UIInputViewController（自定义键盘） - UIButton操作未被触发 - 为什么，为什么？

Question

我敢肯定，这是非常容易的，但我无法得到一个简单的例子，用UIInputViewController工作。我有两个按钮，它们出现，但敲击它们没有效果。在谷歌搜索中，我发现了几个完全如此的问题 - 没有答案！我观看了关于这个主题的WWDC 2017视频，但是他们对这一点有所掩盖，并且他们的代码有效，但我不明白为什么我的代码不会。

代码（只是概念验证）在下面，任何帮助将非常感激。

迈克尔

class ViewController: UIViewController { 

    @IBOutlet weak var testTF: UITextField! 

    override func viewDidLoad() { 
     super.viewDidLoad()  
     testTF.inputView = CustomView(nibName:nil,bundle:nil).inputView 
    } 

    override func didReceiveMemoryWarning() { 
     super.didReceiveMemoryWarning() 
    } 


} 
class MyButton:UIButton { 

    init(frame: CGRect, title:String) { 
     super.init(frame: frame) 
     backgroundColor = UIColor.lightGray 
     isUserInteractionEnabled = true 
     setTitle(title, for: .normal) 
    } 

    required init?(coder aDecoder: NSCoder) { 
     fatalError("init(coder:) has not been implemented") 
    } 


} 
class CustomView: UIInputViewController { 

    override init(nibName:String?, bundle:Bundle?) { 
     super.init(nibName:nibName, bundle:bundle) 
     let keyboard:UIView = UIView(frame: CGRect(x:0.0,y:0.0,width:768.0, height:240.0)) 
     keyboard.backgroundColor = UIColor.red 

     let zeroKey:MyButton = MyButton(frame: CGRect(x:0.0,y:0.0,width:45.0,height:50.0), title:"0") 
     zeroKey.addTarget(self, action: #selector(clickMe(sender:)), for: .allEvents) 
     keyboard.addSubview(zeroKey) 

     let oneKey:UIButton = MyButton(frame: CGRect(x:50.0,y:0.0,width:45.0,height:50.0), title:"1") 
     oneKey.addTarget(self, action: #selector(clickMe(sender:)), for: .allEvents) 
     keyboard.addSubview(oneKey) 

     self.inputView?.backgroundColor = UIColor.blue 
     self.inputView?.frame = CGRect(x:0.0,y:0.0,width:UIScreen.main.bounds.width, height:240.0) 
     self.inputView?.isUserInteractionEnabled = true 
     self.inputView?.addSubview(keyboard) 
    } 

    required init?(coder aDecoder: NSCoder) { 
     fatalError("init(coder:) has not been implemented") 
    } 

    @objc func clickMe(sender:Any) { 
     print("hey, why am I not being called?") 
    } 
} 

Answer 1

删除CustomView班组长。我只是没这个工作得很好，在我的身边：

override func viewDidLoad() { 
    super.viewDidLoad() 
    let keyboard:UIView = UIView(frame: CGRect(x:0.0,y:0.0,width:768.0, height:240.0)) 
    keyboard.backgroundColor = UIColor.red 

    let zeroKey:MyButton = MyButton(frame: CGRect(x:0.0,y:0.0,width:45.0,height:50.0), title:"0") 
    zeroKey.addTarget(self, action: #selector(clickMe(sender:)), for: .allEvents) 
    keyboard.addSubview(zeroKey) 

    let oneKey:UIButton = MyButton(frame: CGRect(x:50.0,y:0.0,width:45.0,height:50.0), title:"1") 
    oneKey.addTarget(self, action: #selector(clickMe(sender:)), for: .touchUpInside) 
    keyboard.addSubview(oneKey) 
    testTF.inputView = keyboard 
} 
@objc func clickMe(sender:Any) { 
    print("hey, why am I not being called?") 
}