Unable to see the IBInspectable custom properties in Storyboard of the custom view class

Question

I have created custom UIView class with IBDesignable method enable in it. Inside the class, I have added few IBInspectable properties looks something like this,

Swift 4.0 - Snippet:

@IBDesignable
class SegmentView: UIView {
    @IBInspectable var borderWidth = 0.0 {
            didSet{
                layer.borderWidth = CGFloat(borderWidth)
            }
        }

        @IBInspectable var borderColor = UIColor.clear {
            didSet{
                layer.borderColor = borderColor.cgColor
            }
        } 
}

Whenever I am using this class in StoryBoard for UIView element, I am unable to view above declared IBInspectable properties in storyboard -> View -> View Property Tab, for reference please check below-attached screenshot.

Issue: In the above segment view header, there are no IBInspectable properties available.

Can someone help me to resolve my above issue?

Thanks in advance.

Answer 1

You need to explicitly declare the variable type, like:

@IBDesignable
class SegmentView: UIView {

    @IBInspectable var borderWidth: CGFloat = 0.0 {
        didSet {
            layer.borderWidth = CGFloat(borderWidth)
        }
    }

    @IBInspectable var borderColor: UIColor = .clear {
        didSet {
            layer.borderColor = borderColor.cgColor
        }
    } 
}