在android-Quickblox中检查两个用户之间是否存在对话

import com.quickblox.chat.QBChatService;
import com.quickblox.chat.model.QBChatDialog;
import com.quickblox.core.QBEntityCallback;
import com.quickblox.core.exception.QBResponseException;
import com.quickblox.core.request.QBRequestGetBuilder;

import java.util.List;

public void checkIfDialogExists(int userId) {
    QBRequestGetBuilder requestBuilder = new QBRequestGetBuilder();
    requestBuilder.eq("occupant_id", userId);

    QBChatService.getChatDialogs(null, requestBuilder).performAsync(new QBEntityCallback<ArrayList<QBChatDialog>>() {
        @Override
        public void onSuccess(ArrayList<QBChatDialog> dialogs, Bundle params) {
            boolean dialogExists = false;
            for (QBChatDialog dialog : dialogs) {
                if (dialog.getOccupants().contains(userId)) {
                    dialogExists = true;
                    break;
                }
            }
            if (dialogExists) {
                System.out.println("对话存在");
            } else {
                System.out.println("对话不存在");
            }
        }

        @Override
        public void onError(QBResponseException exception) {
            System.out.println("获取对话列表失败: " + exception.getMessage());
        }
    });
}