UserQuery

       mUserListQuery = SendBird.createUserListQuery();
       
       //Setting limit of users
       mUserListQuery.setLimit(30);

        if (mUserListQuery != null && mUserListQuery.hasNext() && !mUserListQuery.isLoading()) {
            mUserListQuery.next(new UserListQuery.UserListQueryResultHandler() {
                @Override
                public void onResult(List<User> users, SendBirdException e) {
                    for (User user : users) {
                        Log.d(TAG, user.getUserId() + ":" + user.getNickname());
                    }
                    
                    // Use List of users to set items in your custom view
                 }