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
3k views

Can I run the Ubuntu SDK in Windows?

From where can I download Ubuntu SDK for mobile application development? I can not find any links.
3
votes
5answers
543 views

Problem with Ubuntu Phone SDK demo app

I have installed the Ubuntu phone SDK on a VirtualBox VM running Ubuntu Precise (12.04.2 LTS) as the guest OS. The "guest extensions" have been installed. The guest OS kernel is 32 bit 3.2.0-37 ...
5
votes
1answer
445 views

Can commercial applications use Gsettings?

According to specified technical requirements, a commercial application must be self‑contained in a single directory (which I agree is a good requirement), and use ~/.config/<app-name> for its ...
2
votes
0answers
279 views

What's the architecture of Ubuntu Phone?

Will Ubuntu Phone be more an Android or more a "normal" Linux? Or in other Words: will it be possible to have e.g. wxWidgets/wxWidgets-applications on it?
9
votes
5answers
3k 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 ...
1
vote
1answer
297 views

Issues installing qt5 & sdk for phone app

I followed the instructions for downloading the qt5, but it failed. I downloaded qt4 from package manager in 12.10. I then tried to install sdk through terminal, but to no avail did it bring it up it ...
0
votes
2answers
144 views

Are there any tutorials available which would help me learn the concepts of Mobile Development? [closed]

Right now I am working on Asp & C#.net. I am also interested in Mobile App Development and want to start with Ubuntu Mobile development using C#.Net. Are there any tutorials available which would ...
1
vote
0answers
190 views

jQuery in Doxygen generated API documentation

I am using Doxygen on Ubuntu 12.10 to generate API documentation for a C++ library and demon. This works fine with one issue, I can not seem to resolve. Doxygen uses jQuery in the generated files to ...
3
votes
1answer
4k views

Cannot overwrite file /home/baadshah/.config/QtProject/qtcreator/toolchains.xml: Permission denied

Cannot overwrite file /home/baadshah/.config/QtProject/qtcreator/qtversion.xml: Permission denied Cannot overwrite file /home/baadshah/.config/QtProject/qtcreator/toolchains.xml: Permission denied ...
1
vote
0answers
55 views

QML Module not found [duplicate]

I am getting QML module not found on this line import Ubuntu.Components 0.1. I have installed the ubuntu-sdk. I have QT creator 2.6.1 installed. Please kindly help or direct me to where I can get ...
-2
votes
2answers
70 views

How and where can I monetise my application?

I am currently publishing Android apps on Google Play and the Amazon Appstore. Are you going to provide a similiar place to market apps? If so, is there some kind of Digital Rights Management ...
1
vote
1answer
101 views

How do I combine two toolbar buttons into one?

In my application toolbar, I have two toolbar buttons Travel Planner and Departures as shown below, I need to change it this, As you can see in the 2nd image, it seems that 1 button has 3 ...
2
votes
0answers
71 views

How to make Gtk spinbutton symbolic in 12.04 in only a specific application?

I am currently developing an application for Ubuntu 12.04 and Ubuntu 12.10 systems. My application is completely monochromatic except for the spinbuttons as seen in the screenshot below. This issue ...
4
votes
2answers
1k 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.
2
votes
1answer
311 views

Further information on the Ubuntu Phone SDK [closed]

We saw many threads on the Ubuntu User Interface Toolkit that will be available for the Ubuntu Phone application development (see this thread for example). But there seems to be no information about ...
8
votes
1answer
468 views

What is the equivalent to Android Intent and BroadcastReceiver?

I've played with and written code for Android and I learned the concept of Intents and BroadcastReceivers in Android. They are used to call Apps for specific purposes like making a call or playing ...
2
votes
1answer
519 views

Highlighting Gtk Entry fields on invalid input by user

I am creating a program using Python and Gtk. I want to guide the user by pointing out mistakes if any. I have attached a sample glade interface below. Here the user is supposed to enter a valid ...
7
votes
1answer
1k views

How can I install a Gsettings Schema without root privileges?

The typical workflow to install a Gsettings Schema is this: Create a schema, with the extension .gschema.xml, with contents like this: <?xml version="1.0" encoding="UTF-8"?> ...
1
vote
2answers
260 views

Does a company writing C++ apps have to share its source code if it calls unmodified QT or Ubuntu libraries?

What is the relationship between Ubuntu and QT and Canonical? The coming Ubuntu phone looks interesting. Ubuntu seems to be interwoven with QT. If my company wants to write commercial C++ apps ...
15
votes
2answers
777 views

Testing Ubuntu mobile applications

I'm currently reading a lot about the new Ubuntu mobile (phone) OS, and now I'm wondering if there is the possibility to test applications. I know that QtCreator is the recommended IDE and an emulator ...
2
votes
1answer
69 views

Uploading quickly packages to Launchpad

I created an application using Quickly and packaged it using the command quickly package. But after I uploaded it to my PPA, I got a message from Launchpad saying: Rejected: Source/binary (i.e. ...
2
votes
1answer
367 views

Screen dependent image resolution

I'm currently reading some articles about QML, QtQuick and the soon coming Ubuntu SDK and I'm wondering if there are any mechanism that allow a device resolution dependent selection of image ...
2
votes
0answers
127 views

unable to install the Ubuntu Toolkit

I wanted to install the Ubuntu tool kit to get started programming, but when the install was nearly on its end it threw up the following error: The following packages have unmet dependencies: ...
1
vote
0answers
286 views

Can't compile a GTK+ program, errors in GTK-files

for years ago I downloaded GTK+-dev. Now I would create a programm with GTK+. Simply startet with the example on http://developer.gnome.org/gtk3/stable/gtk-getting-started.html, I get lots of ...
4
votes
2answers
90 views

Are charges made on application updates?

I'm planning to develop an open source application and am also considering to set a non-zero price for it. If an user purchases the app, will he be charged again when updates are released?
6
votes
3answers
2k views

Problems with QML Tool Kit Installation: “unmet dependencies: qt-components-ubuntu: … ”

I am following the directions on the page for Ubuntu App Development: http://developer.ubuntu.com/get-started/gomobile/ Command 1: sudo add-apt-repository ppa:canonical-qt5-edgers/qt5-beta1 ...
1
vote
1answer
123 views

“quickly tutorial ubuntu-application” not working

I installed Quickly with sudo apt-get install quickly. If I want to read the tutorial with quickly tutorial ubuntu-application I get the following error message: FEHLER: No tutorial command found. ...
0
votes
0answers
23 views

Issues installing QML toolkit preview [duplicate]

Possible Duplicate: How do I resolve unmet dependencies? I was following the instructions from http://developer.ubuntu.com/get-started/gomobile/ to install the QML toolkit preview, but I ...
-1
votes
1answer
124 views

Is there any plan to merge `qt-components-ubuntu` into official QT/QML?

Is there any plan to merge qt-components-ubuntu into official QT/QML? Is it ongoing already? It's quite sad that ubuntu forked qt. I want to use qml to build a desktop app, and widgets introduced in ...
4
votes
1answer
546 views

Is GTK+ supported on Ubuntu for phones

I wondered if GTK UI library would be supported on Ubuntu phone and tablet ? I know the SDK for mobile encourage QML/QT but will it be still possible to develop apps for phones, and especially ...
3
votes
1answer
171 views

Need more information about API for 'Ubuntu for Phones' [duplicate]

Possible Duplicate: How do I start developing applications for Ubuntu mobile? I would like to develop a app on Ubuntu for Phones. I have already developed apps on iPhone and Android. Could ...
1
vote
1answer
114 views

Fetcher in Currency Converter Ubuntu app

I saw in the Ubuntu phone app tutorial that the fetcher in the currency converter is from ecb's web page. Do you know if that data can be legally used in a real app or web page? I suspect that data ...
8
votes
3answers
591 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 ...
2
votes
0answers
81 views

Positon of exit button [duplicate]

Possible Duplicate: Window Controls moved to right hand side How can I move all the window controls to the right? How can I set up the exit button on aplications to be on the right side ...
3
votes
0answers
315 views

Kinect + Webcam - Bandwidth issue

I am making an application on Ubuntu 12.04 and ROS Fuerte (Robot Operating System) using the Microsoft Kinect sensor and a logitech webcam. Both work perfectly fine independently. For information I ...
17
votes
2answers
228 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 ...
0
votes
1answer
619 views

Ubuntu.Components QML Module

I installed QTCreator and Ubuntu SDK as shown here. When trying to run the code sample provided here, QTCreator tells me it can't find the Ubuntu.Components QML Module. Notes: The build-logs says: ...
2
votes
2answers
336 views

How to add licensing to Ubuntu Application?

I am developing a commercial app for Ubuntu Software Center. Since it is commercial, I do not want users can simply copy/download the app from somewhere else and put it into PCs without buying it ...
2
votes
1answer
123 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 ...
1
vote
1answer
114 views

Is development of Ubuntu phone on other platforms possible?

When I first read about Ubuntu phone I became very excited about it. However, I am disappointed to see that if I want to get started I should download and install Ubuntu first. While I can totally ...
3
votes
0answers
362 views

How do I get high resolution icons in Unity for my application without a .desktop file?

I am trying to fix a problem I found with a Java application. It has a too low res icon. After reading the source of it I modified it to have a bigger icon. SWT uses the gtk_window_set_icon() function ...
-3
votes
1answer
67 views

Looking for developers to help me turn ideas into products [closed]

Can anyone suggest how I might go about looking for young developers who can help me turn linux-based ideas into products (initially unpaid)? I am a Business Analyst not a coder and have a couple of ...
1
vote
0answers
269 views

How can I integrate Mega into Ubuntu? [duplicate]

Possible Duplicate: Is there a Ubuntu version of mega [mega.co.nz] client? Any plugins I can use that might help until Mega makes a client for Ubuntu? I'm running 12.04 so the ...
1
vote
1answer
197 views

Dynamically change the application icon

The icon used for the app is in the .desktop file but is it possible to change this dynamically? You can change the count but not the icon. Is there an API for doing this like OS X?
5
votes
2answers
3k views

What is the Step by Step Guide to have Qt (QML) properly setted in Ubuntu 12.04 to start developping with QML?

Before I start, here is my setup: Ubuntu 12.04.1 Default install of Qtcreator from Software Center. For the rest, I' m doing all the thing from qtcreator I wanted to try some examples from QT ...
1
vote
1answer
385 views

How can I get a list of all apps in the Ubuntu Software Center?

I´am playing with Software Center's API, after seeing this post on askubuntu. My question is: how can I get a list of all Ubuntu Software Center's apps? From the other question I get this endpoint ...
0
votes
0answers
36 views

How to contribute Ubuntu mobile OS? [duplicate]

Possible Duplicate: How to start contributing to Ubuntu development? I am Sad Al Abdullah from Bangladesh. I complete my graduation from BUET (Bangladesh University of Technology and ...
0
votes
1answer
89 views

is there other program to make ubuntu apps besides quickly?

And in some other programming language maybe?i was wondering if i can create an app in some other program not quickly and post in in the ubuntu store?
2
votes
1answer
107 views

What's the best approach in migrating currently C# and VB.net (Windows) developed applications?

I would like to start to "translate" my Windows applications to Ubuntu users. These are mainly CRMs or CRM related programs written in VB.net and C#. What would be the best language and IDE for these ...
13
votes
1answer
556 views

How will the Ubuntu Phone SDK impact desktop development [closed]

If I was to develop an application for Ubuntu after the Ubuntu Phone announcement, I would be concerned with several issues. I know that these things will not change immediately, but I'm thinking ...