Automatic update of Android software (Network XML parsing and local xml Software Version)

Put XML into the network space --- version. xml. url address should be normal ***/***. apk
<Update>
<Version> 5 </version>
<Name> yuanbao </name>
 

<Url> http://cdn.market.hiapk.com/data/upload//2012/06_27/13/yuanbao.co.

Cc_13.02.apk
</Url>
</Update>
---------------- Main
Package gognzibai. co. cc;

Import android. app. Activity;
Import android. OS. Bundle;
Import android. view. View;
Import android. view. View. OnClickListener;
Import android. widget. Button;

Public class MainActivity extends Activity
{
@ Override
Public void onCreate (Bundle savedInstanceState)
{
Super. onCreate (savedInstanceState );
SetContentView (R. layout. main );
// Button update
Button updateBtn = (Button) findViewById

(R. id. btnUpdate );
UpdateBtn. setOnClickListener (new OnClickListener ()
{
@ Override
Public void onClick (View v)
{
UpdateManager manager = new

UpdateManager (MainActivity. this );

Manager. checkUpdate ();
}
});
 
}
}

----------------- ParseXmlService. java
Package gongzibai. co. cc;

Import java. io. InputStream;
Import java. util. HashMap;

Import javax. xml. parsers. DocumentBuilder;
Import javax. xml. parsers. DocumentBuilderFactory;

Import org. w3c. dom. Document;
Import org. w3c. dom. Element;
Import org. w3c. dom. Node;
Import org. w3c. dom. NodeList;

// Parse xml
Public class ParseXmlService {
Public HashMap <String, String> parseXml (
InputStream inStream)
Throws Exception {
HashMap <String, String> hashMap = new HashMap <String,

String> ();

 
DocumentBuilderFactory factory = DocumentBuilderFactory
. NewInstance ();
 
DocumentBuilder builder = factory
. NewDocumentBuilder ();
 
Document document = builder
. Parse (inStream );
 
Element root = document
. GetDocumentElement ();
 
NodeList childNodes = root
. GetChildNodes ();
For (int j = 0; j <childNodes
. GetLength (); j ++ ){

Node childNode = (Node) childNodes
. Item (j );
If (childNode. getNodeType () =

Node. ELEMENT_NODE ){
Element childElement = (Element)

ChildNode;

If ("version"
. Equals (childElement

. GetNodeName ())){
HashMap. put (
"Version ",
ChildElement

. GetFirstChild ()

. GetNodeValue ());
}

Else if ("name"
. Equals (childElement

. GetNodeName ()))){
HashMap. put (
"Name ",
ChildElement

. GetFirstChild ()

. GetNodeValue ());
}

Else if ("url"
. Equals (childElement

. GetNodeName ()))){
HashMap. put (
"Url ",
ChildElement

. GetFirstChild ()

. GetNodeValue ());
}
}
}
Return hashMap;
}
}

------------- Update management. UpdateManager. java

Package gongzibai. co. cc;

Import java. io. File;
Import java. io. FileOutputStream;
Import java. io. IOException;
Import java. io. InputStream;
Import java.net. HttpURLConnection;
Import java.net. MalformedURLException;
Import java.net. URL;
Import java. util. HashMap;

Import android. app. AlertDialog;
Import android. app. Dialog;
Import android. app. AlertDialog. Builder;
Import android. content. Context;
Import android. content. DialogInterface;
Import android. content. Intent;
Import android. content. DialogInterface. OnClickListener;
Import android. content. pm. PackageManager. NameNotFoundException;
Import android.net. Uri;
Import android. OS. Environment;
Import android. OS. Handler;
Import android. OS. Message;
Import android. view. LayoutInflater;
Import android. view. View;
Import android. widget. ProgressBar;
Import android. widget. Toast;

 

Public class UpdateManager {
 
Private static final int DOWNLOAD = 1;
 
Private static final int DOWNLOAD_FINISH = 2;
 
HashMap <String, String> mHashMap;
 
Private String mSavePath;
 
Private int progress;
 
Private boolean cancelUpdate = false;

Private Context mContext;
 
Private ProgressBar mProgress;
Private Dialog mDownloadDialog;

Private Handler mHandler = new Handler (){
Public void handleMessage (
Message msg ){
Switch (msg. what ){

Case DOWNLOAD:

MProgress
. SetProgress (progress );
Break;
Case DOWNLOAD_FINISH:
// Install APK
InstallApk ();
Break;
Default:
Break;
}
};
};

Public UpdateManager (Context context ){
This. mContext = context;
}

// Check for updates
Public void checkUpdate (){
If (isUpdate ()){

ShowNoticeDialog ();
} Else {
Toast. makeText (
MContext,
R. string. soft_update_no,
Toast. LENGTH_LONG)
. Show ();
}
}

 
Private boolean isUpdate (){
 
Int versionCode = getVersionCode (mContext );
 
// Update the local XML
// InputStream inStream = ParseXmlService. class
//
//. GetResourceAsStream ("version. xml ");
// InputStream inStream = ParseXmlService. class
//. GetClassLoader ()
//. GetResourceAsStream (
// "Version1.xml ");
 
// Update the software by parsing the network xml
URL url = null;
Try {
Url = new URL (

Http://gongzibai.h001.sjsdidc.cn/version.xml ");
} Catch (MalformedURLException e1 ){
// TODO Auto-generated catch block
E1.printStackTrace ();
}
HttpURLConnection conn = null;
Try {
Conn = (HttpURLConnection) url
. OpenConnection ();
} Catch (IOException e1 ){
// TODO Auto-generated catch block
E1.printStackTrace ();
}
Conn. setConnectTimeout (5000 );
InputStream is = null;
Try {
Is = conn. getInputStream ();
} Catch (IOException e1 ){
// TODO Auto-generated catch block
E1.printStackTrace ();
}

 
ParseXmlService service = new ParseXmlService ();
Try {
MHashMap = service
. ParseXml (is );
} Catch (Exception e ){
E. printStackTrace ();
}
If (null! = MHashMap ){
Int serviceCode = Integer
. ValueOf (mHashMap
. Get

("Version "));

If (serviceCode> versionCode ){
Return true;
}
}
Return false;
}

 
Private int getVersionCode (
Context context ){
Int versionCode = 0;
Try {

VersionCode = context
. GetPackageManager ()
. GetPackageInfo (

"Gongzibai. co. cc ",
0). versionCode;
} Catch (NameNotFoundException e ){
E. printStackTrace ();
}
Return versionCode;
}

 
Private void showNoticeDialog (){
 
AlertDialog. Builder builder = new Builder (
MContext );
Builder. setTitle (R. string. soft_update_title );
Builder. setMessage (R. string. soft_update_info );
 
Builder. setPositiveButton (
R. string. soft_update_updatebtn,
New OnClickListener (){
@ Override
Public void onClick (
DialogInterface

Dialog,
Int which ){
Dialog. dismiss ();

ShowDownloadDialog ();
}
});
 
Builder. setNegativeButton (
R. string. soft_update_later,
New OnClickListener (){
@ Override
Public void onClick (
DialogInterface

Dialog,
Int which ){
Dialog. dismiss ();
}
});
Dialog noticeDialog = builder
. Create ();
NoticeDialog. show ();
}

 
Private void showDownloadDialog (){
 
AlertDialog. Builder builder = new Builder (
MContext );
Builder. setTitle (R. string. soft_updating );
 
Final LayoutInflater inflater = LayoutInflater
. From (mContext );
View v = inflater
. Inflate (

R. layout. softupdate_progress,
Null );
MProgress = (ProgressBar) v
. FindViewById (R. id. update_progress );
Builder. setView (v );
 
Builder. setNegativeButton (
R. string. soft_update_cancel,
New OnClickListener (){
@ Override
Public void onClick (
DialogInterface

Dialog,
Int which ){
Dialog. dismiss ();

CancelUpdate = true;
}
});
MDownloadDialog = builder
. Create ();
MDownloadDialog. show ();
 
DownloadApk ();
}

Private void downloadApk (){
 
New downloadApkThread (). start ();
}

Private class downloadApkThread
Extends Thread {
@ Override
Public void run (){
Try {

If (Environment

. GetExternalStorageState ()
. Equals

(Environment. MEDIA_MOUNTED )){

String sdpath = Environment

. GetExternalStorageDirectory ()
+ "/";
MSavePath = sdpath
+ "Download ";
URL url = new URL (
MHashMap. get

("Url "));

HttpURLConnection conn =

(HttpURLConnection) url

. OpenConnection ();
Conn. connect ();

Int length = conn

. GetContentLength ();

InputStream is = conn

. GetInputStream ();

File file = new File (
MSavePath );

If (! File. exists ()){
File. mkdir ();
}
File apkFile = new File (
MSavePath,
MHashMap. get

("Name "));
FileOutputStream fos = new

FileOutputStream (
ApkFile );
Int count = 0;

Byte buf [] = new byte [1024];

Do {
Int numread = is
. Read

(Buf );
Count + = numread;

SS = (int)

(Float) count/length) * 100 );

MHandler. sendEmptyMessage (DOWNLOAD );
If (numread <= 0 ){

MHandler. sendEmptyMessage (DOWNLOAD_FINISH );
Break;
}

Fos. write (buf,
0,

Numread );
} While (! CancelUpdate );
Fos. close ();
Is. close ();
}
} Catch (MalformedURLException e ){
E. printStackTrace ();
} Catch (IOException e ){
E. printStackTrace ();
}

MDownloadDialog. dismiss ();
}
};

 
Private void installApk (){
File apkfile = new File (
MSavePath,
MHashMap. get ("name "));
If (! Apkfile. exists ()){
Return;
}
 
Intent I = new Intent (
Intent. ACTION_VIEW );
I. setDataAndType (
Uri. parse ("file ://"
+ Apkfile

. ToString ()),
"Application/vnd. android. package-

Archive ");
MContext. startActivity (I );
}
}

By gongzibai