swift - 描述或使用字符串来解释 UIColor

Question

尝试简化每个单元格行对象着色的实现。这就是我当前向每行中的对象添加颜色的方式:

progressViewLeft.primaryColor = Colors.Stage1

“Colors”是一个像这样设置的结构:

struct Colors {

static let Stage1     = UIColor(red: 255.0/255.0, green: 255.0/255.0, blue: 255.0/255.0, alpha: 1.0)
static let Stage2     = UIColor(red: 255.0/255.0, green: 255.0/255.0, blue: 255.0/255.0, alpha: 1.0)
}

我正在寻找一种方法来代替编写:“Colors.Stage1”并在下一个:“Colors.Stage2”，如下所示:

progress.primaryColor = String("Colors.Stage" + String(indexpath.row))

Answer 1

你可以试试

let allColors = [ UIColor(red: 255.0/255.0, green: 255.0/255.0, blue: 255.0/255.0, alpha: 1.0) ,
                  UIColor(red: 255.0/255.0, green: 255.0/255.0, blue: 255.0/255.0, alpha: 1.0)]

然后

progress.primaryColor = allColors[indexpath.row]