如何使用Xamarin表单中的按钮打开安装在我手机上的Slack应用程序？

using Xamarin.Forms;

namespace OpenSlackApp
{
    public class App : Application
    {
        public App()
        {
            MainPage = new ContentPage
            {
                Content = new StackLayout
                {
                    VerticalOptions = LayoutOptions.Center,
                    Children = {
                        new Button {
                            Text = "Open Slack",
                            Command = new Command(() => OpenSlack())
                        }
                    }
                }
            };
        }

        private void OpenSlack()
        {
            // Slack的URI方案通常是 "slack://"
            // 注意：确保你的Slack应用支持这种打开方式
            Device.OpenUri(new Uri("slack://"));
        }
    }
}