点击图像时显示工具栏 SWIFT

Question

我有一个带有图标的文本字段：

我可以在用户点击文本字段时显示工具栏。但我需要对图标做同样的事情。我尝试使用手势 rezognizer，但无法显示工具栏。有什么问题吗？

func createToolbar() {
        
        toolBar.sizeToFit()
    
        let spaceButton = UIBarButtonItem(barButtonSystemItem: .flexibleSpace, target: nil, action: nil)
        let tamamButton = UIBarButtonItem(title: NSLocalizedString("done", comment: ""), style: .plain, target: self, action: #selector(loadNewPriceAndReload))
        
        toolBar.setItems([spaceButton,tamamButton], animated: false)
        
        toolBar.isUserInteractionEnabled = true
        pickerTextField.inputAccessoryView = toolBar
        
    }

 func createPickerView() {
        
        
        pickerView.delegate = self
        pickerView.dataSource = self
        pickerView.backgroundColor = #colorLiteral(red: 0.1834549492, green: 0.1834549492, blue: 0.1834549492, alpha: 1)
        pickerView.tintColor = .white
        
        pickerTextField.inputView = pickerView
        
        
    }

我尝试在点击图标时调用函数，但它不起作用。

这是将图标放在文本字段右侧的扩展

extension UITextField {
    func setIcon(_ image: UIImage,tap:UIGestureRecognizer) {
   let iconView = UIImageView(frame:
                  CGRect(x: 7, y: 11, width: 15, height: 10))
    iconView.image = image
       
    
        iconView.isUserInteractionEnabled = true
         
        iconView.addGestureRecognizer(tap)
    
        
    let iconContainerView: UIView = UIView(frame:
                  CGRect(x: -50, y: 0, width: 30, height: 32))
    
        
        
    iconContainerView.layer.cornerRadius = 3
    iconContainerView.layer.maskedCorners = [.layerMaxXMinYCorner, .layerMaxXMaxYCorner]
    
    iconContainerView.addSubview(iconView)
    iconContainerView.backgroundColor = #colorLiteral(red: 0.04554035515, green: 0.5175096393, blue: 0.7420636415, alpha: 1)
    
   rightView = iconContainerView
   rightViewMode = .always
}
    
}

enter image description here

Answer 1

为了显示 pickerView 是由于 textField 还是其他任何原因，我总是倾向于采用这种方法：

 let picker = UIPickerView()
 picker.translatesAutoresizingMaskIntoConstraints = false
 view.addSubview(picker)

 picker.leadingAnchor.constraint(equalTo:   view.safeAreaLayoutGuide.leadingAnchor).isActive = true
 picker.trailingAnchor.constraint(equalTo: view.safeAreaLayoutGuide.trailingAnchor).isActive = true
 picker.bottomAnchor.constraint(equalTo: view.safeAreaLayoutGuide.bottomAnchor).isActive = true

点击图像时显示工具栏 SWIFT

Show toolbar when image is tapped SWIFT

uitoolbar

ios

uitapgesturerecognizer

swift