android下载解析xml

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android下载解析xml

public class MainActivity extends Activity {        protected static final String PATH = "http://192.168.37.2:8081/news/news.xml";        protected static final int TIME_OUT = 3000;        private ListView lv_news;        private Handler handler = new Handler(){            @Override            public void handleMessage(Message msg){                switch (msg.what) {                case RESULT_OK:                    List<Item> list = (List<Item>) msg.obj;                    lv_news.setAdapter(new MyAdapter(list,MainActivity.this));                    break;                case RESULT_CANCELED:                    Log.d("tag", "RESULT_CANCELED");                    break;                default:                    break;                }            }        };        @Override        protected void onCreate(Bundle savedInstanceState) {            super.onCreate(savedInstanceState);            setContentView(R.layout.activity_main);            lv_news = (ListView) findViewById(R.id.lv_news);        }        public void readNews(View view){            new Thread(new Runnable() {                @Override                public void run() {                    try {                        URL url = new URL(PATH);                        HttpURLConnection conn  = (HttpURLConnection) url.openConnection();                        conn.setRequestMethod("GET");                        conn.setReadTimeout(TIME_OUT);                        conn.connect();                        int responseCode = conn.getResponseCode();                        if (responseCode==200) {                            InputStream is = conn.getInputStream();                            List<Item> items = parserXML(is);                            handler.obtainMessage(RESULT_OK, items).sendToTarget();                        }else{                            handler.obtainMessage(RESULT_CANCELED, "发送失败").sendToTarget();                        }                    } catch (Exception e) {                        e.printStackTrace();                    }                }            }).start();        }        protected List<Item> parserXML(InputStream is) throws Exception {            XmlPullParser parser = Xml.newPullParser();            parser.setInput(is, "utf-8");            List<Item> list = null ;            Item item = null ;            int event =-1;            while((event=parser.next())!=XmlPullParser.END_DOCUMENT){                String tagName = parser.getName();                if(event == XmlPullParser.START_TAG){                    if("channel".equals(tagName)){                        list = new ArrayList<Item>();                    }                    else if ("item".equals(tagName)) {                        item = new Item();                    }else if ("title".equals(tagName)) {                        item.tile = parser.nextText();                    }else if ("description".equals(tagName)) {                        item.desc = parser.nextText();                    }else if ("image".equals(tagName)) {                        item.image = parser.nextText();                    }else if ("type".equals(tagName)) {                        item.type= parser.nextText();                    }else if ("comment".equals(tagName)) {                        item.comment= parser.nextText();                    }                }else if (event==XmlPullParser.END_TAG) {                    if("item".equals(tagName)){                        list.add(item);                    }                }            }            return list;        }    }
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