UIInputViewController（自定義鍵盤） - UIButton操作未被觸發 - 爲什麼，爲什麼？

Question

我敢肯定，這是非常容易的，但我無法得到一個簡單的例子，用UIInputViewController工作。我有兩個按鈕，它們出現，但敲擊它們沒有效果。在谷歌搜索中，我發現了幾個完全如此的問題 - 沒有答案！我觀看了關於這個主題的WWDC 2017視頻，但是他們對這一點有所掩蓋，並且他們的代碼有效，但我不明白爲什麼我的代碼不會。

代碼（只是概念驗證）在下面，任何幫助將非常感激。

邁克爾

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

刪除CustomView班組長。我只是沒這個工作得很好，在我的身邊：

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?") 
}