Question

我创建了一个特殊的textField，右侧有一个填充（我使用的是RTL语言）。它工作得很好，除了它隐藏了清除按钮的事实。我有什么想法可以在填充视图顶部显示清除按钮吗？

class PaddedTextField: UITextField {

    let padding = UIEdgeInsets(top: 0, left: 5, bottom: 0, right: 5);

    override func textRect(forBounds bounds: CGRect) -> CGRect {
        return UIEdgeInsetsInsetRect(bounds, padding)
    }

    override func placeholderRect(forBounds bounds: CGRect) -> CGRect {
        return UIEdgeInsetsInsetRect(bounds, padding)
    }

    override func editingRect(forBounds bounds: CGRect) -> CGRect {
        return UIEdgeInsetsInsetRect(bounds, padding)
    }
}

Answer 1

您无法直接访问清除按钮，但可以设置其框架和原点：

 override func clearButtonRect(forBounds bounds: CGRect) -> CGRect {
        return UIEdgeInsetsInsetRect(bounds, padding)
    }

Answer 2

只需将super.个函数添加到覆盖的函数中

private let padding = UIEdgeInsets(top: 0.5, left: 8, bottom: 0.5, right: 8)

override open func textRect(forBounds bounds: CGRect) -> CGRect {
   let bounds = super.textRect(forBounds: bounds)
   return bounds.inset(by: padding)
}

override open func placeholderRect(forBounds bounds: CGRect) -> CGRect {
   let bounds = super.placeholderRect(forBounds: bounds)
   return bounds.inset(by: padding)
}

override open func editingRect(forBounds bounds: CGRect) -> CGRect {
   let bounds = super.editingRect(forBounds: bounds)
   return bounds.inset(by: padding)
}

Swift - UITextField填充隐藏了清除按钮

2 个答案: