Android Automatic Update software version

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 Android.app.AlertDialog;

Import Android.app.AlertDialog.Builder;

Import Android.app.Dialog;

Import Android.content.Context;

Import Android.content.DialogInterface;

Import Android.content.DialogInterface.OnClickListener;

Import android.content.Intent;

Import Android.net.Uri;

Import Android.os.Handler;

Import Android.os.Message;

Import Android.util.Log;

Import Android.view.LayoutInflater;

Import Android.view.View;

Import Android.widget.ProgressBar;

public class Updatemanager {

Private context Mcontext;

Private final String updatemsg = "Pro, there is a new version, to update it!"; Download Message hints

Private Dialog Noticedialog; Download prompt dialog box

Private Dialog Downloaddialog; Download Progress dialog box

Private ProgressBar Mprogressbar; Progress bar

Private Boolean Interceptflag = false; Mark whether the user cancelled the download during the download

Private Thread downloadapkthread = null; Download thread

Private final String Apkurl = "http://www.xxx/xxx.apk"; URL address for apk

Private final String Savepath = "/sdcard/updatedemo/"; Download the apk stored path

Private final String Savefilename = Savepath + "xxx.apk"; Download the apk file

private int progress = 0; Download progress

Private final int download_ing = 1; Tag is downloading

Private final int download_over = 2; Tag Download complete

Private final String tag= "version update";

Log Print Label

Private Handler Mhandler = new Handler () {//Update UI Handler

@Override

public void Handlemessage (msg) {

Super.handlemessage (msg);

Switch (msg.what) {

Case download_ing:

Update progress bar

Mprogressbar.setprogress (progress);

Break

Case Download_over:

Downloaddialog.dismiss ();

INSTALLAPK ();

Installation

Break

Default

Break

}

}

};

/*

* Construction Method

*/

Public Updatemanager {

This.mcontext = context;

}

/*

* Check if there is a need to update, compare version xml

*/

public void Checkupdate () {

Check to the server to see if the software has a new version

If there is

Shownoticedialog ();

}

/*

* Show version Update dialog box

*/

private void Shownoticedialog () {

Alertdialog.builder Builder = new Builder (mcontext);

Builder.settitle ("version update");

Builder.setmessage (UPDATEMSG);

Builder.setpositivebutton ("Update", new Onclicklistener () {

public void OnClick (Dialoginterface dialog, int which) {

Noticedialog.dismiss ();

Showdownloaddialog ();

}

});

Builder.setnegativebutton ("later"), new Onclicklistener () {

public void OnClick (Dialoginterface dialog, int which) {

Noticedialog.dismiss ();

}

});

Noticedialog = Builder.create ();

Noticedialog.show ();

}

/*

* Pop-up Download progress dialog box

*/

private void Showdownloaddialog () {

Alertdialog.builder Builder = new Builder (mcontext);

Builder.settitle ("Software Update");

Final Layoutinflater inflater = Layoutinflater.from (Mcontext);

View v = inflater.inflate (r.layout.progress, NULL);

Mprogressbar = (ProgressBar) V.findviewbyid (r.id.updateprogress);

Builder.setview (v);

Builder.setnegativebutton ("Cancel", new Onclicklistener () {

public void OnClick (Dialoginterface dialog, int which) {

Downloaddialog.dismiss ();

Interceptflag = true;

}

});

Downloaddialog = Builder.create ();

Downloaddialog.show ();

DOWNLOADLATESTVERSIONAPK ();

}

/*

* Download the latest APK files

*/

private void downloadlatestversionapk () {

Downloadapkthread = new Thread (downloadapkrunnable);

Downloadapkthread.start ();

}

Anonymous inner class, apk file download thread

Private Runnable downloadapkrunnable = new Runnable () {

public void Run () {

try {

URL url = new URL (apkurl);

HttpURLConnection conn = (httpurlconnection) URL

. OpenConnection ();

Conn.setconnecttimeout (5*1000);

Conn.connect ();

int length = Conn.getcontentlength ();

LOG.E (TAG, "total number of bytes:" +length);

InputStream is = Conn.getinputstream ();

File File = new file (Savepath);

if (!file.exists ()) {

File.mkdir ();

}

File Apkfile = new file (savefilename);

FileOutputStream out = new FileOutputStream (apkfile);

int count = 0;

int readnum = 0;

byte[] buffer = new byte[1024];

do {

Readnum = is.read (buffer);

Count + = Readnum;

progress = (int) (((float) count/length) * 100);

LOG.E (TAG, "download Progress" +progress);

Mhandler.sendemptymessage (download_ing);

if (readnum <= 0) {

Download end

Mhandler.sendemptymessage (Download_over);

Break

}

Out.write (Buffer,0,readnum);

while (!interceptflag);

Is.close ();

Out.close ();

catch (Malformedurlexception e) {

E.printstacktrace ();

catch (IOException e) {

E.printstacktrace ();

}

}

};

/*

* Installation of downloaded APK files

*/

private void installapk () {

File file= new file (Savefilename);

if (!file.exists ()) {

Return

}

Intent intent= New Intent (Intent.action_view);

Intent.setdataandtype (Uri.parse ("file://" +file.tostring ()), "application/vnd.android.package-archive");

Mcontext.startactivity (Intent);

}

}