UIButton background color for highlighted/selected state issue

Question

I\'ve a UIButton and I\'ve created an extension to add background color for different state.

I\'m using the following code:

Answer 1

Update Swift 4

extension UIButton {

    func setBackgroundColor(color: UIColor, forState: UIControlState) {

        UIGraphicsBeginImageContext(CGSize(width: 1, height: 1))
        UIGraphicsGetCurrentContext()!.setFillColor(color.cgColor)
        UIGraphicsGetCurrentContext()!.fill(CGRect(x: 0, y: 0, width: 1, height: 1))
        let colorImage = UIGraphicsGetImageFromCurrentImageContext()
        UIGraphicsEndImageContext()

        self.setBackgroundImage(colorImage, for: forState)
    }

}

Event Button Action Show Touch On Highlight