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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3
votes
3answers
1k views

How can I write Ubuntu apps in Java?

I am new to linux. I want to develop apps for Ubuntu desktop and mobile using Java.
14
votes
5answers
9k 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, ...
1
vote
2answers
2k views

boost 1.48 and default (1.46) on Precise Pangolin12.04

The Precise release of ubuntu has two libboost-dev packages. The default is 1.46, but there is also a 1.48. If I install both, where are the headers and libraries for 1.48 installed? Are the ...
50
votes
1answer
28k 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 ...
2
votes
1answer
311 views

Where are the different app icon sizes submitted through the app developer site used?

When I submit an application through the app developer process in MyApps, I'm asked to submit icons in different sizes: 128px, 64px, 32px, 16px. Where is each of these icon sizes used when my app ...
7
votes
1answer
597 views

How to make Glade load translations from /opt

I've created an application that I'd like to submit through the Ubuntu app developer process. One of the requirements for the process is that when installed, all files go into the ...
7
votes
1answer
605 views

How to embed a GtkAboutDialog's content in a GtkNotebook widget

I'm writing a Python app that is tab-based, and I don't want it to have any additional pop-up dialogs. I'd like to use the Gtk.AboutDialog functionality, but I don't want it to appear as a separate ...
21
votes
3answers
3k 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 ...
6
votes
3answers
488 views

How do I integrate an application in the sound menu using python?

I don't necessarily expect a whole tutorial for creating a sound indicator entry here on askubuntu, but I've searched and searched, and I can't seem to find any documentation on creating a sound ...
5
votes
1answer
808 views

How to make a Gtk.ComboBoxText's entry editable in Glade

I'm using Glade to write a PyGI app, and I've come across a problem whereby I've got a Gtk.ComboBoxText with a Gtk.Entry, but I cannot make the entry editable for some reason. I.e. when the UI is ...
9
votes
1answer
638 views

How to highlight buttons in a GTK toolbar

I've written an application using Python and Glade. The app has got a toolbar with a dark background, and each toolbar button has got a custom image (i.e. no stock icons are used). I've noticed that ...
9
votes
1answer
189 views

What is the difference between the release, share and submitubuntu commands in Quickly?

There are 3 different commands in Quickly to release a new version of an app into a PPA release - Posts a release of your project to a PPA on launchpad so that users can install the application on ...
7
votes
2answers
1k views

How to add checkbox or radio buttons to a Unity quicklist?

I have been searching how to make that happen but i can't find it anywhere. I even guessed how to enable/disable the quicklist item, so as how to add function invoked after the item is clicked, but ...
4
votes
1answer
87 views

How to dynamically get name, version and other info from a Python app at runtime

I'm writing an Python app that makes use of a Gtk.AboutDialog. Some of the information shown in the dialog comes from setting properties for bits of info I've just given elsewhere, and I'd like to ...
17
votes
2answers
2k 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?
3
votes
1answer
284 views

Where is the pygame template in Quickly?

Same as the title says. When I want to create a new Quickly project, I don't get the pygame template option any longer. ubuntu-application ubuntu-cli ubuntu-flash-game Those 3 are the templates ...
22
votes
3answers
6k 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 ...
11
votes
1answer
469 views

How do I add a slider to an AppIndicator?

I'm trying to add a slider to an AppIndicator similar to what the Sound Menu has. I've looked trough the code of the Sound Menu and found that I should be using libido-0.1 for that. Here's what I have ...
3
votes
1answer
224 views

Unity lens not included in global search

I'm using the quickly unity lens template here http://developer.ubuntu.com/2012/04/how-to-create-a-wikipedia-unity-lens-for-ubuntu/ It works quite all right, but even though i have set ...
0
votes
1answer
1k views

How to implement a client-server application using CORBA standards?

I have been working on CORBA for making the client-server applications, i have already made some but having difficulty when i use to implement my application using different idls on different server ...
3
votes
1answer
969 views

How to get a proxy for DBus object that is not well known?

I'm endeavouring to use dbus to react to a particular signal (user clicks on an appindicator menu on the unity top panel). From using dbus-monitor, I've found the relevant signal that I'd like to ...
4
votes
1answer
257 views

How do I create system settings entries?

I'd like to start learning how to develop system settings dialogs using Python and GTK. What is required? I know Python and GTK well. The question is how to make the dialogs themselves. Are they built ...
6
votes
2answers
936 views

syncing a GNOME-keyring across devices w/Ubuntu One

I wrote an app that creates and uses its own keyring. I'd like to have that keyring with secrets attributes and all sync via U1 so that the same passwords are available on all the Linux devices. ...
0
votes
1answer
531 views

Custom PyGTK dialog with Glade

I'm building simple PyGTK app using Glade UI designer. I followed pattern from default Ubuntu app, where preferences and about dialog are implemented extending gtk.Dialog, so I added new dialog with ...
4
votes
1answer
282 views

Detect GTK theme change in runtime

I am using this code to set appropriate appindicator icon for my application. Basically I set separate mono dark/light icon for Ambiance and Radiance theme in order to integrate my app into Unity ...
0
votes
1answer
929 views

Python script to check if current IP address is from DHCP or static

How to check if eth address is taken from DHCP or set manually (static) using Python?
3
votes
1answer
806 views

Creating a Gtk window with input shape mask in python

I am trying to create a Gtk3 Window with a custom input mask, so that the window wouldn't receive any mouse clicks. This is a piece of code that I've came up with: surface = ...
2
votes
0answers
150 views

How can I create an appmenu/DBusmenu using python? [duplicate]

Possible Duplicate: How to add support for the global menu to a python non-gtk, non-qt app? I want to add support for the indicator-appmenu to an application that is not written in one of ...
1
vote
1answer
4k views

Why is /dev/rfcomm0 giving PySerial problems?

I am connecting my Ubuntu box to a wireless readout setup over Bluetooth. I wrote a Python script to send the serial information through /dev/rfcomm0. The script connects fine and works for a few ...
1
vote
1answer
696 views

gtk3 window is not redrawn correctly

I am creating a simple GTK3 application. The main toplevel window has a search button which will display another toplevel gtk3 window. When I click the close button (near the titlebar) on the second ...
2
votes
2answers
124 views

Materials for improving coding skills and adapting programs

How can I find and adapt the source code for Ubuntu programs, and what resources are there for improving my programming knowledge in any language? I would like to improve my programming skills so that ...
10
votes
1answer
1k views

How to create a new Quickly application template?

Cannot find the answer elsewhere, I'm asking for a documentation of the process to create a new template for quickly. I'm interested in writing a pyside (python + qt4) template like the pygtk one. ...
4
votes
1answer
380 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 ...
1
vote
1answer
962 views

Detailed quickly tutorial

Hi I kindly need a more detailed quickly tutorial that explain the python code./ For example, adding a login form to an application
1
vote
1answer
221 views

How do I remove desktop couch as a dependency on my application?

Quickly is a great application to create gui apps for ubuntu easily and quickly. Maybe quickly use desktop-couch database as back-end database, which is a problem. I developed a gui apps using ...
4
votes
1answer
473 views

Launchpad could not import your OpenPGP key

Quickly generated a gpg key for me: quickly share Get Launchpad Settings The authorization page: (https://launchpad.net/+authorize-token?oauth_token=*******&allow_permission=DESKTOP_INTEGRATION) ...
1
vote
2answers
875 views

Build binary deb package from python source

I have created python package (using Ubuntu Quickly) and want to create deb package. Unfortunatelly Quickly builds package with source python files (.py) and I want not to include source files. The ...
0
votes
2answers
128 views

Is there a Quickly command to completely remove a project

I am trying out application development with Quickly but I have a couple of projects that I have come to nothing and I want to completely remove them. Is there a command to do that?
1
vote
1answer
88 views

Why is quickly ignoring the setup.py file in my project directory?

Whenever I try to package my application with quickly, the following error pops up in my terminal: And the package is in the directory. Whoop de doo. Then, when I go to open the .deb file in ...
2
votes
1answer
985 views

Where are the dconf profiles?

The dconf System Administrator Guide says that "dconf stores its profiles in text files in /etc/dconf/profile/" but on my 11.10 Ubuntu laptop, there is no /etc/dconf directory. Have profiles been ...
2
votes
1answer
162 views

unity components debugging

Following up on my question here, I would like to ask about best-practices for debugging additions to the unity components. Integrating apps into unity requires many components: service files, ...
4
votes
2answers
159 views

What's the standard way to provide configuration options for a daemon?

I'm in the process of writing a simple C-based daemon mostly for the learning experience. At this point, I've got a working daemon and I'd like to expose some configuration options to users. What's ...
2
votes
2answers
532 views

Ubuntu one API file upload maximum size

I'm making an application using UbunuOne REST API in order to upload files to the Ubuntu storage service. file storage API I can achieve uploading some files, but when I try to upload a large file ...
3
votes
2answers
206 views

Can't get activate_uri signal working when making a lens

I'm trying to develop a lens for unity in ubuntu 11.10 and I can not get activate_uri signal working. This is an extract of my code: def _on_activate_uri (self, scop, uri): print "----> " + ...
0
votes
1answer
283 views

Application indicator + entry widget

I would like write my own application indicator via guide in http://unity.ubuntu.com/projects/appindicators/ (in python) My question - Is there any chance add next to icon indicator entry widget (see ...
2
votes
2answers
113 views

Where is the best place to start projects and attract developers? [duplicate]

Possible Duplicate: What is the best way to develop apps for Ubuntu? I want to develop software for Linux or cross-platform. I want to work with other open-source and non-profit developers. ...
0
votes
0answers
68 views

What Game engines and game libraries are available for ubuntu? [duplicate]

Possible Duplicate: What 2D/3D engines and game SDKs are available? What game engines and game libraries are available for ubuntu? And how to install its latest version
2
votes
1answer
667 views

Can I install 64-bit Eclipse on 32-bit Ubuntu?

I have 64 bit core i5 configuration I have installed ubuntu studio 11.04 (32 bit) on it.It's working fine but for eclipse android development it is not working what should I do? Should I download 64 ...
10
votes
2answers
651 views

Does Quickly support GTK3?

Simple question: can Quickly use GTK2 only or also GTK3 for GUI?