<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context="com.example.generatexml.MainActivity" > <Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="短信备份1"
android:id="@+id/btn1"
android:onClick="backupSms1" /> <Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="短信备份2"
android:id="@+id/btn2"
android:layout_below="@id/btn1"
android:onClick="backupSms2" /> <Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="获取xml数据"
android:id="@+id/btn3"
android:layout_below="@id/btn2"
android:onClick="getXml" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/tv_get"
android:layout_below="@id/btn3"
android:onClick="getXml" />
/> </RelativeLayout>
package com.example.generatexml; import java.io.File;
import java.io.FileOutputStream;
import java.util.ArrayList;
import java.util.List; import org.xmlpull.v1.XmlSerializer; import android.os.Bundle;
import android.os.Environment;
import android.support.v7.app.ActionBarActivity;
import android.util.Xml;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.Toast; import com.example.generatexml.domain.SmsInfo; public class MainActivity extends ActionBarActivity { private List<SmsInfo> list; @Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main); list = new ArrayList<SmsInfo>();
long phone = 1880075555;
for(int i=0;i<10;i++)
{
SmsInfo info = new SmsInfo(i, System.currentTimeMillis(),"<短信内容"+i,phone+i+"",i/2+1);
list.add(info);
}
} public void backupSms1(View v){ try {
File file = new File(Environment.getExternalStorageDirectory(),"backup1.xml");
FileOutputStream fos = new FileOutputStream(file); StringBuffer sb = new StringBuffer(); sb.append("<?xml version=\"1.0\" encoding=\"utf-8\"?>"); sb.append("<smss>"); for(SmsInfo s :list)
{
sb.append("<sms>"); sb.append("<body>"+s.getBody()+"</body>");
sb.append("<type>"+s.getType()+"</type>");
sb.append("<addr>"+s.getAddr()+"</addr>");
sb.append("<date>"+s.getDate()+"</date>"); sb.append("</sms>"); } sb.append("</smss>"); fos.write(sb.toString().getBytes());
fos.close();
Toast.makeText(this, "保存成功", 0).show();
} catch (Exception e) { e.printStackTrace();
Toast.makeText(this, "保存失败", 0).show();
} } public void backupSms2(View v)
{ try {
XmlSerializer ser = Xml.newSerializer();
File file = new File(Environment.getExternalStorageDirectory(),"backup2.xml");
FileOutputStream os = new FileOutputStream(file);
ser.setOutput(os, "utf-8"); ser.startDocument("utf-8", true); ser.startTag(null, "smss"); for(SmsInfo s :list)
{
ser.startTag(null, "sms"); ser.attribute(null, "id", s.getId()+""); ser.startTag(null, "body");
ser.text(s.getBody());
ser.endTag(null, "body"); ser.startTag(null, "type");
ser.text(s.getType()+"");
ser.endTag(null, "type"); ser.startTag(null, "addr");
ser.text(s.getAddr());
ser.endTag(null, "addr"); ser.startTag(null, "date");
ser.text(s.getDate()+"");
ser.endTag(null, "date"); ser.endTag(null, "sms"); } ser.endTag(null, "smss"); ser.endDocument(); os.close(); Toast.makeText(this, "保存成功", 0).show(); } catch(Exception e) { e.printStackTrace();
Toast.makeText(this, "保存失败", 0).show();
}
} }
//解析xml文件
public void getXml(View v)
{
TextView tv = (TextView)this.findViewById(R.id.tv_get); try { InputStream is = MainActivity.this.getClassLoader().getResourceAsStream("backup2.xml");
List<SmsInfo> list = ParserXmlService.getSmsInfos(is); StringBuffer sb = new StringBuffer();
for(SmsInfo s:list)
{
sb.append(s.toString()); } tv.setText(sb.toString()); Toast.makeText(this, sb.toString(), 0).show(); } catch (Exception e) { e.printStackTrace();
Toast.makeText(this, "xml解析失败", 0).show();
} }
解析xml文件的service代码
package com.example.generatexml.service; import java.io.InputStream;
import java.util.ArrayList;
import java.util.List; import org.xmlpull.v1.XmlPullParser; import android.util.Xml; import com.example.generatexml.domain.SmsInfo; public class ParserXmlService { public static List<SmsInfo> getSmsInfos(InputStream is) throws Exception
{ System.out.println("service");
XmlPullParser parser = Xml.newPullParser();
parser.setInput(is, "utf-8");
List<SmsInfo> list = null;
SmsInfo sms = null; int type = parser.getEventType(); while(type!=XmlPullParser.END_DOCUMENT)
{ switch(type)
{
case XmlPullParser.START_TAG:
if("smss".equals(parser.getName()))
{
list = new ArrayList<SmsInfo>();
}
else if("sms".equals(parser.getName()))
{
sms = new SmsInfo();
String id = parser.getAttributeValue(0);
sms.setId(Integer.parseInt(id));
}else if("body".equals(parser.getName()))
{
String body = parser.nextText();
sms.setBody(body);
}else if("addr".equals(parser.getName()))
{
String addr = parser.nextText();
sms.setAddr(addr);
}
else if("date".equals(parser.getName()))
{
String date = parser.nextText();
sms.setDate(Long.parseLong(date));
}
else if("type".equals(parser.getName()))
{
String infoType = parser.nextText();
sms.setDate(Integer.parseInt(infoType));
} break;
case XmlPullParser.END_TAG:
if("sms".equals(parser.getName()))
{
list.add(sms);
sms = null;
}
break;
}
type = parser.next();
} return list; } }