Create a colored version of an existing UIImage in swift. Great for coloring icons.

createColoredIconImage.swift

class Icon {

  // Create a colored version of an existing image. Great for coloring icons.
  // @param name of the image in your bundle
  // @param color of the image to return
  static func createColoredVersionOfImageNamed(name: String, color: CGColor) -> UIImage {
    let img = UIImage(named: name)!
    let rect = CGRect(origin: CGPointZero, size: img.size)
    UIGraphicsBeginImageContextWithOptions(rect.size, false, img.scale)
    let context = UIGraphicsGetCurrentContext()
    img.drawInRect(rect)
    CGContextSetFillColorWithColor(context, color)
    CGContextSetBlendMode(context, kCGBlendModeSourceAtop)
    CGContextFillRect(context, rect)
    return UIGraphicsGetImageFromCurrentImageContext()
  }
  
}