSplash_OnResize; Loaded += ExtendedSplash_Loaded; } void ExtendedSplash_Loaded(object sender, RoutedEventArgs e) { // now load our data } private void SetPositions() { this.splashImageCoordinates = splash.ImageLocation; Debug.WriteLine(splashImageCoordinates.ToString()); // Position the extended splash screen image in the same location as the splash screen image. extendedSplashImage.SetValue(Canvas.LeftProperty, this.splashImageCoordinates.X); extendedSplashImage.SetValue(Canvas.TopProperty, this.splashImageCoordinates.Y); extendedSplashImage.Height = this.splashImageCoordinates.Height; extendedSplashImage.Width = this.splashImageCoordinates.Width; LoadingIndicator.Measure(new Size(double.MaxValue, double.MaxValue)); LoadingIndicator.SetValue(Canvas.LeftProperty, this.splashImageCoordinates.X + (splashImageCoordinates.Width-LoadingIndicator.ActualWidth)/2); LoadingIndicator.SetValue(Canvas.TopProperty, this.splashImageCoordinates.Y + 380); } void ExtendedSplash_OnResize(Object sender, Windows.UI.Core.WindowSizeChangedEventArgs e) { // Safely update the splash screen image coordinates if (this.splash != null) { SetPositions(); } } /// <summary> /// Event handler for dismissed event to know when the Splash screen is dismissed /// </summary> /// <param name="sender">SplashScreen</param> internal void dismissedEventHandler(Windows.ApplicationModel.Activation.SplashScreen sender, object e) { this.dismissed = true; }}然后，一旦我的所有数据都被加载，我用新的rootframe替换窗口内容并导航正确的页面等。 似乎对我来说效果很好。
Then once all my data is loaded, I replace the window content with my new rootframe and navigate the correct page etc. Seems to work pretty well for me.
HTH。
... Stefan
...Stefan
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