Android SMS efficiently backs up this article and takes on an article. Use efficient ways to back up SMS--xml serializers.
Store text messages and store them in an object way. First create JavaBean:
Package com.itydl.createxml.domain;
public class Message {
private String body;
private String date;
Private String address;
Private String type;
Public String GetBody () {return body
;
}
public void Setbody (String body) {
this.body = body;
}
Public String GetDate () {return
date;
}
public void setdate (String date) {
this.date = date;
}
Public String getaddress () {return address
;
}
public void setaddress (String address) {
this.address = address;
}
Public String GetType () {return
type;
}
public void SetType (String type) {
this.type = type;
}
Public message (string body, string date, string address, String type) {
super ();
This.body = body;
This.date = date;
this.address = address;
This.type = type;
}
The
then diamante in Mainactivity is as follows:
Package Com.itydl.xmlserializer;
Import Java.io.File;
Import Java.io.FileOutputStream;
Import java.io.IOException;
Import java.util.ArrayList;
Import java.util.List;
Import Org.xmlpull.v1.XmlSerializer;
Import Com.itheima.createxml.domain.Message;
Import Android.os.Bundle;
Import android.app.Activity;
Import android.util.Xml;
Import Android.view.Menu;
Import Android.view.View;
To better preserve the different and responsible data, use the XML serializer public class Mainactivity the extends activity {list<message> smslist;
@Override protected void OnCreate (Bundle savedinstancestate) {super.oncreate (savedinstancestate);
Setcontentview (R.layout.activity_main);
Virtual 10 Message Smslist = new arraylist<message> (); for (int i = 0; i < i++) {Message SMS = new Message ("Small zhi good" + I, System.currenttimemillis () + "", "138" +
i + I, "1");
Smslist.add (SMS); } public void Click (View v) {//XML file is generated using the XML serializer. The serializer filters out the//1 by filtering out the clutter (the tag attribute in the SMS). Get the Serializer object xmlserializeR xs = Xml.newserializer ();
2. Initialization. Because the XML file is involved, initialization also contains the filename and path file = new file ("Sdcard/sms2.xml");
try {fileoutputstream fos = new FileOutputStream (file);
Enconding: Specifies what encoding is used to generate the XML file Xs.setoutput (FOS, "Utf-8"),//setoutput (OutputStream OS, String encoding), encoding by default U8 3. Start generating XML file//enconding: Specifies the value of the Enconding property in the header node xs.startdocument ("Utf-8", true);//Generation header node (highest row), Startdocument (String Encoding, Boolean Standalone) Xs.starttag (null, "message");//Generate a root node, start tag node for (message sms:smslist)
{Xs.starttag (NULL, "SMS"); Xs.starttag (NULL, "body");//start and end a pair of write. There are also four sub nodes Xs.text (sms.getbody () + "<body>");//This will not be an error.
But the <body> as the content of the Xs.endtag (null, "body");
Xs.starttag (NULL, "date");
Xs.text (Sms.getdate ());
Xs.endtag (NULL, "date");
Xs.starttag (NULL, "type");
Xs.text (Sms.gettype ());
Xs.endtag (NULL, "type");
Xs.starttag (NULL, "address"); Xs.text (sms.geTaddress ());
Xs.endtag (NULL, "address");
Xs.endtag (NULL, "SMS");
} Xs.endtag (NULL, "message");
Tells the serializer that the file was generated xs.enddocument ();
catch (Exception e) {//TODO auto-generated catch block E.printstacktrace (); }
}
}
Finally, remember to add the right:
See this way to solve the problems encountered before, but also a lot of efficiency.
The above is the entire content of this article, I hope to help you learn, but also hope that we support the cloud habitat community.
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