macos - 以编程方式快速设置 NSButton 的颜色

Question

我使用这段代码以编程方式生成一些 NSButtons:

for i in 1...height {
        for j in 1...width {
            var but = NSButton(frame: NSRect(x: x, y: y + 78, width: 30, height: 30))
            but.tag = k
            but.title = ""
            but.action = Selector("buttonPressed:")
            but.target = self
            but.bezelStyle = NSBezelStyle(rawValue: 6)!
            but.layer?.backgroundColor = NSColor.blackColor().CGColor

            var ges = NSClickGestureRecognizer(target: self, action: Selector("addFlag:"))
            ges.buttonMask = 0x2
            ges.numberOfClicksRequired = 1
            but.addGestureRecognizer(ges)

            ar.append(but)
            self.view.addSubview(but)
            x += 30
            k++
        }
        y += 30
        x = 0
    }

而且我需要将所有按钮的背景颜色设置为灰色或黑色(随机)。我不知道如何获取或设置 NSButton 背景色。我对 swift 编程还很陌生，我也不太了解 obj-c，所以如果你能用 swift 编写它，我将非常感激!

Answer 1

我正在用这段代码来做

final class MyButton: NSButton {
    override func awakeFromNib() {
        let layer = CALayer()
        layer.backgroundColor = CGColorCreateGenericRGB(59.0/255, 52.0/255.0, 152.0/255.0, 1.0)
        self.wantsLayer = true
        self.layer = layer
    }
}