Cross Platform Software Development using QtMilot Shala

Software Engineer

Qt is (c) 2009 Nokia Corporation and/or its subsidiaries

Qt, Qt Development Frameworks and their respective logos are trademarks of Nokia Corporation in Finland and/or other countries worldwide

Who am I and why I'm talking about this topic?

Software Engineer at Alfracom Co-Founder & Software Engineer at

Spartans<T> Providing software solutions for mobile,

desktop and anything in between.

Milot Shala, 2009

Overview

What's Qt? The problem Solution to our current problem The road to a perfect software solution Solution to our future problem (which we

don't know it yet) Demos Who uses Qt by the way?

Milot Shala, 2009

What is Qt?

Qt is a cross platform application framework. It includes:

Intuitive C++ class library Integrated development tools Support for desktop and embedded

development Company that founded Qt formerly known as

Trolltech In 2008 acquired by Nokia. Changed its name to Qt Software later to Qt

Development Frameworks 2009/2010 focused on mobile platforms

(symbian and maemo)Milot Shala, 2009

The Problem

Writing a simple and yet cool weather application for my region and have it localized in my mother tongue

Milot Shala, 2009

Weather Applications

Cool weather application. Something like...

AND

Milot Shala, 2009

The Problem

Writing a simple and yet cool weather application for my region and have it localized in my mother tongue

Using Google Weather API services

Milot Shala, 2009

Google Weather API

Milot Shala, 2009

The Problem

Writing a simple and yet cool weather application for my region and have it localized in my mother tongue

Using Google Weather API services Make it work almost everywhere

Milot Shala, 2009

The Problem

But my target device is...

© All rights reserved kiroshafeek - http://www.flickr.com/photos/nseriesblog/Milot Shala, 2009

Solution

Development started under Linux

Results after two days of work (Saturday and Sunday)

Using QtCreator that is the same on all platforms

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Solution

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Solution

Work continued in Monday at my office

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Solution

Porting within Windows ecosystem is easy

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The Problem

Still my target device is Nokia Express Music 5800

© All rights reserved kiroshafeek - http://www.flickr.com/photos/nseriesblog/

Development started under Linux

Porting to Windows was a matter of recompilation

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Solution

Meet PRWeather

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Results after cross-compilation for S60

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Results after cross-compilation for S60 (2)

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The road to perfect software solution

What we did? Combined web technologies with

desktop technologies Combined web technologies with mobile

technologies Can combine mobile and desktop

technologies using web technologies

Milot Shala, 2009

But what about the future problems?

Solution to our future problem

One day my boss came from Paris with this device

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Solution to our future problem (2)

My duties were: To test the device Read the device API Write a cool application for it Do it ASAP!

I fulfilled my duties by: Continuing writing my applications using Qt I cross-compiled PRWeather for this device,

because it is cool Results?

Milot Shala, 2009

Solution to our future problem

Results are as expected

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Solution to our future problem (2)

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More screenshots

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Live Demo

PRWeather running on Kubuntu

Pre-recorded Nokia 5800 Video

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Qt during this presentation

The desktop environment that I am using is written in Qt

Video player you have watched the video demo is written using Qt...

And I wrote it.

Milot Shala, 2009

Who uses Qt by the way?

All logos are trademarks of their respective owners.The logos are included on this page for academic use only.Milot Shala, 2009

Questions?

Milot Shala, 2009