CGRect 在 viewDidLoad 之外不能正常工作

Question

I am trying to use CGRect to make a rectangle shape and then later return it once this works it will allow me to set constraints on it to place it where I want, I am using it inside of this closure and it is giving me an error. This is placed outside of my viewDidLoad

let logo : UIImageView = {
let myLogo = UIImageView(frame: CGRect(x: 0, y: 0, width: self.view.frame.height*(77/812)*2.078, height:  self.view.frame.height*(77/812)))

    myLogo.image = #imageLiteral(resourceName: "ftrLogo")
    return myLogo

}()

Answer 1

You should probably make your logo a lazy var. Do like this:

    lazy var logo : UIImageView = {

    let myLogo = UIImageView(frame: CGRect(x: 0, y: 0, width: self.view.frame.height*(77/812)*2.078, height:  self.view.frame.height*(77/812)))

        myLogo.image = #imageLiteral(resourceName: "ftrLogo")
        return myLogo

    }()