CGPoint、CGRect等有什么简写的方法吗? [英] Is there any shorthand way to write CGPoint, CGRect, etc?

问题描述

在 Swift 3.0 中，我们现在像这样声明 CGPoints:

With Swift 3.0, we now declare CGPoints like so:

CGPoint(x: 1.0, y: 0.0)

这是，呃...有点冗长.当你编写一个以 CGPoint 作为参数的函数时，事情会很快变得丑陋:

This is, uh...kinda verbose. When you write a function that takes a CGPoint as an argument, things get ugly pretty fast:

myObject.callMyFunc(someVar: 1, point1: CGPoint(x: 1.0, y: 0.0), point2: CGPoint(x: 1.0, y: 2.0))

像 CGPoint 和 CGRect 这样的结构有简写吗?

Is there any shorthand for structs like CGPoint and CGRect?

推荐答案

正如评论中已经建议的那样，您可以创建自己的扩展.

As already suggested in the comments you can create your own extension.

您可以添加一个接受 2 个 CGFloat(s) 并且不需要外部参数名称的初始化程序

You can add an initializer that accepts 2 CGFloat(s) and doesn't require external param names

extension CGPoint {
    init(_ x: CGFloat, _ y: CGFloat) {
        self.x = x
        self.y = y
    }
}

let point = CGPoint(1, 2)

中缀运算符

您还可以定义中缀运算符

Infix Operator

You can also define your infix operator

infix operator ° {}
func °(x: CGFloat, y: CGFloat) -> CGPoint {
    return CGPoint(x: x, y: y)
}

let point = 1.1 ° 1.1

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