在Swift中的绘图类中设置自定义RGB颜色

Question

In the below simplified drawing function, I am able to set the alpha of a drawing stroke. 在下面的简化绘图功能中，我可以设置绘图笔触的Alpha。

I have a custom color with RGB values, for example Red = 0.25, Green = 0.5, Blue = 0.75. 我有一个具有RGB值的自定义颜色，例如Red = 0.25，Green = 0.5，Blue = 0.75。

How do I set a custom RGB stroke color in the drawing function similar to setting the alpha? 如何在绘图功能中设置自定义RGB笔触颜色，类似于设置alpha？

Is it also possible to set a stroke color together with setting the stroke alpha in a single statement? 是否可以在单个语句中同时设置笔触颜色和设置笔触alpha？

override func drawRect(rect: CGRect) {

strokeColor.colorWithAlphaComponent(0.5).setStroke()
path?.stroke()

}

Answer 1

If you want to set the color try this: 如果要设置颜色，请尝试以下操作：

var Color = UIColor(red: 200.0/255.0, green: 16.0/255.0, blue: 46.0/255.0, alpha: 1.0)

also a very useful tool/ website for converting the colors into useful Swift code: 也是一个非常有用的工具/网站，用于将颜色转换为有用的Swift代码：

Edit: 编辑：

self.button.setTitleColor(UIColor(red:0.96, green:0.28, blue:0.28, alpha:1.0), forState: .Normal)

or if you want a cleaner solution: 或者，如果您需要更清洁的解决方案：

var myColor = UIColor(red:0.96, green:0.28, blue:0.28, alpha:1.0)
self.button.setTitleColor(myColor, forState: .Normal)