CODEWITHSUNDEEP
iosobjective-cuiview
Apollo
Apollo

Reputation: 9064

Adding shadow to top of UIView

How can I add a shadow to the top of my UIView I've tried the following but with no luck...

childView.layer.cornerRadius = 5;
childView.layer.masksToBounds = YES;
childView.layer.shadowOffset = CGSizeMake(-15, 20);
childView.layer.shadowRadius = 5;
childView.layer.shadowOpacity = 0.5;

Upvotes: 14

Views: 33172

Answers (6)

Barbara K
Barbara K

Reputation: 612

Answer is in UIBezierPath

You can find a really interesting article there: https://www.hackingwithswift.com/articles/155/advanced-uiview-shadow-effects-using-shadowpath

layer.shadowOffset = CGSize(width: 0, height: -2)
layer.shadowRadius = 5
layer.shadowPath = UIBezierPath(rect: CGRect(x: -1,
                                             y: -1,
                                             width: self.bounds.width,
                                             height: self.layer.shadowRadius)).cgPath

Upvotes: 0

ProgrammingProton
ProgrammingProton

Reputation: 39

1.Step: First create an outlet of uiview

2.Step:

    buttonBackgroundView.layer.shadowOpacity = 0.7
    buttonBackgroundView.layer.shadowOffset = CGSize(width: 3, height: 3)
    buttonBackgroundView.layer.shadowRadius = 15.0
    buttonBackgroundView.layer.shadowColor = UIColor.black.cgColor

Upvotes: 4

Ryan Herubin
Ryan Herubin

Reputation: 620

Swift 3 Extension:

This includes default values for the app I'm working on, but you can change them to match the style you want in your app.

enum VerticalLocation: String {
    case bottom
    case top  
}

extension UIView {
    func addShadow(location: VerticalLocation, color: UIColor = .black, opacity: Float = 0.5, radius: CGFloat = 5.0) {
        switch location {
        case .bottom:
             addShadow(offset: CGSize(width: 0, height: 10), color: color, opacity: opacity, radius: radius)
        case .top:
            addShadow(offset: CGSize(width: 0, height: -10), color: color, opacity: opacity, radius: radius)
        }
    }

    func addShadow(offset: CGSize, color: UIColor = .black, opacity: Float = 0.5, radius: CGFloat = 5.0) {
        self.layer.masksToBounds = false
        self.layer.shadowColor = color.cgColor
        self.layer.shadowOffset = offset
        self.layer.shadowOpacity = opacity
        self.layer.shadowRadius = radius
    }
}

Upvotes: 28

joels
joels

Reputation: 1312

Set your masksToBounds = NO. The reason you are not seeing the shadow is because it is completely hidden behind your view when the masksToBounds is YES.

If your button is rounded you can instead adjust the view's imageEdgeInset value. ie: UIEdgeInsetsMake(5, 0, 0, 10);

Upvotes: 1

Mischa
Mischa

Reputation: 17289

You need to set the childview's masksToBounds property to NO in order to make the shadow visible.

childView.layer.masksToBounds = NO;

Upvotes: 6

Literphor
Literphor

Reputation: 498

Try setting masksToBounds to NO. According to this link Whats the best way to add a drop shadow to my UIView making that YES will clip the layers extending past the view's bounds.

Upvotes: 0

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