/**
   * 获取要被添加的成员
   *
   * @return
   */
  private List<String> getToBeAddMembers() {
    List<String> members = new ArrayList<String>();
    int length = contactAdapter.isCheckedArray.length;
    for (int i = 0; i < length; i++) {
      String username = contactAdapter.getItem(i).getUsername();
      if (contactAdapter.isCheckedArray[i] && !exitingMembers.contains(username)) {
        members.add(username);
      }
    }

    return members;
  }
  /**
   * 获取要被添加的成员
   *
   * @return
   */
  private int[] getToBeAddMembers() {

    int length = contactAdapter.isCheckedArray.length;
    ArrayList<String> list = new ArrayList<String>();
    int[] members = null;

    for (int i = 0; i < length; i++) {
      //			String username = contactAdapter.getItem(i).getUsername();
      int username = Integer.parseInt(contactAdapter.getItem(i).getUserId());
      if (contactAdapter.isCheckedArray[i] && !exitingMembers.contains(username)) {
        list.add(username + "");
      }
      members = new int[list.size()];
      for (int j = 0; j < list.size(); j++) {
        members[j] = Integer.parseInt(list.get(j));
      }
    }

    return members;
  }