pod 'Firebase/MLCommon', '6.25.0'
pod 'Firebase/MLNLSmartReply', '6.25.0'
프로젝트의 포드를 설치하거나 업데이트한 후 .xcworkspace를 사용하여 Xcode 프로젝트를 열어야 합니다.
앱에서 Firebase를 가져옵니다.
Swift
importFirebase
Objective-C
@importFirebase;
1. 대화 기록 객체 만들기
스마트 답장을 생성하려면 ML Kit에 시간순으로 정렬된 TextMessage 객체의 배열을 전달합니다. 가장 오래된 타임스탬프가 먼저 나와야 합니다. 사용자가 메시지를 송수신할 때마다 메시지, 타임스탬프, 메시지 발신자의 사용자 ID를 대화 기록에 추가합니다.
사용자 ID는 대화 내에서 발신자를 고유하게 식별하는 임의의 문자열일 수 있습니다. 사용자 ID가 사용자 데이터와 일치할 필요는 없으며, 스마트 답장 생성기의 호출 또는 대화 간에 사용자 ID의 일관성이 없어도 됩니다.
답장을 추천하려는 사용자가 보낸 메시지인 경우 isLocalUser를 true로 설정합니다.
Swift
varconversation:[TextMessage]=[]// Then, for each message sent and received:letmessage=TextMessage(text:"How are you?",timestamp:Date().timeIntervalSince1970,userID:"userId",isLocalUser:false)conversation.append(message)
Objective-C
NSMutableArray*conversation=[NSMutableArrayarray];// Then, for each message sent and received:FIRTextMessage*message=[[FIRTextMessagealloc]initWithText:@"How are you?"timestamp:[NSDatedate].timeIntervalSince1970userID:userIdisLocalUser:NO];[conversationaddObject:message];
대화 기록 객체의 예시는 다음과 같습니다.
타임스탬프
사용자 ID
로컬 사용자 여부
메시지
Thu Feb 21 13:13:39 PST 2019
참
are you on your way?
Thu Feb 21 13:15:03 PST 2019
FRIEND0
거짓
Running late, sorry!
위의 예시에서 가장 최근 메시지는 로컬 사용자가 보낸 것이 아닙니다. 이 점이 중요한 이유는 ML Kit는 앱 사용자, 즉 로컬 사용자가 보낼 답장을 추천하기 때문입니다. ML Kit에 전달하는 대화 로그가 사용자가 답장을 보내려고 하는 메시지로 끝나는지 확인해야 합니다.
2. 메시지 답장 가져오기
메시지에 대한 스마트 답장을 생성하려면 SmartReply의 인스턴스를 가져와 suggestReplies(for:completion:) 메서드에 대화 기록을 전달하세요.
Swift
letnaturalLanguage=NaturalLanguage.naturalLanguage()naturalLanguage.smartReply().suggestReplies(for:conversation){result,erroringuarderror==nil,letresult=resultelse{return}if(result.status==.notSupportedLanguage){// The conversation's language isn't supported, so the// the result doesn't contain any suggestions.}elseif(result.status==.success){// Successfully suggested smart replies.// ...}}
Objective-C
FIRNaturalLanguage*naturalLanguage=[FIRNaturalLanguagenaturalLanguage];FIRSmartReply*smartReply=[naturalLanguagesmartReply];[smartReplysuggestRepliesForMessages:inputTextcompletion:^(FIRSmartReplySuggestionResult*_Nullableresult,NSError*_Nullableerror){if(error||!result){return;}if(result.status==FIRSmartReplyResultStatusNotSupportedLanguage){// The conversation's language isn't supported, so the// the result doesn't contain any suggestions.}elseif(result.status==FIRSmartReplyResultStatusSuccess){// Successfully suggested smart replies.// ...}}];]
작업이 성공할 경우 완료 핸들러에 SmartReplySuggestionResult 객체가 전달됩니다. 이 객체에 사용자에게 표시할 수 있는 최대 3개의 추천 답장 목록이 포함됩니다.
[null,null,["최종 업데이트: 2025-08-16(UTC)"],[],[],null,["You can use ML Kit to generate message replies using an on-device\nmodel.\n\nTo generate smart replies, you pass ML Kit a log of recent messages in a\nconversation. If ML Kit determines the conversation is in English, and that\nthe conversation doesn't have potentially sensitive subject matter, ML Kit\ngenerates up to three replies, which you can suggest to your user.\n\n\u003cbr /\u003e\n\nBefore you begin\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/MLCommon', '6.25.0'\n pod 'Firebase/MLNLSmartReply', '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\n1. Create a conversation history object\n\nTo generate smart replies, you pass ML Kit a chronologically-ordered array of\n`TextMessage` objects, with the earliest timestamp first. Whenever the user\nsends or receives a message, add the message, its timestamp, and the message\nsender's user ID to the conversation history.\n\nThe user ID can be any string that uniquely identifies the sender within the\nconversation. The user ID doesn't need to correspond to any user data,\nand the user ID doesn't need to be consistent between conversations or\ninvocations of the smart reply generator.\n\nIf the message was sent by the user you want to suggest replies to, set\n`isLocalUser` to true. \n\nSwift \n\n var conversation: [TextMessage] = []\n\n // Then, for each message sent and received:\n let message = TextMessage(\n text: \"How are you?\",\n timestamp: Date().timeIntervalSince1970,\n userID: \"userId\",\n isLocalUser: false)\n conversation.append(message)\n\nObjective-C \n\n NSMutableArray *conversation = [NSMutableArray array];\n\n // Then, for each message sent and received:\n FIRTextMessage *message = [[FIRTextMessage alloc]\n initWithText:@\"How are you?\"\n timestamp:[NSDate date].timeIntervalSince1970\n userID:userId\n isLocalUser:NO];\n [conversation addObject:message];\n\nA conversation history object looks like the following example:\n\n| Timestamp | User ID | Local User? | Message |\n|------------------------------|---------|-------------|----------------------|\n| Thu Feb 21 13:13:39 PST 2019 | | true | are you on your way? |\n| Thu Feb 21 13:15:03 PST 2019 | FRIEND0 | false | Running late, sorry! |\n\nNote that the most recent message in the example above is from a non-local\nuser. This is important because ML Kit suggests replies intended to be sent\nby the user of your app: the local user. You should be sure you're passing\nML Kit a conversation log that ends with a message to which your user might\nwant to reply.\n\n2. Get message replies\n\nTo generate smart replies to a message, get an instance of `SmartReply` and pass\nthe conversation history to its `suggestReplies(for:completion:)` method: \n\nSwift \n\n let naturalLanguage = NaturalLanguage.naturalLanguage()\n naturalLanguage.smartReply().suggestReplies(for: conversation) { result, error in\n guard error == nil, let result = result else {\n return\n }\n if (result.status == .notSupportedLanguage) {\n // The conversation's language isn't supported, so the\n // the result doesn't contain any suggestions.\n } else if (result.status == .success) {\n // Successfully suggested smart replies.\n // ...\n }\n }\n\nObjective-C \n\n FIRNaturalLanguage *naturalLanguage = [FIRNaturalLanguage naturalLanguage];\n FIRSmartReply *smartReply = [naturalLanguage smartReply];\n [smartReply suggestRepliesForMessages:inputText\n completion:^(FIRSmartReplySuggestionResult * _Nullable result,\n NSError * _Nullable error) {\n if (error || !result) {\n return;\n }\n if (result.status == FIRSmartReplyResultStatusNotSupportedLanguage) {\n // The conversation's language isn't supported, so the\n // the result doesn't contain any suggestions.\n } else if (result.status == FIRSmartReplyResultStatusSuccess) {\n // Successfully suggested smart replies.\n // ...\n }\n }];\n ]\n\nIf the operation succeeds, a `SmartReplySuggestionResult` object is passed to\nthe completion handler. This object contains a list of up to 3 suggested\nreplies, which you can present to your user: \n\nSwift \n\n for suggestion in result.suggestions {\n print(\"Suggested reply: \\(suggestion.text)\")\n }\n\nObjective-C \n\n for (FIRSmartReplySuggestion *suggestion in result.suggestions) {\n NSLog(@\"Suggested reply: %@\", suggestion.text);\n }\n\nNote that ML Kit might not return results if the model isn't confident in\nthe relevance of the suggested replies, the input conversation isn't in\nEnglish, or if the model detects sensitive subject matter.\n| **Known issue**: Currently, on 32-bit iOS devices, ML Kit doesn't return suggestions for any input."]]