swift - 如何使用prepare for segue发送结构体实例

Question

假设我有

struct cat {
var paws: int
var name: string
var breed: string

}

我如何将实例连接到新的目标 Controller ？特别是这个实例从数组到新的 DC？

prepare for segue

{
if segue.identifier == "segue"
var nextVC = segue.desitnationviewcontroller as ...
nextvc.instance = ?

}

Answer 1

你可以像这样分配它:

let someCat = cat(paws: 4, name: "Kitty", breed: "Unknown")
let arrayCat = [cat(paws: 5, name: "Mutant", breed: "Unknown"),
                cat(paws: 4, name: "John", breed: "Doe")]

var nextVC = segue.desitnationviewcontroller as SomeViewController
nextVC.somePropertyName = someCat // or arrayCat if you're using an array

在您的 SomeViewController 中，您必须拥有一个类型为 cat 的属性，并且您可以直接分配它。例如:

class SomeViewController: UIViewController {
    var somePropertyName: cat? // [cat]() if it's an array of type cat
}

此外，为了您的方便，我添加了 Apple Swift 文档的链接。链接为here .