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Last updated: 2024-07-05 18:00:24

    Overview

    The SDK provides an API for getting conversations, which can be used to get the V2TIMConversation object information of one or multiple specified conversations.

    Getting a specified conversation

    Call getConversation (Android / iOS and macOS / Windows) to get the information of a conversation, which is a V2TIMConversation object. The composition of conversationID can be referred to the Overview.
    Sample code:
    Android
    iOS and macOS
    Windows
    String conversationID = "conversationID";
    V2TIMManager.getConversationManager().getConversation(conversationID, new V2TIMValueCallback<V2TIMConversation>() {
    @Override
    public void onSuccess(V2TIMConversation v2TIMConversation) {
    Log.i("imsdk", "success");
    }
    
    @Override
    public void onError(int code, String desc) {
    Log.i("imsdk", "failure, code:" + code + ", desc:" + desc);
    }
    });
    [V2TIMManager.sharedInstance getConversation:@"conversationID" // ID of the conversation to be queried
    succ:^(V2TIMConversation *conv) {
    // The conversation obtained successfully. The `V2TIMConversation` object was returned.
    } fail:^(int code, NSString *desc) {
    // Failed to obtain
    }];
    template <class T>
    class ValueCallback final : public V2TIMValueCallback<T> {
    public:
    using SuccessCallback = std::function<void(const T&)>;
    using ErrorCallback = std::function<void(int, const V2TIMString&)>;
    
    ValueCallback() = default;
    ~ValueCallback() override = default;
    
    void SetCallback(SuccessCallback success_callback, ErrorCallback error_callback) {
    success_callback_ = std::move(success_callback);
    error_callback_ = std::move(error_callback);
    }
    
    void OnSuccess(const T& value) override {
    if (success_callback_) {
    success_callback_(value);
    }
    }
    void OnError(int error_code, const V2TIMString& error_message) override {
    if (error_callback_) {
    error_callback_(error_code, error_message);
    }
    }
    
    private:
    SuccessCallback success_callback_;
    ErrorCallback error_callback_;
    };
    
    V2TIMString conversationID = u8"conversationID";
    
    auto callback = new ValueCallback<V2TIMConversation>{};
    callback->SetCallback(
    [=](const V2TIMConversation& conversation) {
    // Obtained the conversation successfully
    delete callback;
    },
    [=](int error_code, const V2TIMString& error_message) {
    // Failed to obtain the conversation
    delete callback;
    });
    
    V2TIMManager::GetInstance()->GetConversationManager()->GetConversation(conversationID, callback);

    Getting specified conversations

    Call getConversationList (Android / iOS and macOS / Windows) to get the list of specified conversations that stores V2TIMConversation objects.
    Sample code:
    Android
    iOS and macOS
    Windows
    List<String> conversationIDList = new ArrayList<>();
    conversationIDList.add("conversationID1");
    conversationIDList.add("conversationID1");
    
    V2TIMManager.getConversationManager().getConversationList(conversationIDList, new V2TIMValueCallback<List<V2TIMConversation>>() {
    @Override
    public void onSuccess(List<V2TIMConversation> conversationList) {
    Log.i("imsdk", "success");
    }
    
    @Override
    public void onError(int code, String desc) {
    Log.i("imsdk", "failure, code:" + code + ", desc:" + desc);
    }
    });
    [V2TIMManager.sharedInstance getConversationList:@[@"convID1", @"convID2"] // List of IDs of the conversations to be queried
    succ:^(NSArray<V2TIMConversation *> *list) {
    // Conversations obtained successfully. The `list` contains `V2TIMConversation` objects.
    } fail:^(int code, NSString *desc) {
    // Failed to obtain
    }];
    template <class T>
    class ValueCallback final : public V2TIMValueCallback<T> {
    public:
    using SuccessCallback = std::function<void(const T&)>;
    using ErrorCallback = std::function<void(int, const V2TIMString&)>;
    
    ValueCallback() = default;
    ~ValueCallback() override = default;
    
    void SetCallback(SuccessCallback success_callback, ErrorCallback error_callback) {
    success_callback_ = std::move(success_callback);
    error_callback_ = std::move(error_callback);
    }
    
    void OnSuccess(const T& value) override {
    if (success_callback_) {
    success_callback_(value);
    }
    }
    void OnError(int error_code, const V2TIMString& error_message) override {
    if (error_callback_) {
    error_callback_(error_code, error_message);
    }
    }
    
    private:
    SuccessCallback success_callback_;
    ErrorCallback error_callback_;
    };
    
    V2TIMStringVector conversationIDList;
    conversationIDList.PushBack(u8"conversationID1");
    conversationIDList.PushBack(u8"conversationID2");
    
    auto callback = new ValueCallback<V2TIMConversationVector>{};
    callback->SetCallback(
    [=](const V2TIMConversationVector& conversationList) {
    // Obtained multiple conversations successfully
    delete callback;
    },
    [=](int error_code, const V2TIMString& error_message) {
    // Failed to obtain multiple conversations
    delete callback;
    });
    
    V2TIMManager::GetInstance()->GetConversationManager()->GetConversationList(conversationIDList, callback);
    
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