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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13
votes
2answers
276 views

How can a free, proprietary application be submitted to the Software Center?

I'd like to suggest to the developers of simfy that their desktop application be submitted to the Software Center. How should they go about doing this?
6
votes
1answer
508 views

How to insert Video element in my Ubuntu application?

I saw on some sites that you can insert videos with the Video element by importing Qt 4.7 and QtMultimediaKit 1.1 . But I have an error by compiling the project (it's a tabbed touch UI project): ...
3
votes
2answers
6k views

How to use a SQLite database from QML? [duplicate]

I have not been able to find a working example in QT creator or gallery to use SQLite offline storage API for an Ubuntu touch application.
3
votes
2answers
320 views

Quickly packaging errors

I'm having some trouble packaging my Quickly (Python/GTK) app. Creating and packaging a new app (created using quickly create test and cd test; quickly package) works just fine, but the actual app ...
5
votes
2answers
3k views

Changing Python default in 12.04 LTS

I have downloaded and installed python 3.2.3 for Ubuntu/Debian. Also IDLE IDE for 3.2.3. If I execute IDLE for 3.2.3 explicitely, 3.2.3 runs under IDLE and all is well. But if I go to a terminal ...
4
votes
2answers
2k views

How do I give root privileges to an app?

I tried to submit an app to the Ubuntu Software Centre but it was rejected because you needed to put in the admin password to use it. I need to grant root privileges to the app for it to function so I ...
4
votes
1answer
448 views

Where does Quickly get the PPA name from?

I am trying to publish an app with Quickly: $ quickly share Get Launchpad Settings Launchpad connection is ok ppa:umpirsky:ppa does not exist. Please create it on launchpad if you want to push a ...
4
votes
1answer
108 views

How can I contact the developers to ask to upload new software in the USC?

BZFlag is a free, open source, online multiplayer video game. Now the problem is: In the BZFlag website under the section download, http://bzflag.org/ you can download the windows .exe and the source ...
4
votes
3answers
227 views

Will applications in the software center receive updates of new versions?

Is it possible to provide updates for software in Ubuntu 11.10 software center. For example upcoming versions of vlc, inkscape and many others.
4
votes
1answer
771 views

How to add a MIME type with a project created in Quickly?

I've built an application I want to release however I would like the files to open with the application. I have modified the .desktop file accordingly, however quickly seems to have no option for ...
3
votes
2answers
299 views

How do I simply run an ubuntu touch app from the terminal?

I've got a qml file and I just want to ssh to the phone and do qmlscene myfile.qml Is it possible without doing all that stuff with SDK and packages? Just vim and some simple commands that can fit ...
2
votes
1answer
153 views

Installing a program on a ubuntu touch phone

I searched on the website but didn't found an answer. I heard a lot that developing an application with C, C++ or anything else. Is it really possible ? What I mean : Imagine I develop a program in ...
26
votes
3answers
9k 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 ...
10
votes
4answers
467 views

How do I add a daemon to my Quickly application?

I am building a app with quickly, and I wanted to add a daemon that will run in the background. How do you do this?
14
votes
1answer
2k 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 ...
9
votes
5answers
4k views

How can I update the Ubuntu SDK preview from the Qt 5 Beta PPA to the Qt 5 Release PPA

When the Ubuntu SDK preview was announced on the 2nd of January, it was based on the Qt 5 Beta release (as Qt 5 had not yet been released and packaged for Ubuntu). At some point, the Qt 5 release was ...
8
votes
1answer
6k views

Can I develop a hybrid native/HTML5 app for the Ubuntu Phone?

Can I develop a hybrid app that was used in conjunction with the native API and HTML5 in Ubuntu phone? I know that it is possible to develop either native app or HTML5 app. However, I want to know ...
21
votes
3answers
23k 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 ...
20
votes
5answers
6k 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 ...
4
votes
3answers
3k views

How do I get the names in my icon theme for use with pythons appindicator module?

How do I get the strings I can insert instead of 'gtk-execute'? #!/usr/bin/python import gobject import gtk import appindicator if __name__ == "__main__": ind = ...
16
votes
1answer
437 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?
12
votes
1answer
217 views

How do I participate in the Ubuntu App Showdown?

How can I sign up for this event? I was reading this page: http://developer.ubuntu.com/showdown/ . My understanding is that I just need to mention my project to @ubuntuappdev on Twitter, and submit ...
6
votes
2answers
545 views

How do I use OAuth from an Ubuntu Touch app?

I'm writing an Ubuntu Touch application in QML. I'd like to integrate with Trello. There are two ways to log into Trello in the API, one of which is OAuth, which I plan on using. What is the best way ...
6
votes
1answer
1k views

How do I submit .jar file to the ubuntu software center

I am writing an app using JAVA Swing for all platforms. After that I want to add this app to Ubuntu Software Center for free Is it possible? My app is just one *.jar file, its helping to play card ...
17
votes
2answers
400 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 ...
13
votes
3answers
3k views

How do I call a dialog for authentication?

I am writing a gui program using wx module in python. In program whenever I am accessing a folder which requires root privilege then it asks password at terminal but I want to display the dialog to ...
12
votes
3answers
2k views

Where to store user settings for an app?

If I want my application to store a few settings, that persist when an application closes, then where should I store them? I'm not talking anything complicated: two booleans and a string (although in ...
7
votes
3answers
156 views

Is there anyway to contact whoever handles commercial apps for the Software Center?

I have some problems with the way my app is published due to a name change. Also, I want to inquire as to if/how my application can be made available for Oneric Ocelot, and when they come out future ...
6
votes
1answer
2k views

What programming languages are scopes written in?

I'd like to get started writing a Scope for Ubuntu. What programming languages are available and what should I choose?
5
votes
2answers
2k views

How can I make a HTML5 app for Ubuntu Mobile?

Is there any tutorial? I made some apps in HTML5 but I don't know how to "compile" or transform this code to obtain an Ubuntu Mobile App. Thanks for your help.
4
votes
1answer
234 views

What does the head: property do on Page{} in qml?

I have an app that I am trying to get the toolbar in the header to work. In the documentation I've noticed a property called head that seems to create and add items to the header toolbar. What is the ...
4
votes
6answers
3k views

Which window has current focus?

I'd like to know (programmatically) which window has current focus. Is there a window-manager independent way of discovering that? Otherwise, how does one determine which window has focus in Compiz ...
1
vote
1answer
945 views

Ubuntu App Development. Unable to install Ubuntu SDK and buggy Ubuntu emulator

Hello I have installed Ubuntu 14.04.1 and I have no more patience to struggle with my problem. I can't install ubuntu-sdk package: Some packages could not be installed. This may mean that you have ...
12
votes
1answer
2k views

Apport support for non ubuntu packages

I have been reading about apport and its usage for a week by now. But could not understand the below things. Scenario: I have developed an application and packaged it. And its name is MyApp.deb. The ...
12
votes
1answer
305 views

Promoting an app in the Ubuntu Software Center through a ratings and reviews API

As an app author, I would like to promote my app in Ubuntu. One nice way to do it is to encourage users to submit their reviews and ratings to the Software Center. It would be really cool if I could ...
10
votes
3answers
211 views

Install a 'recommended' package when user asks for corresponding action

Let's say that I am building an application to a DEB package, which has as recommended dependency a package, let's call it package1. So, package1, if installed, can provide extra functionality to my ...
9
votes
2answers
2k views

Playing Sound with Ubuntu QML Toolkit preview

I've installed the Ubuntu QML Toolkit Preview as per the instructions on http://developer.ubuntu.com/get-started/gomobile/ (with a minor fiddle to get it working on 12.04). I'm trying to write an app ...
7
votes
1answer
3k views

Are Qt Quick Controls available on Ubuntu 13.10?

I was looking to do UI development in QML, and I really want it to look native. I found the QtQuick.Controls (http://qt-project.org/doc/qt-5.1/qtquickcontrols/qtquickcontrols-index.html), but when I ...
7
votes
1answer
675 views

How do I add a Notebook to a Box in a VBox?

I have created an empty box in Glade to add a Notebook to. The reason I am not adding the actual Notebook in Glade is because I hear that you cannot add pages to a Notebook made in Glade. So, in ...
7
votes
1answer
123 views

Are the Ubuntu App Developer Showdown Workshops recorded?

I am a new developer who wants to participate in the Ubuntu App Showdown. I would like to go to the Ubuntu App Developer Showdown Workshops but its abit hard with my schedule. Will these workshops be ...
6
votes
1answer
300 views

How do I upload an updated package to my PPA without having Quickly mess it up?

As part of Ubuntu App Showdown I received comments on deb packaging (as maybe all other participants). Those can be easy fixed and I spotted them before, but debian packaging files are managed by ...
5
votes
1answer
345 views

What is the naming convention for click packages?

I have made a Ubuntu Touch app and intend to upload it to the Click app store. What is the naming convention that I should use for naming my click package?
4
votes
1answer
1k views

Why is my Ubuntu Touch app not visible in the Ubuntu Software Center?

I submitted a Ubuntu Touch app packaged as a Click package to the Click App Store and it was published a few days ago. It is not in my Ubuntu Software Center, or in the online version. I tried a lot ...
4
votes
1answer
2k views

Ubuntu Touch app with c++ core and QML interface. How to create?

How to create Ubuntu Touch application with c++ core? In examples I see only pure QML apps.
3
votes
2answers
108 views

How do I get involved in Ubuntu?

I recently graduated from a H.Dip course in Software Development. I really want to get involved in some Ubuntu desktop development projects. I'm most competent in Java and also have MySQL knowledge. I ...
3
votes
2answers
1k views

Will it be possible to create apps/games in Java SE or Java ME on new Ubuntu phones?

Will it be possible to create apps/games in Java SE or Java ME on new Ubuntu phones?
3
votes
2answers
616 views

Facing problem with “gtk.RESPONSE_OK” in the simple-player quickly tutorial

I am fairly new to both quickly and Python. I am facing several problems while learning to use quickly from the following tutorial on the Ubuntu developers site: ...
3
votes
2answers
351 views

How to programmatically fetch a list of applications from the Software Center

Im writing a PyGI app where I'd like to show a list of matching applications from the Ubuntu Software Centre in an auto-completion text entry or dropdwon. I haven't yet figured out the best way to ...
2
votes
4answers
2k views

GtkFileChooserButton 'Select Folder' mode returns no path

I have added a GtkFileChooserButton to my app via Glade. It is set to folder selection mode. When the widget is clicked it shows a dropdown list of Nautilus bookmarks with an 'other' option in the ...
1
vote
2answers
203 views

Why does “quickly share --ppa share” abort with a “can't create” error?

I can not figure out what I am doing wrong. The package builds ok with quickly package, I could submit it, but I can not update my ppa. Here is what I got: desgua@desguai7:~/quickly/sbk$ quickly ...