Mobile Development Code samples

1. Andorid QR code samples
   
2. Blackberry JDE code samples
3. Android streaming mp3 code samples
4. User Agent profile lookup

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The Pirate BAY WAP RSS READER
File - rss.jsp
File - rss_detail.jsp
File - rssutils.tld
File - rssutils.jar

Working Sample

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Microsoft MAPS asp.net c# code example

Click here

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Google Spreadsheet as data source asp.net

using Google.GData.Client;
using Google.GData.Extensions;
using Google.GData.Spreadsheets;
using System.Globalization;

public partial class redeem : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{

}
protected void OnCode_Change(object sender, EventArgs e)
{
string visit = "0";
CultureInfo culture = new CultureInfo("en-US");
if (txtcode.Text.Contains("<")) { lblerror.Text = "Invalid Scan. Please try again"; lblerror.Visible = true; txtcode.Text = ""; } else { SpreadsheetsService service = new SpreadsheetsService("Sample Spreadsheet"); service.setUserCredentials("gmailuserid", "password"); SpreadsheetQuery query = new SpreadsheetQuery(); query.Title = "title of spreadsheet"; SpreadsheetFeed feed = service.Query(query); if (feed.Entries.Count != 1) return; AtomLink link = feed.Entries[0].Links.FindService(GDataSpreadsheetsNameTable.WorksheetRel, null); WorksheetQuery worksheetQuery = new WorksheetQuery(link.HRef.ToString()); worksheetQuery.Title = "Sheet1"; WorksheetFeed worksheetFeed = service.Query(worksheetQuery); if (worksheetFeed.Entries.Count != 1) return; WorksheetEntry worksheet = (WorksheetEntry)worksheetFeed.Entries[0]; AtomLink listFeedLink = worksheet.Links.FindService(GDataSpreadsheetsNameTable.ListRel, null); ListQuery listQuery = new ListQuery(listFeedLink.HRef.ToString()); ListFeed listFeed = service.Query(listQuery); foreach (ListEntry worksheetRow in listFeed.Entries) { string scanData = worksheetRow.Elements[0].Value.ToString(); string[] arSD = new string[100]; char[] splitterFilemSD = { ',' }; arSD = scanData.Split(splitterFilemSD); if (arSD.Length > 0)
{
string codess = arSD[0].ToString();
if (codess == txtcode.Text.ToString())
{
string ddtt = arSD[1].ToString();
string[] arUAm = new string[30];

char[] splitterFilem = { ' ' };
arUAm = ddtt.Split(splitterFilem);

if (arUAm.Length > 0)
{


ddtt = arUAm[1].ToString() + " " + arUAm[0].ToString()+".000";
}



DataAccess.InsertRedeem(txtcode.Text, arSD[2].ToString(), ddtt);
}
}


}
lblerror.Visible = false;

Session["WC"] = txtcode.Text.ToString();
DataTable dtCnt = DataAccess.GetStationCount(txtcode.Text);
if (dtCnt.Rows.Count > 0)
{
visit = dtCnt.Rows.Count.ToString();
}
DataAccess.InsertRedeem(txtcode.Text, "Redemption", DateTime.Now.ToString());
Response.Redirect("passfail.aspx?vs="+visit);
}
}
}

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Google Gadget to send FREE SMS (I built it )

Download here

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WAP Icon Launcher Blackberry Java Code-

launcher.java

import net.rim.device.api.system.ApplicationDescriptor;

import net.rim.device.api.system.ApplicationManager;
import net.rim.device.api.system.ApplicationManagerException;
import net.rim.device.api.system.CodeModuleManager;
import net.rim.device.api.ui.UiApplication;

public class launcher extends UiApplication {
public static void main(String[] args){
launcher instance = new launcher();
instance.enterEventDispatcher();
}

public launcher() {
boolean retval = true;
int handle = CodeModuleManager.getModuleHandle("net_rim_bb_browser_daemon");
if (handle <=0 ){ System.exit(0); }else{ ApplicationDescriptor[] browserDescriptors = CodeModuleManager.getApplicationDescriptors(handle);
if (browserDescriptors == null ){
System.exit(0);
}else{
if ( browserDescriptors.length <=0 ){ System.exit(0); }else{ String[] args = {"url", "http://wap.url.com"};
ApplicationDescriptor descriptor = new
ApplicationDescriptor(browserDescriptors[0],"url invocation",
args,null, -1, null, -1,ApplicationDescriptor.FLAG_SYSTEM);
try{
ApplicationManager.getApplicationManager().runApplication(descriptor);
}catch(ApplicationManagerException e){
System.exit(0);
}
System.exit(0);
}
}
}
}
}

Working Sample

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WAP Support Blackberry Verizon 8830 -

In trouble shooting WAP CSS style sheet not rendering for a Blackberry 8830 world phone 2 conclusions were reached .

1. By default this phone ships with style sheets turned off (you can instruct the user to enable them) .

2. you need to embed the style in the tag ex. NOT TO USE table class="class name here" YOU SHOULD USE table style="style definition here".

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Android QR Code Screen Shots/Code Sample-

Click here

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WURFL Tomcat working

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WAP Definition -

Take for example the mobile device Blackberry 8300 (curve) User Agent of blackberry8300_ver1 . In the UA Profile of the user agent the XHTML level support is xhtml_support_level 3 as you can see below would support a nice looking WAP site.

Capability Name	Type	Description
xhtml_support_level	[-1 |..| 4]	Assuming the device supports some form of XHTML, this capability measures how reliably certain common designer features are supported, according to the following description: - level "-1": no XHTML support of any kind. Possible WML support Nokia 7110, 7210 as well as all UP.Browser 4 and 5 devices. - level "0" : basic XHTML Support. Minimum screen-width: 100 pixel No (or very unreliable) CSS support. Poor table support or none at all. Basic forms: text field, select-option, submit button. May not be able to support input mask on fields. Ex Device: SonyEricsson T610/T616 - level "1" : XHTML with some CSS support. Minimum sceen-width: 120 pixels. Hyperlinks may not be collorable by CSS. Basic table support: 2x2 or more. Colspan and rowspan may not be supported. "width" expressed as percentage may be unreliable. Ex Device: Sharp GX 10, Nokia 3650 - level "2" : Assume same capabilities as level "1", but may vary in the future. Ex Device: Nokia6600,Nokia5300 - level "3" : Excellent CSS support. Padding, border and margin are correctly applied. Can reliable apply colors to links, text and background. CSS graphic effects are pixel perfect Minimum sceen-width: 164 pixels. Can support complex tables (but not necessarily nested tables) up to 4 cells in a row. Not setting "font-size" produces a readable font. Supports background images also when applied through CSS. Generally running on 3G devices. Ex: Nokia Series 60 DP 3, Browsers: Openwave Mobile Browser 7, MS Mobile Explorer, recent BlackBerrys. Netfront 3.2, Safari (including iPhone), Sony PSP... (assuming high-bandwidth, Edge/UMTS/...) - level "4" : Level 3 + Ajax support. Toggle display property. XMLHTTPRequest(). InnerHTML()