如何在SwiftUI的ScrollView中集成UIActivityViewController？

ScrollView {
    // 添加需要展示的内容
}

Button(action: {
    showShareSheet()
}) {
    Text("分享")
}

func showShareSheet() {
    let activityItems: [Any] = ["要分享的内容"]
    let activityViewController = UIActivityViewController(activityItems: activityItems, applicationActivities: nil)
    
    // 设置UIActivityViewController的配置，例如排除特定的分享选项
    activityViewController.excludedActivityTypes = [UIActivity.ActivityType.airDrop]
    
    // 在iPad上以弹出窗口的形式展示UIActivityViewController
    if let popoverController = activityViewController.popoverPresentationController {
        popoverController.sourceView = self
        popoverController.sourceRect = CGRect(x: 0, y: 0, width: 100, height: 100)
    }
    
    // 展示UIActivityViewController
    UIApplication.shared.windows.first?.rootViewController?.present(activityViewController, animated: true, completion: nil)
}