Questions tagged [qml]
Questions related to the development of QML applications on the Ubuntu environment.
353
questions
-1
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0
answers
7
views
How to disable the drag animation in Mouse area in qml, but i want to handle the yvlaue changes when dragged from 0 to item height
import QtQuick 2.15
import QtQuick.Window 2.15
Window {
width: 640
height: 480
visible: true
title: qsTr("Hello World")
Item {
id: _item
width: 100; height: 50;
Rectangle {
...
0
votes
0
answers
53
views
How to emit signal when scrollbar is moved in scrollview
Is there any signal which get emitted when scrollbar moved in the scrollview or else please help me to emit the signal when scrollbar moved. Thanks in advance.
1
vote
1
answer
431
views
How to fix the error qmlscene: could not find a Qt installation of '' in Ubuntu Unity 22.10?
I compiled this app made for Ubuntu Touch in Ubuntu Unity 22.10.
The app can be run with qmlscene %U /path/to/qml/Main.qml.
When I run qmlscene, I get the error
qmlscene: could not find a Qt ...
- 28.5k
0
votes
1
answer
95
views
Creating a folder from QML with /bin/sh -c mkdir
Hi I'm trying to create a folder from QML with a QProcess call:
qproc.start("/bin/sh -c 'mkdir -p /tmp/x'");
It doesn't do anything. Nor does it return any error.
From what I read, this ...
- 89
0
votes
0
answers
233
views
Syntax Error on accessing JSON data in QML data from python youtube_dl
I have a simple youtube_dl function to access the youtube download links here,
@QtCore.Slot(str, result=str)
def getDownloadLinks(self, url):
try:
with youtube_dl.YoutubeDL({}) as ydl:
...
1
vote
1
answer
823
views
[QT][QML] Unable to use QTLocation and QTPositioning in my QML view
in my QT/QML project created with QT 6.1 and operating system Ubuntu 20.04 I would use the QTMapView. In order to do this, I tried to install QTLocation and QTPosition by using the following command:
...
- 113
0
votes
1
answer
4k
views
KDE Widget not loading- Netspeed widget
This is the error i'm facing...
Error loading QML file:
file:///home/conman/.local/share/plasma/plasmoids/org.kde.netspeedWidget/contents/ui/main.qml:45:37: Type CompactRepresentation unavailable
...
- 165
0
votes
1
answer
683
views
How to get a screen shot of a window from command line using window id
How to get a screenshot of only one window from the command line if I have window id?
I want to show a preview screen like this for a specific window with qml and pyqt5. What can I do then?
1
vote
0
answers
231
views
How to make a lockscreen for xfce using qml without sddm lockscreen
I was trying to make a lock screen for Xfce and gnome using QML and python PyQt5.
main.qml
import QtQuick 2.12
import QtQuick.Controls 2.12
import QtQuick.Window 2.12
import QtGraphicalEffects 1.0
...
1
vote
2
answers
1k
views
How to hide running app icon from gnome panel QML PyQt5
I am working on a widget manager like conky in gnome. I want to hide only my ap my application icon(display all other running apps icons) from running apps or from here
this is my qml file
import ...
4
votes
1
answer
9k
views
Error with Qtcreator when running project "error: Unknown module(s) in QT: qml quickwidgets svg quick" [duplicate]
I have successfully installed Qtcreator 5.9.7 on Linux 18.04, checked by running example project. Now I am trying to run my old project, created on 5.7.1 on Desktop PC and getting the following error.
...
- 91
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 ...
- 269
0
votes
1
answer
1k
views
How to get SDDM themes working on Xubuntu?
My problem is the following :
I'm on Xubuntu, and I use SDDM on xfce. I need to use SDDM because there is a theme I want to use on it, I've installed it in the right folder, changed SDDM.conf, and ...
0
votes
1
answer
612
views
Lock Screen date and time configuration [duplicate]
Just installed Kubuntu 17.04 on my computer.
When the lock screen comes on the time is shown as am/pm while I want to have it in 24 hours format. The date comes as yyyy.MM.dd.day, which I wanted to ...
0
votes
1
answer
239
views
Snapcraft qml module
I am making a simple application on qt/qml, but I can't make the application into a snap.
snapcraft write error :Project ERROR: Unknown module(s) in QT: qml quick.
my Source Code.
My snapcraft ...
- 188
1
vote
0
answers
314
views
Getting camera buffer using Qt with c++ and QML
I am new in Ubuntu touch apps development.
my question is : is there a method to get a buffer or images from phone camera using C++. after that, i must process these images pixel per pixel and past ...
2
votes
0
answers
109
views
Is there a way to access filesystem from a HTML5 App in Ubuntu Touch?
I'm trying to adapt a html5 app written originnally for Firefox OS to Ubuntu Touch. There are various issues, like file system access, contacts access, notifications and others. I want to know if ...
- 31
2
votes
0
answers
228
views
Pyotherside for Ubuntu Touch Mendeley App
I am an owner of both the BQ M10 Ubuntu Tablet and the BQ Aquaris E4.5 Ubuntu Phone and I am very unhappy with the absence of a Mendeley app for these devices. For this reason, I want to code it ...
- 21
2
votes
1
answer
1k
views
Creating simple login form using Qt creator without any QtQuickControls
I am new to Qt Creator . I want to build a simple form( example a Login form)
with a submit button in qml but without using any import QtQuick.Controls. How to create buttons using Rectangle component?...
- 31
1
vote
0
answers
295
views
Ubuntu Touch apparmor denials when making Http Post/Get requests?
I'm trying my hand at developing a native QML app for Ubuntu Touch, but when it comes to fetching remote content from my server to populate a list view, it fails with an apparmor denial.
Here is my ...
- 1,798
0
votes
1
answer
229
views
pyotherside cannot be loaded on Ubuntu 16.10
I recently updated from Ubuntu 16.04 to Ubuntu 16.10 and want to recover an old Ubuntu Touch App that I wrote using pyotherside. I have installed both packages
qml-module-io-thp-pyotherside
and
...
- 21
1
vote
1
answer
536
views
Is QtAudioEngine available for Ubuntu 16.04?
I'm trying to add sound to a Qt application on Ubuntu 16.04 with the Ubuntu SDK. The following QML builds but fails at run-time with module "QtAudioEngine" is not installed:
import QtQuick 2.2
...
- 11
1
vote
0
answers
104
views
How do I get the Reminders app to work?
I installed the Reminders app on Ubuntu Xenial (not Ubuntu Touch):
sudo apt install reminders-app
It doesn't seem to start correctly:
Running against the production server
using main qml file from: ...
- 7,956
0
votes
1
answer
246
views
How to create a cross-platform Ubuntu Touch app without qmlscene?
I have learned C++ and Qt to be able to create cross-platform apps.
I have a very simple app built as executable that runs on desktop but I can't figure out how to make it work on my Ubuntu phone.
...
- 133
0
votes
1
answer
66
views
deploy Ubuntu SDK qml app to Windows?
I'm wondering if its possible to deploy an app made with the Ubuntu SDK in qml to Windows or Mac? and also to other distros which I think should be possible through a snap?
Thanks
2
votes
1
answer
33k
views
Installing Qt 5.x on Ubuntu globally
Hello everyone! :)
I need to install Qt 5 globally on Ubuntu to be able to use QML libraries like Kirigami. However, the wast majority of Google search results tell how to install it locally (as a ...
- 123
0
votes
1
answer
99
views
U1Db QML API database on Application update
I have made an application in QML that uses U1Db qml Api (sdk 15.04.5). The Application create a database to save his data. The application is already loaded on Ubuntu store and available to the users....
1
vote
1
answer
601
views
ListView model reload with U1db.Query
I have a ListView with his model coming from a U1db.Query
The reading and saving operation form U1db works, but i need to update the ListView model when a new item is inserted in the database, to ...
0
votes
1
answer
2k
views
Running QML/C++ application build with CMake is unable to run from QtCreator or snap package
I am trying to get a QML/C++ application packaged as a snap. I am using CMake as a build system. The application builds fine and I am able to run the executable by double clicking on it. When trying ...
- 760
1
vote
0
answers
41
views
content hub: make my app available to others
My app uses the phone's microphone to record audio. I need to make it available to other apps so that they can call upon it whenever they want to.
Say email or a messaging service like telegram ...
- 51
3
votes
1
answer
2k
views
Ubuntu SDK: Having difficulty getting images to work in 'QML only app' when deploying to armhf device
When I deploy my QML only program to the desktop using the Ubuntu SDK, images that I have placed in the same folder as Main.qml can be accessed and displayed correctly in the application using source: ...
- 1,778
1
vote
1
answer
284
views
No video shown in Ubuntu Touch QML app video player
I'm trying to play a video in an Ubuntu Touch QML app. The audio plays, but no video is shown.
A minimalistic version:
import QtQuick 2.4
import Ubuntu.Components 1.2
import QtMultimedia 5.5
...
- 11
1
vote
1
answer
122
views
Is qml from the terminal supposed to work on OTA-10.2
Context: Meizu PRO 5 w/ UbuntuTouch OTA-10.2 (unboxed today). Developer Mode, and a rw filesystem.
Question, qml and qmlscene segfault, and have broken symlinks:
phablet@ubuntu-phablet:~$ qmlscene
...
- 121
0
votes
1
answer
323
views
Plasma 5.5.5 NetworkManagement Widget won't load the QML file
I am using Kubuntu 16.04 using Plasma 5.5.5 and Qt version 5.5.1. I was running kernel 5.5.3 and upon upgrade to 5.5.4 the plasma widget for network management seemed to break. So I downgraded to the ...
0
votes
1
answer
331
views
QML MediaPlayer on Ubuntu Touch
Has anyone tried to play movie link (MP4) using QML MediaPlayer on Ubuntu Touch?
Currently I can only get audio but without any video.
Any help would be appreciated.
- 21
1
vote
0
answers
105
views
Go app won't compile in Ubuntu SDK
I'm trying to create a new Ubuntu Touch App with Go and QML using the template in the SDK. The application won't build and gives the following error.
17:41:47: Running command go get -d -u gopkg.in/...
- 1,187
0
votes
1
answer
843
views
QT Creator cannot start ubuntu apps on ubuntu 16.04
If i create a new project with QT Creator (Ubuntu 16.04)
QML App with C++ plugin (cmake)
Framework: ubuntu-sdk-15.04.4-qml
Desktop
Unix-Generator (Desktop) ( CMake works without problems )
I start ...
- 608
1
vote
1
answer
31
views
Non-existent property tools in Page
I have a code which used to work but after I upgraded to (K)ubuntu 16.04 and the latest Ubuntu-sdk, it doesn't work anymore. I get error Cannot assign to non-existent property "tools". This is my code
...
- 181
1
vote
0
answers
81
views
How to use PageHeader on Ubuntu Desktop
I am trying to create an application for my Ubuntu Phone, that should be run on my desktop machine (15.10), too.
It runs fine on my Ubuntu Phone (OTA 10), but when I try to run it on my desktop ...
- 183
0
votes
1
answer
206
views
I need Ubuntu.Components 1.3 for Ubuntu 14.04
Newbie here. Been an IAR baremetal embedded guy for years. Ubuntu transition is painful.
I've installed Ubuntu 14.04. I've installed SDK and Qt Creator and I'm trying to build...anything. ...
- 1
2
votes
1
answer
2k
views
Get the sum of all values in a specific column of a ListView in QML [closed]
How have the sum of a column in a list view?
By example the total cost :
ListModel {
id: fruitModel
ListElement {
...
- 35
1
vote
0
answers
689
views
QML unit testing: running qmltestrunner
I'm on ubuntu 14.04. I installed the Ubuntu SDK IDE. Running a QML App on my Ubuntu phone via the IDE works fine.
I'm following this tutorial on testing https://developer.ubuntu.com/en/apps/qml/...
- 775
0
votes
1
answer
180
views
How to download and parse a gzipped xml file with qml in Ubuntu Touch?
Currency converter tutorial is very useful in explaining how to download and parse an xml file through XmlListModel, but it seems it is not possible to parse a gizipped file in this way.
How could I ...
- 3
1
vote
0
answers
192
views
How to control system volume with C++/QML?
Helo,
I want to develop an app.
It should control the system volume by day time.
I have two questions:
How to change system volume in C++/QML?
How can I run my app as a service that will ...
- 31
1
vote
1
answer
1k
views
Ubuntu SDK Error 'could not find or load the Qt platform plugin "xcb".'
I am trying to write my first ubuntu app using the Ubuntu SDK but keep running into an error. This error turns up both with QML and HTML5 apps. I am trying this just on the template for both project ...
0
votes
1
answer
172
views
Why does XMLHttpRequest used in ubuntu sdk QML application produce "Object path cannot be empty" error
When I deploy my application to my Ubuntu phone via ubuntu SDK I get the following error:
QNetworkManagerInterface::QNetworkManagerInterface(QObject*) nmReply "An AppArmor policy prevents this sender ...
0
votes
1
answer
66
views
Ubuntu SDK IDE quits with Segmentation fault when running example code
I installed Ubuntu SDK from ppa:ubuntu-sdk-team/ppa on Ubuntu 14.04 LTS 64bit. Then I created device kit ubuntu-sdk-15.04 armhf.
When I try to run with CTRL + R example below from: https://developer....
- 1,933
0
votes
1
answer
63
views
Issues with CurrencyConverter qml tutorial
I'm trying to follow the tutorial at https://developer.ubuntu.com/en/apps/qml/tutorials/building-your-first-qml-app/ which states, "Select the Projects > Ubuntu > App with Simple UI template and click ...
- 1
1
vote
1
answer
573
views
ListModel display and if it contains [closed]
I want to know how to display a list if it contains a character.
Example:
ListModel {
id: fruitModel
ListElement {
name: "Apple"
cost: 2.45
}
ListElement {
...
- 35
1
vote
1
answer
642
views
How to create and build snappy apps ?
I am very new to Ubuntu application development. I have to develop an application for snappy Ubuntu. Now I am confused about how to do it? So here are my few questions.
Which language should I use to ...
- 11