SplashScreenService不起作用，因为我想

Question

我想让SplashScreenService启动并运行。它确实显示我的飞溅屏幕，但它不会关闭，永远不会。

我有这样的代码在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); 

} 

任何人可以帮助我什么，我做错了什么？

Answer 1

好像你正在阻塞UI线程，请尝试用这种方式：

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 
} 

或自定义开机画面

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 
}