return value to controller caller
Controller A open Controller B After Controller B close, b return a value to A 1. Declare a protocol in A or B protocol SearchPartProtocol{ func ReturnValue(value: [PartItem]) } 2. Controller A implement the protocol Class ControllerA: UIViewController, SearchPartProtocol { var variableReceiveReturnValue : [PartItem] = [] .... // MARK - SearchPartProtocol func ReturnValue(value: [PartItem]) { variableReceiveReturnValue = value } .... } 3. In Controller B, declare a var delegate: Class ControllerB: UIViewController { var delegate : SearchPartProtocol? func viewDidLoad() { } func viewWillDisappear(_ animated: bool) { if delegate != nil{ delegate.ReturnValue(value: valueNeedToBeRet...