ios – Swift 4：在viewDidLoad之后调用(for segue :)

概述我有2个VC：CouponVC和CouponFeedbackVC. 优惠券VC收到品牌：品牌！来自其parentViewController. 现在我想将brand.name传递给CouponFeedbackVC. CouponVC.swift var brandName: String!override func viewDidLoad() { super.viewDidLoad 我有2个VC：CouponVC和CouponFeedbackVC.

优惠券VC收到品牌：品牌！来自其parentVIEwController.
现在我想将brand.name传递给CouponFeedbackVC.

CouponVC.swift

var brandname: String!overrIDe func vIEwDIDLoad() {    super.vIEwDIDLoad    brandname = brand.name}overrIDe func prepare(for segue: UIStoryboardSegue,sender: Any?) {    if segue.IDentifIEr == "couponToFeedBack" {        if let vc = segue.destination as? CouponFeedbackVC {            print(brandname)            vc.brandname = self.brandname        }    }}

在CouponFeedbackVC.swift中

var brandname: String!overrIDe func vIEwDIDLoad() {    super.vIEwDIDLoad()    print("vIEwDIDLoad")    print(brandname)} overrIDe func awakeFromNib() {    print(brandname)    self.vIEw.layoutIfNeeded()}

控制台日志

nilvIEwDIDLoadnilStayUncle

awakeFromNib() – > vIEwDIDLoad() – >准备(为segue 总结

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