tencent cloud

// isPinned 参数为 true，表示置顶会话，否则，表示取消置顶。
String conversationID = "conversationID";
V2TIMManager.getConversationManager().pinConversation(conversationID, true, new V2TIMCallback() {
   @Override
   public void onSuccess() {
       Log.i("imsdk", "success");
   }
    @Override
   public void onError(int code, String desc) {
       Log.i("imsdk", "failure, code:" + code + ", desc:" + desc);
   }
});

// isPinned 参数为 YES，表示置顶会话，否则，表示取消置顶。
NSString *conversationID = @"conversationID";
[[V2TIMManager sharedInstance] pinConversation:conversationID isPinned:YES succ:^{
   NSLog(@"success");
} fail:^(int code, NSString *desc) {
   NSLog(@"failure, 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_;
};
V2TIMString conversationID = u8"conversationID";
bool isPinned = true;
auto callback = new Callback;
callback->SetCallback(
   [=]() {
       // 置顶会话成功
       delete callback;
   },
   [=](int error_code, const V2TIMString& error_message) {
       // 置顶会话失败
       delete callback;
   });
V2TIMManager::GetInstance()->GetConversationManager()->PinConversation(conversationID, isPinned, callback);

public void onConversationChanged(List<V2TIMConversation> conversationList) {
   // 收到会话信息变更通知
   Log.i("imsdk", "onConversationChanged");
}

- (void)onConversationChanged:(NSArray<V2TIMConversation*> *) conversationList {
   for (V2TIMConversation *conv in conversationList) {
       if ([conv.conversationID isEqualToString:self.conversationData.conversationID]) {
           // conv.isPinned 为会话置顶状态
       }
   }
}

class ConversationListener final : public V2TIMConversationListener {
public:
   void OnConversationChanged(const V2TIMConversationVector& conversationList) override {
       // 收到会话信息变更通知
   }
   // 其他成员 ...
};
// 添加会话事件监听器，注意在移除监听器之前需要保持 conversationListener 的生命期，以免接收不到事件回调
ConversationListener conversationListener;
V2TIMManager::GetInstance()->GetConversationManager()->AddConversationListener(&conversationListener);