Questions tagged [development]

For questions about software development and related tools on elementary OS

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2answers
209 views

What happened to the Elementary OS Discord server?

I have looked online and found the Elementary OS discord server but all the links say they are invalid.
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1answer
122 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 ...
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0answers
3 views

.Net support to deliver elementary apps

Now .NET release 6 allows multiplatform development, is there something planed to ease .Net development platform to deliver elementary apps ? Regards
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2answers
150 views

Flatpak manifest for new apps?

Is Flatpak manifest file still needed for new apps? I read about it here: https://docs.elementary.io/develop/writing-apps/our-first-app/packaging but I also checked some Elementry OS apps sources on ...
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0answers
8 views

How can I draw basic 3d with Vala?

I'd like to make a visualizer in Vala for EOS. The first chunk I'd like to achieve is drawing a rotating red cube. I tried valadoc for "3d" and "gpu" but it only came up with non-...
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1answer
252 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 (...
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1answer
18 views

Why does compiling gala from source not work unless I change how HashMap is used?

When I grab gala source either from GitHub or from apt source gala I get version 3.3.2 and when I run ninja to build it I get this error: ../src/Background/BackgroundSource.vala:123.17-123.34: error: ...
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1answer
24 views

Create your root folder called "gtk-hello"

I am learning to code following the instructions on the elementary website. It said Create your root folder called "gtk-hello" My question is how do I Create this? Thanks for taking the time ...
0
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1answer
30 views

What is the currently recommended development setup?

I want to contribute to some elementaryOS apps, like Mail and Files. If I'm on 5.1, the versions of meson and valac are too old for those applications, as specified in their meson.build files. If I'm ...
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0answers
25 views

Publishing an app in AppCenter

I have some issue publishing my app in AppCenter. Is there any development channel (slack, discord, irc) related to AppCenter issues?
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0answers
32 views

Deiconify app when custom shortcut is pressed

I set custom shortcut to my application I have been developing with gtkmm library. When I press CTRL+ALT+V my app is being opened [ok]. However when I minimize an app and then press shortcut once ...
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0answers
14 views

Draining Battery in Suspend Mode

On my laptop, I need to modify /etc/default/grub to avoid Draining Battery in Suspend Mode, like it is explain here : https://learnubuntumate.weebly.com/draining-battery.html On elementaryos 5.1.7 or ...
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0answers
12 views

Create list to be added in Gtk.ListBoxRow

I created a List using this code. Now when I try to access the elements of the list, the compiler displays this error: Can someone suggest how to solve this problem? This is how I try to access each ...
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0answers
14 views

Gtk grid inside another grid not visible on the main window

I made a separate file for all the labels to be used in the main window called Labels.vala This is the code inside that file: Now, when I try to add this class to a grid inside the main window, it ...
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0answers
23 views

How to update between early access nightlies?

I’m getting started with elementary OS on Raspberry Pi. I installed a nightly build a few days ago and would like to stay current by regularly updating to the latest nightly build. I couldn’t find ...
0
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0answers
13 views

HashMap not removing keys

I'm developing a simple chess game in vala (source code here) and i'm have some issues with removing keys from an HashMap. For the checkboard i'm using an HashMap with pair of Coordinate Object and ...
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0answers
14 views

Is it possible to make cross-platform apps that feel natural in elementary os?

I'd like to create an app for EOS but I don't want to target it alone. The best solution I've found is to use QT, but it appears that produces odd looking apps in EOS. Is there a way to have an app ...
1
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1answer
32 views

StackSIdebar is not visible

I used Gtk.StackSidebar to create a sidebar for an app that I am making. https://github.com/Suzie97/Project_X97, this is the link to my github repo. The sidebar is not correctly visible on the window. ...
1
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1answer
37 views

Window position and size not saved when app is closed

I made this simple application and made it so that the window position and size is saved on closing the app, so that the next time the user opens the app, he can resume his work directly. https://...
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1answer
65 views

gsettings schema isnt installed

I am learning to make apps for Elementary OS. I wrote my app it compiles well without any errors. But when I try to open the application, it displays a message stating gsettings schema isnt installed. ...
0
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1answer
54 views

How to add granite package

What package do I need to add to my project in order to use granite? All I get is "The name `Granite' does not exist in the context of..." I tried libgranite-dev but it isn't found. Also, ...
1
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1answer
61 views

Do I have to use Vala to build my app to get it on the App Store?

I notice they have Vala shown front and center, but I'd much rather use electron with React so I don't have to learn a whole new language. Would they accept a submission in React? Found this: Your ...
2
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1answer
82 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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1answer
102 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 ...
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3answers
1k 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?
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2answers
532 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....
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1answer
44 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 ...
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2answers
24 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/...
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5answers
3k 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
406 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
65 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. ...
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0answers
23 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,...
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2answers
118 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
793 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
418 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
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2answers
396 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
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1answer
119 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
17 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 ...
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2answers
148 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 ?
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2answers
542 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
226 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
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2answers
160 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)?
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2answers
176 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
44 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?
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1answer
1k 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
116 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
191 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
41 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
164 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 ...