迁移到最新的 Firebase SDK for Swift (v4.0.0)

在 4.0.0 版的 Firebase iOS SDK for Swift 中，我们进行了一些更改，以遵循 Swift API 设计准则中的命名规范。如需修正更新应用的 Firebase iOS SDK 版本时可能收到的任何错误或警告，请按照此迁移指南中的步骤操作。

新版本中的更改

在所有 Firebase 产品中，Swift SDK 都进行了以下更改：

移除了所有常量、协议、类、枚举和类型定义的名称中的 FIR 前缀。
将 FIRApp 重命名为 FirebaseApp。
将 FIROptions 重命名为 FirebaseOptions。

如需查看变更的完整列表，请参阅“详细变更列表”部分。

解决错误

要解决这些更改导致的错误，最好的方法是在 Xcode 中使用“Fix-it”对话框。

当您在 Xcode 工作区中打开更新后的项目时，问题导航器中会显示因更改命名而产生的错误。
点击相应错误，然后按照“Fix-it”对话框中的建议解决该错误。

解决命名冲突

如需解决命名冲突，请使用模块提供的命名空间。例如，对于 FIRUser（现在是 User），您可能需要区分 User 类/结构体和 Firebase User 类。

@import Firebase
...
var firebaseUser: Firebase.User?

详细的更改列表

Analytics

之前	新
函数
`FIRAnalytics`
`logEvent(withName:parameters:)`	`logEvent(_:parameters:)`
之前的用法： FIRAnalytics.logEvent(withName: "com.myapp.appStart", parameters: nil) 新用法： Analytics.logEvent("com.myapp.appStart", parameters: nil)
`setUserPropertyString(_:forName:)`	`setUserProperty(_:forName:)`
之前的用法： FIRAnalytics.setUserPropertyString("mechanic", forName: "job") 新用法： Analytics.setUserProperty("mechanic", forName: "job")
类
`FIRAnalytics`	`Analytics`
常量
`FIRAnalyticsEventAddPaymentInfo`	`AnalyticsEventAddPaymentInfo`
`FIRAnalyticsEventAddToCart`	`AnalyticsEventAddToCart`
`FIRAnalyticsEventAddToWishlist`	`AnalyticsEventAddToWishlist`
`FIRAnalyticsEventAppOpen`	`AnalyticsEventAppOpen`
`FIRAnalyticsEventBeginCheckout`	`AnalyticsEventBeginCheckout`
`FIRAnalyticsEventCampaignDetails`	`AnalyticsEventCampaignDetails`
`FIRAnalyticsEventCheckoutProgress`	`AnalyticsEventCheckoutProgress`
`FIRAnalyticsEventEarnVirtualCurrency`	`AnalyticsEventEarnVirtualCurrency`
`FIRAnalyticsEventEcommercePurchase`	`AnalyticsEventEcommercePurchase`
`FIRAnalyticsEventGenerateLead`	`AnalyticsEventGenerateLead`
`FIRAnalyticsEventJoinGroup`	`AnalyticsEventJoinGroup`
`FIRAnalyticsEventLevelUp`	`AnalyticsEventLevelUp`
`FIRAnalyticsEventLogin`	`AnalyticsEventLogin`
`FIRAnalyticsEventPostScore`	`AnalyticsEventPostScore`
`FIRAnalyticsEventPresentOffer`	`AnalyticsEventPresentOffer`
`FIRAnalyticsEventPurchaseRefund`	`AnalyticsEventPurchaseRefund`
`FIRAnalyticsEventRemoveFromCart`	`AnalyticsEventRemoveFromCart`
`FIRAnalyticsEventSearch`	`AnalyticsEventSearch`
`FIRAnalyticsEventSelectContent`	`AnalyticsEventSelectContent`
`FIRAnalyticsEventSetCheckoutOption`	`AnalyticsEventSetCheckoutOption`
`FIRAnalyticsEventShare`	`AnalyticsEventShare`
`FIRAnalyticsEventSignUp`	`AnalyticsEventSignUp`
`FIRAnalyticsEventSpendVirtualCurrency`	`AnalyticsEventSpendVirtualCurrency`
`FIRAnalyticsEventTutorialBegin`	`AnalyticsEventTutorialBegin`
`FIRAnalyticsEventTutorialComplete`	`AnalyticsEventTutorialComplete`
`FIRAnalyticsEventUnlockAchievement`	`AnalyticsEventUnlockAchievement`
`FIRAnalyticsEventViewItem`	`AnalyticsEventViewItem`
`FIRAnalyticsEventViewItemList`	`AnalyticsEventViewItemList`
`FIRAnalyticsEventViewSearchResults`	`AnalyticsEventViewSearchResults`
`FIRAnalyticsParameterAchievementID`	`AnalyticsParameterAchievementID`
`FIRAnalyticsParameterAdNetworkClickID`	`AnalyticsParameterAdNetworkClickID`
`FIRAnalyticsParameterAffiliation`	`AnalyticsParameterAffiliation`
`FIRAnalyticsParameterCampaign`	`AnalyticsParameterCampaign`
`FIRAnalyticsParameterCharacter`	`AnalyticsParameterCharacter`
`FIRAnalyticsParameterCheckoutStep`	`AnalyticsParameterCheckoutStep`
`FIRAnalyticsParameterCheckoutOption`	`AnalyticsParameterCheckoutOption`
`FIRAnalyticsParameterContent`	`AnalyticsParameterContent`
`FIRAnalyticsParameterContentType`	`AnalyticsParameterContentType`
`FIRAnalyticsParameterCoupon`	`AnalyticsParameterCoupon`
`FIRAnalyticsParameterCreativeName`	`AnalyticsParameterCreativeName`
`FIRAnalyticsParameterCreativeSlot`	`AnalyticsParameterCreativeSlot`
`FIRAnalyticsParameterCurrency`	`AnalyticsParameterCurrency`
`FIRAnalyticsParameterDestination`	`AnalyticsParameterDestination`
`FIRAnalyticsParameterEndDate`	`AnalyticsParameterEndDate`
`FIRAnalyticsParameterFlightNumber`	`AnalyticsParameterFlightNumber`
`FIRAnalyticsParameterGroupID`	`AnalyticsParameterGroupID`
`FIRAnalyticsParameterIndex`	`AnalyticsParameterIndex`
`FIRAnalyticsParameterItemBrand`	`AnalyticsParameterItemBrand`
`FIRAnalyticsParameterItemCategory`	`AnalyticsParameterItemCategory`
`FIRAnalyticsParameterItemID`	`AnalyticsParameterItemID`
`FIRAnalyticsParameterItemLocationID`	`AnalyticsParameterItemLocationID`
`FIRAnalyticsParameterItemName`	`AnalyticsParameterItemName`
`FIRAnalyticsParameterItemList`	`AnalyticsParameterItemList`
`FIRAnalyticsParameterItemVariant`	`AnalyticsParameterItemVariant`
`FIRAnalyticsParameterLevel`	`AnalyticsParameterLevel`
`FIRAnalyticsParameterLocation`	`AnalyticsParameterLocation`
`FIRAnalyticsParameterMedium`	`AnalyticsParameterMedium`
`FIRAnalyticsParameterNumberOfNights`	`AnalyticsParameterNumberOfNights`
`FIRAnalyticsParameterNumberOfPassengers`	`AnalyticsParameterNumberOfPassengers`
`FIRAnalyticsParameterNumberOfRooms`	`AnalyticsParameterNumberOfRooms`
`FIRAnalyticsParameterOrigin`	`AnalyticsParameterOrigin`
`FIRAnalyticsParameterPrice`	`AnalyticsParameterPrice`
`FIRAnalyticsParameterQuantity`	`AnalyticsParameterQuantity`
`FIRAnalyticsParameterScore`	`AnalyticsParameterScore`
`FIRAnalyticsParameterSearchTerm`	`AnalyticsParameterSearchTerm`
`FIRAnalyticsParameterShipping`	`AnalyticsParameterShipping`
`FIRAnalyticsParameterSignUpMethod`	`AnalyticsParameterSignUpMethod`
`FIRAnalyticsParameterSource`	`AnalyticsParameterSource`
`FIRAnalyticsParameterStartDate`	`AnalyticsParameterStartDate`
`FIRAnalyticsParameterTax`	`AnalyticsParameterTax`
`FIRAnalyticsParameterTerm`	`AnalyticsParameterTerm`
`FIRAnalyticsParameterTransactionID`	`AnalyticsParameterTransactionID`
`FIRAnalyticsParameterTravelClass`	`AnalyticsParameterTravelClass`
`FIRAnalyticsParameterValue`	`AnalyticsParameterValue`
`FIRAnalyticsParameterVirtualCurrencyName`	`AnalyticsParameterVirtualCurrencyName`
`FIRAnalyticsUserPropertySignUpMethod`	`AnalyticsUserPropertySignUpMethod`

身份验证

之前	新
函数
`FIRAuth.h`
`init?(app:)`	`auth(app:)`
之前的用法： let auth = FIRAuth(app: myApp) 新用法： let auth = Auth.auth(app: myApp)
`FIRUser.h`
`updateEmail(_:completion:)`	`updateEmail(to:completion:)`
之前的用法： user.updateEmail("firebase_rox42@gmail.com") { error in // Check for error } 新用法： user.updateEmail(to: "firebase_rox42@gmail.com") { error in // Check for error }
`updatePassword(_:completion:)`	`updatePassword(to:completion:)`
之前的用法： user.updatePassword("hunter2") { error in // Check for error } 新用法： user.updatePassword(to: "hunter2") { error in // Check for error }
`profileChangeRequest()`	`createProfileChangeRequest()`
之前的用法： let request = user.profileChangeRequest() 新用法： let request = user.createProfileChangeRequest()
`getTokenWithCompletion(_:)`	`getToken(completion:)`
之前的用法： user.getTokenWithCompletion() { token, error in // Handle token or error here } 新用法： user.getToken() { token, error in // Handle token or error here }
类
`FIRAdditionalUserInfo`	`AdditionalUserInfo`
`FIRActionCodeInfo`	`ActionCodeInfo`
`FIRAuth`	`Auth`
`FIRAuthCredential`	`AuthCredential`
`FIRAuthDataResult`	`AuthDataResult`
`FIRAuthErrors`	`AuthErrors`
`FIRSecureTokenService`	`SecureTokenService`
`FIRUser`	`User`
`FIRUserProfileChangeRequest`	`UserProfileChangeRequest`
`FIRUserInfo`	`UserInfo`
`FIREmailAuthProvider`	`EmailAuthProvider`
`FIRFacebookAuthProvider`	`FacebookAuthProvider`
`FIRGitHubAuthProvider`	`GitHubAuthProvider`
`FIRGoogleAuthProvider`	`GoogleAuthProvider`
`FIROAuthProvider`	`OAuthProvider`
`FIRTwitterAuthProvider`	`TwitterAuthProvider`
常量
`FIRAuthErrorDomain`	`AuthErrorDomain`
`FIRAuthErrorNameKey`	`AuthErrorNameKey`
`FIREmailAuthProviderID`	`EmailAuthProviderID`
`FIRFacebookAuthProviderID`	`FacebookAuthProviderID`
`FIRGitHubAuthProviderID`	`GitHubAuthProviderID`
`FIRGoogleAuthProviderID`	`GoogleAuthProviderID`
`FIRTwitterAuthProviderID`	`TwitterAuthProviderID`
`FIRAuthStateDidChange`	`AuthStateDidChange`
类型声明
`FIRAuthStateDidChangeListenerHandle`	`AuthStateDidChangeListenerHandle`
`FIRAuthStateDidChangeListenerBlock`	`AuthStateDidChangeListenerBlock`
`FIRAuthDataResultCallback`	`AuthDataResultCallback`
`FIRAuthResultCallback`	`AuthResultCallback`
`FIRProviderQueryCallback`	`ProviderQueryCallback`
`FIRSendPasswordResetCallback`	`SendPasswordResetCallback`
`FIRConfirmPasswordResetCallback`	`ConfirmPasswordResetCallback`
`FIRVerifyPasswordResetCodeCallback`	`VerifyPasswordResetCodeCallback`
`FIRApplyActionCodeCallback`	`ApplyActionCodeCallback`
`FIRVerificationResultCallback`	`VerificationResultCallback`
枚举
`FIRActionDataKey`	`ActionDataKey`
`FIRActionCodeOperation`	`ActionCodeOperation`
`FIRAuthErrorCode`	`AuthErrorCode`

核心

之前	新
函数
`FIRAnalyticsConfiguration.sharedInstance()`	`AnalyticsConfiguration.shared()`
`FIRApp.configure(withName:options:)`	`FirebaseApp.configure(name:options:)`
之前的用法： FIRApp.configure(withName: "myCustomApp", options: customOptions) 新用法： FirebaseApp.configure(name: "myCustomApp", options: customOptions)
`FIRApp.defaultApp()`	`FirebaseApp.app()`
`FIRApp.init?(named:)`	`FirebaseApp.app(name:)`
之前的用法： let app = FIRApp(named: "myCustomApp") 新用法： let app = FirebaseApp.app(name: "myCustomApp")
`FIRApp.allApps()`	`FirebaseApp.allApps`
之前的用法： for app in FIRApp.allApps() { print("App name: \(app.name)") } 新用法： for app in FirebaseApp.allApps { print("App name: \(app.name)") }
`FIRConfiguration.sharedInstance()`	`FirebaseConfiguration.shared()`
`FIROptions.default()`	`FirebaseOptions.defaultOptions()`
属性
FIROptions
`GCMSenderID`	`gcmSenderID`
类
`FIRAnalyticsConfiguration`	`AnalyticsConfiguration`
`FIRApp`	`FirebaseApp`
`FIRConfiguration`	`FirebaseConfiguration`
`FIROptions`	`FirebaseOptions`
类型声明
`FIRAppVoidBoolCallback`	`FirebaseAppVoidBoolCallback`
枚举
`FIRLoggerLevel`	`FirebaseLoggerLevel`

崩溃

之前	新
函数
`FIRCrashMessage(_:)`	`FirebaseCrashMessage(_:)`

数据库

之前	新
属性
FIRDatabase.h
`persistenceEnabled`	`isPersistenceEnabled`
类
`FIRDataSnapshot`	`DataSnapshot`
`FIRDatabase`	`Database`
`FIRDatabaseQuery`	`DatabaseQuery`
`FIRDatabaseReference`	`DatabaseReference`
`FIRMutableData`	`MutableData`
`FIRServerValue`	`ServerValue`
`FIRTransactionResult`	`TransactionResult`
类型声明
`FIRDatabaseHandle`	`DatabaseHandle`
枚举
`FIRDataEventType`	`DataEventType`

Dynamic Links

之前	新
函数
`// FIRDynamicLinks.h`
`dynamicLink(fromUniversalLinkURL:)`	`dynamicLink(fromUniversalLink:)`
类
`FIRDynamicLink`	`DynamicLink`
`FIRDLRetrievalDelegate`	`DLRetrievalDelegate`
`FIRDynamicLinks`	`DynamicLinks`
`FIRDynamicLinkGoogleAnalyticsParameters`	`DynamicLinkGoogleAnalyticsParameters`
`FIRDynamicLinkIOSParameters`	`DynamicLinkIOSParameters`
`FIRDynamicLinkItunesConnectAnalyticsParameters`	`DynamicLinkItunesConnectAnalyticsParameters`
`FIRDynamicLinkAndroidParameters`	`DynamicLinkAndroidParameters`
`FIRDynamicLinkSocialMetaTagParameters`	`DynamicLinkSocialMetaTagParameters`
`FIRDynamicLinkNavigationInfoParameters`	`DynamicLinkNavigationInfoParameters`
`FIRDynamicLinkComponentsOptions`	`DynamicLinkComponentsOptions`
`FIRDynamicLinkComponents`	`DynamicLinkComponents`
类型声明
`FIRDynamicLinkResolverHandler`	`DynamicLinkResolverHandler`
`FIRDynamicLinkUniversalLinkHandler`	`DynamicLinkUniversalLinkHandler`
`FIRDynamicLinkShortenerCompletion`	`DynamicLinkShortenerCompletion`
枚举
`FIRDynamicLinkMatchConfidence`	`DynamicLinkMatchConfidence`
`FIRDLRequiredMatchConfidence`	`DLRequiredMatchConfidence`
`FIRDLRetrieveResult`	`DLRetrieveResult`
`FIRShortDynamicLinkPathLength`	`ShortDynamicLinkPathLength`

实例 ID

之前	新
函数
`FIRInstanceID.h`
`getWithHandler()`	`getIDWithHandler()`
之前的用法： FIRInstanceID.instanceID().get { identity, error in // Check identity and error } 新用法： instanceID.instanceID().getID { identity, error in // Check identity and error }
`deleteWithHandler()`	`deleteIDWithHandler()`
之前的用法： FIRInstanceID.instanceID().delete { error in // Check error } 新用法： instanceID.instanceID().deleteID { error in // Check error }
类
`FIRInstanceID`	`InstanceID`
常量
`FIRInstanceIDScopeFirebaseMessaging`	`InstanceIDScopeFirebaseMessaging`
`FIRInstanceIDTokenRefresh`	`InstanceIDTokenRefresh`
类型声明
`FIRInstanceIDTokenHandler`	`InstanceIDTokenHandler`
`FIRInstanceIDDeleteTokenHandler`	`InstanceIDDeleteTokenHandler`
`FIRInstanceIDHandler`	`InstanceIDHandler`
`FIRInstanceIDDeleteHandler`	`InstanceIDDeleteHandler`
枚举
`FIRInstanceIDError`	`InstanceIDError`
`FIRInstanceIDAPNSTokenType`	`InstanceIDAPNSTokenType`

邀请

之前	新
类
`FIRInvites`	`Invites`
`FIRInvitesTargetApplication`	`InvitesTargetApplication`
`FIRReceivedInvite`	`ReceivedInvite`
常量
`FIRInvitesErrorDomain`	`InvitesErrorDomain`
枚举
`FIRInvitesErrorCode`	`InvitesErrorCode`
`FIRReceivedInviteMatchType`	`ReceivedInviteMatchType`
协议
`FIRInviteBuilder`	`InviteBuilder`
`FIRInviteDelegate`	`InviteDelegate`

Messaging

之前	新
函数
FIRMessaging
`connect(completion:)`	`connect(handler:)`
类
`FIRMessagingMessageInfo`	`MessagingMessageInfo`
`FIRMessagingRemoteMessage`	`MessagingRemoteMessage`
`FIRMessaging`	`Messaging`
常量
`FIRMessagingSendSuccess`	`MessagingSendSuccess`
`FIRMessagingSendError`	`MessagingSendError`
`FIRMessagingMessagesDeleted`	`MessagingMessagesDeleted`
`FIRMessagingConnectionStateChanged`	`MessagingConnectionStateChanged`
`FIRMessagingRegistrationTokenRefreshed`	`MessagingRegistrationTokenRefreshed`
类型声明
`FIRMessagingFCMTokenFetchCompletion`	`MessagingFCMTokenFetchCompletion`
`FIRMessagingDeleteFCMTokenCompletion`	`MessagingDeleteFCMTokenCompletion`
枚举
`FIRMessagingError`	`MessagingError`
`FIRMessagingMessageStatus`	`MessagingMessageStatus`
`FIRMessagingAPNSTokenType`	`MessagingAPNSTokenType`
协议
`FIRMessagingDelegate`	`MessagingDelegate`

Remote Config

之前	新
函数
FIRRemoteConfig
`setDefaultsFromPlistFileName(_:)`	`setDefaults(fromPlist:)`
`setDefaultsFromPlistFileName(_:namespace)`	`setDefaults(fromPlist:namespace)`
类
`FIRRemoteConfigValue`	`RemoteConfigValue`
`FIRRemoteConfigSettings`	`RemoteConfigSettings`
`FIRRemoteConfig`	`RemoteConfig`
常量
`FIRNamespaceGoogleMobilePlatform`	`NamespaceGoogleMobilePlatform`
`FIRRemoteConfigThrottledEndTimeInSecondsKey`	`RemoteConfigThrottledEndTimeInSecondsKey`
`FIRRemoteConfigErrorDomain`	`RemoteConfigErrorDomain`
类型声明
`FIRRemoteConfigFetchCompletion`	`RemoteConfigFetchCompletion`
枚举
`FIRRemoteConfigFetchStatus`	`RemoteConfigFetchStatus`
`FIRRemoteConfigError`	`RemoteConfigError`
`FIRRemoteConfigSource`	`RemoteConfigSource`

Storage

之前	新
函数
FIRStorageReference
`put(_:)`	`putData(_:)`
`put(_:metadata:)`	`putData(_:metadata:)`
`put(_:metadata:completion:)`	`putData(_:metadata:completion:)`
`putFile(_:)`	`putFile(from:)`
`putFile(_:metadata:)`	`putFile(from:metadata:)`
`putFile(_:metadata:completion:)`	`putFile(from:metadata:completion:)`
`data(withMaxSize:completion:)`	`getData(maxSize:completion:)`
`metadata(completion:)`	`getMetadata(completion:)`
`update(_:completion:)`	`updateMetadata(_:completion:)`
类
`FIRStorage`	`Storage`
`FIRStorageDownloadTask`	`StorageDownloadTask`
`FIRStorageMetadata`	`StorageMetadata`
`FIRStorageObservableTask`	`StorageObservableTask`
`FIRStorageReference`	`StorageReference`
`FIRStorageTask`	`StorageTask`
`FIRStorageTaskSnapshot`	`StorageTaskSnapshot`
`FIRStorageUploadTask`	`StorageUploadTask`
常量
`FIRStorageErrorDomain`	`StorageErrorDomain`
枚举
`FIRStorageTaskStatus`	`StorageTaskStatus`
`FIRStorageErrorCode`	`StorageErrorCode`
协议
`FIRStorageTaskManagement`	`StorageTaskManagement`
类型声明
`FIRStorageHandle`	`StorageHandle`
`FIRStorageVoidDataError`	`StorageVoidDataError`
`FIRStorageVoidError`	`StorageVoidError`
`FIRStorageVoidMetadata`	`StorageVoidMetadata`
`FIRStorageVoidMetadataError`	`StorageVoidMetadataError`
`FIRStorageVoidSnapshot`	`StorageVoidSnapshot`
`FIRStorageVoidURLError`	`StorageVoidURLError`