We were stitching the XML file manually in the previous section, but there was a problem with that in the previous section, such as:
Insert the contents of the message sbuffer.append ("<body>"), Sbuffer.append (Sms.getbody () + "</body>"), Sbuffer.append ("</ Body> ");So in this section we use the XML serializer to stitch up the text message content.
The following code is how to stitch a file with an XML serializer:
public class Mainactivity extends Activity {list<message> List; @Override protected void OnCreate (Bundle savedinstancestate) {super.oncreate (savedinstancestate); Setcontentview (R.layout.activity_main); List = new arraylist<message> (); public void Storagemessage (View v) {//get contentresolver contentresolver cr = Getcontentresolver (); Query the system for SMS, only need to query the fields we care about cursor cursor = cr.query (Uri.parse ("Content://sms"), New string[]{"Address", "date", "type", "Body"}, NULL, NULL, NULL); Remove the queried information while (Cursor.movetonext ()) {String address = cursor.getstring (Cursor.getcolumnindex ("Address")); String date = cursor.getstring (Cursor.getcolumnindex ("date")); String type = cursor.getstring (Cursor.getcolumnindex ("type")); String BODY = cursor.getstring (Cursor.getcolumnindex ("body")); Put each text message in the list collection message msg = new Message (address, date, type, body); List.add (msg); }//Take FirstTo the XML serialization object XmlSerializer xs = Xml.newserializer (); File File = new file ("Sdcard/sms2.xml"); try {fileoutputstream fos = new FileOutputStream (file),//utf-8 used to specify what encoding to generate the XML file Xs.setoutput (FOS, "utf-8");// UTF-8 Specifies the value of the Enconding attribute in the header node xs.startdocument ("Utf-8", true); Xs.starttag (NULL, "message"); for (message sms:list) { Xs.starttag (NULL, "SMS"), Xs.starttag (NULL, "address"), Xs.text (Sms.getaddress ()); Xs.endtag (null, "address"); Xs.starttag (NULL, "type"), Xs.text (Sms.gettype ()), Xs.endtag (null, "type"), Xs.starttag (null, "date"), Xs.text ( Sms.getdate ()); Xs.endtag (null, "date"), Xs.starttag (null, "body"), Xs.text (Sms.getbody () + "<body>"); Xs.endtag (NULL, "body"); Xs.endtag (null, "SMS");} Xs.endtag (NULL, "message");//tells the serializer that the file has been generated xs.enddocument ();} catch (Exception e) {//TODO auto-generated catch Blocke.printstacktrace ();} }}
Export to query the backup file information:
You can see that the XML serializer has been automatically processed internally.
Copyright NOTICE: This article for Bo Master original article, without Bo Master permission not reproduced.
Android Storage Learning Save system SMS to SD card (using XML serializer)
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