最近写的一个解析网页的应用，用到了图片下载，SAX解析,AsyncTack，Thread,请大虾们指教

//这个是SAX解析的所有

 

public class XMLContentHandler extends DefaultHandler  {

 private boolean IsDisplayNameTag =false;
 private boolean IsAvatarTag =false;
 private boolean IsReputationTotalTag =false;
 private boolean IsUserTag =false;
 private String  DisplayName="DisplayName";
 private String  Avatar="Avatar";
 private String  ReputationTotal="ReputationTotal";
 private Users users ;
 private List<Users> list;
 
  public List<Users> getUsers() {  
         return list;  
     }
 
 //打开xml文档的回调函数
 @Override
 public void startDocument() throws SAXException{
  //这里做list的初始化工作 
  Log.e("+++++++++>1","1");
  list =new ArrayList<Users>();
  
 }
 
 

 //一旦发现元素开始标记就回调此函数
 @Override
 public void startElement(String uri, String localName, String qName,
   Attributes attributes) throws SAXException {
  if (localName.equals("User")) {
   users =new Users();
   IsUserTag =true;
  }
  if (localName.equals(DisplayName)) {
   IsDisplayNameTag=true;
  }else if (localName.equals(Avatar)) {
   IsAvatarTag =true;
  }else if (localName.equals(ReputationTotal)) {
   IsReputationTotalTag =true;
  }
  
 }
 //一发现元素值或属性值就回调此函数
 @Override
 public void characters(char[] ch, int start, int length)
   throws SAXException {
  String data =new String(ch,start,length);
  if (IsDisplayNameTag) {
   users.setDisplayName(data);
  }else if (IsAvatarTag) {
   users.setAvatar(data);
  }else if (IsReputationTotalTag) {
   users.setReputationTotal(data);
//   Log.i("uuuuuuuuuuuu3",data);
  }else {
   
  }
 }
 
 //一旦发现元素结束标记就回调此函数
 @Override
 public void endElement(String uri, String localName, String qName)
   throws SAXException {
  if (localName.equals("User")) {
   IsUserTag=false;
  
   list.add(users);
  }
  if (localName.equals(DisplayName)) {
   IsDisplayNameTag =false;
  }else if (localName.equals(Avatar)) {
   IsAvatarTag =false;
  }else if (localName.equals(ReputationTotal)) {
   IsReputationTotalTag =false;
  }
  
 }
 //关闭xml文档的回调函数
 @Override
 public void endDocument() throws SAXException {
  // TODO Auto-generated method stub
  Log.e("+++++++++>5","5");
  super.endDocument();
  
 }

}

 

//  解析的标签
  * User DisplayName  Avatar ReputationTotal需要解析的标签
  * */
public class Users {
 private String User;
 private String DisplayName;
 private String Avatar;
 private String ReputationTotal;
 public String getUser() {
  return User;
 }
 public void setUser(String user) {
  User = user;
 }
 public String getDisplayName() {
  return DisplayName;
 }
 public void setDisplayName(String displayName) {
  DisplayName = displayName;
 }
 public String getAvatar() {
  return Avatar;
 }
 public void setAvatar(String avatar) {
  Avatar = avatar;
 }
 public String getReputationTotal() {
  return ReputationTotal;
 }
 public void setReputationTotal(String reputationTotal) {
  ReputationTotal = reputationTotal;
 }
 
}

 

 

 

 

/**自定义的MyAdapter 继承BaseAdapter

*最下面是一个ASYNCTACK的异步刷新

*

*/

public class MyAdapter extends BaseAdapter {
 private LayoutInflater inflater;
 private List<Users> items;
 public MyAdapter(Context context,List<Users> it){
  inflater =LayoutInflater.from(context);
  items =it;
 }

 @Override
 public int getCount() {
  // TODO Auto-generated method stub
  return items.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) {
  LinearLayout layout =(LinearLayout) inflater.inflate(R.layout.listone, null);
  Users user =items.get(position);
  TextView txtname =(TextView) layout.findViewById(R.id.txtup);
  txtname.setTextColor(Color.BLACK);
  txtname.setTextSize(20);
  txtname.setText(user.getDisplayName());
  TextView txtrep = (TextView) layout.findViewById(R.id.txtdown);
  txtname.setTextColor(Color.BLACK);
  txtrep.setTextSize(10);
  txtrep.setText(user.getReputationTotal());
  ImageView img =(ImageView) layout.findViewById(R.id.img01);
  String image =user.getAvatar();
  img.setTag(image);
  new AsyncLoader().execute(img);
  img.setDrawingCacheEnabled(true);
  return layout;
 }
 
 
  //继承于AsyncTask 刷新ImageView,未实现图片下载到SD卡的功能；
    class AsyncLoader extends AsyncTask <ImageView, Void, Bitmap>{
     private ImageView gView;
     protected Bitmap doInBackground(ImageView... views) {
      Bitmap bmp = null;
      ImageView view = views[0];
      // 根据iconUrl获取图片并渲染，iconUrl的url放在了view的tag中。
      if (view.getTag() != null) {
       try {
        URL url = new URL(view.getTag().toString());
        GetImage image =new GetImage();
        bmp =image.getImage(url);
        
       } catch (Exception e) {
        Log.v("img", e.getMessage());
        return null;
       }
      }
      this.gView = view;
      return bmp;
     }
 
     protected void onPostExecute(Bitmap bm) {
      if (bm != null) {
       this.gView.setImageBitmap(bm);
       this.gView = null;
      }
     }
  
       
    }

}