Question

我有一个包含UIView的xib TextField。当父UIView被触及时，我希望我的TextField获得焦点。使用 Swift 3 + 进行更新的正确方法是什么？是否有可能完全从故事板中做到这一点？ （我目前正在使用Xcode 9测试版，但欢迎提前解决方案）

这是我的代码：

import UIKit

@IBDesignable
open class MinimalEditView: UIView, UITextFieldDelegate {

    @IBOutlet var textField: UITextField!

    @IBInspectable
    public var cornerRadius: CGFloat = 2.0 {
        didSet {
            self.layer.cornerRadius = self.cornerRadius
        }
    }

    @IBInspectable
    public var borderWidth: CGFloat = 2.0 {
        didSet {
            self.layer.borderWidth = self.borderWidth
        }
    }

    @IBInspectable
    public var borderColor: UIColor = UIColor.intactBeigeLight {
        didSet {
            self.layer.borderColor = self.borderColor.cgColor
        }
    }

    public func textFieldShouldBeginEditing(_ textField: UITextField) -> Bool {
        self.textField.becomeFirstResponder()
        return true
    }

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

    }
    public required init?(coder aDecoder: NSCoder) {
        super.init(coder: aDecoder)
    }

}

Answer 1

首先，在viewDidLoad添加手势识别器以检测视图上的点按操作。视图应放在文本字段的顶部

let tapGestureRecognizer = UITapGestureRecognizer(target: self, action: #selector(viewTapped))
view.isUserInteractionEnabled = true
view.addGestureRecognizer(tapGestureRecognizer)

然后，只要点击您的视图，就将焦点指定给文本字段

func viewTapped()
{
    self.textField.becomeFirstResponder()
}

Answer 2

您可以在父视图中添加UITapGestureRecognizer。处理点按手势，就像点击视图时一样，将焦点指定给文本字段。

在你的awakefromnib中添加UITapGestureRecognizer为

let tap = UITapGestureRecognizer(target: self, action: #selector(viewTapped))
yourParentView.isUserInteractionEnabled = true
yourParentView.addGestureRecognizer(tap)

处理点按

func handleTap(_ gesture: UITapGestureRecognizer){
{
    self.yourTextField.becomeFirstResponder()
}

将点击事件从UIView转发到内部TextField

2 个答案: