Swift - 除非长按，否则不会触发按钮的动作

Question

我在UIScrollView 中添加了一个Sign in with Apple 按钮，Apple 文档建议的方式；

let signInWithAppleButton = ASAuthorizationAppleIDButton(type: .default, style: .white)
            
signInWithAppleButton.addTarget(self, action: #selector(loginWithApple(_:)), for: .touchUpInside)
signInWithAppleButton.cornerRadius = 12
            
scrollView.addSubview(signInWithAppleButton)

问题是，按钮只响应非常长的按下而不是简单的点击。我试过把它放在UIScrollView 之外，它在那里工作！

这是我的UIScrollView 和按钮的设置；

fileprivate func setupScrollViewConstraints() {
    scrollView.translatesAutoresizingMaskIntoConstraints = false
    
    NSLayoutConstraint.activate([
        scrollView.topAnchor.constraint(equalTo: self.view.topAnchor),
        scrollView.bottomAnchor.constraint(equalTo: self.view.bottomAnchor),
        scrollView.leadingAnchor.constraint(equalTo: self.view.leadingAnchor),
        scrollView.trailingAnchor.constraint(equalTo: self.view.trailingAnchor)
    ])
}

func setupSignInWithAppleButton() -> UIControl? {
    if #available(iOS 13.0, *) {
        let signInWithAppleButton = ASAuthorizationAppleIDButton(type: .default, style: .white)
        
        signInWithAppleButton.addTarget(self, action: #selector(loginWithApple(_:)), for: .touchUpInside)
        signInWithAppleButton.cornerRadius = 12
        
        scrollView.addSubview(signInWithAppleButton)
        
        signInWithAppleButton.translatesAutoresizingMaskIntoConstraints = false
        
        NSLayoutConstraint.activate([
            signInWithAppleButton.topAnchor.constraint(equalTo: accountLabel.bottomAnchor, constant: 8),
            signInWithAppleButton.centerXAnchor.constraint(equalTo: scrollView.centerXAnchor),
            signInWithAppleButton.widthAnchor.constraint(equalToConstant: 210),
            signInWithAppleButton.heightAnchor.constraint(equalToConstant: 45)
        ])
        
        return signInWithAppleButton
    }
    
    return nil
}

知道是什么破坏了它吗？

编辑；这是我的处理程序；

@objc private func loginWithApple(_ sender: Any) {
    let appleIDProvider = ASAuthorizationAppleIDProvider()
        
    let request = appleIDProvider.createRequest()
    request.requestedScopes = [.fullName, .email]
        
    let authorizationController = ASAuthorizationController(authorizationRequests: [request])
        
    authorizationController.delegate = self
    authorizationController.presentationContextProvider = self
    authorizationController.performRequests()
}

我在里面放了一个断点，但是只有长按按钮才会激活！提醒一下，如果我将按钮放在控制器的视图中，它会按预期工作！

Answer 1

我终于想通了！！！我在滚动视图上添加了一个点击手势，所以我可以在点击时关闭键盘！由于某种原因，它只破坏了 Apple 的登录按钮触摸事件！

Answer 2

我尝试将 signInWithAppleButton 添加到 UIScorllview，如下所示：

@objc func loginWithApple(_ sender: Any) {
    print("loginWithApple")
}

fileprivate func setupScrollViewConstraints() {
    scrollView.translatesAutoresizingMaskIntoConstraints = false

    NSLayoutConstraint.activate([
        scrollView.topAnchor.constraint(equalTo: self.view.topAnchor),
        scrollView.bottomAnchor.constraint(equalTo: self.view.bottomAnchor),
        scrollView.leadingAnchor.constraint(equalTo: self.view.leadingAnchor),
        scrollView.trailingAnchor.constraint(equalTo: self.view.trailingAnchor)
    ])
}

func setupSignInWithAppleButton() -> UIControl? {
    if #available(iOS 13.0, *) {
        let signInWithAppleButton = ASAuthorizationAppleIDButton(type: .default, style: .white)

        signInWithAppleButton.addTarget(self, action: #selector(loginWithApple(_:)), for: .touchUpInside)
        signInWithAppleButton.cornerRadius = 12

        scrollView.addSubview(signInWithAppleButton)

        signInWithAppleButton.translatesAutoresizingMaskIntoConstraints = false

        NSLayoutConstraint.activate([
            signInWithAppleButton.centerYAnchor.constraint(equalTo: scrollView.centerYAnchor),
            signInWithAppleButton.centerXAnchor.constraint(equalTo: scrollView.centerXAnchor),
            signInWithAppleButton.widthAnchor.constraint(equalToConstant: 210),
            signInWithAppleButton.heightAnchor.constraint(equalToConstant: 45)
        ])

        return signInWithAppleButton
    }

    return nil
 }

我没有遇到任何问题，当点击按钮时，会立即为我打印“loginWithApple”。该按钮的行为与任何其他 UIButton 一样。我没有发现任何问题。

你在 loginWithApple 中做什么？使用您提供的最少代码，我预计 loginWithApple 函数中可能会出现一些问题，这可能会延迟您的预期。

更新： 下面是行为。注意UIScrollView里面的按钮。在设备上也没有延迟。