Questions tagged [development]
For questions about software development and related tools on elementary OS
82
questions
1
vote
1answer
15 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: ...
0
votes
1answer
22 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 ...
0
votes
0answers
18 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?
0
votes
2answers
79 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 ...
0
votes
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 ...
0
votes
0answers
12 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 ...
0
votes
0answers
9 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 ...
0
votes
0answers
12 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 ...
0
votes
1answer
20 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
votes
0answers
21 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
votes
0answers
11 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 ...
0
votes
0answers
12 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
vote
1answer
26 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. ...
0
votes
0answers
6 views
How to use Granite.SettingsSidebar?
I want to use the Granite.SettingsSidebar widget in my app. Can anyone teach me how to do it?
I looked for tutorials and tips on the internet. I couldn't find any complete Vala tutorials so now I'm ...
1
vote
1answer
35 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://...
0
votes
0answers
21 views
How can I make the HeaderBar invisible in an app?
I am learning to make apps for Elementary OS. I have a question, how do I make the HeaderBar invisible?
I mean how I can I make an app like Planner by Alainm.
As you can see in the picture, the ...
0
votes
1answer
58 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
votes
2answers
146 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.
0
votes
0answers
9 views
Developer Portal: Internal error while running
I am trying to get my application into review but the bot fails to run my app and all it does is tell me "Internal error while running". This is extremely frustrating because I have no idea ...
0
votes
1answer
22 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, ...
0
votes
0answers
44 views
How to use Math in Vala
I can't seem to get Math.floor to work in my code. I have glib-2.0 installed and tried linking it in the build statement.
This is what happens when I build my app:
/usr/bin/ld: /tmp/cc4KsgDT.o: ...
1
vote
1answer
54 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 ...
1
vote
1answer
86 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 ...
1
vote
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/...
1
vote
1answer
43 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 ...
2
votes
1answer
365 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
votes
1answer
60 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
votes
1answer
75 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 ...
0
votes
1answer
115 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 ...
1
vote
0answers
22 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,...
1
vote
2answers
105 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
votes
1answer
742 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
votes
1answer
367 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 ...
1
vote
0answers
15 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
votes
2answers
140 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 ...
1
vote
2answers
525 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 ...
0
votes
3answers
942 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?
2
votes
2answers
159 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
votes
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?
0
votes
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 ...
1
vote
2answers
175 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 ...
0
votes
1answer
190 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
vote
2answers
514 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
vote
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
votes
2answers
114 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
votes
1answer
159 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
votes
1answer
133 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
vote
1answer
398 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 ...
6
votes
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
votes
1answer
134 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.
