使用故事板来屏蔽UIView并给出圆角?-UseStoryboardtomaskUIViewandgiveroundedcorners?

176  

Yes, I use that a lot but question like this was already answered many times.

是的，我经常用这个，但是像这样的问题已经被回答过很多次了。

But anyway in Interface Builder. You need to add User Defined Runtime Attributes like this:

不管怎样，在接口构建器中。您需要添加用户定义的运行时属性如下:

layer.masksToBounds Boolean YES
layer.cornerRadius Number {View's Width/2}

and enable

并使

Clips subviews

Results:

结果:

11  

You can do it in a storyboard by using user-defined properties. Select the view that you want to round and open its Identity Inspector. In the User Defined Runtime Attributes section, add the following two entries:

通过使用用户定义的属性，可以在故事板中实现。选择要循环的视图并打开它的标识检查器。在用户定义的运行时属性部分，添加以下两个条目:

• Key Path: layer.cornerRadius, Type: Number, Value: (whatever radius you want)
• 关键路径:层。角半径，类型:数字，值:(任意半径)
• Key Path: layer.masksToBounds, Type: Boolean, Value: checked
• 关键路径:层。masksToBounds，类型:布尔，值:勾选

You may have to import QuartzKit in your view's corresponding class file (if any), but I swear that I've gotten it to work without doing that. Your results may vary.

您可能需要在您的视图的相应的类文件中导入QuartzKit(如果有的话)，但是我发誓，我没有这样做就已经让它工作了。您的结果可能不同。

EDIT: Example of a dynamic radius

编辑:动态半径示例

extension UIView {

    /// The ratio (from 0.0 to 1.0, inclusive) of the view's corner radius
    /// to its width. For example, a 50% radius would be specified with
    /// `cornerRadiusRatio = 0.5`.
    @IBDesignable public var cornerRadiusRatio: CGFloat {
        get {
            return layer.cornerRadius / frame.width
        }

        set {
            // Make sure that it's between 0.0 and 1.0. If not, restrict it
            // to that range.
            let normalizedRatio = max(0.0, min(1.0, newValue))
            layer.cornerRadius = frame.width * normalizedRatio
        }
    }

}

I verified that this works in a playground.

我证实这在操场上行得通。

0  

Select view

选择视图

extension UIView {

    @IBInspectable var cornerRadiusV: CGFloat {
        get {
            return layer.cornerRadius
        }
        set {
            layer.cornerRadius = newValue
            layer.masksToBounds = newValue > 0
        }
    }

    @IBInspectable var borderWidthV: CGFloat {
        get {
            return layer.borderWidth
        }
        set {
            layer.borderWidth = newValue
        }
    }

    @IBInspectable var borderColorV: UIColor? {
        get {
            return UIColor(cgColor: layer.borderColor!)
        }
        set {
            layer.borderColor = newValue?.cgColor
        }
    }
}