Questions tagged [development]

For questions about software development and related tools on elementary OS

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votes
1answer
176 views

Buttons' Look in a Gtk.MessageDialog

Elementary's human interface guidelines specify how dialogs should look: In Valadoc, there is a minimal example on how Gtk.MessageDialog is to be used: Gtk.MessageDialog msg = new Gtk.MessageDialog (...
0
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1answer
38 views

How to compile and install changes to Elementary?

I just decided to switch over from Ubuntu 18.04 LTS to Elementary OS 5.1 (Hara) and like to tweak my desktop to hide the date/time in the top panel. I found an answer to hiding the date in the top ...
0
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1answer
80 views

GTK# Apps in the Store

Looking through the documentation on Houston and other questions here, it is a hard requirement that all apps be a native GTK application for hosting on the store. Does that extend to GTK# due to the ...
0
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3answers
637 views

Why doesn't elementary OS include screensaver by default?

What made the developer's team to decide not to have a screensaver option on the elementary OS settings?
1
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2answers
435 views

Unable to locate elementary-sdk

When a try: sudo apt install elementary-sdk it says Unable to locate package elementary-sdk It's a fresh install of loki. apt update give me a 404 error. Err:7 http://br.archive.ubuntu....
1
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1answer
36 views

Developer Support?

Is there an official channel for developers. I tried to bring up the slack channel they had on the developer documentation but it seems to be offline. I'm stuck with an issue on the app that I'm ...
1
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2answers
21 views

Can't change value in struct property inside class

io = {}; io.wchar = 111111; debug((string)io.wchar); // (null) So the problem here is that io.wchar is still null. You can look at the whole class here: https://github.com/stsdc/monitor/blob/dev/src/...
6
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5answers
2k views

Concern about the future of vala

I'm prototyping an application using Vala, in hope of targeting elementary OS. It was actually the elementary website at Build for elementary OS that first steered me towards Vala. Now, Gnome is ...
2
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1answer
218 views

Flutter development environment in elementary OS

I am a beginner in using elementary OS. I really like the look and feel of the elementary OS and like to setup a development environment in my PC for flutter application development. I googled for ...
0
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1answer
44 views

How to develop wingpanel extension in plain C language?

I am trying to find a way to develop wingpanel extension in plain C code. Every time that I asked question about app development in elementary OS, They just said that you should learn Vala language. ...
2
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0answers
31 views

Debugging applications during development

I wanted to start working on issue https://github.com/elementary/calendar/issues/419 but I encountered a bug. So I wanted to debug the application code I added. I found this tutorial on debugging ...
1
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0answers
18 views

How to debug Gala and other system apps?

I see this other question on a debug workflow for app development. In it, the answer is to use printfs and viewing the printed data on a terminal, but I don't see how that's easy with things like Gala,...
0
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0answers
27 views

Using a library in a project won't work: taglib, tag_c.h not found

So I am tinkering with making an app that uses the taglib library. Currently I installed the library to '/usr/include/taglib/' but when I try to build my app with sudo ninja install it says that it ...
1
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2answers
78 views

Will we have an SDK for elementary OS?

Does the developer team have any plans to produce an SDk for the operating system? I imagine the great effort to produce a larger application.
4
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1answer
479 views

How to develop extensions for Code?

How can I develop an Extension for Code. I want to recreate atom's pigments package into Code.
3
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1answer
223 views

Setting up a development environment for elementaryOS apps?

what's the best tool chain for building elementary applications these days? I've been playing with an existing project that contains a lot of other magic (such as meson, ninja and the like), and while ...
4
votes
2answers
338 views

How do I build and install gala plugins on freya?

There's loads of cool in development plugins like tiling and chat bubbles, how do I get them running? as a followup question is there an easy way to begin developing plugins for gala? I don't mind ...
2
votes
1answer
103 views

How to get a specific kernel sources?

I'd like to get the kernel sources related to my installed image. Currently I have the version 3.19.0-39 installed into my VM. When trying to get the sources, I searched into cache using apt-cache ...
1
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0answers
11 views

Build fails appcenter bot test

I recently switched over to elementary os and a friend told me about how easy it is to develop apps for the os. I switch over and the first thing i instantly miss is whatsapp. I use it daily for work ...
0
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2answers
76 views

Error with translations while following “Get Started” tutorial

I was following along with the "Getting Started" tutorial, and when I got to the step to add translations, my project started failing to compile. I can't make sense of the error. It would be really ...
4
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2answers
3k views

How to launch Android Studio in elementary OS

I am using freya. I have installed Android Studio. I don't find it in application menu. Every time I have to use studio.sh manually. How can I launch it directly from app menu and from terminal ?
0
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2answers
396 views

Is anyone a Node.js developer using elementary OS?

I am moving from Mac after 10 years and have chosen to go with Linux for both my desktop and laptop. I currently have Ubuntu 16.04 running and with a few visual tweaks I really like it. I have seen ...
5
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1answer
220 views

Can't build package from developer getting started doc

I'm following the developer getting started document, and have worked my way here: http://elementary.io/docs/code/getting-started#launchpad-recipes I'm able to build the hello-packaging application ...
2
votes
2answers
151 views

App development with Ruby in elementary OS

Does any one have any prior experience with making gtk3 apps with Ruby, and the bindings to the apis for ruby (GObject etc)?
1
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2answers
172 views

Loki 0.4.1 and replacing Windows help

I have a new Alienware 13 r3 and it came pre-loaded with Windows 10. I read that Loki 0.4.1 supports everything on this Alienware model perfectly. Touch screen included. I'm looking to learn c# and ...
-1
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1answer
41 views

Compiling with custom vapi leads to error

Added CUSTOM_VAPIS with vapi/libgtop-2.0.vapi to vala_precompile() in CmakeLists.txt and got this error: No rules for target '../src/vapi/libgtop-2.0.vapi' ... How to add vapi files properly?
0
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1answer
818 views

is vala dead? because it's a nice language [duplicate]

i've been following ubuntu since 9.04 installing it and trying it - then found gnome now that gnome is going to be standard desktop come next release - i thought i would like to be involved in ...
0
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2answers
110 views

Missing Library

I'm trying to get into developing for Elementary using Vala. I have been unsuccessfully trying to build Valama (an IDE for Vala) for ages but keep hitting hurdles. Currently when I try to make Valama ...
0
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1answer
184 views

cmake .. not found package

I'm try to build and install Photos, but cmake give me an error: No package 'geocode-glib-1.0' found Already try to install try to install libgeocode-glib0. Then install libgeocode-glib-dev and ...
1
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0answers
35 views

wxPython TaskBarIcon fails on elementaryOS

In eOS 0.4 (Loki) the wxPython (3.0.2 gtk2 classic) wx.TaskBarIcon.IsAvailable() method returns False and of course ignoring this just results in no icon being shown. Is there a workaround for this or ...
0
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1answer
152 views

WebKitGTK not installed / unknown version detected

Trying to build pantheon-mail I bump into this error when running cmake. CMake Error at src/CMakeLists.txt:493 (message): WebKitGTK not installed / unknown version detected Which version of ...
4
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1answer
127 views

Adding feature to elementary os

I am new in open source projects development and maintenance is there any guide to start adding features or editing ones in elementary os ?
1
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1answer
384 views

How to write plugin for scratch text editor from elementary os?

I've been using scratch for quite some time and its features as an IDE are very limited. So I was wondering how to develop/install new third party plugins for it but I was unable to find any ...
2
votes
1answer
127 views

elementary OS application development databases?

Is there any resources/documentation on which database can be use to save application input data. I am trying to build an invoicing application for elementary OS Loki.
0
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1answer
132 views

Native/universal app format or easier to install apps for elementary os, plus a few other quick questions [closed]

Hello :) Just a few quick questions/suggestions, sorry about any grammatical mistakes, my english isn't too good but I'm learning I love the elementary os, i'm a huge fan! Thank you for creating it ...
2
votes
1answer
968 views

I've added the Daily PPA and Appstream causes an error when trying to upgrade

I've added the Daily PPA (don't worry, I have another partition with a stable elementary, this is just for learning) and when I try to apt upgrade -f (or the same without the -f) I get the following ...
1
vote
1answer
165 views

StatusIcon not showing/working

Good morning dear community, i have a little trouble and i can't found any proper explanation for this issue, actually i'm developing an small application to hear radio streaming using Vala and ...
2
votes
3answers
304 views

Where to find the list of components of an elementary OS release?

Where can I find a list of applications and other components of the operating system? (E.g., is the desktop environment KDE or GNOME? Where are the names of the applications menu, toolbar at the ...
0
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2answers
92 views

Contributing to elementary OS team [duplicate]

I've been using elementary OS Freya for almost a year and recently switched to Loki, which is much better in every aspect. As a daily user of the OS, I see areas where I feel that some features can be ...
1
vote
1answer
72 views

Uninstalling hello-again App from elementary OS developer tutorial

I went through the Getting Started documentation this evening and successfully installed my hello-again App into my Applications menu. Now I'm trying to figure out how to uninstall it and having no ...
0
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1answer
40 views

Determine if Notebook or Desktop in Vala

I'm developing extension for wingpanel-indicator-power which allows you to change the screen brightness directory from the indicator. The the moment this is only possible by accessing the power ...
1
vote
1answer
58 views

In which thing OS is developed/written?

If it is another OS then how was the first OS made?
0
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1answer
254 views

How to publish on elementary os app center [duplicate]

I have made a game together with my friends and we thought I'd be great to have it on the elementary app store. How would you go about making that happen? Publish it to the official Ubuntu ...
1
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2answers
59 views

Workflow for testing bug fixes

After reading through all of the documentation with regard to getting started in developing for elementary OS, I am still a little unclear on how one actually tests their code for bug fixes. As an ...
3
votes
1answer
310 views

Using Swift together with elementary frameworks?

How is it possible to use Swift as programming language for elementaryOS? As far as I've seen elementaryOS is based on Ubuntu. So installing & using Swift should be a snap. But I'm quite unsure ...
1
vote
1answer
796 views

How to adapt the Elementary Look & Feel in Qt-written apps?

I was wondering, how an app which uses Qt for its GUI can be adapted to the Elementary Look & Feel. I know that elementary-specific apps are typically written in Vala, where, according to the docs,...
3
votes
2answers
446 views

How can I enable syntax highlighting in vim?

I have the usual filetype plugin indent on and syntax on commands in my .vimrc and can verify that filetype is correctly recognised. But no syntax highlighting. What can I do? This worked out of the ...
1
vote
1answer
160 views

Compiling AppCenter on Ubuntu 16.04 fails at “AlertView”

I'm trying to compile the appcenter package from launchpad, I've downloaded it by the bzr command, then I installed the required dependencies and ran the cmake command but when I try to compile it ...
1
vote
1answer
460 views

error: Package `libcanberra' not found in specified Vala API directories

When I try to compile a project with pkg libcanberra using command [valac --pkg libcanberra *.vala ], I am getting below error, error: Package `libcanberra' not found in specified Vala API ...
1
vote
1answer
50 views

Granite Widgets : Unable to append a new action item to welcome page at runtime

I am trying to add and remove action to welcome screen at run time on pressing Add and Delete buttons in Header Bar. I am unable to append a new action item to welcome page at runtime. check Code ...