如何从UIActivityViewController中排除除%1以外的所有项？

// 创建要分享的内容
let textToShare = "Hello, World!"
let objectsToShare = [textToShare]

// 创建临时的UIActivityViewController对象，用于获取当前设备上支持的所有活动类型的标识符
let tempActivityViewController = UIActivityViewController(activityItems: objectsToShare, applicationActivities: nil)

// 获取当前设备上支持的所有活动类型的标识符
if let activityTypes = tempActivityViewController.excludedActivityTypes {
    var excludedActivityTypes = [UIActivity.ActivityType]()

    // 从获取到的活动类型中排除%1以外的所有项，并将其添加到排除列表中
    for activityType in activityTypes {
        if !activityType.rawValue.contains("%1") {
            excludedActivityTypes.append(activityType)
        }
    }

    // 创建UIActivityViewController对象，并设置要分享的内容和排除的活动类型
    let activityViewController = UIActivityViewController(activityItems: objectsToShare, applicationActivities: nil)
    activityViewController.excludedActivityTypes = excludedActivityTypes

    // 展示UIActivityViewController
    if let viewController = UIApplication.shared.keyWindow?.rootViewController {
        viewController.present(activityViewController, animated: true, completion: nil)
    }
}