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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Ubuntu SDK HTML5 App scan dir

I am making a small HTML5 app because I didn't get into QML yet (and can reuse some foreign code) and I am trying to load a bunch of files from a directory, possibly outside the app dir, but e.g. in ~/...
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13 views

Layouts in Qt doesn't work for me, need help

I am starting Qt player for linux and i am stuck at design. Qt(also Glade) got pretty complicated layout behaviour. So far i did this in java. I want to replicate it in Qt: The problem is that ...
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1answer
9 views

U1Db QML API database update on Application reinstall

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....
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7 views

Do Seahorse and GPG terminal program work standalone?

I have generated a Personal PGP Key with the Seahorse GUI as instructed by Launchpad. I have to manually sign a file for the Ubuntu Code of Conduct but... GPG doesn't find the Key so I need to know if ...
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Tab auto-contemplation and arrows are not working as application user

Tab auto-contemplation and arrows are not working as i logged in as another( application user)user created in linux, but this is working when i login as root user. Thanks for the help!!
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21 views

Problem installing snapd

I like to install snapd but my computer say message like this: Reading package lists... Done Building dependency tree Reading state information... Done E: Unable to locate package snapd how ...
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1answer
24 views

What is the difference between appindicator and AppIndicator3

Ubuntu indicators written in python can be done with two APIs : appindicator and AppIndicator3. What is the difference between them and is there any advantage to using one over the other ?
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1answer
26 views

Realization of the Static links [closed]

I know about Static and Dynamic links. but I have a problem with static link: Static link is a part of application and it compile with application isn't it? But why are there in here? They should be ...
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12 views

how to install IlluminationSoftwareCreator in 16.04

I read here: Unable to install Quickly on Ubuntu 16.04 that quickly is not available on 16.04 (correct me if i'm wrong). I went to: https://github.com/jsebean/IlluminationSoftwareCreator but i dont ...
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17 views

Ubuntu app dev language [duplicate]

I work as a java dev so I know java and I'm learning python. Is this enough for developing ubuntu desktop apps or I need more? I would like to focus on good gui builders and I know kava swing is ...
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14 views

SVG Image as background for Ubuntu Shape in QML Application

I am trying to use an SVG image as the source of an UbuntuShape Object: UbuntuShape { id: mainPageMap height: parent.height ...
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19 views

Create Python objects in QML using pyotherside

I am trying to build a Python backend for my Ubuntu Touch App using Pyotherside. Unfortunately, it is not very intuitive to me. What I want to do is to have a .py file where I define a Python class ...
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1answer
18 views

how to drag a folders or files on an application?

I'd like to enable my users to drop folders (from nautilus) onto our custom applications (chromium based). To my surprise I realize that users have little to no possibility to figure out the path to ...
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1answer
31 views

How do I create a program similar to 'fortune', that can be installed using apt-get install

I am trying to create a program, let's call it abcd like http://linux.die.net/man/6/fortune that can simply be installed like $ sudo apt-get install abcd. Now for the specifics, my program simply is ...
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0answers
23 views

Simple instructions to starting android app development on ubuntu 15.10

I have a 32-bit OS running ubuntu 15.10. For the past few nights, I have been trying to get started with android app development. I tried the old method of using eclipse with the ADT plugin but kept ...
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1answer
30 views

Where can I get the development packages for rsync?

I would like to check the code for RSync but I don't see the development files, maybe I only need GCC and Make ?
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1answer
97 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 ...
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0answers
41 views

Does Ubuntu Touch offer APIs for battery, installed apps enumeration, WiFi and cellular info, OS info, confinement info, etc?

I'm in the progress of porting my existing 'droid app as a native Ubuntu Touch QML + QT5 C++ app. I've tried to find a native Ubuntu Touch or QT5 API for the following goals, but without a luck so far....
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32 views

How to work with QVariant(QJsonDocument) in javascript

I try to write a ubuntu app. My problem is, that i want to fill the ListModel in my qml. ListModel { id: model } i do that by using javascript: fill(database.get()) The database is defined ...
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53 views

How can i build an ubuntu touch app only in c++ (without qml) and with cmake

is there a way to configure a cmake file for building a click-package without qml. i like to start programming in the main function with QApplication and only my own window class. my goal is to write ...
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0answers
31 views

What is the preferred way to store secret data on Ubuntu touch?

I am developing an Ubuntu Touch app which shall connect with an e-mail server. However, I do not know how to store the password so that it is safe, for example from abuse by people buying used phones ...
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1answer
45 views

Which IDE's run on Ubuntu 14.04 and work for Brightscript Development? [closed]

Roku BrightScript is a powerful scripting language that makes it easy and quick to build media and networked applications for embedded devices. The language has integrated support for BrightScript ...
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29 views

Simple Javascript Scope HowTo and Examples

I am trying to develop a simple Scope for Ubuntu Phone (BQ 4.5 particularly). The scope's task should be just to display (and refresh) one web page directly in the scope, i.e. not to open a separate "...
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24 views

Ubuntu SDK validator bug about missing .desktop file from click package

I'm using the latest Ubuntu SDK build (based on Qt Creator 3.5.1) under Ubuntu 16.04 LTS. I'm trying to start a Ubuntu Touch project (QML with C++, using qmake) from scratch, using a built-in example. ...
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28 views

UbuntuUI Html5 api optionselector - how to get and set selected Index? [closed]

I'm trying to use the optionselector in an html5-app. But it seems impossible to get the selected option (index or whatever). I also want to set the index as predefined choice. Here is my html: <...
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1answer
34 views

How to add binary third party libraries in qt creator (Ubuntu-sdk verison of QT-Creator)

I try to write an app for ubuntu unity8 and i use a third party library in that app. My problem is that i would like to use the binary version of that library in my app and not the source files of ...
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1answer
46 views

Create Ubuntu scopes for websites

How do you create a scope in Ubuntu for a simple website wrapper? Please don't judge me I am not a developer, just trying to create a scope for my blog with notifications when a new post is up. ...
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1answer
41 views

What is the common way to save data in a database stucture in the ubuntu sdk

I plan to write an ubuntu app that runs on all ubuntu mobile devices as well on the ubuntu desktop. In this app i have to save some things onto the hard disk via database. What is the common way to ...
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1answer
243 views

SDK: Is bottom edge supported for html5 apps?

I'm planning to write a html5 app (not a webapp) for Ubuntu Touch using Ubuntu-SDK. Is it possible to use the bottom edge navigation in case of html apps?
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1answer
71 views

Ubuntu SDK: Can't deploy to device

I installed the Ubuntu SDK following the instructions given in https://developer.ubuntu.com/en/phone/platform/sdk/installing-the-sdk/ Afterwards I connected my Aquaris M10 (running Ubuntu Touch) and ...
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1answer
43 views

How to create single file application?

I only know how to create .desktop application that is associated with .sh file. I want to create an executable application that doesn't call any file. A simple example would be: an application that ...
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1answer
33 views

How to add qt qmake version 4.8 to qt creator?

I have Qt creator 5.4.1.I have qmake 5.4.1 but I wan to add qmake 4.8 for desktop version.How could I do? I install gcc4.8,but I don't know Is qmake install?(if it installed so where was it?) root@...
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1answer
61 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 ...
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2answers
239 views

Is there a Wine equivalent for Android apps?

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 ...
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2answers
36 views

What archive type are ubuntu click packages?

Deb files and RPMS are at the end of the day zip files with files inside of them in a particular place. I was debugging one of my applications and wanted to look inside of the click package but it ...
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0answers
36 views

I want to compile apps for Ubuntu-Touch. What are some good resources?

I have an Acquarius M10. I want to try to compile x11 apps for use on my tablet. I am especially thinking of things like xournal. What are some good resources for me to start learning about how to do ...
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17 views

Is it possible to run and show the app on a device with snappy core?

The question is as simple as show the app writen for snappy/ubuntu core on a device running snappy/ubuntu core. Like the Raspberry Pi 2. Is this possible or am I better off running Ubuntu Mate on the ...
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67 views

Qt Creator missing Ubuntu Download Manager - how to install?

I am trying to use the Ubuntu Download Manager (https://developer.ubuntu.com/api/apps/qml/sdk-15.04.1/Ubuntu.DownloadManager.DownloadManager/) in Qt Creator by entering the line: import Ubuntu....
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83 views

Build an Ionic application for ubuntu phone as click package

Hello fellows I have the following application: https://github.com/kawai-developers/faster And I try to build it as a scope for ubuntu phone I managed to add the platfrom for ubuntu with the ...
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0answers
28 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/...
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1answer
94 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 ...
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0answers
18 views

Ubuntu SDK unable to start javascript scopes : module “Ubuntu.Thumbnailer” is not installed

I'm trying to create an Ubuntu Phone scope. But I'm not able to run them on the desktop target. I have the following output: Starting /usr/ubuntu-sdk-ide/share/qtcreator/ubuntu/scripts/...
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8 views

Unable to start first template on Quickly

So I'm fairly new to Linux and truly have no idea what I am doing half of the time I do something however I started attempting to use quickly to see if I can make a little note taking program for ...
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1answer
31 views

Automated UI tests for Ubuntu

I wrote automated tests for user interface on Windows using Visual Studio. Is there an equivalent solution for Ubuntu?
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1answer
58 views

Can't build click package (Ubuntu SDK)

Whenever I try run an app via the Ubuntu SDK it gives the following error under the "Compile Output" tab: Makefile:391: recipe for target 'install_desktop_file' failed 09:39:38: The process "/...
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1answer
49 views

Add a python dependency to to a snap package

I am creating a snap app and I need to install a python dependency using pip3 install <lib> How can I do it using snapcraft? Thanks
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13 views

Ubuntu app development with HTML, CSS and JS [duplicate]

I Know HTML,CSS and JavaScript. Is it possible to create a desktop app for Ubuntu with these languages? If it is possible, how? Please suggest some Websites for learning and refer me to some sample ...
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253 views

java not found when running Ubuntu 16.04 desktop snappy app

When running this script from within a Ubuntu 16.04 desktop snappy application I get the message /usr/bin/java not found. Also, the application does not create the files and folders in my Documents ...
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12 views

How to add two alternative dependencies in control file? [duplicate]

The software depends on any of python-wxgtk2.8 or python-wxgtk3.0. What should be in the dependency field in the control file so that any one (which is available) of them is installed? python-wxgtk2....
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1answer
80 views

Are paid and proprietary apps being discontinued?

Previously developers could submit paid and proprietary apps to Ubuntu Software Centre via MyApps section in developer.ubuntu.com. However, the new software centre in Ubuntu 16.04 does not support ...