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

1
vote
1answer
53 views

How to make a Quickly project standalone?

I have a Quickly project. But now I want it to be independent from Quickly. How can I do it? How can I run it without typing 'quickly run'?
5
votes
3answers
261 views

Sockets in Ubuntu Touch Apps

I am creating an IRC client for the Ubuntu App Showdown. I need a way to be able to access an IRC server in QML (or JavaScript). What is the best way to accomplish this?
2
votes
1answer
441 views

Are there any synchronization APIs in Ubuntu Touch yet? (Contacts/Calendar/…)

Just wondering if there are any APIs to read/write Contacts/Calendar/Installed Apps/... yet. I thought about writing an OwnCloud Sync app for the showdown that should be able to synchronize all that ...
1
vote
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 ...
1
vote
2answers
2k views

How to read file contents in QML

My app require reading contents from a file. Can you do it using QML alone? Or should I use C++ for it ?
0
votes
1answer
249 views

Qt library: linked by ld.so.conf.d/qt.conf but were not found by installation package

I have problem while installing the program rthlibs. I have linked the library of Qt5.1.0 with the standard library via this command: Code: sudo sh -c "echo /usr/local/Qt5.1.0/5.1.0/gcc_64/lib > ...
1
vote
1answer
233 views

PyQt App deployment

I'm developing four bioinformatic software's with PyQt. I mostly target Windows OS users but since the programs run without any problems on Ubuntu, I thought to upload them to the USC (I also got ...
0
votes
1answer
39 views

PPA packages versions

I am developing an open-source Java application and want to distribute it for Ubuntu (12.04+) users through a PPA. My app depends on a Trove4j library v3+, but there is only 2.1 version of this ...
1
vote
1answer
578 views

I cannot install ubuntu-sdk

I have followed up to getting an Ubuntu Touch. But I cannot get Ubuntu SDK. • OS: Ubuntu 12.04 64-bit • Language: Korean I opened the terminal and ran sudo add-apt-repository ...
0
votes
1answer
292 views

I want to create .dmg file from my source file on ubuntu so that I can distribute it on mac?

Is there a way to create .dmg file from my source file, from command line, or is there any software available which will allow me to roll out my software on mac OS as well? Thanks in advance.
1
vote
1answer
352 views

Glade, quickly and changing an image with code

I have created the default ubuntu-application template using quickly and I'm trying to work out how to change the displayed image through code. The default image shows an ubuntu logo with the path ...
2
votes
0answers
26 views

Will Ubuntu Touch apps work in Linux / Windows / Mac?

I mean, it looks like they're made with cross-platform technologies, but realistically how much effort would be involved in (say) making a Windows installer for one?
41
votes
3answers
30k views

Gradle in Ubuntu

It appears that Ubuntu doesn't have new versions of Gradle in their repositories for some reason. I need it for a project that will be build by Launchpad. What should I do about this?
-1
votes
2answers
115 views

my app is showing twice in the software centre?

I have published an application in the software center by uploading dsc and tar.gz in an archive. In the software center it is showing twice one with my application icon and one with default icon. ...
2
votes
1answer
113 views

db.changeVersion doesn't work as expected

I'm trying to upgrade a DB in an app. I use QtQuick.LocalStorage 2.0. When I call db.changeVersion it works, but db.version doesn't change until app restarts. db.changeVersion(db.version, "2", ...
4
votes
1answer
677 views

How to get QML syntax highlighting in gedit?

QML files opened with gedit don't have syntax highlighting. Is there a package providing a gtksourceview lang.spec file for QML? If not, has anyone written a lang.spec than can be installed locally?
0
votes
1answer
74 views

How long does it take for a proprietary software to get reviewed to Ubuntu

My application is just a .py file that has a GUI. I tarred it and uploaded it to Myapps under proprietary license ($0.0) as I have no idea about packaging. The source code is available at Github. It ...
1
vote
1answer
52 views

What should I upload for submitting a proprietary app to USC?

I have an app ready to be submitted to Ubuntu Software Center. It is open-source and the source code is in Github. But I want to submit it under proprietary license ($0.0 however) as I would not have ...
2
votes
1answer
556 views

GtkSourceView in Glade and C++

I try to develop a text editor in C++ and Gtkmm using Glade but I have a problem. When I try to run the program, I have the following message:"BuilderError: Invalid object type `GtkSourceView'". I ...
3
votes
1answer
220 views

How to check battery status with the Ubuntu SDK?

I am developing an app and I need to monitor the battery status, with the SDK how do I obtain the devices (phone) battery status? can this be done with javascript?
0
votes
1answer
173 views

How can I get user/system information in a QML mobile app?

In this specific case, I'd like to use the full name of the currently logged-in user in a QML app (not the logname). As far as I found out, system calls can not yet be used (and would not be an ...
3
votes
1answer
418 views

How to properly package an Ubuntu Touch application with Qt Creator (Ubuntu SDK)

In the new Ubuntu SDK there is an option to "Create application package" in "Build/Ubuntu Touch". Is there any tutoriel to explain how it works? It seems that it creats a "debian" folder with many ...
2
votes
1answer
304 views

ubuntu touch core apps | database version mismatch

I am not able to run Ubuntu touch core apps properly. It was running fine until I installed QT5 along with QT4. I tried removing all and installing ubuntu-sdk from scratch. But still no luck. Error ...
0
votes
1answer
64 views

Different toolbar icons depending on active tab

i am attempting to write a small email client with local storage for ubuntu touch. I was wondering if there is a way for me to construct my toobar such that i only have to build one toolbar (rather ...
1
vote
1answer
438 views

fakeroot and package building

We have developed a network pub/sub communication suite. It is in use across a number of different applications and domains, most notably on our payloads aboard the International Space Station (ISS). ...
1
vote
2answers
551 views

Ubuntu App Development Cookbook

Is there any book available for studying Ubuntu SDK. The documentation may be enough, but it lacks a real flow. After the introduction chapters it becomes a bit confusing. I really want to do ...
19
votes
5answers
6k views

What programming languages should I learn to become an Ubuntu developer? [closed]

Although I have used NetBeans once for a project, what languages do I need to learn to become a full-fledged Ubuntu developer? My project in NetBeans (Java only) was to design a calculator ...
1
vote
1answer
202 views

Bad color of backgroundColor in a MainView when fixed to “#F1E1A3”

I have a strange problem. When I fix the backgroundColor in a MainView to "#F1E1A3" it doesn't show me the good color since when I draw a rectangle in the page with the same color, I see a difference ...
3
votes
1answer
453 views

How to write cloud-specific application upon ubuntu cloud infrastructure?

Say there is a ready-to-use ubuntu private cloud infrastructure using MAAS, juju and OpenStack. The next step for a newbie developer is trying to write an application upon this infrastructure as a ...
3
votes
2answers
808 views

Debugging HTML5 With Ubuntu SDK

I read this Question: Can I develop a hybrid native/HTML5 app for the Ubuntu Phone? And it has a great answer, but that is no longer supported in the Ubuntu SDK (Ubuntu 13.04), now it uses: import ...
1
vote
1answer
647 views

How can TextField input be validated for long integers?

I need the user to be able to input an integer, restricted to values between 0 and an upper bound. The upper bound is too big to fit within the 'int' data type so I have used a 'real' data type with a ...
2
votes
1answer
6k views

Modification of stack size by ulimit -s

When I type ulimit -s in terminal it shows 8192. Does it mean that in my C code I could only have local variable of 8192 bytes? I am confused which stack size. Does ulimit -s change when we modify ...
0
votes
1answer
93 views

package development tools [duplicate]

I have some source code, I would like to make into Debian packages for Ubuntu. its been quite some times since I made packages, and I am wondering if there are any really great tools out there to help ...
1
vote
0answers
162 views

Why is the libindicator reporting all scroll event signals as UP?

I am trying to investigate this bug; the gist is, if you have a Unity application indicator, and you scroll over it, the scroll event is always 'up', even if you scroll down. Here is a sample ...
2
votes
1answer
1k views

Qt creator HTML5 project -lsqlite3

I've download the Ubuntu SDK to make apps. Building a native app went great in QtCreator. But now I'm trying to build an app using QtCreator with HTML5. So I made a new project and chose HTML5 as ...
0
votes
1answer
50 views

development desktop in ubuntu 12.04 [duplicate]

how do I create programs for ubuntu, with the same ease that I have with visual studio express on windows?
-1
votes
1answer
41 views

I'm having a difficulty in the application intalled menu [closed]

How can I see all the installed application collectively except the default ones If there's not, please make one because it's hard to know if its a default or a installed one. And a default programs ...
0
votes
0answers
33 views

How can I write apps with Java for Ubuntu Phone? [duplicate]

How can I write apps with Java for Ubuntu Phone? I am waiting this operating system and I want to be the one of those that will write apps for this new operating system. Best regards. Nodar
1
vote
1answer
437 views

How do I install and reference QtLocation 5.0?

I am trying to run a sample application in Qt Creator which has an import QtLocation 5.0 statement at the top. I have already installed the Ubuntu SDK. I searched the software center for ...
2
votes
1answer
53 views

Possible to download packaged deb file before final publishing on myapps portal?

first of all sorry if this is a stupid question (or the wrong place to ask said stupid question!), but I've looked all over for an answer and couldn't find one. I've recently submitted my game ...
0
votes
1answer
66 views

Programmatically Present Windows (Invoke Window Picker) in Compiz

Is there a bash command to invoke what Super+W does in Ubuntu?
1
vote
1answer
168 views

QML button colors not working

I have followed the steps in here, and the app runs, but I am running into a little problem. The buttons for input and output are nigh invisible, as they use the same grey background color as the ...
0
votes
1answer
376 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
55 views

Can I download Ubuntu for my Galaxy S lll Fido?

I dont like the Google and all other apps I have with my phone. I need a OS for my phone that I can surf the net, make calls, use a kind of OpenOffice app, have a contact list, etc. Thank you.
2
votes
1answer
51 views

How could I translate VLC into Norwegian (bokmaal)?

I want to contribute to the fabulous Ubuntu world, but am a novice in technology and programming. But on the contrary, I am quite strong within my language Norwegian (bokmaal). (Norway is bilingual). ...
2
votes
2answers
344 views

autopilot ImportError: No module named input

I'm on Ubuntu 13.04. I'm following this tutorial to write autopilot tests. I get an error when I try to run or list the autopilot tests: $autopilot list CurrencyConverter Loading tests from: ...
2
votes
1answer
602 views

Set background for Page{} element in ubuntu touch

How can I set the Background (picture or color) of The Page{} element in ubuntu touch? Thank You, Boaz
0
votes
1answer
41 views

Clickable emails in Label

In my app (ite-missa-est) and in the sudoku-app we are wondering how to make an email clickable as a URL link is. In a label the code for a link is: Label { //TRANSLATORS: here is the ...
2
votes
0answers
60 views

Design standard for “About” and “Options” [closed]

I have seen that in many Ubuntu Touch projects that the way to do "options" (or "settings") and "about" is done with a Tab. Is that good for the design guideline of Ubuntu Touch? Is there a standard? ...
1
vote
2answers
438 views

How do I make a random amount of an elements in QML

I am trying to make an app with QML for Ubuntu Touch that is similar to the game Avalanche, and am unsure how to go about inserting a varying number of falling blocks. All of the blocks will be the ...