Writing applications for Ubuntu (including Ubuntu Touch) and questions about the application submission process to the Ubuntu Software Center. This covers both open source and commercial applications.

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60
votes
7answers
32k views

What is the best way to develop apps for Ubuntu? [closed]

I want to write applications for Ubuntu. I do not know much about programming but I want develop for Ubuntu. I am trying to learn Python right now. What do you think is the best way to develop apps ...
59
votes
8answers
4k views

How to get my software into Ubuntu?

As a developer of free software, I want to get my application into Ubuntu. Should I provide a source tarball and ask for packaging? Or should I create a package myself? Should I target Ubuntu ...
54
votes
6answers
22k views

What is the best place to install user apps?

Occasionally I am installing application with something other than apt-get or the Package Manager. What is the "best practice" location for installing user apps? (/usr/bin/, /usr/local/bin/, /opt/, ...
52
votes
14answers
6k views

What advantages does Ubuntu have as an environment for programming?

Why is writing a program in text files or via the terminal a better option (as I read) than using IDE(s) like Visual Studio on Windows? Do the features an IDE provides exist there (eg. showing ...
39
votes
1answer
631 views

Has anyone who took part in the App Showdown gotten the promised t-shirt? [closed]

The title says all. On the contest site http://developer.ubuntu.com/showdown/ there's statement "Every submitted app also gets an Ubuntu T-Shirt!". I haven't received anything so far. ...
38
votes
1answer
21k views

Should I use PyQt or PySide for a new Qt project?

Recently I've been involved in conversations about creating a Quickly template for a Qt and QtQuick Ubuntu app. The idea is to make it as easy to develop Qt apps from concept to package as it is right ...
28
votes
2answers
6k views

Connect WebKit WebView form to a Python callback?

I am writing a small Python and WebKit app; I am using WebKit as the UI for my app. What I want to do is to create an interactive element in WebKit (namely a combo box or a set of clickable regions) ...
26
votes
4answers
945 views

How can I publish my project code online so someone can help me with it?

My local project has some code that is not working, and I'd like to show it to someone to have a look at and possibly give me a hand with it. This isn't a short snippet or a single file; there are ...
25
votes
6answers
3k views

How do I develop an Ubuntu application in HTML and JS?

I am developing an app and I think HTML and JavaScript are better for the future, but I cannot find any tutorials (I need the app to use the system theme). Are there bindings for Unity, message menu ...
24
votes
7answers
5k views

How do I develop .NET apps on Ubuntu?

at college we use Microsoft .NET for developing applications. I recently switched to Ubuntu and would like to know similar tools for making apps on/for ubuntu.
22
votes
2answers
644 views

How does Application Review Board work?

According to https://wiki.ubuntu.com/AppReviews the Application Review Process is good both for upstream software developers and Ubuntu packagers. The point seems to be that the upstream developers ...
21
votes
4answers
6k views

Is there any API Document Browser like Dash on Ubuntu?

I've seen my friend enjoy using Dash, in which you could look up all kinds of language document, Java, c#, Android, Javascript, JQuery, etc. That makes life much much more easier!! Does Anyone knows ...
21
votes
2answers
2k views

What is the black header widget in some programs?

In some of the ubuntu programs (ubuntu control panel, system settings), but not e.g. in banshee, the top part of the window contains elements in dark tone (with the Ambience theme). But I cant find a ...
20
votes
2answers
9k views

When to use gconf vs dconf?

Both gconf and dconf editors are available. Given the change to dconf should we still be using gconf at all? Do changes in gconf actually do anything when running 11.10?
20
votes
3answers
4k views

How to start an app with “Always On Top” set?

There are a couple of applications that I find myself marking as "Always on Top" every time I use them, so I wonder if there is a way to automatically set them as so, whatever way I start them (menu, ...
20
votes
4answers
5k views

Can I develop ubuntu for phones apps in Python? [duplicate]

Does anyone know if we can develop apps for ubuntu for phones in Python ? PyQT / PySide would seem to support also QML. But can we use them on the phones ?
20
votes
3answers
2k views

How to add support for the global menu to a python non-gtk, non-qt app?

I'm looking for good documentation (an example, tutorial, or guide) on how to add global menu support to a non-gtk, non-qt application. (In gtk it works 'magically' for the main menu...). The ...
19
votes
17answers
10k views

Is there a Visual Studio style tool/IDE?

I have been developing in the windows space with Visual Studio for a while now with work, but I have also been using Ubuntu for a while and am keen to get into some software development for linux. I ...
19
votes
1answer
1k views

How to add support for new services to Friends?

With the new friends-app landing in Ubuntu, it occurred to me that adding support for Instagram in the timeline would be cool. I also thought I might take a stab at it myself, but I'm having a hard ...
19
votes
3answers
7k views

Why no library files installed for google test?

The libgtest-dev package seems only install header files to the system, but not the static and dynamic libraries which should be installed under /usr/lib. Is it a bug?
19
votes
1answer
37k views

How can I install Qt 5.x on 12.04 LTS?

If you want to develop with QML 2.0 and Qt5, the base packages don't seem to exist in repository for 12.04. What PPA should I add? Is it a binary installer? a compile the toolkit yourself? Those ...
19
votes
0answers
2k views

How do I start developing a lens for Unity? [duplicate]

I would like to know how to create one of those lenses for unity. I know how to program. but I don't know where to start. Are there certain libraries I should use or docs that I should read? Are there ...
18
votes
5answers
3k views

What programming languages should I learn to become an Ubuntu developer? [closed]

Although I have used NetBeans once for a project, what languages do I need to learn to become a full-fledged Ubuntu developer? My project in NetBeans (Java only) was to design a calculator ...
18
votes
3answers
4k views

How do I get started creating an Ubuntu Desktop App?

I want to create an Ubuntu desktop app, specifically to replace Gwibber. I can code in Java, Python and a few other technologies. Adobe Flex would have been an option until Adobe decided to suck some ...
18
votes
2answers
242 views

How to comply with this guideline for submitting an application to the Software Center?

I was reading through the Ubuntu Developer Programme Agreement for submitting applications to the Software Center and stubled across the following clause: 3.1 You must first test Apps you submit ...
17
votes
12answers
4k views

Is there a simple “Hello World” for making games?

Does anyone know of a simple "Hello World" for making games for ubuntu? I've seen the Getting Started with Quickly video. Any examples for platformers or something like that? EDIT: Just a recap of ...
17
votes
4answers
3k views

How to program a status icon that will display in Ubuntu as well as in other distributions?

The application in question does some action (here connecting audio to network streams) and runs minimized if these actions were successful. Therefore a status icon is needed to display the state of ...
17
votes
3answers
10k views

Installing gtk development environment

Not new to Ubuntu or programming but I am new to programming in C and gtk. Have been using Quickly for the odd program. I want to play around with C and gtk. What gtk packages do I need to install to ...
17
votes
3answers
887 views

How to write Appindicators in python?

I'm looking to try and develop some simple indicators, for numlock/capslock and brigthness, etc. How would I go about creating indicators in python? Are there any tutorials that walk me through ...
17
votes
2answers
383 views

How is tax handled for purchases from the Ubuntu Software Centre?

I've just created an account to submit an application to the Ubuntu Software Centre and the agreement says: "You are responsible for determining applicable taxes in connection with distributing your ...
17
votes
2answers
1k views

How do I add applications to the Messaging Menu?

I would like to have an application appear in the messaging menu that is not installed there by default, is there a way to do that on a per-user basis?
17
votes
2answers
235 views

Can I respond to comments in Software Center as app developer?

Is there anyway to respond to some comments privately on the Ubuntu software center? Some users of my app seem to be having problems but have not filed bug reports or asked questions on the launchpad ...
17
votes
3answers
1k views

How can I use the voice recognition used by Android on Ubuntu?

If I'm developing an Android app that uses TTS and Voice recognition, which libraries are used for the same voice recognition and speech on Ubuntu? I'm assuming espeak for text to speech, but I'm ...
16
votes
3answers
2k views

Is it possible to use Python with the Ubuntu SDK?

David Planella wrote in his answer to a question I posted that: ...the recommended way to develop apps for Ubuntu is the Ubuntu SDK. So I installed it, but looks like the supported programming ...
16
votes
2answers
5k views

How can I get started with developing apps for Ubuntu Touch? [closed]

I am interested in trying the new Ubuntu for phones OS development. (I am not an Ubuntu developer, I am new to Ubuntu. Impressed by the Ubuntu Touch preview, I got interested in learning how to ...
16
votes
2answers
1k views

Developing Unity compliant apps in Python - where to start?

I'm an experienced programmer who is interested in developing apps for Linux, specifically GTK, and more specifically apps that are Unity compliant. Aside from the obvious step of learning Python, ...
16
votes
1answer
411 views

How do I get “Quickly” to use Git?

How do I get Quickly to use Git as its default version control instead of Bazaar?
15
votes
4answers
4k views

What IDEs are there for Android development?

I recently bought my first Android phone (HTC Legend). Now I want to develop for it!! :) Is it possible under Ubuntu and what is the best tool? Eclipse or IntelliJ or maybe something else? UPD: It ...
15
votes
2answers
784 views

Testing Ubuntu mobile applications

I'm currently reading a lot about the new Ubuntu mobile (phone) OS, and now I'm wondering if there is the possibility to test applications. I know that QtCreator is the recommended IDE and an emulator ...
15
votes
0answers
561 views

How do I put a package into the Ubuntu repositories? [duplicate]

Possible Duplicate: How to get my software into Ubuntu? I've created a Python application for Ubuntu. How do I package it and submit it for possible inclusion in the universe repository?
14
votes
6answers
2k views

Wanting to start development for Ubuntu (and most Linux distributions in general), which is suitable? Python or Vala?

I'm a computer science graduate, and learned languages like C, C++, C# and Java. Though I have more experience with Java. I want to develop for Linux and I'd prefer to develop for GNOME, I'm confused ...
14
votes
5answers
6k views

How to run asynchronous tasks in Python GObject Introspection apps

I'm writing a Python + GObject app that needs to read a non-trivial amount of data from disk upon start. The data is read synchronously and it takes about 10 seconds to finish the read operation, ...
14
votes
1answer
850 views

What are differences between a lens and scope?

Well it seems those two terms are the most popular ones since 11.04. What truly are the differences and similarities between them (lenses and scopes)?
14
votes
1answer
415 views

How do I apply the fixes suggested from the App Review Board to my app?

I submitted my app to the Ubuntu Software Centre, and it just got reviewed by the Ubuntu App Review Board (ARB). I got an e-mail suggesting some fixes, and I'm not sure about the next steps I should ...
14
votes
2answers
9k views

How can I get a java apps to use the GTK+ theme?

Is there a way to get java apps to use my gtk theme?
14
votes
1answer
792 views

How can GIMP 2.8 have two different icons together?

In Unity dash GIMP 2.8.10 has a icon and uses a different one in launcher. GIMP in Dash GIMP in Launcher I searched for GIMP in "File System" and got this. How can this be done while ...
14
votes
4answers
960 views

Developer resources for desktop apps?

On developer.ubuntu.com most resources seems to be targeted to Ubuntu touch. If I wanted to write an Ubuntu desktop application, where can I start? Is the Ubuntu SDK for the desktop too? I read that ...
14
votes
1answer
1k views

What is http://extras.ubuntu.com/ repository for?

What will this repository hold? What is policy for it?
14
votes
3answers
763 views

Developer documentation for the Messaging Menu?

The only documentation I have been able to find on integrating an application with the Messaging Menu is old and out of date: ...
14
votes
1answer
1k views

Is there a detailed API documentation on the python binding for appindicator?

I'm getting serous with a project of my own and need a good documentation on the appindicator module for python. What I've found so far: API documentation on dev.ubuntu.com Community wiki entry API ...