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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1answer
96 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 ...
0
votes
1answer
65 views

publish gambas3 programs

I have been using Gambas3 to write some User interfaces, and Ive really enjoyed the simplicity, and speed at which I can write GUIs with. Now i am ready to publish some software. I tried walking ...
1
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3answers
147 views

Photo selector API for Ubuntu Touch

I searched all over the web, but I can't find anything that could help me. I am looking for an API to implement a photo selector in my Ubuntu Touch application. I need something like a File Chooser ...
12
votes
3answers
2k views

Where to store user settings for an app?

If I want my application to store a few settings, that persist when an application closes, then where should I store them? I'm not talking anything complicated: two booleans and a string (although in ...
1
vote
1answer
205 views

How to use Apache Cordova API in Ubuntu SDK

I created an HTML5 app in Ubuntu-SDK. Therefore I went to New Project->Ubuntu->HTML5 App. The app is already working but now I wanted to use vibration to give the user a feedback to a certain ...
1
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1answer
249 views

QML app with C++ plugin (cmake) subdirectory

I am developing an Ubuntu Phone application "QML app with C++ plugin (cmake)" but I have so many qml files so I want to separate them by functionality ApplicationName CMakeListes.txt .. app ...
15
votes
1answer
298 views

High-level library for Unity Dash?

I've wanted to write a GTK+ version of Unity Dash for some time. I think it could be useful for Xfce, Gnome Flashback, elementaryOS, etc. Before I start doing anything about it, I'd like to know if ...
3
votes
3answers
1k views

Can I develop a 2D game with just QML?

I have a bit of interest in developing for Ubuntu Touch (I have little to no real coding experience also), but my main interest is trying to develop a 2D game. From my understanding, I would either ...
1
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2answers
130 views

is there any app for backup/ restore installed apps in ubuntu?

For some reasons, you will need to do an ubuntu fresh install on the same PC/laptop by re-size partitions, or in other PCs/ laptops. Installation is OK, but it spends a lot of time for installing apps ...
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0answers
23 views

How do I configure the Ubuntu SDK to use a proxy cache?

The Ubuntu SDK sets up emulators for me, which seems to involve a call to click chroot which then runs debootstrap. How do I pass through my proxy server settings through to debootstrap? I want to do ...
1
vote
1answer
319 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: ...
0
votes
1answer
66 views

Ubuntu SDK - Example clocks wont run in emulator

I'm trying to start the example "clocks" from the ubuntu SDK in the phone emulator. After adding the emulated device, booting it and pressing play nothing happens. How can I found out what is going ...
0
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1answer
89 views

File storage location for ubuntu application

In my application I plan to store files locally ( exported files ) and import files which user copy via USB to the disk. Where to locate such application files ? Is there some recomendation ?
0
votes
1answer
129 views

Programming Linux [closed]

I want to make an application in c#, or in c++ or in what ever programming language even in script language as bash. The application will ask for an answer, e.g. 1+1? and the password will be 2 If ...
1
vote
0answers
62 views

Can ubuntu touch scopes access the dbus at any time?

I was thinking of writing a scope for downloading music and video content from its sources, and since there is not yet a UI for the ubuntu download manager daemon, it seems like there is "no" ...
1
vote
1answer
212 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.
2
votes
0answers
109 views

Ubuntu Touch HTML5 How to create a fixed header?

How can one create a fixed header when creating a Ubuntu Touch Application with the HTML5 SDK? The api documentation does not offer any help and I could not find any HTML5 examples that were using a ...
0
votes
1answer
94 views

UbuntuListView ListItem.Expandable example?

I am playing with the Expandable ListItem components: UbuntuListView { id: myList model: 2 delegate: ListItem.Expandable { expandedHeight: units.gu(20) Label { text: "Expand me" } ...
0
votes
1answer
343 views

Can I use Java to develop gui for ubuntu

I'm developing a GUI for Ubuntu using Quickly tool. I'm not familiar with python so can I use Java/C++/C# programming languages?
1
vote
0answers
56 views

Ubuntu touch HTML 5 how to create complex headers?

I am trying to build a small html5 app for Ubuntu touch. In general it is rather difficult to handle the html5 code. The design guide gives a lot of suggestions how to build an app, but neither the ...
0
votes
2answers
336 views

How to run two 'python manage.py runserver' commands of two different folder in a single terminal

I have two different python project placed in different folder (project 1 in pydir1 directory, project 2 in pydir2 directory). Every time, I need to open two new terminal and run the python manage.py ...
0
votes
1answer
403 views

How to use Ubuntu QML Dialog or other Popup without any buttons?

I am trying to make a modal popup where all there is is a progress bar, and when the progress bar is full it automatically closes, Dialog and the other popups don't seem to even show unless you set ...
0
votes
2answers
218 views

Ubuntu touch how to get HTML 5 app template running?

I have successfully installed the ubuntu sdk on my Ubuntu 14.04LTS, I also have installed a desktop Kit and an UbuntuSDK for i386. Afterwards I created a new html5 app. The template given works with ...
0
votes
1answer
204 views

Dynamic object creation im QML

I am new to QML and would like to understand how object creation works when splitting code over different files (as it feels like a good code practice). I know I can call property of an item within ...
0
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1answer
53 views

It it possible to use apps for mobile? [duplicate]

It is said that mobile OS Android is originated from Linux. It the statement true? And Can I use apps built for Android OS in Ubuntu? Thank you. HELLOVENUS Fantagio.
0
votes
1answer
436 views

How to install uber APP in ubunto?

I want to install UBER APP in my laptop (OS is Ubuntu). I checked that: Uber is available for download on: iPhone (iOS 7 or newer) Android (Jelly Bean or newer) BlackBerry (BB OS 7 only) Windows ...
0
votes
1answer
73 views

How can I publish my deb files to custom url?

I've seen that some software can be deployed a "deb url" like deb http://dl.google.com/linux/chrome/deb/ stable main The "deb url" could be added via: sudo add-apt-repository "deb ...
-1
votes
1answer
63 views

Problem With the Digital Signature Very Important

We are using Ubuntu 10.04 and we have our internet portal that purpose we require digital certificate for authentication. We are using Firefox 24.0. The certificate shows in Firefox's preferences but ...
2
votes
1answer
67 views

Is it possible to specify default images for scopes?

Is it possible to set a default image for scopes? I've created a couple of scopes for Ubuntu Touch that are basically RSS scopes. But the sites they're reading from don't seem to always provide a ...
7
votes
2answers
282 views

What exactly is an “Ubuntu App”, as made with the Ubuntu SDK?

The Ubuntu SDK appears to be only for creating Ubuntu Apps. What exactly is an "Ubuntu App"? The website is very detailed, but I can't see any description of what is meant by an Ubuntu App. I ...
3
votes
2answers
954 views

How to let an icon in the launcher wiggle?

Trying to let my python application inform the user by wiggling or shaking its icon in the launcher, I found: Wiggling seems to be the "urgent animation": How can I change the wiggle time of ...
2
votes
2answers
107 views

How does one get the ambient light conditions in Ubuntu Touch?

I am planning to make an app which would switch between Light and Dark theme based on the ambient light conditions. So if it was a dark room, then the app would switch to a dark theme to reduce the ...
1
vote
2answers
208 views

Using Online Accounts to authenticate against my server

In my Ubuntu QML app I'm trying to use online accounts in order to authenticate against my server. I'm a little confused as to how I should go about doing this. Ultimately I want the user to be able ...
1
vote
1answer
226 views

How to play music when app is not the active app?

I'm working on a music app for Ubuntu Touch I don't know how to keep playing music when my app is in the background or the screen is turned off. Apparently, media-hub is a platform service introduced ...
1
vote
2answers
177 views

Ubuntu.Components for 14.04

I read somewhere that to develop apps using Ubuntu.Components, 14.10 is needed. Is there no workaround to make it work on 14.04? Or is there any older version of Ubuntu.Components for 14.04? If so, ...
0
votes
1answer
575 views

Qt Installation requirements: unmet dependencies [duplicate]

im a linux beginner and used google & Co. by installing the requirements ( http://doc.qt.io/qt-5/linux.html ) for Qt: sudo apt-get install build-essential libgl1-mesa-dev i get the following ...
6
votes
2answers
9k views

How to programmatically get a list of wireless SSIDs in range from NetworkManager

I'm writing a small little app that I want to submit to the Ubuntu App Review board, and one thing I'd like to do is for it to show the names of the detected Wireless SSIDs in a combo box. It's a PyGI ...
-2
votes
1answer
472 views

Software center crashes on Ubuntu 14.04

After I run the software center in terminal it says: bizara@BlackHole2:~$ software-center 2015-02-24 19:27:53,480 - softwarecenter.ui.gtk3.app - INFO - setting up proxy 'None' 2015-02-24 19:27:54,828 ...
0
votes
1answer
49 views

Missing localization of Ubuntu touch for Slovak language

I would like to translate the Ubuntu touch system into Slovak. How to do this ? Where to start ?
10
votes
2answers
2k views

Will Ubuntu Phone support Java?

I'm a Java developer and I was so excited when I heard that Ubuntu is going mobile... But will it support a Java Runtime Environment like Ubuntu Desktop and Windows 8 Pro? A lot of enterprise ...
4
votes
1answer
97 views

How to cause an Ubuntu Touch device to vibrate?

I'm toying with my first Ubuntu Touch app and am trying to enable the phone's internal, umm, "vibrator." How can I go about doing this? Any pointers on how to do this in either C++, JavaScript, or ...
14
votes
7answers
2k views

Wanting to start development for Ubuntu (and most Linux distributions in general), which is suitable? Python or Vala? [closed]

I'm a computer science graduate, and learned languages like C, C++, C# and Java. Though I have more experience with Java. I want to develop for Linux and I'd prefer to develop for GNOME, I'm confused ...
6
votes
1answer
2k views

How to use accelerators in Gtk?

I need to make an application in Vala, using Gtk, that supports keyboard accelerators that can be changed by the user. First, I add an entry to the global Gtk.AccelMap and then set the accel_path ...
0
votes
1answer
160 views

I Develop a project on “monodevelop” but stuck in debugging it from .exe file. What should I do?

I have developed a project using monodevelop and saved it. The monodevelop as usual created a .exe file of it for me, But problem with the project is that,"It works perfect, When I start debugging it ...
0
votes
1answer
94 views

Installation failed for API

I'm developing an app for sending OSC messages working through the outlet port 4444 and I am using a C API call Liblo. Project page: http://liblo.sourceforge.net Normal install it by running the ...
7
votes
2answers
9k views

Can I sell my PyQt4-app without having a PyQt license?

I would like to sell a Python application that uses PyQt4. The commercial licenses for Qt PyQt cost thousands of Euros together. Do I need to buy a commercial license? Consider this from a ...
0
votes
2answers
175 views

Acrobat XI Pro like pdf reader

How do i install a pdf reader like acrobat XI pro which lets me highlight text, has text recognition and lets me combine and convert pdf from and to other formats?
1
vote
1answer
139 views

copy-mangar having auto-poweroff after completing copying/moving operations?

Many Of my friends don't have Internet connection so often i download their stuffs. so sometime the files are too large 20~25 GB's . Which takes hours to copy :) For my convenient is there any way ...
2
votes
2answers
5k 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
1answer
37 views

How to open an item in a MainView so that it fills the whole window?

I'm writing an application consisting of several pages. One page is a bit special, because it should fill up the whole screen. However, I cannot get rid of the page header, despite the fact that this ...