android的SAX解析XML文件的简单的例子SaxXmlDemoActivity

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android中有几种解析XML文件的方法，现在呢，看一个SAX解析XML文件的实现过程

首先看看布局的实现

notes.xml

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="fill_parent"    android:layout_height="fill_parent"    android:orientation="vertical" >    <TextView        android:layout_width="fill_parent"        android:layout_height="wrap_content"        android:text="android的SAX解析XML的测试" />    <ListView        android:id="@+id/noteslist"        android:layout_width="fill_parent"        android:layout_height="fill_parent"               /></LinearLayout>

notesdetial.xml

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="fill_parent"    android:layout_height="fill_parent"    android:orientation="vertical"    android:background="#FFFFFF" >  <LinearLayout        android:layout_width="fill_parent"        android:layout_height="wrap_content"        android:orientation="vertical" >        <LinearLayout        android:layout_width="fill_parent"        android:layout_height="50dp"        android:paddingTop="15dp"        android:orientation="horizontal" >        <ImageView              android:id="@+id/notesimg"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:paddingLeft="5dip"            android:src="@drawable/icon_default_avatar" />        <LinearLayout            android:layout_width="fill_parent"            android:layout_height="wrap_content"            android:orientation="vertical" >            <TextView                android:id="@+id/notesheaddetial"                android:layout_width="fill_parent"                android:layout_height="wrap_content"                android:paddingTop="3dp"                android:textColor="#2E8B57"                android:textSize="15sp" />            <TextView                  android:id="@+id/notestimedetial"                android:layout_width="fill_parent"                android:layout_height="wrap_content"                android:paddingTop="10dp"                  android:textColor="#292421"                android:textSize="13sp" />        </LinearLayout>    </LinearLayout>    <TextView          android:id="@+id/notestextdetial"        android:layout_width="fill_parent"        android:layout_height="fill_parent"        android:padding="15dip"         android:textColor="#000000"         />   </LinearLayout></LinearLayout>

listview_item.xml

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="fill_parent"    android:layout_height="fill_parent"    android:orientation="vertical"    android:background="#FFFFFF" >  <LinearLayout        android:layout_width="fill_parent"        android:layout_height="wrap_content"        android:orientation="vertical" >        <LinearLayout        android:layout_width="fill_parent"        android:layout_height="50dp"        android:paddingTop="15dp"        android:orientation="horizontal" >        <ImageView              android:id="@+id/notesimg"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:paddingLeft="5dip"            android:src="@drawable/icon_default_avatar" />        <LinearLayout            android:layout_width="fill_parent"            android:layout_height="wrap_content"            android:orientation="vertical" >            <TextView                android:id="@+id/noteshead"                android:layout_width="fill_parent"                android:layout_height="wrap_content"                android:paddingTop="3dp"                android:textColor="#2E8B57"                android:textSize="15sp" />            <TextView                  android:id="@+id/notestime"                android:layout_width="fill_parent"                android:layout_height="wrap_content"                android:paddingTop="10dp"                  android:textColor="#292421"                android:textSize="13sp" />        </LinearLayout>    </LinearLayout>    <TextView          android:id="@+id/notestext"        android:layout_width="fill_parent"        android:layout_height="wrap_content"        android:maxLines="5"        android:ellipsize="end"        android:padding="15dip"         android:textColor="#000000"         />    <RelativeLayout        android:layout_width="fill_parent"        android:layout_height="40dp"        android:paddingBottom="10dp"        android:paddingRight="20dp" >        <TextView            android:id="@+id/pinglun"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:layout_alignParentRight="true"             android:textColor="#2E8B57"            android:background="@drawable/con_btn_bg"            android:drawableLeft="@drawable/img_icon_comment"            android:text="评论" />        <TextView            android:id="@+id/zan"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:layout_toLeftOf="@id/pinglun"             android:textColor="#2E8B57"            android:background="@drawable/con_btn_bg"            android:drawableLeft="@drawable/img_icon_praise_clicked"            android:layout_marginRight="15dp"            android:text="赞" />    </RelativeLayout></LinearLayout></LinearLayout>

需要SAX解析的XMl文件放在raw文件下的notesax.xml

<?xml version="1.0" encoding="utf-8"?><resources>  <resource >      <noteshead> 程序员日志</noteshead>      <notestime> 1分钟前</notestime> <notestext>   对于一个程序员来说，学习的重要性相信大家都能意识得到。如何才能有效地学习，高效地学习？探讨下这个问题，我认为很有必要。每个人学习的方法和习惯可能都不尽相同，很多人习惯了在学校的学习方式，特别是很多刚出校门的人。在他们潜意识中，学习只是应付考试的一种手段，考完就一切OK了，全部还给老师了也无所谓，反正考完之后下次不会再考这么课程了(大学尤其如此)。长期的应试教育会让很多人以考试的心态来对待学习，我也是受害者之一，翻翻我硬盘中散落的各种语言编写的"hello world"，各种半成品，它们就像一张张60分、80分的试卷悄无声息地躺在某个昏暗的角落里。 </notestext>     </resource>               <resource >      <noteshead> hhe</noteshead>      <notestime> 1分钟前</notestime> <notestext> 1111</notestext>     </resource>                  <resource >      <noteshead> hhe</noteshead>      <notestime> 1分钟前</notestime> <notestext> 222</notestext>     </resource>                     <resource >      <noteshead> hhe</noteshead>      <notestime> 1分钟前</notestime> <notestext> 3</notestext>     </resource></resources>

然后呢是SAX解析XML实现活动的方法notesSAX

package com.nyist.SAX;import java.util.List;import org.xml.sax.Attributes;import org.xml.sax.SAXException;import org.xml.sax.helpers.DefaultHandler;public class notesSAX extends DefaultHandler {private List<notesGS> notesList;private notesGS notes;private String tagname;public notesSAX(List<notesGS> noteslist) {super();this.notesList = noteslist;}@Overridepublic void characters(char[] ch, int start, int length)throws SAXException {// TODO Auto-generated method stubString temp = new String(ch, start, length);if (tagname.equals("noteshead")) {notes.setNoteshead(temp);} else if (tagname.equals("notestime")) {notes.setNotestime(temp);} else if (tagname.equals("notestext")) {notes.setNotestext(temp);}super.characters(ch, start, length);}@Overridepublic void endDocument() throws SAXException {// TODO Auto-generated method stubsuper.endDocument();}@Overridepublic void endElement(String uri, String localName, String qName)throws SAXException {// TODO Auto-generated method stubif (qName.equals("resource")) {notesList.add(notes);}tagname="";super.endElement(uri, localName, qName);}@Overridepublic void startDocument() throws SAXException {// TODO Auto-generated method stubsuper.startDocument();}@Overridepublic void startElement(String uri, String localName, String qName,Attributes attributes) throws SAXException {// TODO Auto-generated method stubif (localName.equals("resource")) {notes=new notesGS();}tagname=localName;super.startElement(uri, localName, qName, attributes);}}

SAX解析XML文件的Get和Set的方法notesGS

package com.nyist.SAX;public class notesGS {private String noteshead;private String notestime;private String notestext;public String getNoteshead() {return noteshead;}public void setNoteshead(String noteshead) {this.noteshead = noteshead;}public String getNotestime() {return notestime;}public void setNotestime(String notestime) {this.notestime = notestime;}public String getNotestext() {return notestext;}public void setNotestext(String notestext) {this.notestext = notestext;}public notesGS() {super();}public void notesdetial(String noteshead, String notestime, String notestext) {this.noteshead = noteshead;this.notestext = notestext;this.notestime = notestime;}}

SaxXmlDemoActivity

package com.nyist.activity;import java.io.InputStream;import java.util.ArrayList;import java.util.List;import javax.xml.parsers.SAXParserFactory;import org.xml.sax.InputSource;import org.xml.sax.XMLReader;import com.nyist.SAX.notesGS;import com.nyist.SAX.notesSAX;import android.app.Activity;import android.content.Context;import android.content.Intent;import android.os.Bundle;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;import android.widget.AdapterView;import android.widget.BaseAdapter;import android.widget.ImageView;import android.widget.ListView;import android.widget.TextView;import android.widget.Toast;public class SaxXmlDemoActivity extends Activity {private ListView noteslistView;private MyAdapter adapter=null;List<notesGS> list=new ArrayList<notesGS>();private int images[]={R.drawable.icon_default_avatar};//      private int images[]={R.drawable.b1,R.drawable.b2,R.drawable.b3,R.drawable.b4,//R.drawable.b5,R.drawable.b6,R.drawable.b7,R.drawable.b8,R.drawable.b9,//R.drawable.b10,R.drawable.b11,R.drawable.b12,R.drawable.b13,R.drawable.b14};   public void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);                setContentView(R.layout.notes);                noteslistView=(ListView)findViewById(R.id.noteslist);        SAXParserFactory notesfactory = SAXParserFactory.newInstance();try {XMLReader reader = notesfactory.newSAXParser().getXMLReader();notesSAX notesSAX=new notesSAX(list);reader.setContentHandler(notesSAX);InputStream ip = getResources().openRawResource(R.raw.notesax);reader.parse(new InputSource(ip));} catch (Exception e) {e.printStackTrace();}adapter = new MyAdapter(this,list);noteslistView.setAdapter(adapter);//Toast.makeText(SaxXmlDemoActivity.this, "亲、你点击了我", Toast.LENGTH_SHORT).show();noteslistView.setOnItemClickListener(new  AdapterView.OnItemClickListener() {@Overridepublic void onItemClick(AdapterView<?> arg0, View arg1, int arg2,long arg3) {// TODO Auto-generated method stubIntent intent=new Intent();intent.setClass(SaxXmlDemoActivity.this,NotesDetialText.class);Toast.makeText(SaxXmlDemoActivity.this, "亲、你点", Toast.LENGTH_SHORT).show();intent.putExtra("image", arg2);intent.putExtra("noteshead", list.get(arg2).getNoteshead());intent.putExtra("notestime", list.get(arg2).getNotestime());intent.putExtra("notestext", list.get(arg2).getNotestext());     startActivity(intent);}});//Toast.makeText(SaxXmlDemoActivity.this, "亲.......", Toast.LENGTH_SHORT).show();    }     public class MyAdapter extends BaseAdapter{    private LayoutInflater myinInflater;private List<notesGS> list;public List<notesGS> getList(){return list;}public MyAdapter(Context context, List<notesGS> list) {this.myinInflater = LayoutInflater.from(context);this.list = list;}    @Override    public int getCount() {    // TODO Auto-generated method stub    return list.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) {ViewHolder holder = null;if (convertView == null) {// holder = new ViewHolder();convertView = myinInflater.inflate(R.layout.listview_item, null);holder.noteshead = (TextView) convertView.findViewById(R.id.noteshead);holder.notestime = (TextView) convertView.findViewById(R.id.notestime);holder.notestext = (TextView) convertView.findViewById(R.id.notestext);    holder.image=(ImageView)convertView.findViewById(R.id.notesimg);    convertView.setTag(holder);} else {holder = (ViewHolder) convertView.getTag();}// 设置各个Item中的组件holder.noteshead.setText(list.get(position).getNoteshead());holder.notestime.setText(list.get(position).getNotestime());holder.notestext.setText(list.get(position).getNotestext());holder.image.setImageResource(images[0]);return convertView;}        }    public final class ViewHolder {public ImageView image;public TextView noteshead;public TextView notestime;public TextView notestext;}}

NotesDetialText

package com.nyist.activity;import com.nyist.activity.R;import android.app.Activity;import android.content.Intent;import android.os.Bundle;import android.widget.TextView;public class NotesDetialText extends Activity {private int images[]={R.drawable.icon_default_avatar};private TextView noteshead,notestime,notestext;@Overridepublic void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.notesdetial);Intent intent=null;intent = getIntent();noteshead=(TextView)findViewById(R.id.notesheaddetial);notestime=(TextView)findViewById(R.id.notestimedetial);notestext=(TextView)findViewById(R.id.notestextdetial);noteshead.setText(intent.getStringExtra("noteshead"));notestime.setText(intent.getStringExtra("notestime"));notestext.setText(intent.getStringExtra("notestext"));}}

最后呢，别忘了注册Acitvity

ps：运行结果如下：