Question

我正在尝试使用以下代码修改Swift中UIButton的颜色：

struct ColorWheel {
    let colorsArray = [
        UIColor(red: 90/255.0, green: 187/255.0, blue: 181/255.0, alpha: 1.0), //teal color
        UIColor(red: 222/255.0, green: 171/255.0, blue: 66/255.0, alpha: 1.0), //yellow color
        UIColor(red: 223/255.0, green: 86/255.0, blue: 94/255.0, alpha: 1.0), //red color
        UIColor(red: 239/255.0, green: 130/255.0, blue: 100/255.0, alpha: 1.0), //orange color
        UIColor(red: 77/255.0, green: 75/255.0, blue: 82/255.0, alpha: 1.0), //dark color
        UIColor(red: 105/255.0, green: 94/255.0, blue: 133/255.0, alpha: 1.0), //purple color
        UIColor(red: 85/255.0, green: 176/255.0, blue: 112/255.0, alpha: 1.0), //green color
    ]

    func randomColor() -> UIColor {
        var unsignedArrayCount = UInt32(colorsArray.count)
        var unsignedRandomNumber = arc4random_uniform(unsignedArrayCount)
        var randomNumber = Int(unsignedRandomNumber)

        return colorsArray[randomNumber]
    }
}
var colorWheel = ColorWheel()
var randomColor = colorWheel.randomColor()
view.backgroundColor = randomColor
myButton.setTitleColor(randomColor, forState: .Normal)

此代码在更改背景颜色时可以正常工作，但是当我尝试使用setTitleColor方法时，我收到以下错误： (UIButton) -> 0' does not have a member named 'setTitleColor'

（UIButton） - ＆gt; 0'没有名为'setTitleColor'的成员

0 个答案: