手势识别器不起作用。执行下方元素的操作 - SWIFT

Posted 2023-03-13

【中文标题】手势识别器不起作用。执行下方元素的操作 - SWIFT

【英文标题】：Gesture Recognizer does not work. The action of the element that is underneath is performed - SWIFT

【发布时间】：2019-07-16 09:55:11

【问题描述】：

手势识别器不起作用。

执行下面元素的动作。

我将 UIView 添加到 TabBarController。

如果我点击创建的 UIView，它下面的元素的动作就会被执行。

class func createSpeechView(tabBar: UITabBarController)
    

        let speech = Bundle.main.loadNibNamed("Speech", owner: Bundle.main, options: nil)![0] as! SpeechView

        tabBar.tabBar.addSubview(speech)
        speech.translatesAutoresizingMaskIntoConstraints = false

        speech.centerXAnchor.constraint(equalTo: tabBar.tabBar.centerXAnchor).isActive = true
        speech.topAnchor.constraint(equalTo: tabBar.tabBar.topAnchor, constant: -(height + 10)).isActive = true
        speech.widthAnchor.constraint(equalTo: tabBar.tabBar.widthAnchor, multiplier: 1.0, constant: -30).isActive = true
        speech.heightAnchor.constraint(equalToConstant: height).isActive = true

        speech.isUserInteractionEnabled = true
        speech.addGestureRecognizer(UIGestureRecognizer(target: tabBar, action: #selector(tapGesture)))

    

    @objc class func tapGesture()
    
        print("tap")
    

例子：

【问题讨论】：

使用 UITapGestureRecognizer

【参考方案1】：

替换

speech.addGestureRecognizer(UIGestureRecognizer(target: tabBar, action: #selector(tapGesture)))

与

speech.addGestureRecognizer(UITapGestureRecognizer(target: tabBar, action: #selector(tapGesture)))