短信备份

实体类：

package com.example.sms.entities;

public class SmsInfo {

private int id;

private String address;

private long date;

private int type;

private String body;

public SmsInfo(int id, String address, long date, int type, String body) {

super();

this.id = id;

this.address = address;

this.date = date;

this.type = type;

this.body = body;

}

@Override

public String toString() {

return "SmsInfo [id=" + id + ", address=" + address + ", date=" + date

+ ", type=" + type + ", body=" + body + "]";

}

public SmsInfo() {

super();

// TODO Auto-generated constructor stub

}

public int getId() {

return id;

}

public void setId(int id) {

this.id = id;

}

public String getAddress() {

return address;

}

public void setAddress(String address) {

this.address = address;

}

public long getDate() {

return date;

}

public void setDate(long date) {

this.date = date;

}

public int getType() {

return type;

}

public void setType(int type) {

this.type = type;

}

public String getBody() {

return body;

}

public void setBody(String body) {

this.body = body;

}

}

2:MainActivity.java：

package com.example.sms;

import java.io.FileOutputStream;

import java.util.ArrayList;

import java.util.List;

import org.xmlpull.v1.XmlSerializer;

import com.example.sms.entities.SmsInfo;

import android.net.Uri;

import android.os.Bundle;

import android.app.Activity;

import android.content.ContentResolver;

import android.database.Cursor;

import android.util.Xml;

import android.view.Menu;

import android.view.View;

public class MainActivity extends Activity {

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

}

/*

* 短信备份

*/

public void backupSms(View v) {

//查出所有的短信信息

Uri uri = Uri.parse("content://sms/");

ContentResolver resolver = getContentResolver();

Cursor cursor = resolver.query(uri,new String[]{"_id", "address", "date", "type", "body"}, null, null, null);

if(cursor!=null && cursor.getCount()>0) {

ArrayList<SmsInfo> smsList = new ArrayList<SmsInfo>();

SmsInfo sms;

while(cursor.moveToNext()) {

sms = new SmsInfo();

sms.setId(cursor.getInt(0));

sms.setAddress(cursor.getString(1));

sms.setDate(cursor.getLong(2));

sms.setType(cursor.getInt(3));

sms.setBody(cursor.getString(4));

}

cursor.close();

//2.序列化本地

writeToLocal(smsList);

}

}

private void writeToLocal(List<SmsInfo> smsList) {

XmlSerializer serializer = Xml.newSerializer();

try {

serializer.setOutput(new FileOutputStream("/mnt/sdcard/sms.xml"),"utf-8");

serializer.startDocument("utf-8", true);

serializer.startTag(null, "smss");

for (SmsInfo smsInfo : smsList) {

serializer.startTag(null, "sms");

serializer.attribute(null,"id",String.valueOf(smsInfo.getId()));

//写号码

serializer.startTag(null, "address");

serializer.text(smsInfo.getAddress());

serializer.endTag(null, "address");

//写时间

serializer.startTag(null, "date");

serializer.text(String.valueOf(smsInfo.getDate()));

serializer.endTag(null, "date");

//写类型

serializer.startTag(null, "type");

serializer.text(String.valueOf(smsInfo.getType()));

serializer.endTag(null,"type");

//写内容

serializer.startTag(null,"body");

serializer.text(smsInfo.getBody());

serializer.endTag(null,"body");

serializer.endTag(null, "sms");

}

serializer.endTag(null,"smss");

serializer.endDocument();

} catch (Exception e) {

e.printStackTrace();

}

}

}

3:

<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"

tools:context=".MainActivity" >

<TextView

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_centerInParent="true"

android:onClick="backupSms"

android:text="短信备份" />

</RelativeLayout>