mobile

Developing a mobile version of a site

I'm working on a large website project that makes heavy use of in-page graphing of data. To make the graphs interactive (the old paradigm was to post data to the server, have the server render the graph as a jpg, then send it back to the browser) we've started building the graphs in Java. It's a smooth system, but the website is still ve...

Custom USB protocols for mobile frameworks

We've developed a small embedded device that currently connects over USB to a Symbian phone (S60 framework). Development was... difficult since it was hard to find information on what we needed. Specifically, we developed a simple custom protocol on top of the USB layer to exchange arbitrary data. We're now looking at new mobile framewo...

mobile application features

Suppose one wants to port a desktop app to a smartphone (which can mean write from scratch). How in your opinion should a mobile version relate to to the desktop one? In other words, what are the common features of mobile apps? I can say: short user interface (not time consuming) dense content, filtered in comparison with the desktop...

Is it possible to make a cross-domain AJAX call on Mobile Browsers?

I have a site which makes SOAP requests to a separate domain using YUI's cross-domain AJAX transport. This is working wonderfully on my site, but unfortunately since mobile browsers don't support flash, I can't get it to work. Does anyone know of a way to make cross-domain AJAX posts on mobile browsers? Thanks! ...

is python the preferred language for mobile applications?

a lot of my friends are using Python to build their mobile applications and games. is python the preferred language for mobile applications for developers? if so, why? ...

what input field type forces the number pad mobile keyboard to come up when focused?

I tried the <input type="number" /> but on opera that outputs a strage input box coupled with a "up and down" handler, what i expected was a regular text field that once you focus on it prompts the number keyboard instead of the alphabets, is that even possible? PS im not trying to validate, it would be a nice user experience thats all ...

what is the Operating System found in non-branded china phones ??

Hi everyone, I'm a budding developer. I am trying to modify the OS of typical china mobiles (http://www.chinavasion.com/product_info.php/pName/direktor-wifi-dual-sim-quadband-worldphone/) and make it as good as a nokia OS. Even many popular companies like Fly, Lava, Micromax and many others are also using the more or less similar OS. Bu...

How to develop an own browser for Android? How to parse HTML, JS & Co.?

Like the title says, I am thinking about developing my own browser for Android devices. My first thought is to know what kind of possibilities I have, before I begin creating my software architecture. Are there any (open?) Browser Engines you could include into your library and reuse them? (There are some unknown browsers in the Android...

What is active GPS effect on mobile devices battery life?

How much does active GPS drain the battery? Without the overhead of the gps navigator software. s ay I want to sample the gps every 2 minutes and save it to a file. how much battery power will that cost me? Will I get 10% shorter life? 20%? ..? ...

Debugging an Android app in Eclipse using the handset

I am just starting to learn Android development using the Android SDK and Eclipse. I can get my HelloWorld starting app to run in the device emulator, but not on my Verizon Droid handset. I have downloaded the drivers for Windows 7 and I can see the files on the handset in Windows Explorer, so I'm assuming I have the drivers working. I h...

Website to be accessed only by micro browser - on mobile phones only

I have a website running here temporarily. Now it is accessible by both PC and mobile. How do I restrict it to only mobile. If accessed on PC it should not show anything. But if using a mobile, it should allow. Thanks in advance! ...

Training Courses for Mobile Web Site Development

Has anybody taken a training course for mobile web site development that they would like to recommend? The course can be on-site or online. The course should cover XHTML MP development, I would think. ...

Server architecture for a geosocial app?

I'm interested in getting some ideas and suggestions for a server architecture for a real time geosocial app. One that tracks at the very least user locations live. Are there any stacks that favour this kind of information? Java Servlets? Darkstar/RedDwarf? Others that I'm maybe not aware of? Live connections to clients and the abi...

Mobile Development Tools

I'm researching various tools available for developing and deploying an app to mobile devices. The existing app is available in two versions: as a traditional desktop application and as a browser-based "Lite" version. We're building out the features of the "Lite" version to make it a full implementation of the flagship software, but th...

Retaining the Sqlite Data across versions

Hi Friends, Lets say , I have an Mobile App (iPhone or Android). When I upgrade the App to its version, does the Sqlite data that my earlier version had would be wiped out or not? ...

How to test a site for low bandwidth?

Hello, I'm developing a web application for mobile browsers. Right now most of development is done on local machines (with local apache) and I'd like to test how it behaves in low bandwidth and even high latency environments. I don't need to use apache as there is little server side things for the moment. Do you know any good tool? ...

Mobile Phone Browse Escape Ampersand (&) for URL Developed in ASP.NET MVC?

This is a strange one that I cannot see to figure out. I have a basic mobile site that is coded in ASP.NET MVC (really shouldn't matter in this case but just to put it out there) When I browse to the specific page, I receive the following error. This page contains the following errors: error on line 56 at column 43: EntityRef: expect...

how to create layered map in mobile appliaction

Hi all, i have seen mobile application named locago on getjar.com , it has map with many layers i.e. layer for wikipedia . I'd like to know further about how to create map with layers in j2me mobile application ...

how to draw complex shapes on the html canvas tag with the best performance?

I am using the HTML canvas tag to draw around 3000, vector lines on a small area (900x500) the target platform is mobile which has inherently lower spec'd hardware. On my desktop I can make the 3000 vector lines render, using moveto and lineto in about 25ms. However on the mobile device it's more like 700ms which is significantly slower....

BlackBerry J2ME vs HTML Javascript framework like PhoneGap

A client wants a blackberry application for listening live radio for his radio station. We focused on iPhone development. I know Java language have done several projects. However haven't tried yet J2ME. Which do you recommend J2ME or HTML Javascript framework like PhoneGap or any other cross platform framework? What are the advantages a...