UIView圆角 - 斯威夫特2.0？ [英] UIView rounded Corner - Swift 2.0?

问题描述

我试图将一些项目更新为Swift 2.0。我有一个视图，左上角有一个圆角。一切都在Swift< 1.2，但现在，再也没有圆角了。

Ill try to update some projects to Swift 2.0. I´ve got a View, with a rounded corner top left. Everything works fine in Swift < 1.2, but now, there is no rounded corner anymore.

没有警告，没有错误，没有圆角。

No Warnings, no Errors, just no rounded corner.

这是它在Swift< 1.2。

This is how it works in Swift < 1.2.

    let maskPath = UIBezierPath(roundedRect: contentView.bounds,byRoundingCorners: .TopLeft, cornerRadii: CGSize(width: 10.0, height: 10.0))
    let maskLayer = CAShapeLayer(layer: maskPath)
    maskLayer.frame = contentView.bounds
    maskLayer.path = maskPath.CGPath
    contentView.layer.mask = maskLayer

任何人都知道这里有什么问题吗？我没有在文档中找到任何更改。

Anyone know whats wrong here? Ill dont find any changes in the documentation.

推荐答案

Swift 2.0-2.1中的这段代码没有任何问题。您确定此代码段之前或之后没有其他内容影响您的观点吗？

There's nothing wrong with this piece of code in Swift 2.0–2.1. Are you sure there isn't something else before or after this code snippet, that's affecting your view?

这是一个快速的Playground，包含您的代码：

Here's a quick Playground with your code:

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