NSUserActivity deleteAllSavedUserActivities不起作用

如何解决NSUserActivity deleteAllSavedUserActivities不起作用

我的情况非常简单：我使用下一个函数

private func launchActivity(_ id: String,title: String,invocPhrase: String) {
        userActivity = NSUserActivity(activityType: "Open_bank")
        userActivity?.title = title
        userActivity?.userInfo = ["id": id]
        if #available(iOS 12.0,*) {
            userActivity?.suggestedInvocationPhrase = invocPhrase
            userActivity?.isEligibleForPrediction = true
            userActivity?.persistentIdentifier = id
        } else {
            //Can't actually invoke this block
        }
    }

创建一个特定的userActivity，然后将其添加到Siri，以便invocPhrase可以调用它。这是执行此操作的功能。

func presentAddOpenBankToSiriVC() {
        guard let userActivity = self.userActivity else { return }
        if #available(iOS 12.0,*) {
            let shortcut = INShortcut(userActivity: userActivity)
            let viewController = INUIAddVoiceShortcutViewController(shortcut: shortcut)
            viewController.modalPresentationStyle = .formSheet
            viewController.delegate = self
            present(viewController,animated: true,completion: nil)
        } else {
            //Can't actually invoke this block
        }
    }

稍后我尝试删除它（以及所有其他用户活动）

NSUserActivity.deleteAllSavedUserActivities {}

与Apple文档中的内容相反，它不会删除任何用户活动 https://developer.apple.com/documentation/sirikit/deleting_donated_shortcuts

实际上，起初我尝试过一种方法

 deleteSavedUserActivities(withPersistentIdentifiers:completionHandler:)

使用userActivity的persistentIdentifier，但显然也无济于事。

我不知道为什么它拒绝让步，但是会感谢您的帮助或提示