blackberry

Blackberry RRT signing problem!

Gurus, I got the keys from RIM to sign my application, however, the signing tool won't sign the RRT, I'm succesfully signing the RCR but not the RRT so the application won't run on a device, I'm getting this error that speaks for it's self: I'm using Eclipse with the plugin 1.1. JRE 5.0.0. Any help would be appreciated, if you need mo...

Display countdown timer on simulator for a quiz type application.

Hi fellow developers! I am new to blackberry. I want to develop a countdown timer for a quiz type application that displays throughout the application on simulator. I am using storm version.' how to implement it? if anybody answers i will be very thankful to them.. ...

Java socket not throwing exceptions on a dead socket??

We have a simple client server architecture between our mobile device and our server both written in Java. An extremely simple ServerSocket and Socket implementation. However one problem is that when the client terminates abruptly (without closing the socket properly) the server does not know that it is disconnected. Furthermore, the ser...

Json data into Blackberry Listfields

Hi, I want to know how to populate a list field with the data that is retrieved from Json url. I have Json data in the url like so... [{"CategoryID":13,"CategoryName":"Desktops"},{"CategoryID":14,"CategoryName":"PC"},{"CategoryID":15,"CategoryName":"Mac"}] I want to display category names into a listfield. Plzzzz help me.It will be v...

Ui Applicatiopn class use in other class

(public class GPSDemo extends UiApplication) its a class name i want to use this class in this code. i am make a object of this class but throw the exception here is the place where we use it popRunnable = new Runnable() { public void run() { ...

Add A ticker to Blackberry Display

im new to blackberry,So Please give a blackberry code for adding ticker to blackberry display bottom part of the disply ?? Need Only for how to Create a Ticker.?? Thank you ...

Mobile device testing for BlackBerry smart phones - acquiring test phones

Hello, I have been developing a BlackBerry application for about 7 months, and I have started to do a lot of testing. Does anyone have any advice on the best way to test my application on different BlackBerry devices (without having to purchase them)? I have the BlackBerry Tour and the BlackBerry Storm, but I can only have my Verizon n...

why is my blackberry java plugin and blackberry jde gets corrupted after installation?

why is my blackberry java plugin and blackberry jde gets corrupted after installation? ...

How to unzip files in blackberry

Hi everyone. I'm developing an app that manages a file zip with directories and files. I must know how to unzip these files in order to create in local the same structure as in the zip file. Thanks in advance :) Sergio ...

RenderingS​ession returns null while useing browserfield.

i want to develope appli which has browserfield to browse any url. i m using bowserfield class method from in built JDE example. in this method i m using _renderingSession = RenderingSession.getNewInstance(); but this line returns null while using on real device (curve 8520). but it is working fine on simulator. can anyone help me ...

contact list taking time to open?

hi i am working on a blackberry application. its related to sending SMS. when ever i open the contact list in application its Delay for 6-7 sec. its a drawback in my app. pls suggest me... ...

Blackberry thread hanging on SQLite statement prepare

Hi Gurus. I'm developing an application that implements an EditField in which you can type a word and while typing the application will filter the contents that are being shown on screen. For this, I'm starting a new thread when the user types. This thread extracts the information from a SQLite table and then shows it on the UI. I use...

Save data into blackberry memory

i hav a app,which displays a test screen when we clk start,nw i hav added resume test button,& want to display the question frm where it exited.For dis i want to save the question into memory so that i can fetch frm there & display it.i m writing the code,plz help package com.firstBooks.series.ui.screens; import net.rim.device.api.ui.F...

Need to some help for Consuimg web services in Blackberry application

I am currently working on a Blackberry application. The application largely interacts with web services. At present we are using The JSR 172 stubs to interact with web service and facing some issues especially for the array type parameters. 1.JAXP subset: This is used for XML parsing 2.JAX-RPC Subset: This is used to consume web service...

background image on button

i am use a start button. we require a paste image on button not a text on button. ...

Http Post using stubs in mobile application

Hi, I'm working on a mobile application for Blackberry where i need to access web services. I'm using stubs ie JSR 172 to access the web services. Now i'm facing an issue, how do i make a post request using stubs. I have a string value which i need to pass in HTTP body. How do i do this using the stubs. ...

Doubts Over Streaming Application

Hi ,i want to develop the Radio application streams our favorite RADIO stations directly to your device.What type of streaming would be quite useful.I already tried using streaming concepts.When the file size exceeds more than 10 MB or so,i face some problems in RTSP. I dont have any idea of what sort of streaming is required for any r...

How can effectively use dynamic CSS in a mobile browser?

I am trying to develop a mobile version of my web application and I am having trouble getting it to look good on multiple browsers. I figure if I use some device capability detection I can dynamically generate widths and font-sizes based on a particular devices screen size. The problem is that it seems like a mobile browser doesn't tre...

Blackberry Plugin in Eclipse - blackberry menu item not showing up

I followed Installation video tutorial and installed "BlackBerry JDE Plug-in for Eclipse 1.1 " However, due to some reason, Blackberry menu is not showing up in the Eclipse. OS is Windows 7 and Eclipse 3.5. Any hint will be appreciated. ...

Good Resources for difference between different mobile widget platforms?

There are a couple of good open source apps for WebOS that I would like to try porting to blackberry using the widget SDK. Has anyone else attempted this? Has anyone found a side-by-side comparison of the differences in what it takes to make an application using these two methods? ...