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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How can I change the type of my application?

I generated my first WebApp for Ubuntu Touch. The app appears as an 'Application' in the Ubuntu Software Store which is wrong because it is a 'Web Application'. How can I change the type in section ...
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2answers
62 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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14 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 ...
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1answer
166 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: ...
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1answer
52 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 ...
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1answer
57 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 ?
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1answer
122 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 ...
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0answers
40 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" ...
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1answer
81 views

Begining Development for Ubuntu (and Linux in General). Where to start? [closed]

I realize this is not particularly a good question to ask here as it is largely opinion based but I'm not really sure where else to post this. Recently, I moved over to Ubuntu as my primary OS and am ...
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1answer
145 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.
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1answer
51 views

How to solve Bazaar error bzr: ERROR: unknown command “yerenkov-scott”?

I am following this guide to configure bazaar, but I have encountered a small problem, it says to type in the command: bzr launchpad-login subgenius And to replace launchpad-login with your ...
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0answers
89 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 ...
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1answer
60 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" } ...
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1answer
147 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?
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0answers
49 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 ...
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2answers
155 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 ...
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1answer
336 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 ...
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2answers
142 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 ...
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1answer
81 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 ...
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0answers
25 views

spinner not working in Quickly App

I'm developing an Ubuntu App using Quickly, I want the spinner to rotate when I press start button but It's not working. I have used the following code: # Code for other initialization actions ...
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0answers
23 views

Can we redirect the output of a program from terminal to the Quickly app?

Can we redirect the output of a program from terminal to the Quickly app, So that the output of my program will be displayed in the Quickly app? # Code for other initialization actions should be ...
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1answer
49 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.
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1answer
132 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 ...
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1answer
45 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 ...
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1answer
50 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 ...
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1answer
53 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 ...
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2answers
210 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 ...
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2answers
880 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 ...
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2answers
99 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 ...
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2answers
148 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 ...
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1answer
136 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 ...
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2answers
76 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, ...
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0answers
41 views

Can't start application in the Emulator

I created in UBUNTU SDK new project ( QML App with C++ plugin ). I can run it as desktop application, but when I want to start it in the emulator I got following error : ...
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How to install ubuntu 14.04 lts alongside windows 7 on Lenovo ideadpad S510P?

I am trying to install Ubuntu 14.04lts on Lenovo ideapad S510P having windows7. But at the time of ubuntu installation it is not finding existing o.s(windows7) on drive. It is showing empty disk. On ...
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1answer
526 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 ...
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8 views

How to Record Screen with Webcam? [duplicate]

I was wondering how to record my screen using my webcam what program should I use. If you can tell me the command to install it to. Thanks :)
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2answers
7k 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 ...
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1answer
230 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 ...
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0answers
43 views

Error while installing QML app on ubuntu device using QT creator

I am getting following errors when try to install an application on my Nexus 4 having Latest Ubuntu Touch OS. :-1: error: lint_maintainer_domain: (EMAIL NEEDS HUMAN REVIEW) email domain too long ...
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7 views

Coby Kyros Mid 9742 is compatible with ubuntu for android? [duplicate]

hello im intresting in installing Ubuntu on my Tablet i want to really be part of the Ubuntu family i was wondering if it possible to install Ubuntu for mobiles and Tablet into this Tablet Coby Kyros ...
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1answer
42 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 ?
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2answers
1k 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 ...
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8 views

Possible to change architecture for published application in myapps afterwards

is it possible to change/add architecture for published applications in https://myapps.developer.ubuntu.com afterwards? Actually: Supported architectures:32-bit x86 But I want to support armhf click ...
4
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1answer
69 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 ...
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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
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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 ...
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1answer
94 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 ...
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1answer
55 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 ...
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36 views

How can a button link to an action in Glade involving a text box?

I am developing a Ubuntu program with Glade and I would like the program to interact with text input from the Text Entry widget when the button widget is pressed. How would I accomplish this? On a ...
4
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2answers
6k 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 ...