/**
   * @param mode
   * @param newStatus
   */
  private void refreshList(int mode, List<Status> newStatus) {
    if (newStatus != null) {
      if (newStatus.size() > 0) {
        switch (mode) {
          case Task.TA_GETSTATUS_MODE_FIRSTTIME:
            currentStatus = newStatus;
            adapter = new TaskAdapter(this, currentStatus);
            xlist_task.setAdapter(adapter);
            lastestUpdata = TimeUtil.setLastestUpdata();
            break;

          case Task.TA_GETSTATUS_MODE_LOADMORE:
            currentStatus.addAll(newStatus);
            adapter.notifyDataSetChanged();
            break;

          default:
            break;
        }
        changeListData();
      } else {
        LinearLayout layout = (LinearLayout) findViewById(R.id.layout_no_info);
        TextView txt_no_info = (TextView) findViewById(R.id.txt_no_info);
        txt_no_info.setText("还没有报名过任务");
        layout.setVisibility(View.VISIBLE);
      }
    } else {
      xlist_task.stopRefresh();
    }

    /*把标志设为false,这样才能再开获取status的网络连接*/
    isRefresh = false;
  }
 /*
  * 改变list相关的保存的数据
  */
 private void changeListData() {
   xlist_task.stopRefresh();
   xlist_task.stopLoadMore();
   xlist_task.setRefreshTime(lastestUpdata);
   if (currentStatus.size() >= 10) {
     oldestStatusId = currentStatus.get(currentStatus.size() - 1).getStatusId();
     xlist_task.setPullLoadEnable(true);
   }
 }
  private void initView() {
    btn_back = (Button) findViewById(R.id.btn_back_my_signup_status);
    btn_back.setOnClickListener(
        new OnClickListener() {
          public void onClick(View v) {
            finish();
          }
        });

    xlist_task = (XListView) findViewById(R.id.xlist_my_signup_status);
    xlist_task.setPullLoadEnable(false);
    if (currentStatus != null) {
      oldestStatusId = currentStatus.get(currentStatus.size() - 1).getStatusId();
      adapter = new TaskAdapter(this, currentStatus);
      xlist_task.setAdapter(adapter);
    }
    xlist_task.setOnItemClickListener(
        new OnItemClickListener() {
          @Override
          public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, long arg3) {
            if (currentStatus.size() >= arg2) {
              clickPosition = arg2 - 1;
              /*全局变量传递数据*/
              Intent intent = new Intent(MySignUpStatusActivity.this, TaskDetailActivity.class);
              TaUpstairsApplication app = (TaUpstairsApplication) getApplication();
              app.setStatus(currentStatus.get(arg2 - 1));
              startActivityForResult(intent, IntentString.RequestCode.MYRELEASESTATUS_TASKDETAIL);
            }
          }
        });
    xlist_task.setXListViewListener(
        new IXListViewListener() {
          @Override
          public void onRefresh() {
            getStatusFromTask(Task.TA_GETSTATUS_MODE_FIRSTTIME, null);
          }

          @Override
          public void onLoadMore() {
            getStatusFromTask(Task.TA_GETSTATUS_MODE_LOADMORE, oldestStatusId);
          }
        });
  }