Po zainstalowaniu lub zaktualizowaniu podów projektu otwórz Xcode
projektu korzystającego z: .xcworkspace.
W aplikacji zaimportuj Firebase:
Swift
importFirebase
Objective-C
@importFirebase;
Tłumaczenie ciągu tekstowego
Aby przetłumaczyć ciąg znaków między dwoma językami:
Utwórz obiekt Translator, konfigurując go ze źródłem i miejscem docelowym
języki:
Swift
// Create an English-German translator:letoptions=TranslatorOptions(sourceLanguage:.en,targetLanguage:.de)letenglishGermanTranslator=NaturalLanguage.naturalLanguage().translator(options:options)
Objective-C
// Create an English-German translator:FIRTranslatorOptions*options=[[FIRTranslatorOptionsalloc]initWithSourceLanguage:FIRTranslateLanguageENtargetLanguage:FIRTranslateLanguageDE];FIRTranslator*englishGermanTranslator=[[FIRNaturalLanguagenaturalLanguage]translatorWithOptions:options];
Jeśli nie znasz języka wprowadzania, możesz użyć języka
Identity API. (Pamiętaj jednak,
Nie przechowuj zbyt wielu modeli językowych na urządzeniu jednocześnie).
Upewnij się, że wymagany model tłumaczenia został pobrany na urządzenie.
Nie dzwoń pod numer translate(_:completion:), dopóki nie upewnisz się, że model jest dostępny.
Swift
letconditions=ModelDownloadConditions(allowsCellularAccess:false,allowsBackgroundDownloading:true)englishGermanTranslator.downloadModelIfNeeded(with:conditions){erroringuarderror==nilelse{return}// Model downloaded successfully. Okay to start translating.}
Objective-C
FIRModelDownloadConditions*conditions=[[FIRModelDownloadConditionsalloc]initWithAllowsCellularAccess:NOallowsBackgroundDownloading:YES];[englishGermanTranslatordownloadModelIfNeededWithConditions:conditionscompletion:^(NSError*_Nullableerror){if(error!=nil){return;}// Model downloaded successfully. Okay to start translating.}];
Modele językowe mają około 30 MB, więc nie pobieraj ich niepotrzebnie.
pobierać je tylko przez Wi-Fi, chyba że użytkownik określi inaczej. Ty
a także usuwać
niepotrzebne modele.
Zobacz Bezpośrednie zarządzanie modelami tłumaczenia.
Po potwierdzeniu, że model został pobrany, przekaż ciąg tekstu w polu
języka źródłowego do translate(_:completion:):
ML Kit tłumaczy tekst na skonfigurowany przez Ciebie język docelowy,
przekazuje przetłumaczony tekst do modułu obsługi uzupełniania.
Bezpośrednie zarządzanie modelami translacji
Jeśli używasz interfejsu Translation API w sposób opisany powyżej, ML Kit automatycznie
pobiera na urządzenie modele tłumaczeń dla określonych języków. Ty
można też wprost zarządzać modelami tłumaczenia, które mają być dostępne
na swoim urządzeniu za pomocą interfejsu API do zarządzania modelami translacji ML Kit. Może to być
przydatne, jeśli chcesz pobrać modele z wyprzedzeniem lub usunąć niepotrzebne modele
z urządzenia.
Aby pobrać modele tłumaczenia zapisane na urządzeniu:
// Delete the German model if it's on the device.letdeModel=TranslateRemoteModel.translateRemoteModel(language:.de)ModelManager.modelManager().deleteDownloadedModel(deModel){erroringuarderror==nilelse{return}// Model deleted.
}
Objective-C
// Delete the German model if it's on the device.FIRTranslateRemoteModel*deModel=[FIRTranslateRemoteModeltranslateRemoteModelWithLanguage:FIRTranslateLanguageDE];[[FIRModelManagermodelManager]deleteDownloadedModel:deModelcompletion:^(NSError*_Nullableerror){if(error!=nil){return;}// Model deleted.}];
Aby pobrać model:
Swift
// Download the French model.letfrModel=TranslateRemoteModel.translateRemoteModel(language:.fr)// Keep a reference to the download progress so you can check that the model// is available before you use it.progress=ModelManager.modelManager().download(frModel,conditions:ModelDownloadConditions(allowsCellularAccess:false,allowsBackgroundDownloading:true))
Jeśli chcesz uzyskać stan pobierania w aplikacji NotificationCenter, zarejestruj się
obserwatorzy firebaseMLModelDownloadDidSucceed i
firebaseMLModelDownloadDidFail Pamiętaj, aby użyć słabego odniesienia do self
w bloku obserwatora, ponieważ pobieranie może zająć trochę czasu,
może zostać zwolniony przed zakończeniem pobierania. Przykład:
NotificationCenter.default.addObserver(forName:.firebaseMLModelDownloadDidSucceed,object:nil,queue:nil){[weakself]notificationinguardletstrongSelf=self,letuserInfo=notification.userInfo,letmodel=userInfo[ModelDownloadUserInfoKey.remoteModel.rawValue]as?TranslateRemoteModel,model==frModelelse{return}// The model was downloaded and is available on the device}NotificationCenter.default.addObserver(forName:.firebaseMLModelDownloadDidFail,object:nil,queue:nil){[weakself]notificationinguardletstrongSelf=self,letuserInfo=notification.userInfo,letmodel=userInfo[ModelDownloadUserInfoKey.remoteModel.rawValue]as?TranslateRemoteModelelse{return}leterror=userInfo[ModelDownloadUserInfoKey.error.rawValue]// ...}
Objective-C
// Download the French model.FIRModelDownloadConditions*conditions=[[FIRModelDownloadConditionsalloc]initWithAllowsCellularAccess:NOallowsBackgroundDownloading:YES];FIRTranslateRemoteModel*frModel=[FIRTranslateRemoteModeltranslateRemoteModelWithLanguage:FIRTranslateLanguageFR];// Keep a reference to the download progress so you can check that the model// is available before you use it.self.downloadProgress=[[FIRModelManagermodelManager]downloadModel:frModelconditions:conditions];
Jeśli chcesz uzyskać stan pobierania w aplikacji NSNotificationCenter, zarejestruj się
obserwatorzy FIRModelDownloadDidSucceedNotification i
FIRModelDownloadDidFailNotification Pamiętaj, aby użyć słabego odniesienia do
self w bloku obserwatora, ponieważ pobieranie może trochę potrwać.
źródłowy obiekt może zostać uwolniony przed zakończeniem pobierania.
__blockMyViewController*weakSelf=self;[NSNotificationCenter.defaultCenteraddObserverForName:FIRModelDownloadDidSucceedNotificationobject:nilqueue:nilusingBlock:^(NSNotification*_Nonnullnote){if(weakSelf==nil|note.userInfo==nil){return;}FIRTranslateRemoteModel*model=note.userInfo[FIRModelDownloadUserInfoKeyRemoteModel];if([modelisKindOfClass:[FIRTranslateRemoteModelclass]] && model==frModel){// The model was downloaded and is available on the device}}];[NSNotificationCenter.defaultCenteraddObserverForName:FIRModelDownloadDidFailNotificationobject:nilqueue:nilusingBlock:^(NSNotification*_Nonnullnote){if(weakSelf==nil|note.userInfo==nil){return;}NSError*error=note.userInfo[FIRModelDownloadUserInfoKeyError];}];
[null,null,["Ostatnia aktualizacja: 2025-08-12 UTC."],[],[],null,["You can use ML Kit to translate text between languages. ML Kit\ncurrently supports translation between\n[59 languages](/docs/ml-kit/translation-language-support).\n\n\u003cbr /\u003e\n\nBefore you begin\n\n\u003cbr /\u003e\n\n1. If you have not already added Firebase to your app, do so by following the steps in the [getting started guide](/docs/ios/setup).\n2. Include the ML Kit libraries in your Podfile: \n\n ```\n pod 'Firebase/MLNLTranslate', '6.25.0'\n ```\n After you install or update your project's Pods, be sure to open your Xcode project using its `.xcworkspace`.\n3. In your app, import Firebase: \n\n Swift \n\n ```swift\n import Firebase\n ```\n\n Objective-C \n\n ```objective-c\n @import Firebase;\n ```\n\nTranslate a string of text\n\nTo translate a string between two languages:\n\n1. Create a `Translator` object, configuring it with the source and target\n languages:\n\n Swift \n\n // Create an English-German translator:\n let options = TranslatorOptions(sourceLanguage: .en, targetLanguage: .de)\n let englishGermanTranslator = NaturalLanguage.naturalLanguage().translator(options: options)\n\n Objective-C \n\n // Create an English-German translator:\n FIRTranslatorOptions *options =\n [[FIRTranslatorOptions alloc] initWithSourceLanguage:FIRTranslateLanguageEN\n targetLanguage:FIRTranslateLanguageDE];\n FIRTranslator *englishGermanTranslator =\n [[FIRNaturalLanguage naturalLanguage] translatorWithOptions:options];\n\n If you don't know the language of the input text, you can use the [language\n identification API](/docs/ml-kit/identify-languages) first. (But be sure you\n don't keep too many language models on the device at once.)\n2. Make sure the required translation model has been downloaded to the device.\n Don't call `translate(_:completion:)` until you know the model is available.\n\n Swift \n\n let conditions = ModelDownloadConditions(\n allowsCellularAccess: false,\n allowsBackgroundDownloading: true\n )\n englishGermanTranslator.downloadModelIfNeeded(with: conditions) { error in\n guard error == nil else { return }\n\n // Model downloaded successfully. Okay to start translating.\n }\n\n Objective-C \n\n FIRModelDownloadConditions *conditions =\n [[FIRModelDownloadConditions alloc] initWithAllowsCellularAccess:NO\n allowsBackgroundDownloading:YES];\n [englishGermanTranslator downloadModelIfNeededWithConditions:conditions\n completion:^(NSError *_Nullable error) {\n if (error != nil) {\n return;\n }\n // Model downloaded successfully. Okay to start translating.\n }];\n\n Language models are around 30MB, so don't download them unnecessarily, and\n only download them using WiFi, unless the user has specified otherwise. You\n should also delete unneeded models.\n See [Explicitly manage translation models](#manage_models).\n3. After you confirm the model has been downloaded, pass a string of text in\n the source language to `translate(_:completion:)`:\n\n Swift \n\n englishGermanTranslator.translate(text) { translatedText, error in\n guard error == nil, let translatedText = translatedText else { return }\n\n // Translation succeeded.\n }\n\n Objective-C \n\n [englishGermanTranslator translateText:text\n completion:^(NSString *_Nullable translatedText,\n NSError *_Nullable error) {\n if (error != nil || translatedText == nil) {\n return;\n }\n\n // Translation succeeded.\n }];\n\n ML Kit translates the text to the target language you configured and\n passes the translated text to the completion handler.\n\nExplicitly manage translation models\n\n\nWhen you use the translation API as described above, ML Kit automatically\ndownloads language-specific translation models to the device as required. You\ncan also explicitly manage the translation models you want available on the\ndevice by using ML Kit's translation model management API. This can be\nuseful if you want to download models ahead of time, or delete unneeded models\nfrom the device.\n\n\u003cbr /\u003e\n\nTo get the translation models stored on the device: \n\nSwift \n\n let localModels = ModelManager.modelManager().downloadedTranslateModels\n\nObjective-C \n\n NSSet\u003cFIRTranslateRemoteModel *\u003e *localModels =\n [FIRModelManager modelManager].downloadedTranslateModels;\n\nTo delete a model: \n\nSwift \n\n // Delete the German model if it's on the device.\n let deModel = TranslateRemoteModel.translateRemoteModel(language: .de)\n ModelManager.modelManager().deleteDownloadedModel(deModel) { error in\n guard error == nil else { return }\n // Model deleted.\n }\n\nObjective-C \n\n // Delete the German model if it's on the device.\n FIRTranslateRemoteModel *deModel =\n [FIRTranslateRemoteModel translateRemoteModelWithLanguage:FIRTranslateLanguageDE];\n [[FIRModelManager modelManager] deleteDownloadedModel:deModel\n completion:^(NSError * _Nullable error) {\n if (error != nil) {\n return;\n }\n // Model deleted.\n }];\n\nTo download a model: \n\nSwift \n\n // Download the French model.\n let frModel = TranslateRemoteModel.translateRemoteModel(language: .fr)\n\n // Keep a reference to the download progress so you can check that the model\n // is available before you use it.\n progress = ModelManager.modelManager().download(\n frModel,\n conditions: ModelDownloadConditions(\n allowsCellularAccess: false,\n allowsBackgroundDownloading: true\n )\n )\n\nIf you want to get the download status with `NotificationCenter`, register\nobservers for `firebaseMLModelDownloadDidSucceed` and\n`firebaseMLModelDownloadDidFail`. Be sure to use a weak reference to `self`\nin the observer block, since downloads can take some time, and the originating\nobject can be freed by the time the download finishes. For example: \n\n NotificationCenter.default.addObserver(\n forName: .firebaseMLModelDownloadDidSucceed,\n object: nil,\n queue: nil\n ) { [weak self] notification in\n guard let strongSelf = self,\n let userInfo = notification.userInfo,\n let model = userInfo[ModelDownloadUserInfoKey.remoteModel.rawValue]\n as? TranslateRemoteModel,\n model == frModel\n else { return }\n // The model was downloaded and is available on the device\n }\n\n NotificationCenter.default.addObserver(\n forName: .firebaseMLModelDownloadDidFail,\n object: nil,\n queue: nil\n ) { [weak self] notification in\n guard let strongSelf = self,\n let userInfo = notification.userInfo,\n let model = userInfo[ModelDownloadUserInfoKey.remoteModel.rawValue]\n as? TranslateRemoteModel\n else { return }\n let error = userInfo[ModelDownloadUserInfoKey.error.rawValue]\n // ...\n }\n\nObjective-C \n\n // Download the French model.\n FIRModelDownloadConditions *conditions =\n [[FIRModelDownloadConditions alloc] initWithAllowsCellularAccess:NO\n allowsBackgroundDownloading:YES];\n FIRTranslateRemoteModel *frModel =\n [FIRTranslateRemoteModel translateRemoteModelWithLanguage:FIRTranslateLanguageFR];\n\n // Keep a reference to the download progress so you can check that the model\n // is available before you use it.\n self.downloadProgress = [[FIRModelManager modelManager] downloadModel:frModel\n conditions:conditions];\n\nIf you want to get the download status with `NSNotificationCenter`, register\nobservers for `FIRModelDownloadDidSucceedNotification` and\n`FIRModelDownloadDidFailNotification`. Be sure to use a weak reference to\n`self` in the observer block, since downloads can take some time, and the\noriginating object can be freed by the time the download finishes. \n\n __block MyViewController *weakSelf = self;\n\n [NSNotificationCenter.defaultCenter\n addObserverForName:FIRModelDownloadDidSucceedNotification\n object:nil\n queue:nil\n usingBlock:^(NSNotification * _Nonnull note) {\n if (weakSelf == nil | note.userInfo == nil) {\n return;\n }\n\n FIRTranslateRemoteModel *model = note.userInfo[FIRModelDownloadUserInfoKeyRemoteModel];\n if ([model isKindOfClass:[FIRTranslateRemoteModel class]]\n && model == frModel) {\n // The model was downloaded and is available on the device\n }\n }];\n\n [NSNotificationCenter.defaultCenter\n addObserverForName:FIRModelDownloadDidFailNotification\n object:nil\n queue:nil\n usingBlock:^(NSNotification * _Nonnull note) {\n if (weakSelf == nil | note.userInfo == nil) {\n return;\n }\n\n NSError *error = note.userInfo[FIRModelDownloadUserInfoKeyError];\n }];"]]