SplashScreenService不起作用，因爲我想

Question

我想讓SplashScreenService啓動並運行。它確實顯示我的飛濺屏幕，但它不會關閉，永遠不會。

我有這樣的代碼在app.xaml.cs：

protected override void OnStartup(StartupEventArgs e) 

{ 

ServiceLocator.Default.RegisterTypeIfNotYetRegistered<ISplashScreenService, SplashScreenService>(); 

var splashScreenService = ServiceLocator.Default.ResolveType<ISplashScreenService>(); 
      splashScreenService.Enqueue(new ActionTask("Task1", tracker => Thread.Sleep(2000))); 

splashScreenService.Commit<SplashScreenViewModel>(); 

base.OnStartup(e); 

} 

任何人可以幫助我什麼，我做錯了什麼？

Answer 1

好像你正在阻塞UI線程，請嘗試用這種方式：

public partial class App 
{ 
    #region Methods 

    protected override void OnStartup(StartupEventArgs e) 
    { 
     base.OnStartup(e); 
     var splashScreenService = ServiceLocator.Default.ResolveType<ISplashScreenService>(); 
     splashScreenService.Enqueue(new ActionTask("Task1", tracker => Thread.Sleep(2000))); 
     splashScreenService.Enqueue(new ActionTask("Task2", tracker => Thread.Sleep(2000))); 
     splashScreenService.Enqueue(new ActionTask("Task3", tracker => Thread.Sleep(2000))); 
     splashScreenService.CommitAsync(); 
    } 

    #endregion 
} 

或自定義開機畫面

public partial class App 
{ 
    #region Methods 

    protected override void OnStartup(StartupEventArgs e) 
    { 
     base.OnStartup(e); 
     var splashScreenService = ServiceLocator.Default.ResolveType<ISplashScreenService>(); 
     splashScreenService.Enqueue(new ActionTask("Task1", tracker => Thread.Sleep(2000))); 
     splashScreenService.Enqueue(new ActionTask("Task2", tracker => Thread.Sleep(2000))); 
     splashScreenService.Enqueue(new ActionTask("Task3", tracker => Thread.Sleep(2000))); 
     splashScreenService.CommitAsync<SplashScreenViewModel>(); 
    } 

    #endregion 
}