Set alpha of background of UIButton but not the title Set alpha of background of UIButton but not the title ios ios

Set alpha of background of UIButton but not the title


This works for me:

self.myButton.backgroundColor = [UIColor clearColor];

or if you don't want to have it completely clear, but still with transparency you can use:

self.myButton.backgroundColor = [UIColor colorWithRed:200.0/255.0 green:200.0/255.0 blue:200.0/255.0 alpha:0.5];

The second example would give you gray color with alpha 0.5.

SWIFT 4 Update

myButton.backgroundColor = .clear

OR

myButton.backgroundColor = UIColor(red: 200.0/255.0, green: 200.0/255.0, blue: 200.0/255.0, alpha:0.5)


You can also change the alpha of the color in the storyboard,

see attached image:

change alpha of color in storyboard/interface builder


In Swift:

import UIKitclass SignInUpMenuTableViewControllerBigButton: UIButton {    required init(coder aDecoder: NSCoder) {        super.init(coder: aDecoder)        self.applyCustomDesign()    }    func applyCustomDesign() {        // We set the background color of the UIButton.        self.clearHighlighted()    }    override var highlighted: Bool {        didSet {            if highlighted {                self.highlightBtn()            } else {                self.clearHighlighted()            }        }    }    func highlightBtn() {        self.backgroundColor = UIColor.whiteColor().colorWithAlphaComponent(0.0)    }    func clearHighlighted() {        self.backgroundColor = UIColor.whiteColor().colorWithAlphaComponent(0.05)    }}

Swift 4.2

import UIKitclass SignInUpMenuTableViewControllerBigButton: UIButton {    required init(coder aDecoder: NSCoder) {        super.init(coder: aDecoder)        self.applyCustomDesign()    }    func applyCustomDesign() {        // We set the background color of the UIButton.        self.clearHighlighted()    }    override var highlighted: Bool {        didSet {            if highlighted {                self.highlightBtn()            } else {                self.clearHighlighted()            }        }    }    func highlightBtn() {        self.backgroundColor = UIColor.whiteColor().withAlphaComponent(0.0)    }    func clearHighlighted() {        self.backgroundColor = UIColor.whiteColor().withAlphaComponent(0.05)    }}


matomo