How to pass self to initializer during initialization of an object in Swift?

Question

I have the following code:

import CoreBluetooth

class BrowserSample: NSObject, CBCentralManagerDelegate {
    let central : CBCentralManager

    init() {
          


        

Answer 1

a workaround is use ImplicitlyUnwrappedOptional so central is initialized with nil first

class BrowserSample: NSObject, CBCentralManagerDelegate {
    var central : CBCentralManager!

    init() {
        super.init()
        central = CBCentralManager(delegate: self, queue: nil, options: nil)
    }

    func centralManagerDidUpdateState(central: CBCentralManager!)  { }
}

or you can try @lazy

class BrowserSample: NSObject, CBCentralManagerDelegate {
    @lazy var central : CBCentralManager = CBCentralManager(delegate: self, queue: nil, options: nil)

    init() {
        super.init()
    }

    func centralManagerDidUpdateState(central: CBCentralManager!)  { }
}