Android短信备份

MainActivity

package com.example.zong.testcopy;import android.content.ContentResolver;import android.database.Cursor;import android.net.Uri;import android.support.v4.content.ContentResolverCompat;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.view.View;import java.net.URI;import java.util.ArrayList;import java.util.List;public class MainActivity extends AppCompatActivity {    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);    }    public void click(View view) {        Uri uri = Uri.parse("content://sms/");        ContentResolver resolver = getContentResolver();        Cursor cursor = resolver.query(uri, new String[]{"address", "date", "type", "body"}, null, null, null);        List<SmsInfo> smsInfos = new ArrayList<SmsInfo>();        while (cursor.moveToNext()) {            String address = cursor.getString(0);            long date = cursor.getLong(1);            int type = cursor.getInt(2);            String body = cursor.getString(3);            SmsInfo smsInfo = new SmsInfo(date, type, body, address);            smsInfos.add(smsInfo);        }        cursor.close();        SmsUtils.backUpSms(smsInfos, this);    }}

SmsInfo

package com.example.zong.testcopy;/** * Created by Zong on 2017/6/22. */public class SmsInfo {    private long date;    private int type;    private String body;    private String address;    private int id;    public int getId(){        return id;    }    public void setId(int id) {        this.id = id;    }    public SmsInfo(){    }    public SmsInfo(long date,int type,String body,String address,int id){        this.date=date;        this.type=type;        this.body=body;        this.address=address;        this.id=id;    }    public SmsInfo(long date,int type,String body,String address){        this.date=date;        this.type=type;        this.body=body;        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;    }    public String getAddress() {        return address;    }    public void setAddress(String address) {        this.address = address;    }}

SmsUtils

package com.example.zong.testcopy;import android.content.Context;import android.os.Environment;import android.util.Xml;import android.widget.Toast;import org.xmlpull.v1.XmlSerializer;import java.io.File;import java.io.FileOutputStream;import java.io.IOException;import java.util.List;/** * Created by Zong on 2017/6/22. */public class SmsUtils {    public static void backupSms(List<SmsInfo> smsInfos, Context context) throws IOException {        try {            XmlSerializer serialier = Xml.newSerializer();            File file = new File(Environment.getExternalStoragePublicDirectory(), "sms.xml");            FileOutputStream os = new FileOutputStream(file);            serialier.setOutput(os, "utf-8");            serialier.startDocument("utf-8", true);            serialier.startTag(null, "smss");            for (SmsInfo info : smsInfos) {                serialier.startTag(null, "smss");                serialier.attribute(null, "id", info.getId() + "");                serialier.startTag(null, "body");                serialier.text(info.getBody());                serialier.endTag(null, "body");                serialier.startTag(null, "address");                serialier.text(info.getAddress());                serialier.endTag(null, "address");                serialier.startTag(null, "type");                serialier.text(info.getType() + "");                serialier.endTag(null, "type");                serialier.startTag(null, "date");                serialier.text(info.getDate() + "");                serialier.endTag(null, "date");                serialier.endTag(null, "sms");            }            serialier.endTag(null, "sms");            serialier.endDocument();            os.close();            Toast.makeText(context, "备份成功", 0).show();        } catch (Exception e) {            e.printStackTrace();            Toast.makeText(context, "备份失败", 0).show();        }    }}

AndroidMainFest

<?xml version="1.0" encoding="utf-8"?><manifest xmlns:android="http://schemas.android.com/apk/res/android"    package="com.example.zong.testcopy">    <application        android:allowBackup="true"        android:icon="@mipmap/ic_launcher"        android:label="@string/app_name"        android:supportsRtl="true"        android:theme="@style/AppTheme">        <activity android:name=".MainActivity">            <intent-filter>                <action android:name="android.intent.action.MAIN" />                <category android:name="android.intent.category.LAUNCHER" />            </intent-filter>        </activity>    </application>    <uses-permission android:name="android.permission.READ_SMS"/>    <uses-permission android:name="android.permission.WRITE_SMS"/>    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"</manifest>