c# - 在单独的线程上显示 WPF -"NotifyIcon"

Question

我目前正在开发一个 Office 插件，我需要显示一个显示进度的通知对话框，我正在使用 Philipp Sumi's wpf-notifyicon .

我需要显示 notifyicon来自一个单独的线程，因为我有很多代码已经在主线程上执行，这导致 wpf-notifyicon 阻塞并等待，因为 Windows 消息队列中的消息没有被处理。

我知道我应该在单独的线程上执行这段耗时的代码，并从主线程显示通知图标并相应地更新它，但不幸的是，这不是替代方案，因为整个解决方案是单线程的。

例子:

    private FancyPopup fancyPopup;

    private void button1_Click(object sender, EventArgs e)
    {
        notifyIcon = new TaskbarIcon();
        notifyIcon.Icon = Resources.Led;

        fancyPopup = new FancyPopup();

        Thread showThread = new Thread(delegate()
        {
            notifyIcon.ShowCustomBalloon(fancyPopup, System.Windows.Controls.Primitives.PopupAnimation.Fade, null);
        });

        showThread.Start();
    }

    private void button2_Click(object sender, EventArgs e)
    {
        fancyPopup.TextB.Text = "Doing something...";

        //Keep the main thread busy.
        Thread.Sleep(5000);

        fancyPopup.TextB.Text = "Done doing something...";
    }

更新我已经能够使用这个更新的代码取得进一步的进展:

我正在新线程上创建 TaskbarIcon 对象，并使用 Application.Run 处理该线程上的应用程序消息循环...

    private FancyPopup fancyPopup;

    private void button1_Click(object sender, EventArgs e)
    {
        Thread showThread = new Thread(delegate()
        {
            notifyIcon = new TaskbarIcon();
            notifyIcon.Icon = Resources.Led;

            fancyPopup = new FancyPopup();


            notifyIcon.ShowCustomBalloon(fancyPopup, System.Windows.Controls.Primitives.PopupAnimation.Fade, null);

            System.Windows.Forms.Application.Run();
        });

        showThread.SetApartmentState(ApartmentState.STA);
        showThread.Start();
    }

    private void button2_Click(object sender, EventArgs e)
    {
        fancyPopup.Dispatcher.Invoke(new Action(delegate
        {
            fancyPopup.TextB.Text = "Doing something...";
        }));

        //Keep the main thread busy.
        Thread.Sleep(5000);

        fancyPopup.Dispatcher.Invoke(new Action(delegate
        {
            fancyPopup.TextB.Text = "Done doing something..."; 
        }));
    }

Answer 1

我已经解决了我的问题，我必须在单独的 STA 线程上初始化 notifyIcon 并使用 Application.Run 才能开始在该线程上发送窗口消息。

        var myThread = new Thread(delegate()
        {
            notifyIcon = new NotifyIcon();

            Application.Run();
        });

        myThread.SetApartmentState(ApartmentState.STA);
        myThread.Start();

然后我只需要调用通知对话框的 UI。