Image中设置圆角的第三个参数scale并没有被使用啊？

[seekcx]

这是Image.swift的第341-379行

// MARK: - Image Transforming
extension Kingfisher where Base: Image {
    // MARK: - Round Corner
    /// Create a round corner image based on `self`.
    ///
    /// - parameter radius: The round corner radius of creating image.
    /// - parameter size:   The target size of creating image.
    /// - parameter scale:  The image scale of creating image.
    ///
    /// - returns: An image with round corner of `self`.
    ///
    /// - Note: This method only works for CG-based image.
    public func image(withRoundRadius radius: CGFloat, fit size: CGSize, scale: CGFloat) -> Image {
        
        guard let cgImage = cgImage else {
            assertionFailure("[Kingfisher] Round corder image only works for CG-based image.")
            return base
        }
        
        let rect = CGRect(origin: CGPoint(x: 0, y: 0), size: size)
        return draw(cgImage: cgImage, to: size) {
            #if os(macOS)
                let path = NSBezierPath(roundedRect: rect, xRadius: radius, yRadius: radius)
                path.windingRule = .evenOddWindingRule
                path.addClip()
                base.draw(in: rect)
            #else
                guard let context = UIGraphicsGetCurrentContext() else {
                    assertionFailure("[Kingfisher] Failed to create CG context for image.")
                    return
                }
                let path = UIBezierPath(roundedRect: rect, byRoundingCorners: .allCorners, cornerRadii: CGSize(width: radius, height: radius)).cgPath
                context.addPath(path)
                context.clip()
                base.draw(in: rect)
            #endif
        }
    }
}

代码中这个scale参数并没有被使用到。

[onevcat]

Let's remove it!