Ios 使用IBInspectable在UITextField上禁用剪切、复制和粘贴

请查找以下不适用于我的代码

 @IBInspectable var pasteOption: Bool = true {
        didSet {
            func canPerformAction(action: Selector, withSender sender: AnyObject) -> Bool {
                if action == "selectAll:" {
                    return pasteOption
                }
                if action == "select:" {
                    return pasteOption
                }
                if action == "cut:" {
                    return pasteOption
                }
                if action == "copy:" {
                    return pasteOption
                }
                if action == "paste:" {
                    return pasteOption
                }
                return super.canPerformAction(action, withSender: sender)
            }
        }
    }

---

我想使用

IBInspectable

禁用对我的

UITextfield

的剪切、复制和粘贴。您需要这样定义var：

@IBInspectable var pasteOption: Bool = true

override func canPerformAction(action: Selector, withSender sender: AnyObject?) -> Bool {
    if action == "selectAll:" {
        return pasteOption
    }
    if action == "select:" {
        return pasteOption
    }
    if action == "cut:" {
        return pasteOption
    }
    if action == "copy:" {
        return pasteOption
    }
    if action == "paste:" {
        return pasteOption
    }
    return super.canPerformAction(action, withSender: sender)
}

然后重写

UITextField

的

canperformation

函数，如下所示：

@IBInspectable var pasteOption: Bool = true

override func canPerformAction(action: Selector, withSender sender: AnyObject?) -> Bool {
    if action == "selectAll:" {
        return pasteOption
    }
    if action == "select:" {
        return pasteOption
    }
    if action == "cut:" {
        return pasteOption
    }
    if action == "copy:" {
        return pasteOption
    }
    if action == "paste:" {
        return pasteOption
    }
    return super.canPerformAction(action, withSender: sender)
}

---

通过执行此操作，您可以为函数中定义的特定操作返回

pasteOption

的值（在这种情况下是

selectAll

，

select

，

cut

，

copy

和

paste

）每当文本字段打开编辑菜单时。

此代码驻留在哪个类中？Seprate UITextField