swift - 在 ConstantsToExport 中导出 swift 枚举

Question

在我的 React-native Swift native 模块中，我尝试将 Swift 枚举导出到 javascript:

@objc(InterfaceOrientationManager)
class InterfaceOrientationManager: NSObject {

  enum InterfaceOrientation: String {
    case landscapeRight
    case landscapeLeft
    case portrait
    case portraitUpsideDown
  }

  @objc
  static func requiresMainQueueSetup() -> Bool {
    return true
  }

  @objc
  func constantsToExport() -> [String: Any]! {
    return [
      "InterfaceOrientation": InterfaceOrientation
    ]
  }

但是这不起作用，我收到错误“类型名称后预期的成员名称或构造函数调用”。屏幕截图位于底部。

有什么办法可以实现这一点吗？我希望避免编写字典:

 let InterfaceOrientation: [String: String] = [
    "landscapeRight": "landscapeRight",
    "landscapeLeft": "landscapeLeft",
    "portrait": "portrait",
    "portraitUpsideDown": "portraitUpsideDown"
  ]

Answer 1

从枚举创建一个字典，如下所示:

enum InterfaceOrientation: CaseIterable {
    case landscapeRight, landscapeLeft, portrait, portraitUpsideDown
}

var interfaceDictionary: [InterfaceOrientation: String] = [:]
for orientation in InterfaceOrientation.allCases {
    interfaceDictionary[orientation] = "\(orientation)"
}