How to write init methods of a UIViewController in Swift

Question

I am unable to add init method to the following UIViewController class. I need to write some code in the init method. Do i have to write init(coder) method? Even when I add

Answer 1

I was facing the same issue with Swift 5 in Xcode 12.0 and this is my solution in 2020.

class Foo: UIViewController {
    private var bar: Bar!

    override init(nibName nibNameOrNil: String?, bundle nibBundleOrNil: Bundle?) {
        super.init(nibName: nibNameOrNil, bundle: nibBundleOrNil)

        setupController()
    }

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

        setupController()
    }
    
    private func setupController() {
        bar = Bar()
    }
}

and an alternative I am using is to do the initialization inside loadView function.

class Foo: UIViewController {
    private var bar: Bar!
    
    override func loadView() {
        setupController()
    }

    private func setupController() {
        bar = Bar()
    }
}