如何使用swift編寫UITapGestureRecognizer的通用方法

Question

我必須爲標籤和ImageView添加tapGesture。如何爲標籤和ImageView創建通用的輕擊手勢方法？

//TapGestureHandler 
extension EditViewController : UIGestureRecognizerDelegate 
{ 
//Add Gesture on ImageView 
func addGesture() 
{ 
    //Gesture Male 
    let maleTapGesture = UITapGestureRecognizer(target: self, action: #selector(maleGestureTap)) 
    maleTapGesture.delegate = self 
    imgViewMale.addGestureRecognizer(maleTapGesture) 

    //GestureFemale 
    let FemaleTapGesture = UITapGestureRecognizer(target: self, action: #selector(femaleGestureTap)) 
    FemaleTapGesture.delegate = self 
    imgViewFemale.addGestureRecognizer(FemaleTapGesture) 

    //Gesture MaleFemale 
    let maleFeTapGesture = UITapGestureRecognizer(target: self, action: #selector(maleFeGestureTap)) 
    maleFeTapGesture.delegate = self 
    imgViewMaleFe.addGestureRecognizer(maleFeTapGesture) 
} 

//Tap Gesture Male 
func maleGestureTap() 
{ 
    imgViewMale.backgroundColor = hexStringToUIColor(hex: "#CBFFE2") 
} 

//Tap Gesture Female 
func femaleGestureTap() 
{ 
    imgViewFemale.backgroundColor = hexStringToUIColor(hex: "#CBFFE2") 
} 

//Tap Gesture MaleFemale 
func maleFeGestureTap() 
{ 
    imgViewMaleFe.backgroundColor = hexStringToUIColor(hex: "#CBFFE2") 
} 
} 

我不知道我們該怎麼寫一個通用的方法。

Answer 1

你可以做這樣的事情：

假設你有你需要附加一個自來水處理幾個對象，假設他們都符合UIView的協議：

let subviews: [Any] = [label1, label2, label3, view1, imageview1]() 
label1.tag = 1 //** add a tag to your object ** 
for v in subviews { 
    self.addTapGesture(to: v) 
} 

func tapped(_ sender: UITapGestureRecognizer) { 
    print("tapped") 
    if sender.view?.tag == 1 { 
     // *** this is your label1 view *** 
    } 
} 

func addTapGesture(to: Any?) { 
    if let v = to as? UIView { 
     let tapGesture = UITapGestureRecognizer(target: self, action: #selector(self.tapped(_:))) 
     v.addGestureRecognizer(tapGesture) 
     v.isUserInteractionEnabled = true 
    } 
} 

Answer 2

與參數定義你的目標selector(tapGestureHandler:)作爲

let tap = UITapGestureRecognizer(target: self, action: Selector("tapGestureHandler:")) 

並檢查您的組件這樣。

func tapGestureHandler(_ sender: UITapGestureRecognizer) { 

    if sender.view is UIView { 
    // sender is a UIView 
    } 
    else if sender.view is UIImageView{ 
    // sender is UIimageView 
    } 
    else{ 
    // sender is none 
    } 
} 

並確保user interaction is true。