带有列表视图的sherlock片段

Question

大家好我试图在listview中显示json数据列表我的类已经扩展，SherlockFragment成功获取数据但无法将数据保存在列表中。为了显示数据，我创建了一个用baseadapter类扩展的类。它显示在这里是我的以下代码，任何人都可以对此有所了解。

提前致谢

  public class AboutMeFragment extends SherlockFragment {   
  String add_users;
  View rootView;
  ArrayList<HashMap<String, String>> contactList;
  String getQuestionsStr,idStr,getMaxAnsLengthStr,userIdStr,userRankStr;
  ListView list;

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
        Bundle savedInstanceState) {
     rootView = inflater.inflate(R.layout.fragment_aboutme,
            container, false);  
    contactList = new ArrayList<HashMap<String, String>>();

    new CheckLoginAboutmen().execute();     

    return rootView;
}   
private class CheckLoginAboutmen extends AsyncTask<Void,Void,Void>{ 
    String json;
    String outputData = null;   

    @Override
    protected Void doInBackground(Void... args) {
        // TODO Auto-generated method stub
        List<NameValuePair> params = new ArrayList<NameValuePair>(1);
        //      params.add(new BasicNameValuePair("LoginName", loginStr));
        params.add(new BasicNameValuePair("UserID", "195"));

        ServiceHandler sh = new ServiceHandler();
        add_users = getString(R.string.about_me);
        json = sh.makeServiceCall(add_users, ServiceHandler.POST,params);
        Log.d("Create Prediction Request: ", "> " + json);
        System.out.println("The returned JSON Value is..."+json);           
        try{                
            JSONArray jsonArray = new JSONArray(json);

            if(json != null){

                HashMap<String, String> contact = null;                 
                for(int i =0;i<jsonArray.length();i++){                     
                    contact = new HashMap<String, String>();                    
                    JSONObject c = jsonArray.getJSONObject(i);                        
                     getQuestionsStr = c.getString("GetQuestion");
                     idStr = c.getString("_id");
                     getMaxAnsLengthStr = c.getString("MaxAnswerLength");
                     userIdStr = c.getString("UserId");
                     userRankStr = c.getString("UserRank");

                    System.out.println("The Fetched Id is...."+idStr+"\n"+getQuestionsStr+"\n"+getMaxAnsLengthStr+"\n"+userIdStr+"\n"+userRankStr);     
                    contact.put("getQuestionsStr", getQuestionsStr);                        
                }
                contactList.add(contact);
            }
        }catch(Exception e){
            e.printStackTrace();
        }
        return null;
    }

    @Override
    protected void onPostExecute(Void result) 
    {
        super.onPostExecute(result);            
        list = (ListView)rootView.findViewById(R.id.listView1);

    //  ListViewAdapter la = new ListViewAdapter(getActivity().getBaseContext(),contactList);

        ListViewAdapter la = new ListViewAdapter(getActivity(),contactList);
        System.out.println(getActivity()+"\n"+contactList);

        list.setAdapter(la);
    }
   }
  }

这是我的ListViewAdapter类代码

  public class ListViewAdapter extends BaseAdapter{ 
Context context;
ArrayList<HashMap<String, String>> data;
String question;
HashMap<String, String> resultp = new HashMap<String, String>();    

  /*    public ListViewAdapter(Context baseContext,
        ArrayList<HashMap<String, String>> contactList) {
    // TODO Auto-generated constructor stub
       this.context = context;
       data = contactList;

  }*/

SherlockFragmentActivity sfa;
FragmentActivity fa;

/*public ListViewAdapter(SherlockFragmentActivity sherlockActivity,
        ArrayList<HashMap<String, String>> contactList) {
    // TODO Auto-generated constructor stub

    this.sfa = sherlockActivity;
    data = contactList;
}*/



public ListViewAdapter(FragmentActivity activity,
        ArrayList<HashMap<String, String>> contactList) {
    // TODO Auto-generated constructor stub

    this.fa = activity;
    data = contactList;
}
@Override
public int getCount() {
    // TODO Auto-generated method stub
    return data.size();
}
@Override
public Object getItem(int position) {
    // TODO Auto-generated method stub
    return null;
}
@Override
public long getItemId(int position) {
    // TODO Auto-generated method stub
    return 0;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
    // TODO Auto-generated method stub
    View itemView = null;
    AboutMeFragment amf = new AboutMeFragment();    

        LayoutInflater inflater = (LayoutInflater)fa.getSystemService(Context.LAYOUT_INFLATER_SERVICE);

    //  LayoutInflater inflater = (LayoutInflater)sfa.getSystemService(Context.LAYOUT_INFLATER_SERVICE);    

    itemView = inflater.inflate(R.layout.list_item_view, parent,false);
    resultp.get(position);
    TextView textView1_lv_123 = (TextView)itemView.findViewById(R.id.textView1_lv_123);
    textView1_lv_123.setText(resultp.get(amf.getQuestionsStr));

    return itemView;
  }
 }