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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2
votes
1answer
31 views

Why does the Ubuntu SDK tell me, “do not use comma expression”, and what should I use instead?

So for example: onCurrentlyExpandedChanged: flickable.DragOverBounds, flickable.contentHeight += itemHeight,console.log(itemHeight) The commas will have a yellow underline, and the tooltip will ...
1
vote
1answer
92 views

Why am I getting the error “Cannot assign to non-existent property ”head"?

I'm actually on Trusty, and I want to try new "head" property which comes with API 14.10 of Ubuntu SDK. When I launch qmlscene to test my applicaton, I get this error : Cannot assign to ...
1
vote
3answers
205 views

Will an Livecode Application Developed for Ubuntu Destop work for Ubuntu Mobile?

I was wondering if the any applications developed with Livecode (www.runrev.com) for a Desktop Linux platform would be able to run natively on Ubuntu Mobile devices (tablets). Livecode can generate ...
1
vote
1answer
34 views

Why my application crash on ubuntu-touch?

I want to try to create un application for ubuntu-touch with QML ! I was created a simple application : import QtQuick 2.0 import QtQuick.Controls 1.1 import Ubuntu.Components 0.1 import ...
2
votes
0answers
37 views

Targetting Boost 32-bit While on 64-bit ubuntu?

Well i have libboost-all-dev installed, but i am trying to compile for 32-bit. I can't install libboost-all-dev:i386 either. g++ -lboost_filesystem main.cpp g++ -m32 -lboost_filesystem main.cpp The ...
3
votes
0answers
71 views

(QML) Flickable not working as supposed

So, while building an Ubuntu app I needed to use Flickable for scrolling, so now I have code of the form Page{ ... Flickable { anchors.fill: parent content.height: element1.height + ...
1
vote
1answer
17 views

Why do I get “Value of Key 'Comment' is empty” in my app review?

I uploaded a Ubuntu SDK app for review on https://myapps.developer.ubuntu.com and the review is pending, because there are errors. One is the following: "desktop_validates (iamonair)": { "link": ...
0
votes
0answers
42 views

By mistake I removed Python. Terminal, music player, video player, Software Center etc. are gone

I work on Ubuntu 14.04 to install Python and other packages I entered the following command : sudo apt-get install python python-pip python-pyparsing python-mysqldb gunicorn nginx git-core ipython ...
0
votes
1answer
24 views

Does a virtual whiteboard that offers real time editing exist for ubuntu?

I'd like to give a presentation to several people using skype. Now....the thing is that I want them to look at a document that I previously created and give me real time answers to my questions. Is it ...
0
votes
0answers
27 views

Shared library problem: OpenMesh

I have a Qt app with OpenMesh dependency. I built the OpenMesh library from source: cmake ... make make install It installed to the /usr/local/lib/OpenMesh folder: libOpenMeshCored.a ...
0
votes
0answers
20 views

Packaging using Quickly and Python 3

I have written an application using Quickly with Python 3. I have adjusted everything necessary for running with Python 3, converted headers to #!/usr/bin/python3, fixed helpers.py, etc. But when I ...
0
votes
1answer
59 views

Get rid of orange edge around radio buttons

I am currently working on a GTK+ 3 program and I constantly encounter this rendering mistake. The edges around radio buttons are drawn orange which is especially visible when the window is passive and ...
0
votes
2answers
53 views

Developing NodeJS for Ubuntu Touch:

I'm new here and interested in developing apps for Ubuntu Touch. Already got the developer version running on a tablet model P3110. What I'd like to know is if it's compatible with NodeJS or if it's ...
-2
votes
1answer
36 views

Was developing WUBI a difficult endeavour? Why or Why Not? [closed]

The only thing which I know about WUBI, is that it allowed you to install Ubuntu on NTFS. One might think that this was an easy application to develop, as all it was on the surface, was installing ...
9
votes
2answers
618 views

Make sniqt recognize all tray abilities (or create a working indicator in Qt)

There is this old thread of mine: How do I create a working indicator with Qt/C++? where I was suggested to use the QSystemTray library for making a tray icon in Ubuntu for my application. Sniqt is a ...
3
votes
1answer
89 views

Why can't I use the 14.10 development apis?

So I am developing an Ubuntu Touch app and I am running the devel (utopic) channel on my phone, but 14.04 on my PC. I've changed the manifest to use the 14.10 framework, but when I run it on my phone ...
17
votes
2answers
238 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 ...
4
votes
1answer
44 views

Ubuntu Apps Developer Team

I'm writing on behalf of getting answers for a few questions. I have a team and we have to develop apps for Ubuntu Software Centre. I am the team leader and I have two members and we are growing ...
0
votes
0answers
27 views

How to make Unity desktop webapp (not Touch) [duplicate]

I want to make an Ubuntu desktop app that will display my website, kind of like the Amazon app that comes in the default installation. I am not trying to make an app for Ubuntu Touch, nor setting up ...
0
votes
0answers
19 views

Can you develop plugins for Ubuntu's Browser yet?

Can you develop plugins for Ubuntu's Browser yet? Is there a framework available yet?
1
vote
2answers
138 views

How to run an action when clicking on an appindicator

I'm looking at writing a simple app indicator and I need it to update it's information whenever it's clicked on to open the menu. Is there any kind of on_click action thing? Let me rephrase it then: ...
0
votes
1answer
35 views

where is “killer gegls from outer space” source code [closed]

I want to modify the game Killer gegls from outer space. Linux OS Easter egg. only I cant find the source-code. Where is it?
-1
votes
1answer
21 views

How do I uninstall a click package? [duplicate]

As a developer, how do I uninstall a click package for Ubuntu Touch / Ubuntu Phone?
2
votes
1answer
165 views

Custom widgets/controls in application indicators

I want to develop an app for ubuntu, that integrates inside the calendar indicator/menu. It should allow to enter info right from it, and have several controls like input boxes, drop downs, spinners ...
6
votes
2answers
143 views

Is it possible to update the app indicator from code?

I use ruby-libappindicator bindings to manage ubuntu application indicators. I want to indicate if port 3000 is used by any application. Port checking isn't a problem but I also need to update the ...
0
votes
0answers
120 views

permission denied when starting android sdk

I have been developing Android apps on windows but setting up my PC to develop android apps has been very daunting on Ubuntu 14.04. I followed the steps from this tutorial at xda-developers but on ...
3
votes
0answers
90 views

How to create an Ubuntu Touch app with a C++ backend and a QML interface [closed]

I'm looking forward to the release of Ubuntu Touch and thought it would be nice to contribute a small and free app that I'm also using now on my Android phone. The free and open source app for ...
0
votes
1answer
57 views

gtk header files libgtk2.0-dev package paths broken by install directory hierarchy

Ubuntu 14.04 Desktop I installed the gtk 2.0 dev package using apt-get. I see the header files in /usr/include are inside a directory gtk-2.0 (/usr/include/gtk-2.0) instead of the root include ...
0
votes
0answers
33 views

Mir based desktop sharing?

I am asking this because I am developing a pair programming plugin, and would like to know if Mir has any desktop sharing capabilities either planned or already existing. This would be to share built ...
1
vote
1answer
43 views

Pair Programming in Ubuntu SDK?

How do you do collaborative code editing, aka pair programming, in the Ubuntu SDK? I heard you can do this in Vim, and I wonder if the Vim functionality in QtCreator makes this possible.
1
vote
0answers
16 views

About is not working in My Ubuntu App for desktop

I have developed the same app "mybrowser" told by Jono Bacon in his tutorial. But when I want to see About it is throwing the following error: Gtk.Window.__init__(self, type=type, **kwds) ...
1
vote
1answer
45 views

How to publish a jar application to Ubuntu Software Center?

I want to upload a simple desk toy to the Ubuntu Software Center, I've researched and I can't seem to find the answer. Do I need to upload as .jar or .zip or .deb?? My jar file is an executable jar. ...
1
vote
1answer
59 views

Building HTML cordova app and running directly on physical device

I've just finished to create simple HTML/Cordova application on Ubuntu. It works fine on the desktop. I just want now to build it, copy to real UBUNTU device and run it (Not from SDK). Which files ...
0
votes
1answer
29 views

How to develop applications for Ubuntu Software Center? [duplicate]

I'm learning python. I have completed first three tutorials recommended by official python page. What are the best steps for me to continue? Should I just continue learning python? Should I start ...
1
vote
1answer
14 views

What does functional_qml_application_uses_friends mean?

In a review for my click package, I saw the following message: functional_qml_application_uses_friends What does it mean and how do I fix it?
3
votes
0answers
527 views

TypeError: Cannot call method 'hasOwnProperty' of null, while creating a QMLscene window

I am trying to make a simple Ubuntu Touch web application with Qt Creator. I have set up a new project according to the tutorial and committed the files to Bazaar. I have set a url instead of the ...
1
vote
1answer
87 views

Execute Javascript Code in Oxide

I'm Looking for an oxide equivalence to this QtWebKit Function: WebView.experimental.evaluateJavaScript() Or WebKitGtk WebView.execute_script() I'm having problems to find documentation about ...
0
votes
0answers
11 views

Looking for some starter help for Ubuntu package building

So far I have followed and understand the Ubuntu Packaging Guide and have skimmed through the Debian Maintainers Guide a bit. My question comes down to making my package outside of the normal ...
1
vote
2answers
854 views

Change font programmatically for GTK3 TextView (quickly-widgets TextEditor)

In an app using PyGI and GTK3, I'm trying to let the user set the font family and size in a TextView through my app's settings dialog. In PyGI the TextView object has "set" methods for several ...
1
vote
3answers
54 views

Can I find my car with my portable device?

Is there any software on Ubuntu which allows me to find my car with my tablet or cell phone which is running Ubuntu Touch? When I lost my car, I would like to use Ubuntu Touch on my portable device to ...
2
votes
0answers
39 views

How to specify target architecture in quickly apps?

I'm building a quickly-app, Do I have to specify somewhere the architecture (amd64,i386,etc) in which my app can run? Thanks in advance. Regards.
2
votes
0answers
38 views

Are USC applications allowed to install .desktop files?

Ubuntu's official site for developers says: Technical requirements: In order for your application to be distributed in the Software Centre it must: Be in one, self-contained directory when ...
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 ...
0
votes
1answer
58 views

Developing Mir GUI on Ubuntu Server

The question is: How would I develop a C++ GUI application using Mir on Ubuntu server? I've installed all the packages that relate to Mir: mir-demos, unity-system-compositor, libunity-mir-dev, ...
3
votes
2answers
84 views

What to learn Ubuntu application development in python, where to start?

I know basic python and i love it. I want to learn how to develop and publish Ubuntu applications in python but don't know where to start (I mean "the standard ways" to do so). It would be good if you ...
1
vote
1answer
100 views

Problem with QtWebkit and QML in PyQt5 App Ubuntu for Devices (Ubuntu Touch)

I'm having problems with qtwebkit in ubuntu for devices (Nexus 10) when using pyqt5, the webview element doesn't show, and the application closes. But if I test the same .qml file with qmlscene it ...
0
votes
1answer
25 views

Button Click not recognised in Quickly

I am running quickly 12.80.1-0ubuntu2 and for some reason the apps that I generate no longer recognise button clicks. A few weeks ago I created an application using the ubuntu-application template ...
0
votes
1answer
79 views

Read lines from a text file in QML Qt/Quick

I need open a text file and read it's contents line by line and store each lines in a string list in qt quick 2.2. Can every one help me?
17
votes
3answers
991 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 ...
4
votes
2answers
1k views

What are some good developer resources for QML/Qt Quick?

I have seen the tutorial for the mobile platform on the Ubuntu developer site, but I am completely new to the Qt stack. Are there any other good resources for getting started with Qt/QML/Qt Quick?