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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0
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1answer
59 views

Why does not app update appear in Software Center?

I have submitted an update (v 1.1.0) for Brightness Controller and it was packaged about two months ago. But it still does not appear in Software Centre. It shows 1.0.1 (the previous version) ...
4
votes
6answers
2k 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 ...
0
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0answers
14 views

Porting App created using Ubuntu SDK onto an Embedded linux board

I have created an App using the Ubuntu SDK, which I want to port onto an embedded linux based device. The App uses QML and C++. How should I package the app for deployment taking into account the ...
8
votes
3answers
717 views

What are the alternatives for notify-send?

I use notify-send for desktop notifications and I get notifications with expected summary and body. However, notify-send has limitations and so I would like a few recommendations on alternatives for ...
1
vote
0answers
343 views

module verification failed signature and/or required key missing

I am working on a kernel module, which is working fine. However, looking through dmesg, I see a message regarding my module that module verification has failed (module verification failed signature ...
6
votes
1answer
983 views

What is the correct way to use g_signal_connect() in C++ for dynamic unity quicklists?

I want to make my application use dynamic unity quicklists. For building my application I am using C++ and the QtCreator IDE. When a menu action is triggered I want to be able to have access to a ...
2
votes
1answer
603 views

Convertion of tiff image in Python script - OCR using tesseract

I want to convert a tiff image file to text document. My code perfectly as I expected to convert tiff images with usual font but its not working for french script font . My tiff image file contains ...
3
votes
1answer
47 views

Unable to access i18n in QML app's JS file

I'm having trouble importing the i18n library included in Ubuntu.Components 0.1 for use in a JS file. I initially ran into my question/problem while hacking on the 'Clock' Ubuntu Touch core app, but ...
0
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0answers
36 views

How do I add C++ Source and Header Files to UbuntuSDK Project?

I am trying to add some C++ Code to an Ubuntu SDK Project which is (GUI) based in QML. Unfortunately I can't seem to understand how I am supposed to do this. Usually QTCreator allows me to right click ...
1
vote
1answer
87 views

Ubuntu SDK: QML with C++ recommended App Design Methodology

Are there documented general guidelines for mixing QML with C++ for ubuntu apps? "QML for UI design and C++ for logic" seems to be the trend. Is this the right way forward?
2
votes
2answers
2k views

How can I create a simple debian package from binary?

I have been researching debian packaging, but I can't seem to figure out how to package a C# mono application made up of a single executable and a few resource files. Can anyone help me figure out? ...
2
votes
2answers
554 views

QML Qt 5.2 problem with mp4 video

I have qt 5.2(ubuntu sdk) installed on Ubuntu 14.04 When I try to run QML code: MediaPlayer { id: mediaPlayer source: "../path/test.mp4" autoPlay: true } VideoOutput { id: video ...
4
votes
1answer
79 views

How come many of the AppShowdown apps aren't available in Ubuntu anymore?

After upgrading to 12.10 I've noticed that I can't install some of the nice apps created for the AppShowdown, such as: Cuttlefish Blubphone (Lightread also came out quite late in 12.10) It seems ...
0
votes
1answer
61 views

HUD and menu integration for Ubuntu Touch apps

Is there a way to move the Tabs into a menu, or the toolbar options into a menu? It would be nice enough to have the toolbar options display in the menu when on the desktop.. Is there any work to add ...
2
votes
3answers
101 views

What is the best way to start developing ubuntu touch apps? [closed]

I'm a starting programmer and I can write c++ programs (nothing more or less). I want to get started with writing Ubuntu touch apps, but I have no idea were to start. Should I just jump into it, or ...
1
vote
2answers
63 views

Can the C++ API be used to develop scopes for Unity 7?

I want to develop a Unity 7 scope for Ubuntu 14.04. I've found a nice introduction here, but unity-scope-tool depends on Unity 8 which I don't won't to install. As I can see, most of the other scopes ...
0
votes
1answer
55 views

How to package a net-beans java project for Ubuntu

I'm in final year of my b.tech, for project I have created an multilingual dictionary in Java (net beans 6.7.1) in which we can search words meaning, its synonyms, antonyms and an example, or if its ...
0
votes
1answer
28 views

Ubuntu Touch App File Type

Hello I was wondering what type of app files you can upload to the ubuntu touch app store It is apk files?
16
votes
3answers
12k views

Gradle in Ubuntu

It appears that Ubuntu doesn't have new versions of Gradle in their repositories for some reason. I need it for a project that will be build by Launchpad. What should I do about this?
0
votes
0answers
30 views

How to generate final application to publish in Ubuntu Touch Apps?

I created a simple application for Ubuntu Touch, but I do not know how to generate a final package. I click "Publish" and put in the information needed (Name, Maintainer, Title, etc...), but if i ...
4
votes
1answer
121 views

What does desktop_Icon mean?

I've submitted an app to the software store but it gets sent back with this error:- desktop_Icon What does this mean and how do I fix it?
1
vote
1answer
97 views

How To install kivy for python and its dependencies to build android apps?

I have ubuntu 12.04, I read the documentations and it confuses me, I just want to know what to type in the terminal or what and how to download whatever I need. Please Help.
2
votes
0answers
23 views

Deleting a application draft

I accidentally started submitting a click application when I meant to submit a desktop application is there a good way to delete it in the draft state? I searched around the "Manage" menu and I tried ...
2
votes
1answer
66 views

Is it possible to develop Ubuntu Application using java

I am a Java Developer & want to develop application for Ubuntu. I also visited developer.ubuntu.com site and successfully installed Ubuntu SDK and Editor but it is on Unity code and HTML views. I ...
0
votes
2answers
117 views

How to change window opacity dynamically in Python and Quickly?

The app is written in HTML and is running using webkit and Quickly. The opacity can be changed using Glade. I want to add a slider functionality in HTML which will change the title of the HTML ...
1
vote
1answer
41 views

What requirements should my App meet in order to be accepted into Ubuntu App Store?

This question attempts to identify the constraints an Ubuntu (Touch) App should consider, in order to be accepted by the App Store. Should it be stable not beta? Should it not allow users to ...
1
vote
3answers
52 views

Click package validator is missing from Ubuntu SDK!

I can't see an option to validate click packages in ubuntu-sdk. Am I missing something? I'm on Ubuntu 14.04 ubuntu-sdk version : 1.126 qtcreator-plugin-ubuntu version : ...
0
votes
1answer
48 views

Where does dm crypt keeps crypt list?

If we enable encryption via cryptsetup tool on linux. Where does it keeps the crypt list/ encryption disk sector information etc ? Is it resides inside the LUKS header or device mapper kernel itself ...
1
vote
1answer
79 views

Ubuntu Touch - Multiple App Windows

I'm learning how to make Ubuntu Touch OS applications, and I looked all over the web for something, but didn't find any satisfying results. This is either because I am the first to ask this question, ...
1
vote
1answer
48 views

How to use QAudioOutput in Ubuntu Touch

When I run QAudioOutput on Ubuntu Touch in confinement, It reports permission error. Basically it is trying to create a directory in /run/user/*/pulse which is rejected by the confinement. How to ...
1
vote
0answers
243 views

How to deploy my Qt app statically on ubuntu ? It is running on ubuntu 14.04 only

I wrote a application with Qt 5.x and the compiled binary is only working on my development machine running 14.04 on other machines running 14.04 on linux mint 16 I already inserted the CONFIG ...
1
vote
2answers
175 views

Right package for JSON-GLib development headers

During configuration of one project, I got the error: checking for JSON... no no configure: error: You must have JSON-GLib >= 0.14.0 development headers installed to build. make: *** ...
0
votes
0answers
32 views

QML: How do I set my icon in the Ubuntu SDK with a CMakeLists based project?

How do I set my icon in the Ubuntu SDK with a CMakeLists based project? Do I need a specific type of image file, or can I use just a png?
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0answers
14 views

revkit installation [duplicate]

so i need to install this software called revkit on ubuntu 12.10. below are the instructions as per the manual: Requirements RevKit needs a couple of packages which can easily be installed with the ...
1
vote
1answer
47 views

develop or contribute to ubuntu community

I'm a newbie to ubuntu development. I have developed many apps for windows. My college and school uses only windows. So, I'm very familiar with developing in windows. But, when i wanted to switch over ...
4
votes
1answer
117 views

Correct handling of application URIs from Unity Dash

At some point, Unity changed the Uri type it returned when a drag-n-drop operation occurred of applications from the Unity Dash to a Gtk window in an app I wrote. In 13.04 (Unity 7.0), the data call ...
3
votes
2answers
44 views

How to go back from a PageStack's Page to the parent tab in the UI Toolkit

So in a previous question I tried to use the Ubuntu UI Toolkit to nest a PageStack within the Tabs component. It seemed to work, but it had its quirks, so I'm now trying another option, which in ...
4
votes
2answers
98 views

How to hide the header of the Tabs component

I'm writing an app using the Ubuntu SDK, and I've got a PageStack component inside aTabs component. When I load one of the pages inside the PageStack, it all works well, and in the header the name of ...
4
votes
1answer
122 views

What does .gu stand for?

What does .gu stand for? For example: ConditionalLayout { name: "row" when: layouts.width > units.gu(50) //right here Row { anchors.fill: parent etc....
1
vote
1answer
37 views

QML: How to display a “<” character in a richTextBox?

The code in question: description.insert(0,"<tr><td><H1> ---Less-Than-Sign-Here--- </H1></td><td><font face='Ubuntu'size='3'color='#f37420'> ...
2
votes
1answer
27 views

ActionSelectionPopover - populate dynamically

I am trying to populate dynamically an ActionSelectionPopover... Does any one ever got it working? this is the static way to get it work: ActionSelectionPopover { id: popMeUp data: bitrates ...
3
votes
1answer
49 views

What is the difference between Ubuntu.Components and QtQuick?

QtQuick 2.0 Ubuntu.Components 0.1 Are two common imports when developing applications for Ubuntu. Are these classes? Can you import member functions this way? If yes, how can tell what member ...
0
votes
0answers
76 views

Is it possible to send a return code with the Qt.quit() signal from QML?

I'd like to know if it's possible to send a return code from a pure QML application using the Qt.quit() signal so that qmlscene can exit with the same error code. I don't need a solution using C++, I ...
2
votes
1answer
482 views

Unable to start a QML app using qmlviewer/qmlscene

I'd like to start writing QML applications. I followed this tutorial: http://qt-project.org/doc/qt-4.8/qml-tutorial1.html my code is: import QtQuick 1.0 Rectangle { id: page width: 500; ...
4
votes
1answer
202 views

Ubuntu SDK QML how to change the background color of TextField

I have a situation where the background color of my QML app MainView causes the textfield entry to have grey lettering on equally dark brown background. This makes it almost impossible to read what ...
0
votes
1answer
38 views

How can I access an attribute of the selected option in an OptionSelector?

I have an OptionSelector that delegates to an OptionSelectorDelegate, and has a ListModel for the model. How should I access the "sometext" attribute of the ListElements? OptionSelector { id: ...
21
votes
3answers
8k 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?
0
votes
0answers
95 views

How can I deploy 32 and 64 bit versions of my application in the Ubuntu's Software Center under a single entry?

I don't know how or don't see the option to have 32-bit and a 64-bit version of my application under the same entry in the Ubuntu's Software Center, and .deb packages cannot contain multiple ...
0
votes
0answers
81 views

graphical presentation of codes

Is there any tools which understand programming languages in Ubuntu and make a graphical shapes or diagram of the code. I think it is better to describe my case I have a C++ code with more than 10 ...
15
votes
4answers
5k views

How to create Unity indicators?

I'm interested in Unity indicators, and wonder if there is any tutorial about how to program them. I can use the sources of the existing ones as last resort, but I'd prefer a more friendly approach ...