createSwitchNavigator-TypeError：无法将类作为函数调用

Question

尝试将import Foundation struct YourClass: Codable { let format, formatVersion, status: String let numToReturn: Int let allResults: [AllResult] enum CodingKeys: String, CodingKey { case format = "Format" case formatVersion = "FormatVersion" case status = "Status" case numToReturn = "NumToReturn" case allResults = "AllResults" } } struct AllResult: Codable { let conversationState: ConversationState enum CodingKeys: String, CodingKey { case conversationState = "ConversationState" } } struct ConversationState: Codable { let conversationStateTime: String let queryEntities: QueryEntities enum CodingKeys: String, CodingKey { case conversationStateTime = "ConversationStateTime" case queryEntities = "QueryEntities" } } struct QueryEntities: Codable { let queryEntitiesWhere: [Where] enum CodingKeys: String, CodingKey { case queryEntitiesWhere = "Where" } } struct Where: Codable { let type, label, spokenLabel, address: String let city, admin2, admin1, country: String let countryCode, iata, geohash: String let verified, highConfidence, currentLocation: Bool let latitude, longitude: Double let referenceDatum, timeZone: String let radius: Int let links: [Link] let typeID, sourceID, recordID: Int enum CodingKeys: String, CodingKey { case type = "Type" case label = "Label" case spokenLabel = "SpokenLabel" case address = "Address" case city = "City" case admin2 = "Admin2" case admin1 = "Admin1" case country = "Country" case countryCode = "CountryCode" case iata = "IATA" case geohash = "Geohash" case verified = "Verified" case highConfidence = "HighConfidence" case currentLocation = "CurrentLocation" case latitude = "Latitude" case longitude = "Longitude" case referenceDatum = "ReferenceDatum" case timeZone = "TimeZone" case radius = "Radius" case links = "Links" case typeID = "TypeID" case sourceID = "SourceID" case recordID = "RecordID" } } struct Link: Codable { let label: String let url: String enum CodingKeys: String, CodingKey { case label = "Label" case url = "URL" } } 插入createSwitchNavigator()时收到此错误消息。

createAppContainer()

我的代码-router.js

TypeError: Cannot call a class as a function

index.js

export const RootNavigator = (signedIn = false) => {
  return createSwitchNavigator(
    {
      SignedIn: {
        screen: SignedIn
      },
      SignedOut: {
        screen: SignedOut
      }
    },
    {
      initialRouteName: signedIn ? "SignedIn" : "SignedOut"
    }
  );
};

export const createRootNavigator = createAppContainer(RootNavigator());

参考：https://github.com/datomnurdin/auth-reactnative

Answer 1

您正尝试将函数返回到createAppContainer，但是它需要create*Navigator

的实例

将其用作

export const RootNavigator = createSwitchNavigator(
    {
      SignedIn: {
        screen: SignedIn
      },
      SignedOut: {
        screen: SignedOut
      }
    },
    {
      initialRouteName: signedIn ? "SignedIn" : "SignedOut"
    }
  )

或

export const createRootNavigator = createAppContainer(RootNavigator());

编辑

用于调用createRootNavigator作为方法

export function createRootNavigator (signedIn) {
  return createAppContainer(RootNavigator(signedIn));
}

index.js

const Layout = createRootNavigator(signedIn);