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;
??? ??}
??? ?}
??
???????
??? }
}
