Questions tagged [application-development]

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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1 answer
277 views

How to add events to built-in calendar?

I am looking for way to add events to this calendar. I know that I can use third-party applications to do it from GUI (or sync it with online service like Google) but I am specifically interested on ...
6 votes
2 answers
278 views

How to package an application that contains a binary that needs to be in $PATH?

I am packaging an application that contains binaries that would normally go in /usr/bin and a shared library that would go in /usr/lib. However, the package guidelines for submitting applications to ...
1 vote
1 answer
240 views

Where do you set keywords for applications in order to get them to show up in software center and dash searches?

Exactly as the title states, what fields do you modify in order to return an app for specific search terms in dash and software-center? Is it keywords in the applications .desktop file? Something ...
2 votes
1 answer
358 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.
2 votes
1 answer
1k views

Is it possible to develop an app for Ubuntu with C (not C++)?

I just want to know if i can write GUI apps for Ubuntu using C--again, not C++. It's just that I hate having to learn a new language entirely (I know that they are similar in some ways but still). ...
6 votes
2 answers
219 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 ...
5 votes
3 answers
6k views

Android Studio - empty project after importing from Github

I have a big problem with android studio. Now I'm working on a project and I have to pair the repository from github to android studio. The connection and the clone of the folder went well. I can't ...
0 votes
3 answers
2k views

New to Ubuntu + Ruby Development + selenium

I am an automation engineer, I've been using Java bindings with selenium web-driver on a windows machine for development of automated tests, however, I am switching to Ruby for developing automated ...
37 votes
3 answers
43k views

How can I get a java apps to use the GTK+ theme?

Is there a way to get java apps to use my gtk theme?
0 votes
0 answers
55 views

Video upgrade problems (GT 710)

So I've been playing around with Ubuntu for a few months and finally decided to make my own NAS with it. I've installed PLEX, OpenVPN and few other things using guides I've found on this site as well ...
59 votes
3 answers
33k views

Why no library files installed for google test?

The libgtest-dev package seems only install header files to the system, but not the static and dynamic libraries which should be installed under /usr/lib. Is it a bug?
0 votes
0 answers
210 views

NS2 Software compilation issue in Ubuntu 18.04

I tried to build and compile NS2 source code in Ubuntu 18.04 LTS distribution but I get back that message: make: *** No rule to make the target « mit/rca/rcagent.c », necessary for « mit/rca/rcagent....
2 votes
2 answers
725 views

output "script" to pastebin readability

How do I paste output from the script command (typescript; "man script") so that it's more readable? Script started on 2017-10-27 06:20:56-0700 ]0;thufir@dur: ~/IdeaProjects[01;32mthufir@dur[00m:[01;...
20 votes
2 answers
10k views

How can I get started with developing apps for Ubuntu Touch? [closed]

I am interested in trying the new Ubuntu for phones OS development. (I am not an Ubuntu developer, I am new to Ubuntu. Impressed by the Ubuntu Touch preview, I got interested in learning how to ...
0 votes
3 answers
2k views

What can I do with Ubuntu without GUI?

I have some some problems with my notebook (RAM is 4 GB, so it works VERY slowly as I am a developer and use some applications that require high RAM which I currently don't have) and as I am new to ...
4 votes
4 answers
10k views

C# on Ubuntu 12.04

Is C# a good choice for Ubuntu programming? For example, Unity, or applications that will run on Ubuntu? Am I doing good wanting to learn C# when I'm determined to stick with Ubuntu and develop on it ...
10 votes
2 answers
21k views

What exactly are items in the /dev directory?

I have been writing an application in C++ that transmits radio messages by writing to a modem connected to the serial port. To do this I need to get a file descriptor using code of the form fd1=open(...
1 vote
2 answers
671 views

Launchpad PPA supporting multiple versions of Ubuntu

Is it possible for a Launchpad PPA to support multiple Ubuntu versions such as 10.04 and 12.04 when the package itself was built on a 12.04 machine? When trying to add the PPA to a older machine, it ...
1 vote
2 answers
4k views

how to install android studio with umake and snap? ubuntu-make.umake usage

How do install android-studio from umake through snap? It seems to be a matter of umake usage...but the command looks correct. thufir@dur:~$ thufir@dur:~$ snap install ubuntu-make error: This ...
5 votes
1 answer
6k views

How do I add stuff to top bar?

This is more of a asking for direction. What are the means of developing programs that can add something to the Ubuntu top bar? Let's say I want to make a program that shows the network traffic on ...
2 votes
1 answer
493 views

Graphical applications / ports / tasks manager?

I'm trying to manage my running applications for each port on Ubuntu (monitoring). Any suggestions for a graphical interface?
1 vote
2 answers
793 views

Running Ubuntu Touch applications in command line for gdb debugging?

I have already seen some answers related to this, but they didn't bring me to a definitive answer, so I'm going to try again. Basically, my question is: how can I run Ubuntu Touch applications from ...
0 votes
0 answers
74 views

Ubuntu server 16.04 - dashboard for managing running application / ports

I am running my ubuntu standard server on AWS EC2 instance. I have multiple application, each is running on a different port. I'd like to be able to monitor those applications. Is there any dashboard ...
0 votes
1 answer
228 views

Can I use GTK+ stock icons in a free closed source business application?

If so, have I to indicate anything in license (classical "About" window)?
2 votes
1 answer
3k views

How to create a simple GUI in C++; without Qt, Gtk, or Mondo? [duplicate]

newbie here using Ubuntu 18.04 LTS I am coming from the easy Windows world, I am trying to write an Windows Forms dialog application. When writing code I see that we have a choice between Mondo, Qt, ...
11 votes
3 answers
6k 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 ...
145 votes
6 answers
31k views

How to get my software into Ubuntu?

As a developer of free software, I want to get my application into Ubuntu. Should I provide a source tarball and ask for packaging? Or should I create a package myself? Should I target Ubuntu ...
4 votes
1 answer
2k views

Differences in GLib, Gtk+, GObject, Atk, GIO [closed]

What are the differences or relations of these libraries/terms in GNOME development?
1 vote
0 answers
138 views

Cannot access network from LXD container created by the ubuntu-sdk [duplicate]

I've created an LXD armhf image from inside the ubuntu-sdk, and I can launch it successfully. However, this image is not able to access the network: any execution of apt-get install ... will fail with ...
4 votes
1 answer
1k views

Building HTML cordova app and running directly on physical device

I've just finished to create simple HTML/Cordova application on Ubuntu. It works fine on the desktop. I just want now to build it, copy to real UBUNTU device and run it (Not from SDK). Which files ...
6 votes
2 answers
1k views

How can I programatically show/hide my app window with global shortcut key?

I'm writing a Notational Velocity clone for Gnome/Ubuntu using Quickly (PyGI) and I want to allow users to set a global shortcut key that will toggle the visibility of the app window when the app is ...
0 votes
0 answers
115 views

Change (ubuntu/kdeneon) system QT PATH

im crazy trying to changing the system qt path. because i install qtcreator and all developer libs with the qtcreator install from official site in /opt/Qt. the problem is that the system is using ...
3 votes
0 answers
2k views

How to fix Android Studio installation and Gradle errors?

I have installed Android Studio with the idea of developing applications with Cordova and Phonegap thanks to the help of my partner @karel who showed me this question: How to install Android Studio on ...
3 votes
1 answer
136 views

Do I need to install Eclipse to be able to develop applications with Cordova and Phonegap?

I have managed to install the Android SDK thanks to the response of the user @Kin. I only have one question, is it necessary to install eclipse to develop with cordova and Phonegap?
3 votes
2 answers
3k views

PyGTK: Opening Links in Default Web Browser

Is there a way to create a Gtk.Button("http://www.google.com"), when clicked will open the system default Web Browser using the label as the URL? What I could do is... import os button = Gtk.Button(...
3 votes
1 answer
6k views

QtLocation and QtPositioning not installed

I'm trying to develop a KDE widget that should display a map. At the moment I can't get the widget to load, because of the errors module "QtLocation" is not installed and module "QtPositioning" is not ...
2 votes
1 answer
218 views

How to add in-app advertising?

I'd like to code something cool for the ubuntu software center. I'll release my app for free, but I'd like to add some in-app advertising. how can I do that? Thanks to all developers here around ;)
0 votes
1 answer
629 views

KDE widget - run commands

I'm looking for a way to run commands in a widget I'm trying to develop. So far I've come across the org.kde.kio.KRun, which should be an interface to the kRunner. From the few examples I have seen, ...
3 votes
2 answers
1k views

What is the correct way to use the "scroll-event" signal (on an indicator) for Qt?

I am again at the same position, when I had the question What is the correct way to use g_signal_connect() in C++ for dynamic unity quicklists? There I was informed that the signature for my static ...
4 votes
2 answers
5k views

Is there a Wine equivalent for Android apps? [duplicate]

As Android is gaining more and more users every day (and Windows losing some), i consider reasonably fair for me to ask: Is there ANY Wine equivalent for Android apps? I'm not asking for native linux ...
1 vote
0 answers
118 views

Increase Popup time for Skype

Can we increase the Popup time for Skype in Ubuntu 18.04 LTS?
3 votes
1 answer
2k views

Minimal Qt5 install to compile code

I wrote a little program in C++ using Qt. Back when it was Qt4, in order for my friends to compile my program on their Ubuntu system, I would tell them, after getting my source files, to just run: ...
0 votes
1 answer
1k views

Failing to import pandas in Anjuta "module functions cannot set METH_CLASS or METH_STATIC"

I have this boilerplate in a minimal Anjuta app that runs. I do not want to install pandas to the system python path so I am using Virtualenv. When I add import pandas as pd I get the following error ...
5 votes
3 answers
12k views

How to get the list of all application installed which has GUI?

I want a list of all installed application which have a GUI. To be clear, At least all the applications that are listed in Show Applications. I tried several commands like apt list --installed, dpkg -...
0 votes
1 answer
294 views

Ubuntu for ARM and AMD64 compatibility

I am going to develop some applications for ubuntu running on AMD64. What I am curious about is will my application work for ubuntu running on ARM? I am noob on OS.
0 votes
0 answers
48 views

App-indicator work flow

I wanted to learn how app-indicator works in Ubuntu. I will be really thankful if anyone can help me in understanding the workflow of App-indicator. Thank you.
5 votes
2 answers
3k views

How to dynamically resize GTK notebook pages

I've got a Python app that uses a Gtk.Notebook widget to display different pages. Each of these pages contain a different set of widgets, and I've noticed that the 'tallest' widget in terms of ...
2 votes
1 answer
107 views

What does security_policy_version_matches_framework mean?

When uploading my click app to the store, I get an error in the automated review feedback: 1.2 != 1.3 (ubuntu-sdk-15.04) security_policy_version_matches_framework What does this mean, and how do I ...
0 votes
1 answer
515 views

How to create Ubuntu graphic C programs without Gtk?

Is there some sort of program or something to turn your text program graphical in C? Thank You, CCM
53 votes
1 answer
1k views

Building Full Perl Support in Ubuntu SDK

I am running Ubuntu v14.04, and after some effort, I have successfully installed the Ubuntu SDK. I need to use Perl + QML/Qt to develop a (potentially large) number of fully-functional apps through ...

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