swift - Swift 将数据发送到不同故事板中的视图控制器
问题描述
我正在尝试将对象发送到不同情节提要中的 Viewcontroller。
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
}
解决方案
你需要
let controller = self.storyboard!.instantiateViewController(withIdentifier: "SelectContacts") as! SelectContactsViewController
controller.object = link
self.present(controller, animated: true, completion: nil)
prepareForSegue
使用时触发performSegue
每个 vc 都包含引用主故事板的故事板属性,因此不需要
let storyboard = UIStoryboard(name: "Main", bundle: nil)