tencent cloud

NSString *conversationID = @"conversationID";
[[V2TIMManager sharedInstance] deleteConversation:conversationID
    succ:^{
        // The conversation is deleted successfully.
    }
    fail:^(int code, NSString *desc) {
        // Failed to delete the conversation
    }];

class Callback final : public V2TIMCallback {
public:
    using SuccessCallback = std::function<void()>;
    using ErrorCallback = std::function<void(int, const V2TIMString&)>;

    Callback() = default;
    ~Callback() override = default;

    void SetCallback(SuccessCallback success_callback, ErrorCallback error_callback) {
        success_callback_ = std::move(success_callback);
        error_callback_ = std::move(error_callback);
    }
    void OnSuccess() override {
        if (success_callback_) {
            success_callback_();
        }
    }
    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 groupName = u8"conversationID";
auto callback = new Callback;
callback->SetCallback(
    [=]() {
        // The conversation is deleted successfully.
        delete callback;
    },
    [=](int error_code, const V2TIMString& error_message) {
        // Failed to delete the conversation
        delete callback;
    });
V2TIMManager::GetInstance()->GetConversationManager()->DeleteConversationGroup(groupName, callback);

NSMutableArray *conversationIDList = [NSMutableArray array];
[conversationIDList addObject:@"c2c_userID"];
[conversationIDList addObject:@"group_groupID"];
[[V2TIMManager sharedInstance] deleteConversationList:conversationIDList
    clearMessage:true
    succ:^(NSArray<V2TIMConversationOperationResult *> *results) {
        // The conversations are deleted successfully.
        for (V2TIMConversationOperationResult *result in results) {
            int code = result.resultCode;
            NSString *info = result.resultInfo;
            NSString *conversationID = result.conversationID;
        }
    }
    fail:^(int code, NSString *desc) {
        // Failed to delete the conversations
    }];

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"c2c_userID");
conversationIDList.PushBack(u8"group_groupID");
auto callback = new ValueCallback<V2TIMConversationOperationResultVector>{};
callback->SetCallback(
    [=](const V2TIMConversationOperationResultVector& results) {
        // The conversations are deleted successfully.
        for (size_t i = 0; i < results.Size(); ++i) {
            const V2TIMConversationOperationResult& result = results[i];
            int code = result.resultCode;
            V2TIMString info = result.resultInfo;
            V2TIMString conversationID = result.conversationID;
        }
        delete callback;
    },
    [=](int error_code, const V2TIMString& error_message) {
        // Failed to delete the conversations
        delete callback;
    });
V2TIMManager::GetInstance()->GetConversationManager()->DeleteConversationList(conversationIDList, true, callback);

- (void)onConversationDeleted:(NSArray<NSString *> *)conversationIDList {
    // Received the notification that the conversation is deleted
}