小编hko*_*kon的帖子

我遇到了自定义wpf启动画面实现的问题.问题是在加载完成并且应该显示MainWindow之后,它有时不会被带到前面,即Activate()调用失败.它可能发生1/10倍.应用程序在Windows7/64上运行.

这是实施(完整源样本)

public partial class App : Application
{
    private Splash _splash;
    private SplashVM _viewModel;

    protected override void OnStartup(StartupEventArgs e)
    {
        base.OnStartup(e);

        // starts splash in separate GUI thread
        StartSplash();

        // continues on loading main application in main gui thread
        LoadMainAppFakeSteps(1000, 3);

        // tells splash screen to start shutting down
        Stop();

        // Creates mainwindow for application
        // The problem is that the mainwindow sometimes fails to activate, 
        // even when user has not touched mouse or keyboard (i.e …