package com.example.xml;import java.io.StringReader;import javax.xml.parsers.SAXParserFactory;import org.xml.sax.InputSource;
import org.xml.sax.XMLReader;import android.app.Activity;
import android.os.Bundle;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;public class MainActivity extends Activity {private Button start  = null;private TextView display = null;@Overridepublic void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);start = (Button)findViewById(R.id.start);start.setOnClickListener(new StartOnClickListener());}public class StartOnClickListener implements OnClickListener{public void onClick(View v) {// TODO Auto-generated method stub//注意2点，第1:字符串中如果要换行写，则应该用引号和加号来相加得到，不能直接换行写//第2点：如果字符串中有字符，则用括号里面的符合(\")代替引号。//我这里用的xml文件直接为该程序layout的布局xml文件
//            String result_str =
//            "<RelativeLayout " +
//              "  xmlns:tools=\"http://schemas.android.com/tools\" " +
//              "  android:layout_width=\"match_parent\" " +
//              "  android:layout_height=\"match_parent\" > " +
//
//             "   <Button  " +
//               "     android:id=\"@+id/start\"    " +
//                 "   android:layout_width=\"fill_parent\"    " +
//                  "  android:layout_height=\"wrap_content\"    " +
//                 "   android:layout_alignParentBottom=\"true\"    " +
//                  "  android:text=\"Start XML Parse\"    "    +
//                "    /> " +
//              "  <TextView " +
//                "    android:id=\"@+id/display\" " +
//               "     android:layout_width=\"fill_parent\"    " +
//                "    android:layout_height=\"fill_parent\"    " +
//                "    android:gravity=\"center\"    " +
//                "     android:layout_alignParentLeft=\"true\"    "    +
//                "     android:layout_above=\"@+id/start\"    "    +
//                "     android:text=\"The XML Parse Example!!\"    " +
//                "    />    " +
//        "    </RelativeLayout>";
            String result_str =         "   <Button  " +"     id=\"@+id/start\"    " +"   layoutwidth=\"fillparent\"    " +"  layoutheight=\"wrapcontent\"    " +"   layoutalignParentBottom=\"true\"    " +"  text=\"Start XML Parse\"    "    +"    </Button> " ;System.out.println(result_str);try{//创建SAX工厂SAXParserFactory factory = SAXParserFactory.newInstance();XMLReader reader = factory.newSAXParser().getXMLReader();reader.setContentHandler(new MyContentHandler());reader.parse(new InputSource(new StringReader(result_str)));}catch(Exception e) {e.printStackTrace();}}}@Overridepublic boolean onCreateOptionsMenu(Menu menu) {getMenuInflater().inflate(R.menu.activity_main, menu);return true;}
}

package com.example.xml;import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
import org.xml.sax.helpers.DefaultHandler;public class MyContentHandler extends DefaultHandler {String tagname, sid, swidth, sheight, text, salign;//当解析到标签的属性栏时调用该方法
    @Overridepublic void characters(char[] ch, int start, int length)throws SAXException {// TODO Auto-generated method stubif(tagname.equals("id"))sid = new String(ch, start, length);else if(tagname.equals("layoutwidth"))swidth = new String(ch, start, length);else if(tagname.equals("layoutheight"))sheight = new String(ch, start, length);else if(tagname.equals("layoutalignParentBottom"))salign = new String(ch, start, length);else if(tagname.equals("text"))text = new String(ch, start, length);super.characters(ch, start, length);}//解析文档结束调用
    @Overridepublic void endDocument() throws SAXException {// TODO Auto-generated method stubSystem.out.println("........end.......");super.endDocument();}//解析标签结束时调用
    @Overridepublic void endElement(String uri, String localName, String qName)throws SAXException {// TODO Auto-generated method stubif(tagname.equals("Button")) {this.printout();}super.endElement(uri, localName, qName);}//解析文档开始时调用
    @Overridepublic void startDocument() throws SAXException {// TODO Auto-generated method stubSystem.out.println("........begin.......");super.startDocument();}//标签开始时执行
    @Overridepublic void startElement(String uri, String localName, String qName,Attributes attributes) throws SAXException {// TODO Auto-generated method stubtagname = localName;if(tagname.equals("Button")) {for(int i = 0; i < attributes.getLength(); i++) {        //得到第i个属性的名字和值System.out.println(attributes.getLocalName(i) + "=" + attributes.getValue(i));}}super.startElement(uri, localName, qName, attributes);}//输出标签属性解析结果private void printout() {System.out.print("id: ");System.out.println(sid);System.out.print("layout_width: ");System.out.println(swidth);System.out.print("layout_height: ");System.out.println(sheight);System.out.print("layout_alignParentBottom: ");System.out.println(salign);System.out.print("text: ");System.out.println(text);}}