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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4
votes
1answer
285 views

Can't Run Ubuntu SDK Apps in Emulator

Ubuntu 14.04.1Qt Creator 3.1.1Ubuntu Touch: Image version 189 & 179 I recently upgraded from 12.04 to 14.04 LTS (with Ubuntu SDK installed, and I did re-enable the ubuntu-sdk repository) and ...
4
votes
1answer
58 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 ...
3
votes
1answer
250 views

Qt creator does not work correctly after installing ubuntu sdk

I installed qt-sdk before installing ubuntu-sdk on ubuntu 12.04. When the Develop, Examples, or Tutorials link on the welcome page is clicked it creates inactive windows and cannot close it normally. ...
3
votes
1answer
511 views

How to get QML syntax highlighting in gedit?

QML files opened with gedit don't have syntax highlighting. Is there a package providing a gtksourceview lang.spec file for QML? If not, has anyone written a lang.spec than can be installed locally?
3
votes
1answer
178 views

How to collapse and expand a ListItem.Standard?

For the app I am developing I would like to have a list with sections that I can collapse or expand. The item in the sections can be clicked and open a DefaultSheet. So, for example in the "Ubuntu UI ...
3
votes
1answer
231 views

How to create and submit package for Qt application

I have an application that I developed in Qt and Ubuntu. Its primary target is Windows but I prefer working in Ubuntu for all sorts of obvious reasons, so I rebuild it using Qt under XP and create an ...
2
votes
1answer
122 views

Ubuntu Touch App with Simple UI (QMake) - how to connect C++ to QML

I've noticed that the Ubuntu SDK now has a template for an 'App with Simple UI (QMake)'. This creates a C++ Ubuntu application project with a sample UI containing a Label and a Button (Needs a 15.04 ...
2
votes
1answer
180 views

Where is the qt-mt (qt multithreaded) library on ubuntu 14.04?

I'm trying to install some software for a Mightex camera and the first step is to run a ./configure file, after getting a lot of messages where it checks for libraries it fails with the following: ...
2
votes
1answer
108 views

Ubuntu SDK, Ubuntu touch app: “Error: Error opening shm.”

I am building an app for Ubuntu Touch. It works well on desktop, but when I try to open it on nexus it starts opening a splash screen but immediately crashes. Here's the logs: t_shm() at ...
2
votes
1answer
270 views

Ubuntu, gtk 3.10.8, not able to visualize a menubar made by Glade

My problem is that I've drawn a UI with Glade, but the menubar doesn't want to be drawn. Here is the xml, just a sample: please try to check out the properties. It is a very simple menubar but I ...
2
votes
1answer
129 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 ...
2
votes
1answer
172 views

Ubuntu Touch how to detect If the application is closed

on ubuntu touch. I run an application in terminal and close the application in the Application scope. The application isn't killed. And no event is caught in QQuickView. How do I detect this close ...
2
votes
1answer
40 views

What does desktop_validates mean?

In a review for my click package, I saw a message containing: desktop_validates What does it mean and how do I fix it?
2
votes
1answer
87 views

In-app paymnt methods

I'm interested in developing for Ubuntu (mostly phones) and I can't seem to find the guidelines on app publishing, will apps only work through the ubuntu software center, or can users download and ...
2
votes
1answer
51 views

Possible to download packaged deb file before final publishing on myapps portal?

first of all sorry if this is a stupid question (or the wrong place to ask said stupid question!), but I've looked all over for an answer and couldn't find one. I've recently submitted my game ...
2
votes
1answer
1k views

How to control gnome-terminal from Python scrypt?

I am developing an application in PyGtk, and would like to launch a gnome-terminal and output commands to it. My user should then be able to modify the command, or maybe ignore using the up arrow ... ...
2
votes
1answer
165 views

Get sensor values Ubuntu Touch

I'm new to Ubuntu applications and I'm trying to make an application for Ubuntu Touch that reads the values from the sensors (Accelerometer, Gyroscope,...) but I don't know where to begin. Which ...
2
votes
1answer
202 views

How to update my Ubuntu Software Center App

Ok so I programmed an app (GibberEng) and submitted it to the app store and it got published and all that. How do I make an update to that app. So that all the 80 people who have downloaded it receive ...
2
votes
1answer
28 views

How to use Ubuntu App Developer's Key system?

Okay so I made a package and submitted it to Ubuntu App Developer. It does not install any files directly, but does depend on Qt framework. The License Key system Ubuntu provides says it will look for ...
2
votes
1answer
763 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 ...
2
votes
1answer
69 views

Will Ubuntu get an asset set to allow Qt applications using GTK style buttons?

Given the recent movement towards Qt as a primary development platform for Ubuntu and the underlying Gnome standard application set: Are there plans to have GTK style buttons available in a simple ...
2
votes
1answer
570 views

(QML) Scroll multiple listviews

Is possible to scroll multiple Listviews together in qml?? this was my attempt: Flickable { id: scoreflick anchors.top: namesrow.bottom anchors.left: ...
2
votes
1answer
511 views

Ubuntu 12.10 - set alternating row colors in gtk3 TreeView

Ubuntu used to have alternating row colors for gtk TreeView widgets. Some applications still do, like Banshee. Alternating row colors would really help my application (written in python 2.7, and using ...
2
votes
1answer
133 views

Access native functions in ubuntu phone

I'm looking at app development for ubuntu phone and it really looks great! But is it possible to access the native functionality of the phone like make a phone call or save a file? The API ...
2
votes
1answer
73 views

Packaging commercial application

I'm developing a project tracking application that I intend to release not far in the future as a commercial (for purchase) app in the software center. I'm just trying to figure out how to best ...
2
votes
1answer
177 views

How to add in-app advertising?

I'd like to code something cool for the ubuntu software center. I'll release my app for free, but I'd like to add some in-app advertising. Is it possible ? how can I do that ? is it hard ? Thanks to ...
2
votes
1answer
178 views

Make Web Pages act like Unity Apps

Is thee a way to make web pages act like apps? What I want to do is to split many Chromium pinned tabs into apps. So, for example, I have 2 gmail accounts, 2 tabs in Chromium, and I want separate ...
2
votes
1answer
177 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 ...
1
vote
1answer
37 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 ...
1
vote
1answer
22 views

How to identify programically in QML app, where is located my sqlite database file

I have QML application which use as well C++ . From C++ I need to connect to DB ( sqlite ) . For this I need to know the exact name and location of the database file . How to identify it ? Or how to ...
1
vote
1answer
70 views

AppArmor denial when trying to open file using content hub

When trying to open a file using content hub using C++ I get these errors: Opening with peer com.ubuntu.music_music_2.1.857 Sdk-Launcher> Application was resumed Sdk-Launcher> There has been a ...
1
vote
1answer
28 views

Installing development libraries on 14.04

I am trying to build some application for both amd64 and i386 architectures. Host architecture is amd64. So i compile and link with -m32. Compilation is done ok but linker cannot find libraries. ...
1
vote
1answer
103 views

Can't run QML app with C++ plugin (cmake) in emulator

I am using Ubuntu 15.04. I created a project QML app with C++ plugin (cmake), and then I want to start it. In desktop it's running fine. When I tried to start it in emulator I got: Framework ...
1
vote
1answer
120 views

Compiling and running camera-app with Ubuntu SDK

Got camera-app, revno: 542. Host - 14.04, Ubuntu SDK. Target Desktop getting runtime qml error when trying to run the 'camera' run configuration: ...
1
vote
1answer
110 views

Ubuntu Touch QML API : PageHeadStyle

I'm looking for some help to use PageHeadStyle components which is available in Ubuntu SDK. If somebody has example, I will be grateful. Thanks.
1
vote
1answer
72 views

Use the design function of Qt Creator when developing Ubuntu apps

I would like to start developing Ubuntu apps with Qt Creator and I have a few queries when making a simple qml qt app. Firstly, is it normal qml and javascript? Can I use all normal qml and ...
1
vote
1answer
365 views

Ubuntu touch. adb devices is not recognizing nexus 4

I am using ubuntu touch in my mobile nexus 4. adb was working perfectly and also adb helped to test some of apps I have created in my mobile. Now I am finding that adb is not working at all (ex: adb ...
1
vote
1answer
91 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
278 views

QML PageStack , communication between Pages - return values

I defined PageStack only on master page (a.qml) : import QtQuick 2.0 import Ubuntu.Components 0.1 MainView { width: units.gu(48) height: units.gu(60) PageStack { id: pageStack ...
1
vote
1answer
133 views

Internationalization of QML application using i18n

Does someone know all the steps needed to have the apps translated in multiple languages? I am using in my QML files i18n.tr() , and such words I need to translate I performed below steps ( ...
1
vote
1answer
598 views

Get/emulate touch event in Cordova app

I have a HTML5 app, wich I want to port to Ubuntu as a Cordova app with Ubuntu SDK. It use touch events on a canvas and works fine in any browser, but no with Cordova. I bind the events like this: ...
1
vote
1answer
232 views

Quickly produces an error when installing

I ported an application over to Quickly, replacing all the files as necessary. When I say quickly run the application runs without flaw. However, the problem occurs when I try to package/install it. ...
1
vote
1answer
47 views

is there code example or api reference for “convergence”?

I cannot find any code example for writing apps for “convergence”. Does anyone know it where I could find any? Or will anyone give some clue about how to write a convergence app for both phone and ...
1
vote
1answer
296 views

Qt Creator cannot run HTML5 apps on Ubuntu 13.10, is it broken?

When attempting the Ubuntu HTML5 tutorial on the Ubuntu site, I have just created the template app and am attempting to run it. When I run it, I get this error: Starting ubuntu-html5-app-launcher ...
1
vote
1answer
272 views

Ubuntu SDK installation error on Ubuntu 13.10

I followed the instructions from http://developer.ubuntu.com/apps/create/get-the-sdk/. But the installation failed with the following message at the end: The following packages have unmet ...
1
vote
1answer
90 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
45 views

Why isn't python featured?

The site says Python is the preferred language for new Ubuntu applications. Yet the sdk overview page features QML and HTML5 and presents apis only in those two languages. Where is the python sdk ...
1
vote
1answer
56 views

gsettings-qt bug?

I have a problem using the gsettings-qt binding: https://launchpad.net/gsettings-qt Now I try to use it in my .qml import QtQuick 2.1 import QtQuick.Controls 1.1 import GSettings 1.0 import ...
1
vote
1answer
356 views

Where is the gtk# widget for windows forms in mono?

Ok, I downloaded mono to program in c#. The installation worked fine and I have mono up and running. The problem is, I can't find the toolbox that contains stuff like: ---- Common controls ...
1
vote
1answer
702 views

Extend existing QML Component from C++ plugin

First of all, I would like to say that I'm not very experienced in Qt, but I would like to include a new feature in existing QML WebView component to set a list of header values, included User Agent ...