How to change the highlighted color of a UIButton? [duplicate]

Answer 1

For Swift

import UIKit

extension UIImage {

func imageWithAlphaComponent(alpha: CGFloat) -> UIImage {
    UIGraphicsBeginImageContextWithOptions(self.size, false, 0)

    let ctx = UIGraphicsGetCurrentContext()
    let area = CGRect(x: 0, y: 0, width: self.size.width, height: self.size.height)

    CGContextScaleCTM(ctx, 1, -1)
    CGContextTranslateCTM(ctx, 0, -area.size.height)

    CGContextSetBlendMode(ctx, CGBlendMode.Multiply)

    CGContextSetAlpha(ctx, alpha)

    CGContextDrawImage(ctx, area, self.CGImage)

    let newImage = UIGraphicsGetImageFromCurrentImageContext()

    UIGraphicsEndImageContext()

    return newImage
}
}

Write

button.setImage(image.imageWithAlphaComponent(0.65), forState: .Highlighted)

https://gist.github.com/yukitoto/e8aa420e20be7ab5d64b71e96ecd61f1

Answer 2

In Swift:

import UIKit

class CustomUIButtonForUIToolbar: UIButton {

    // Only override drawRect: if you perform custom drawing.
    // An empty implementation adversely affects performance during animation.
    override func drawRect(rect: CGRect) {
        // Drawing code
        super.drawRect(rect)

        self.layer.borderColor = UIColor.blueColor().CGColor
        self.layer.borderWidth = 1.0
        self.layer.cornerRadius = 5.0
        self.clipsToBounds = true
        self.setTitleColor(UIColor.blueColor(), forState: UIControlState.Normal)

        self.setTitleColor(UIColor.whiteColor(), forState: UIControlState.Highlighted)
    }

    override var highlighted: Bool {
        didSet {

            if (highlighted) {
                self.backgroundColor = UIColor.blueColor()
            }
            else {
                self.backgroundColor = UIColor.clearColor()
            }

        }
    }

}