Swift 将数据发送到不同 Storyboard中的 View Controller

Question

我正在尝试将对象发送到不同 Storyboard中的 View Controller 。

Todo，所以我尝试了这个，但它总是为零:

 func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {
    let link = list[indexPath.row].link
    self.object.cat = link

  let storyboard = UIStoryboard(name: "Main", bundle: nil)
  let controller = storyboard.instantiateViewController(withIdentifier: "SelectContacts")
  self.present(controller, animated: true, completion: nil)
}
override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
    let destVC = segue.destination as! SelectContactsViewController
    destVC.object = object
}

Answer 1

你需要

let controller = self.storyboard!.instantiateViewController(withIdentifier: "SelectContacts") as! SelectContactsViewController
controller.object = link
self.present(controller, animated: true, completion: nil)

<小时/>

prepareForSegue 在使用 performSegue 时触发

<小时/>

每个 vc 都包含引用主 Storyboard的 Storyboard属性，因此不需要

let storyboard = UIStoryboard(name: "Main", bundle: nil)