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

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 ... ...
8
votes
1answer
269 views

Why the Ubuntu App Developer website is not showing content about development for desktop?

Looks like they removed every content that is not related with development for desktop. For example when you click in "Get Started" tab there is only information about the Ubuntu Touch and its SDK, ...
1
vote
1answer
411 views

importing C++/Qt module in QML

I have made a module to execute a shell script from within QML. The problem that I'm having is that I don't know how to import the module into my QML script. This is for a UT application BTW.
4
votes
2answers
164 views

Do i need to know C++ to develop ubuntu app?

I'm a java developer. I dont know much about C++. should i learn C++ to develop ubuntu app? or can develop app without c++?
1
vote
1answer
343 views

What development tools and languages are used for ubuntu mobile app development? [duplicate]

I am new here, I am working with iOS development, now I also want to learn to develop Ubuntu apps. What are the standard requirement to develop Ubuntu mobile apps? Can I develop Ubuntu apps in ...
1
vote
2answers
144 views

How would I make a simple indicator program to record timestamps?

I would like to make a button to sit up next to my sound/wireless/etc indicators which, when toggled, will change color and write the system time with the word "begin" to a file, then, when toggled ...
1
vote
1answer
94 views

Which version of Python is used on Quickly?

I'd like to know the Python version used on Quickly. I could not find the version on the Wiki.
1
vote
1answer
100 views

Opening a Quickly dialog using a button

I have created a window using quickly add dialog. But I can't figure out how to simply open the dialog from a button. I have already set up a button in my main window and set up the code for it. This ...
3
votes
2answers
72 views

developer.ubuntu.com - only for mobile apps now?

I tried to look there for some guides for desktop application development, as I had done before, but found none! Is it only a temporary problem because of Ubuntu going mobile, or I should look ...
2
votes
0answers
602 views

How can I set up a build target in Qt Creator to compile for 32 bit on 64 bit Ubuntu?

I am running 64 bit (x86) Ubuntu and would like to be able to build Qt projects for a target architecture of 32 bit (x86). Qt Creator allows the configuration of multiple 'build kits' for compilation ...
1
vote
1answer
599 views

Can software for Ubuntu Desktop work on Ubuntu touch unmodified?

I have software that works on Ubuntu 12.10 Desktop. Would it run also on Ubuntu Touch? Specifically, I'm trying to use OpenCFU on a Ubuntu tablet. I just want to know if it would work; whether it ...
1
vote
1answer
2k views

Which scopes are available in the default Ubuntu installation?

After I've installed Ubuntu, which scopes are readily available to return results from the Dash?
3
votes
1answer
782 views

How do I debug my Unity Scope?

I've started writing a scope for the Unity Dash, but it seems not to return results. I'd like to find out why: how can I debug my scope?
6
votes
1answer
2k views

What programming languages are scopes written in?

I'd like to get started writing a Scope for Ubuntu. What programming languages are available and what should I choose?
3
votes
1answer
1k views

What opportunities do scopes offer to mobile operators?

Mobile phone operators are often concerned with providing a means to provide differentiation in the OS they ship, while not increasing the maintenance cost due to potential fragmentation. This might ...
4
votes
1answer
592 views

Is any personal or sensitive data collected as part of the Smart Scopes Server?

The Smart Scopes technology implies submitting search queries online for them to be processed by the Smart Scopes Server from Canonical. Is any personal or sensitive data collected as part of the ...
7
votes
1answer
2k views

What are Smart Scopes?

I've heard Ubuntu 13.10 will ship Smart Scopes technology. What are smart scopes?
1
vote
1answer
52 views

Issue With App In The Software Center

Hey I got my app published in the software center, (Yay!) but now I have a different. problem. When you go to download my app it says its free but but the button says buy where it normally says ...
0
votes
1answer
185 views

How do I use qtmultimedia in qml? [duplicate]

The link here says that I should use qtmultimedia 5.0. Is there a tutorial or example that I can use that shows how to do it?
0
votes
1answer
128 views

Ubuntu/Qt Application

In Qt Creator: Is the 'Qt GUI Application' completely different from 'Ubuntu touch GUI Application'? Does Ubuntu App Developer community accept 'Qt GUI Application' developed on Ubuntu platform?
7
votes
0answers
317 views

How can I run a command from a qml script? [duplicate]

I'm working on an Ubuntu Touch app that needs to modify iptables and do various other things that requires interaction with the command line. I found this and I understand that it must be done with a ...
4
votes
1answer
110 views

Large amount of scrollable text in Ubuntu touch

Is there a way to make a label scrollable in ubuntu touch sdk. If not what is another way to have a large amount of uneditable text that can scroll.
2
votes
2answers
331 views

Is there a way to gain superuser access from a Qt app

I'm designing an app that needs to configure iptables with root. Is there already some sort of framework that can be used to gain superuser access with an app or will i have to design my own?
2
votes
1answer
3k views

get text from a Website in javascript/qml

I have this Website I would like to copy the text from. I don't know much but it looks like it uses php (here is the site: http://feed.evangelizo.org/reader.php) So I would like to write a fuction ...
3
votes
1answer
77 views

Can I use a .settings file for my Ubuntu Touch application?

Can I use a .settings file for my Ubuntu Touch application? Or isn't that allowed? If yes, where should I store it? I'm developing an app that creates files for usage in my app. Should I use XML for ...
2
votes
1answer
70 views

Can I use libraries for my Ubuntu Touch app?

I have created an Ubuntu Touch app that uses .a libraries that I have written myself. Can I use those in Ubuntu Touch? If yes, where do I store them and how can I access them?
3
votes
1answer
414 views

Buttons in ubuntu touch toolbar

What is the code to have a toolbar with buttons when programing in QML with the Ubuntu Components Module. I want to make it so that when I swipe a finger from the bottom of the screen the toolbar ...
0
votes
1answer
1k views

Where to find Qt 5 downloaded pack in my Ubuntu 13.04 (Raring Ringtail)

I'm trying to locate the Qt 5 package in my Ubuntu 13.04 OS (HP Compaq 6910) following the instructions given in Get started where it says: Alternatively, for those using Ubuntu 13.04 or a ...
-2
votes
1answer
411 views

Do you could use python in ubuntu phone? [closed]

They will be able to create applications for the Ubuntu Phone with python language
2
votes
1answer
2k views

How to make a centred, wrapped and padded container of elements in QML?

I am trying to achieve an element which is vertically and horizontally centered on the page, has padded margins, and elements inside it are equally spaced and centered & wrapped (if needed). So in ...
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 ...
0
votes
0answers
18 views

Changing text on a popover [duplicate]

I am trying with no success to show a popover with a different text than the one it was declared initially. Here is a minimal example: what I would need is to set the text property of the message ...
0
votes
1answer
143 views

How to use ActionSelectionPopover QML Component

I'm trying to use the ActionSelectionPopover located here, I can't find any examples on how to actually execute/show it, from looking at the demo QML files this is what I have come up with: /* Popup ...
6
votes
1answer
251 views

How do I get an UbuntuShape to transition (fade) between different images?

I have some QML code using the UI toolkit. When you click on the image, it toggles between two different logos. I've attempted to make the transition use an animation but it doesn't work; after the ...
0
votes
1answer
2k views

Where can a beginner learn ubuntu game development?

Hi everyone I haven't had Ubuntu for long but I feel it has more potential for game development than Windows 8(DON'T USE IT, IT BLOWS!). On Windows I used XNA, but I wanted to have a development ...
2
votes
2answers
208 views

How to detect whether an app is running on a mobile device or on the desktop

I'm using the Ubuntu SDK to develop a QML app that runs both on the desktop and on mobile devices. Depending on where it's running on the desktop or on a device, certain behaviours should be ...
4
votes
2answers
598 views

How to create a dialog and set title and text dynamically

Looking at the Dialog component example in the Ubuntu SDK documentation, it looks as if dialogs are intended to be defined as static components with fixed title and text. Or at least I cannot figure ...
0
votes
1answer
38 views

is there any way to run the application on internet? [closed]

can you provide any links or guideline steps to execute the application (for example to run currency converter program) on internet directly without installation of any software. Like using online ...
5
votes
2answers
616 views

Are Ubuntu Phone apps compatible across different devices? And if yes, how?

I know that Android apps are developed in Java because running all applications in a virtual machine grants less compatibility issues. IOS instead uses objective-C because it is developed to run just ...
0
votes
1answer
35 views

Ubuntu provides Certificates?

I want to know if Ubuntu provides certificates to commercial applications? Example: "Appname Certified by Ubuntu"
0
votes
0answers
20 views

Whats a good way to learn how to make apps? [duplicate]

im fairly new to the Ubuntu distro, i was just wondering how to make apps. I would really like to expand my knowledge in this area. Any info will help, thank you!
12
votes
1answer
328 views

How to take ownership over an existing Ubuntu Software Center app?

My name is Michael Tunnell and I am one of the project members of the download manager, uGet. uGet has been out of date in Ubuntu for over a YEAR and we are trying to fix that. (You can verify my ...
3
votes
1answer
158 views

Why the $2.99 minimum price for apps

According to http://developer.ubuntu.com/publish/ Apps can only be published at a $2.99 minimum price, which seems to include the ubuntu touch apps. 99% of the apps I have purchased on android are ...
4
votes
1answer
462 views

Does Ubuntu Phone APIs include Qt Mobility?

I'm currently developping an application for Meego/Harmattan. This app uses Qt Mobility API, and can easily be ported to SailfishOS. I would like to know if this API is also supported in Ubuntu Phone ...
1
vote
1answer
231 views

Will Ubuntu QML apps be cross-platform?

I am creating a voice-chat app for Ubuntu using the Ubuntu SDK; will it work on windows and mac in the future? If not, I will be switching from using the SDK to plain Qt or GTK.
7
votes
2answers
3k views

How to pass the image preview from the QML Camera component to a C++ plugin

I'm writing an Ubuntu Touch QML app that captures and processes images from a camera device. The processing is done by a C++ plugin to which I'm passing the URL of the image. I can successfully save ...
0
votes
1answer
405 views

Can I use the Ubuntu SDK Preview in Linux Mint?

Can I use Linux Mint to develop applications for Ubuntu Touch with the Ubuntu SDK preview?
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 ...
3
votes
1answer
132 views

How can I center an ActivityIndicator within the screen?

How can I center an ActivityIndicator within the screen? My current code is: Column { Row { ActivityIndicator { anchors.leftMargin: units.gu(10) running: true ...
3
votes
1answer
2k views

How to emit onDropped in QML drag n drop example?

In the qml documentation there is a drag'n'drop example: import QtQuick 2.0 Item { width: 200; height: 200 DropArea { x: 75; y: 75 width: 50; height: 50 onDropped: ...