ios - 在 topViewController 中添加时，UIView 手势识别器不起作用

Question

我正在尝试在最顶层的 ViewController 上添加一个 View 。它确实有效，但是当我尝试添加点击手势识别器时，该操作不起作用。这是我的代码，我使用共享实例调用此类。难道是因为对象没有被保留？

class QFNotificationView: NSObject {

static let shared = QFNotificationView()

internal let keyWindow = UIApplication.shared.keyWindow!

private var titleLabel: UILabel = {
    let windowFrame = UIApplication.shared.keyWindow!.bounds
    let label = UILabel(frame: CGRect(x: 12, y: 15, width: windowFrame.width - 24, height: 20))
    label.font = UIFont(name: "WorkSans-SemiBold", size: 18)
    label.textColor = .darkishPurple
    return label
}()

private var descriptionLabel: UILabel = {
    let windowFrame = UIApplication.shared.keyWindow!.bounds
    let label = UILabel(frame: CGRect(x: 12, y: 35, width: windowFrame.width - 24, height: 40))
    label.font = UIFont(name: "WorkSans-Regular", size: 14)
    label.numberOfLines = 2
    label.textColor = .darkLavender
    return label
}()

private var notificationView: UIView = {
    let windowFrame = UIApplication.shared.keyWindow!.bounds
    let view = UIView(frame: CGRect(x: 0, y: -82, width: windowFrame.width, height: 82))
    view.backgroundColor = .white
    view.isUserInteractionEnabled = true
    return view
}()

var message: Message?

func show(message: Message) {
    self.message = message
    titleLabel.text = "Message"
    descriptionLabel.text = message.messageText
    notificationView.addSubview(titleLabel)
    notificationView.addSubview(descriptionLabel)
    if let topVC = UIApplication.getTopMostViewController() {
        topVC.view.addSubview(notificationView)
        notificationView.addGestureRecognizer(UITapGestureRecognizer(target: self, action: #selector(didTap)))
        animateNotification()
    }

}

private func animateNotification() {
    UIView.animate(withDuration: 0.5, delay: 0, options: .curveEaseInOut, animations: {
        self.notificationView.frame = CGRect(x: 0, y: 0, width: self.keyWindow.bounds.width, height: 82)
    }) { (_) in
        UIView.animate(withDuration: 0.5, delay: 4, options: .curveEaseInOut, animations: {
            self.notificationView.frame = CGRect(x: 0, y: -82, width: self.keyWindow.bounds.width, height: 82)
        }) { (_) in
            self.notificationView.removeFromSuperview()
        }
    }
}

@objc func didTap() {
    print("CLICKEDD")
    if let topVC = UIApplication.getTopMostViewController() {
       let dest = ChatViewController.instantiateFromAppStoryboard(appStoryboard: .Main)
        dest.serviceRequestID = message?.serviceRequest
        topVC.navigationController?.pushViewController(dest, animated: true)
    }

}
}

Answer 1

我刚刚发现了问题。当 View 处于动画状态时，您无法与其进行交互，事实就是如此。所以我只是创建了一个容器 View 来保存通知卡并将手势识别器放在容器上而不是正在动画的 View 上。