1 package com.bawei.day14_xmlpull;

  2

  3 import java.io.IOException;

  4 import java.io.InputStream;

  5 import java.util.ArrayList;

  6 import java.util.List;

  7

  8 import org.xmlpull.v1.XmlPullParser;

  9 import org.xmlpull.v1.XmlPullParserException;

 10

 11 import android.os.Bundle;

 12 import android.app.Activity;

 13 import android.util.Xml;

 14 import android.view.Menu;

 15 import android.widget.ArrayAdapter;

 16 import android.widget.ListView;

 17 import android.widget.TextView;

 18

 19 public class MainActivity extends Activity {

 20

 21     private ListView mStuListView;

 22     private List<Student> stus;

 23

 24     @Override

 25     protected void onCreate(Bundle savedInstanceState) {

 26         super.onCreate(savedInstanceState);

 27         setContentView(R.layout.activity_main);

 28         TextView tv=(TextView) findViewById(R.id.tv);

 29         mStuListView = (ListView) findViewById(R.id.stuList);

 30         try {
           //调用方法

 31         parseStudent(getAssets().open("persons.xml"));

 32             if (stus != null && stus.size() > 0) {

 33                 ArrayAdapter<Student> adapter = new ArrayAdapter<Student>(this,    android.R.layout.simple_list_item_1, stus);

 34                 mStuListView.setAdapter(adapter);

 35             }

 36

 37         } catch (IOException e) {

 38             // TODO Auto-generated catch block

 39             e.printStackTrace();

 40         }

 41

 42     }

 43

 44     private List<Student> parseStudent(InputStream is) {

 45         stus = new ArrayList<Student>();
            //创建pull解析器

 46         XmlPullParser parser = Xml.newPullParser();

 47         try {
               //把需要解析的数据添加到解析器中,并设置数据格式

 48             parser.setInput(is, "utf-8");
                //通过解析器触发第一次事件，并获取事件类型码

 49             int eventType = parser.getEventType();

 50             //定义用来存储标签名称的变量

 51             String tagName = "";

 52             Student stu = null;
                //判断是否解析到文档末尾，没有则循环解析

 53             while (eventType != XmlPullParser.END_DOCUMENT) {

 54                 switch (eventType) {
                    //开始解析文档

 55                 case XmlPullParser.START_DOCUMENT:

 56                     break;
                    //开始解析标签

 57                 case XmlPullParser.START_TAG:
                       //得到标签名字

 58                     tagName = parser.getName();
                       //判断正在接戏的元素标签是否是person

 59                     if ("person".equals(tagName)) {

 60                         stu = new Student();

 61                         stu.setId(Integer.valueOf(parser.getAttributeValue(0)));

 62

 63                     }

 64                     break;
                      //解析到文本

 65                 case XmlPullParser.TEXT:
                       //得到当前正在解析的文本内容

 66                     String text = parser.getText();

 67                     if (stu != null) {
                              //判断正在解析的文本内容是哪个元素节点里的

 68                         if ("name".equals(tagName)) {

 69                             stu.setName(text);

 70                         } else if ("age".equals(tagName)) {

 71                             stu.setAge(Integer.parseInt(text));

 72                         }

 73                     }

 74                     break;
                    //解析到结束标签

 75                 case XmlPullParser.END_TAG:
                        //得到正在解析的元素标签名

 76                     tagName = parser.getName();
                       //得到正在解析的元素标签名是否是person

 77                     if ("person".equals(tagName)) {

 78                         stus.add(stu);

 79                         stu = null;

 80

 81                     }

 82

 83                     tagName = "";

 84                     break;

 85

 86                 }                     //本次事件处理完毕，进入下一个节点，下一个事件

 87                 eventType = parser.next();

 88             }

 89

 90         } catch (XmlPullParserException e) {

 91             // TODO Auto-generated catch block

 92             e.printStackTrace();

 93         } catch (IOException e) {

 94             // TODO Auto-generated catch block

 95             e.printStackTrace();

 96         }finally{

 97

 98                 try {

 99                     if(is!=null){

100                     is.close();

101                     }

102                 } catch (IOException e) {

103                     // TODO Auto-generated catch block

104                     e.printStackTrace();

105                 }

106

107         }

108

109         return stus;

110     }

111

112 }

import com.google.gson.Gson;

import android.os.Bundle;

import android.app.Activity;

import android.view.Menu;

import android.view.View;

import android.widget.TextView;

public class MainActivity extends Activity {

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        TextView textView = (TextView) findViewById(R.id.tv);

        try {

            InputStream is=getAssets().open("newsList.json");

            int length = is.available();

            byte[] buffer=new byte[length];

            is.read(buffer);

            String jsonStr=new String(buffer,0,length);

             Gson g=new Gson();

             SuperJsonParse sjp=g.fromJson(jsonStr,SuperJsonParse.class);

             textView.setText(sjp.toString());

        } catch (IOException e) {

            // TODO Auto-generated catch block

            e.printStackTrace();

        }

    }

}