如何將操作添加到子視圖屬性Swift？

我是比較新的雨燕，我想了一系列的動作添加到我的自定義按鈕UIView如何將操作添加到子視圖屬性Swift？

下面的代碼，但是當過我按下按鈕，我得到這個錯誤。

請告訴我建模的最佳做法。

class CameraView: UIView { 

    var cameraButton : UIButton? 

    convenience init() { 
     self.init(frame: CGRectZero) 
     self.backgroundColor = UIColor.clearColor() 

     cameraButton = UIButton() 

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

    override init(frame: CGRect) { 
     super.init(frame: frame) 
    } 


    func setButton(button : UIButton){ 
     self.cameraButton = button 
    } 


    func setUpMyView(){ 
     self.cameraButton = UIButton() 
     self.cameraButton?.layer.cornerRadius = 30 
     self.cameraButton?.layer.borderWidth = 5 
     self.cameraButton?.backgroundColor = UIColor.clearColor() 
     self.cameraButton?.layer.borderColor = UIColor.whiteColor().CGColor 

     self.addSubview(cameraButton!) 
    } 

} 


ViewController.swift 


import UIKit 

class ViewController: UIViewController { 

    var cameraView : CameraView? 

    override func viewDidLoad() { 
     super.viewDidLoad() 

     cameraView = CameraView() 

     cameraView?.cameraButton?.addTarget(self, action: "pressed", forControlEvents: .TouchUpInside) 

     self.view = cameraView 

    } 

    override func didReceiveMemoryWarning() { 
     super.didReceiveMemoryWarning() 
     // Dispose of any resources that can be recreated. 
    } 


    func pressed(sender : AnyObject!){ 
     print("Button Pressed") 
     let alert = UIAlertController(title: "Alert", message: "Another Alert", preferredStyle: .Alert) 
     let action = UIAlertAction(title: "Ok", style: .Default, handler: nil) 
     alert.addAction(action) 

     self.presentViewController(alert, animated: true , completion: nil) 
    } 

}

錯誤

 
2016-01-16 14:00:42.023 TPProject[4194:1442964] -[TPProject.ViewController pressed]: unrecognized selector sent to instance 0x125655a30 
2016-01-16 14:00:42.028 TPProject[4194:1442964] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[TPProject.ViewController pressed]: unrecognized selector sent to instance 0x125655a30' 
*** First throw call stack: 
(0x183d39900 0x1833a7f80 0x183d4061c 0x183d3d5b8 0x183c4168c 0x188a63e50 0x188a63dcc 0x188a4ba88 0x188a636e4 0x188a63314 0x188a5be30 0x188a2c4cc 0x188a2a794 0x183cf0efc 0x183cf0990 0x183cee690 0x183c1d680 0x18512c088 0x188a94d90 0x1000adf64 0x1837be8b8) 
libc++abi.dylib: terminating with uncaught exception of type NSException

來源

2016-01-16 unwosu

我想出瞭解決方案。我不得不添加一個：從這個線行動

cameraView?.cameraButton?.addTarget(self, action: "pressed", forControlEvents: .TouchUpInside)

到

cameraView?.cameraButton?.addTarget(self, action: "pressed:", forControlEvents: .TouchUpInside)

來源

2016-01-16 14:26:56 unwosu

在一個側面說明，沒有需要繼承的UIView了這一點 - 這裏看看HTTPS： //developer.apple.com/library/ios/documentation/UIKit/Reference/UIView_Class/。你不重寫任何UIView或UIButton的方法，所以你只需在你的ViewController中創建一個UIButton，並在ViewDidLoad（）或LoadView（）中配置它。如果你要重用按鈕的外觀，你可以在UIButtonExtension.swift文件中爲UIButton創建一個新的方法 - 更多https://developer.apple.com/library/ios/documentation/Swift/Conceptual/ Swift_Programming_Language/Extensions.html。 – dsieczko

如何將操作添加到子視圖屬性Swift？

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