First you need the HTML file you want to display and you have to put it in the res/raw directory of your project. We'll access to this directory with the getResources().openRawResource(int id) method.

Now we need a widget that is able to display an HTML string like the android.webkit.WebView and a layout with this widget inside that will be used by our Activity:

Finally, we can implement an Activity that loads our HTML file from resources when it starts putting in the onCreate method something like the following:

To be more general I implemented this Activity to accept two parameters:
* a title to put as Activity title;
* a resId that identify the specific HTML resource to load.
You can find the complete source of this Activity here: HtmlViewer.java

Now that our work is finished, assuming that the HTML file that we want to display is res/raw/quickref.html, we can invoke our HTML Viewer via Intent with somthing like this:

I recently noticed that, sometimes and more often when I use it on 3G Internet connections, the port knocking authentication fails because (I suppose) the connects tried are too fast and arrive at server in the wrong order. So I thought that inserting a delay between connections could help and, based on my experience, it works great!

So I patched the 0.5 version of Judd's code to add a new parameter (-d) to specify a delay in millis between connections.

Download binaries:

• MacOSX (x86) patched Client
• Linux 64bit (x86) patched Client

And this is the patch to apply to the original code:

*** knock-0.5/src/knock.c 2005-06-27 07:11:34.000000000 +0200
--- knock-0.5.1/src/knock.c 2011-01-19 22:07:30.000000000 +0100
***************
*** 32,38 ****
#include
#include

return(0);
***************
*** 148,153 ****
--- 153,159 ----
printf("usage: knock [options] [port[:proto]] ...\n");
printf("options:\n");
printf(" -u, --udp make all ports hits use UDP (default is TCP)\n");
+ printf(" -d, --delay add a delay of the specified milliseconds between syns\n");
printf(" -v, --verbose be verbose\n");
printf(" -V, --version display version\n");
printf(" -h, --help this help\n");


mv $PROJECTPATH/src/it/casarini/oldpackage $PROJECT/src/it/casarini/newpackage
export MYLIST=`find $PROJECTPATH/src -type f -name *.java`
for a in $MYLIST; do
    echo $a
    mv $a $a.orig
    sed s/it.casarini.oldpackage/it.casarini.newpackage/g $a.orig > $a
    rm $a.orig
done;


AiC Mobile è disponibile da agosto sul Market Google e viene costantemente migliorata e aggiornata. Per vedere AiC Mobile per Android sul Market o per scaricarla sul proprio telefonino è possibile usufruire del servizio AppBrain qui sotto evidenziato:

Come ogni prodotto del volontariato, anche AiC mobile per Android, è il risultato della collaborazione di più persone che ringrazio per il loro aiuto e l'incoraggiamento che mi hanno donato: Luca Agostini, Alberto Carlana, Antonio D'Errico, Anna Ferrandino, Davide Fiorello, Mario Mestice, Antonio Pascuccio, Lorenzo Pino.

Per continuare:

• Presentazione del programma, delle sue caratteristiche principali, screenshots, video dimostrativo e link per il download.
• Gruppo per avere supporto tecnico nell'utilizzo dell'applicazione e per segnalare eventuali problemi;
• Sito di sviluppo collaborativo dove è possibile accedere ai sorgenti e contribuire alle idee di sviluppo e alla stesura del codice.
• Per installare l'applicazione:
  

GlutenBuster è sviluppato come software libero (Free Software) ed è distribuito gratuitamente da sito di sviluppo collaborativo.

Sono alla ricerca di persone interessate a partecipare alla fase di test prima della pubblicazione nel Google Market. Se qualcuno fosse interassato può scrivere a glutenbuster@casarini.org.

Per continuare:

• www.casarini.org/blog/glutenbuster - Presentazione del programma, delle sue caratteristiche principali e accesso all'ultima versione disponibile pronta per essere installata sul proprio cellulare;
• www.casarini.org/blog/glutenbuster/glutenbuster-screenshots/ - Screenshots che mostrano alcune schermate catturate durante l'ultizzo delle principali funzionalità;
• www.casarini.org/trac/glutenbuster - Sito di sviluppo collaborativo dove è possibile accedere ai sorgenti e contribuire alle idee di sviluppo e alla stesura del codice.

Before starting to write some code it may be useful to remember to declare in the AndroidManifest.xml the request for the permission to make connections over the Internet and, if we want to save the file on the sd card, the permission to write to the external storage:

The class I wrote is called DownloadThread, extends th java.lang.Thread and a constructor with four parameters:

• the url of the file to download;
• the path where the downloaded file has to be written;
• the instance of the ProgressDialog to update;
• the handler that will receove the messages to update the UI.

The download process has to be in a separate thread and it has to be started soon after the dialog is displayed. The core of this class is its run method where we first make the connection to the specified url and build the input/output streams to realize the communicaton channel and then we read from the network the file content.

If we delete lines 9 and 28-32 the code could run in any Java standard environment, the highlighted lines have the resposibility to communicate with the UI and to update it. In particular line 9 sets the upper boung of the progress bar in the ProgressDialog and lines 28-32 update throught the Handler instance the current value of the progress bar.

What we need now is the code of build the ProgressDialog in our Activity e and the related Handler that manage messages from the Thread we have just written.

It's all, folks! If you want to see this class in action you can see it in a small free software project called GlutenBuster.