make the uibutton rounded, shadow and gradient - swift

Question

can someone tell me please how to make the button rounded, shadow and gradient
here I set the gradient and shadow to the button, but without rounding:
#IBOutlet weak var info: UIButton!
info.setTitle("INFO", for: .normal)
info.setTwoGradients(colorOne: Colors.OrangeGrad, colorTwo: Colors.OrangeGradSec)
info.setTitleColor(UIColor.black, for: .normal)
info.layer.shadowColor = UIColor.darkGray.cgColor
info.layer.shadowOffset = CGSize(width: 2.0, height: 2.0)
info.layer.shadowOpacity = 0.8
info.layer.shadowRadius = 2
view.addSubview(info)
I know that the shadow disappears because of the rounding and I found a way to fix it, ex:
final class CustomButton: UIButton {
private var shadowLayer: CAShapeLayer!
override func layoutSubviews() {
super.layoutSubviews()
if shadowLayer == nil {
shadowLayer = CAShapeLayer()
shadowLayer.path = UIBezierPath(roundedRect: bounds, cornerRadius: 10).cgPath
shadowLayer.fillColor = UIColor.white.cgColor
shadowLayer.shadowColor = UIColor.darkGray.cgColor
shadowLayer.shadowPath = shadowLayer.path
shadowLayer.shadowOffset = CGSize(width: 5.0, height: 2.0)
shadowLayer.shadowOpacity = 0.7
shadowLayer.shadowRadius = 2
layer.insertSublayer(shadowLayer, at: 0)
}
}
but there is a line:
shadowLayer.fillColor = UIColor.white.cgColor
because of which I can't set the gradient
therefore, I cannot find a way by which all three conditions would be met

Answer 1

Output:
Usage
class ViewController: UIViewController {
#IBOutlet var btnGradient: CustomButton!
override func viewDidLoad() {
super.viewDidLoad()
btnGradient.gradientColors = [.red, .green]
btnGradient.setTitle("Gradient Button", for: .normal)
btnGradient.setTitleColor(.white, for: .normal)
}
}
Custom Class
Use this class as a reference to setup the attributes:
class CustomButton: UIButton {
var gradientColors : [UIColor] = [] {
didSet {
setupView()
}
}
override init(frame: CGRect) {
super.init(frame: frame)
setupView()
}
required init?(coder aDecoder: NSCoder) {
super.init(coder: aDecoder)
setupView()
}
private func setupView() {
let startPoint = CGPoint(x: 0, y: 0.5)
let endPoint = CGPoint(x: 1, y: 0.5)
var btnConfig = UIButton.Configuration.plain()
btnConfig.contentInsets = NSDirectionalEdgeInsets(top: 5, leading: layer.frame.height / 2, bottom: 5, trailing: layer.frame.height / 2)
self.configuration = btnConfig
layer.anchorPoint = CGPoint(x: 0.5, y: 0.5)
//Gradient
let gradientLayer = CAGradientLayer()
gradientLayer.frame = bounds
gradientLayer.colors = gradientColors.map { $0.cgColor }
gradientLayer.startPoint = startPoint
gradientLayer.endPoint = endPoint
gradientLayer.cornerRadius = layer.frame.height / 2
if let oldValue = layer.sublayers?[0] as? CAGradientLayer {
layer.replaceSublayer(oldValue, with: gradientLayer)
} else {
layer.insertSublayer(gradientLayer, below: nil)
}
//Shadow
layer.shadowColor = UIColor.darkGray.cgColor
layer.shadowPath = UIBezierPath(roundedRect: bounds, cornerRadius: layer.frame.height / 2).cgPath
layer.shadowOffset = CGSize(width: 2.0, height: 2.0)
layer.shadowOpacity = 0.7
layer.shadowRadius = 2.0
}
}

Answer 2

You can use UIButton Extension or refer code
Pass colors in array with start & end point of gradient effect, you want to start & end. i.e. x=0, y=0 means TopLeft & x=1, y=1 means BottomRight
extension UIButton {
func setGradientLayer(colorsInOrder colors: [CGColor], startPoint sPoint: CGPoint = CGPoint(x: 0, y: 0.5), endPoint ePoint: CGPoint = CGPoint(x: 1, y: 0.5)) {
let gLayer = CAGradientLayer()
gLayer.frame = self.bounds
gLayer.colors = colors
gLayer.startPoint = sPoint
gLayer.endPoint = ePoint
gLayer.cornerRadius = 5
gLayer.shadowOpacity = 0.8
gLayer.shadowOffset = CGSize(width: 2.0, height: 2.0)
layer.insertSublayer(gLayer, at: 0)
}
}