Swift onclick 文本字段图像

Question

我的 Swift 代码中有一个文本字段

let PassINP: UITextField = {
    let textField = UITextField()

    textField.rightViewMode = .always
    var imageR = UIImageView(frame: CGRect(x:7,y:4,width:24,height:27))
    imageR.image = #imageLiteral(resourceName: "eye")
    var paddingR = UIView(frame: CGRect(x: 0, y: 0, width:40, height: 32))
    paddingR.addSubview(imageR)
    textField.rightView = paddingR

    textField.isSecureTextEntry = true
    return textField
}()

我想在单击 rightView 时调用一个函数。我怎样才能实现这一点？
我尝试添加此代码

    let tapGesture = UITapGestureRecognizer(target: self, action: #selector(ViewController.rightViewTapped))
    paddingR.addGestureRecognizer(tapGesture)

但它不起作用

Answer 1

为此，您需要将 TapGesture 添加到 UITextField 的 rightView。

//Add UITapGestureRecognizer to your PassINP's rightView `viewDidLoad`
let tapGesture = UITapGestureRecognizer(target: self, action: #selector(favoriteButtonPressed))
PassINP.rightView?.addGestureRecognizer(tapGesture)

现在添加 rightViewTapped 方法来处理 rightView 上的点击

func rightViewTapped(_ gesture: UITapGestureRecognizer) {
    print("rightViewTapped")
}