Ubuntu App Developer Week – Day 4 Summary

Last day of UADW! While we’re watching the final sessions, here’s what happened yesterday:

Creating an App Developer Website: developer.ubuntu.com

By John Oxton and David Planella

Creating the concept and implementing a site for app developers is no easy task. The Ubuntu App Developer site is meant to be a place for app authors to get started with development, to find the information they need and to be able to publish their apps in the Software Centre. John explained all the research and user testing that happened behind the scenes, highlighting the key findings, while David focused on the purpose of the site, where it fits in the overall developer strategy for Ubuntu and the plans for the future.

Check out the session log here.

Rapid App Development with Quickly

By Michael Terry

Fitting nicely topicwise with the questions about the default choice of tools for Ubuntu development on the previous session, Michael gave an overview of what Quickly is and how to use it. Going through the workflow of creating your first app with Quickly, he demonstrated all the key commands and explained in detail all the bits in between.

Check out the session log here.

Developing with Freeform Design Surfaces: GooCanvas and PyGame

By Rick Spencer

Rick started off the session explaining what GooCanvas and PyGame were good for: providing a 2D surface on which to construct interactive GUIs for users. Beginning with GooCanvas, he showed with a very simple example how to get started playing with 2D composing surfaces, adding images, text and doing other operations such as resizing and calculating coordinates to determine clicks. Next up was PyGame, for the same purpose, but better suited for apps with lots of animation updates without user input. He then wrapped up with three samples of simple games to study.

Check out the session log here.

Making your app appear in the Indicators

By Ted Gould

Ted Gould, the man who controls the upper right corner of our screen, talked all about indicators. The idea was to illustrate how to get the information that comes from applications and handle it to the indicators. First up was the messaging menu, a menu to handle human-to-human communication, next the application indicators, which alllow long-running apps to put statuses on the panel consistently, and finally the sound indicator, taking care of all related to sound. Each one of them explained with code examples. Nice!

Check out the session log here.

Will it Blend? Python Libraries for Desktop Integration

By Marcelo Hashimoto

Marcelo shared his experience acquired with Polly, a Twitter client he developed, on using Python and libraries to let apps provide better integration to the desktop. First explaining the concept of desktop integration, stressing the fact that it’s not only about visuals. The rest of the session was structured around 3 main areas: how to send notifications to the user, where to place files read or written by an app and what to use to store sensitive information. A very clear and solid session, also with example code for easy learning.

Check out the session log here.

The Day Ahead: Upcoming Sessions for Day 4

Check out the first-class lineup for the last day of UADW:

16.00 UTCGetting A Grip on Your Apps: Multitouch on GTK apps using Libgrip

Multitouch is everywhere these days, and now on your desktop as well -brought to you by developers such as Jussi Pakkanen, who’ll guide through using libgrip to add  touch support to your GTK+ apps. Learn how to use this cool new library in your own software!

17:00 UTCCreating a Google Docs Lens

Lenses are ways of presenting data coming from different sources in Unity. Neil Patel knows Lenses inside out and will present a practical example of how to create a Google Docs one. Don’t miss this session on how to put two cool technologies together!

18:00 UTCPractical Ubuntu One Files Integration

Yet again the Deja-dup rockstar and UADW regular Michael Terry will be sharing his deep knowledge on developing apps. This time it’s about adding cloud support to applications: integrating with the Ubuntu One files API.

19:00 UTCPublishing Your Apps in the Software Center: The Business Side

Closing the series of sessions around publishing apps in the Software Centre, we’ll have the luxury of having John Pugh, from the team that brings you commercial apps into the Software Centre and who’ll be talking about the business side of things.

20:00 UTC – Writing an App with Go

Go is the coolest kid around in the world of programming languages. Gustavo Niemeyer is very excited about it and will be showing you how to write an app using this language from Google. Be warned, his enthusiasm is contagious!

20:00 UTC – Qt Quick At A Pace

A last minute and very welcome addition to the schedule. In his session Donald Carr will introduce you to Qt Quick to create applications with Qt Creator and QML, the new declarative language that brings together designers and developers.

Looking forward to seeing you all there!