tencent cloud

V2TIMManager.getMessageManager().clearC2CHistoryMessage(userID, new V2TIMCallback() {
@Override
public void onSuccess() {
    // 清空单聊消息成功
}
    @Override
public void onError(int code, String desc) {
    // 清空单聊消息失败
}
});

[V2TIMManager.sharedInstance clearC2CHistoryMessage:userID
                                              succ:^{
   NSLog(@"清空单聊消息成功");
} fail:^(int code, NSString *desc) {
   NSLog(@"清空单聊消息失败, code: %d, desc: %@", code, desc);
}];

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_;
};
auto callback = new Callback;
callback->SetCallback(
   [=]() {
       // 清空单聊消息成功
       delete callback;
   },
   [=](int error_code, const V2TIMString& error_message) {
       // 清空单聊消息成功
       delete callback;
   });

V2TIMManager.getMessageManager().clearGroupHistoryMessage(GroupID, new V2TIMCallback() {
@Override
public void onSuccess() {
    // 清空群聊消息成功
}
    @Override
public void onError(int code, String desc) {
    // 清空群聊消息失败
}
});

[[V2TIMManager sharedInstance] clearGroupHistoryMessage:groupID
                                                  succ:^{
   NSLog(@"清空群聊消息成功");
} fail:^(int code, NSString *desc) {
   NSLog(@"清空群聊消息失败, code: %d, desc: %@", code, desc);
}];

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_;
};
auto callback = new Callback;
callback->SetCallback(
   [=]() {
       // 清空群聊消息成功
       delete callback;
   },
   [=](int error_code, const V2TIMString& error_message) {
       // 清空群聊消息失败
       delete callback;
   });
V2TIMManager::GetInstance()->GetMessageManager()->ClearGroupHistoryMessage(groupID, callback);