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swiftibinspectable

is @IBInspectable var did set value in which phase

this is my code 

@IBDesignable class BarPopView: UIView {

    @IBInspectable var ft: NSString = "1"
    @IBInspectable var ffPrompt: NSString = "Area"

    override init(frame: CGRect) {
        super.init(frame: frame)
        setupView()
    }

    required init?(coder aDecoder: NSCoder) {
        super.init(coder: aDecoder)
        setupView()
    }

    func setupView() {
        print("text: \(ft), prompt: \(ffPrompt)")
    }

}

and i set these value in interface builder
ft: 50 ffPrompt: "Change"

but result is print
"text: 1, prompt: Area"

Solution

  • Its because the method setupView is called during initialisation and during that the properties have initial values. If you want to tweak them accordingly , use property observers:

    @IBInspectable var ft: String = ""{
        didSet {
            setupView()
        }
    }