ios - 将字典中的值分配给结构

Question

我有一个这样给出的结构......

struct CricketerDetail {
  var image: UIImage!
  var name: String!
  var details: String!

  init(image: UIImage, name: String, details: String) {
    self.image = image
    self.name = name
    self.details = details
  }
}

现在我有一个这样给出的函数...

在屏幕截图中，Common2 给出为，

class Common2: NSObject {

  class func generateCricketerDetailList() -> [[String:Any]] {
    return [["name": "Sachin Tendulkar","description":"add descr. here","image": UIImage(named: "Sachin.jpeg")!],["name":"Sourav Ganguly","description":"add descr. here","image":UIImage(named: "sourav.jpeg")!],["name":"Adam Gilchrist","description":"add descr. here","image":UIImage(named: "adam.jpeg")!],["name":"Jonty Rhodes","description":"add descr. here","image":UIImage(named: "adam.jpeg")!],["name":"Wasim Akram","description":"add descr. here","image":UIImage(named: "wasim.jpg")!]]
  }
}

现在我如何将这本词典的图像、名称和详细信息具体添加到数组 cricketerDetailList 中，如屏幕截图中所示......？

Answer 1

首先，永远不要将属性或结构成员声明为在 init 方法中使用非可选值初始化的隐式解包可选值。

删除感叹号。

struct CricketerDetail {
  var image: UIImage
  var name: String
  var details: String

...

将一种类型映射到另一种类型的最有效方法是使用 map

func getAllCricketerDetailList() -> [CricketerDetail] {
    return Common2.generateCricketerDetailList().map { item -> CricketerDetail in
         CricketerDetail(image: item["image"] as! UIImage, name: item["name"] as! String, details: item["description"] as! String)
    }
}