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.

learn more… | top users | synonyms

4
votes
1answer
507 views

Can I use 12.04 to build Ubuntu Phone apps?

Can I use 12.04 to build Ubuntu Phone apps? The example indicates 12.10.
1
vote
1answer
730 views

Can I use native the Qt5 C++ library to create applications for the phone?

Can I use native Qt5 C++ library to create for Ubuntu phone. Is there any guide or wiki for it. How can I test my app on real device(Galaxy Nexus). Where I can get recommendations for Ubuntu App ...
1
vote
1answer
510 views

Where can I find a Simple Hello World example for Ubuntu SDK (QT)?

I've been trying to get a simple window with button. And i have no idea on how to "bind" a button from the QML thing to a C/C++ function for example. I followed the example from developer.ubuntu.com ...
6
votes
2answers
566 views

Create a Gtk Window insensitive to Show Desktop and Won't show in Launcher

I want to make a Gtk.Window which is pinned to the Desktop and acts like a desktop widget. I've found that I can do this by setting self.set_type_hint(Gdk.WindowTypeHint.DESKTOP) which keeps it below ...
2
votes
1answer
1k views

Will developers be able to use ruby or python for apps on ubuntu mobile?

Will we be able to use python, ruby or other languages to develop apps for Ubuntu tablets and phones?
5
votes
2answers
1k views

Is QML the only way to create apps in Ubuntu for tablets?

As I've seen from the tutorials, QML seems the only way to create graphical apps in Ubuntu for tablets. Other languages seem to be only for using OpenGL, not Qt libraries. My question can be ...
4
votes
1answer
622 views

Is it possible to write a Mobile app with a engine written in C?

I am working on a chess engine which is written in C ( ttps://launchpad.net/enpassant) . By the time it is completed, I plan to have different versions for the Desktop and mobile. Now, is it possible ...
2
votes
1answer
649 views

Will location data be available to ubuntu mobile apps?

Is Ubuntu planning to make location data available to mobile applications? If so, can you give any pointers to an API that I could use?
3
votes
1answer
94 views

Does Ubuntu Phone SDK support 12.04? [duplicate]

I'm excited about Ubuntu Phone supporting QML, and i'm wondering if the SDK supports 12.04?
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
548 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
458 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
291 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
145 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
195 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
72 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
319 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
482 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
535 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
267 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
786 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
71 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
375 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
299 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
126 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
125 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
550 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
173 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
119 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
623 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
319 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
235 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
647 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
345 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
373 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 ...