Realization of work with Long Poll server in VKontakte client for Sailfish OS

Introduction


 
Unfortunately, even now, in the modern world, it is not always possible to take advantage of all the benefits of technology push and sometimes you have to implement workarounds, for example, in the form of Long Poll, which allows you to emulate the mechanism of push notifications. In particular, this need arose in the implementation of client VKontakte for Sailfish OS .
 
 
This article will not consider the principles of interaction with Long Poll VK server - it has a very detailed Documentation , and the basic ...[/h]
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Development for Sailfish OS: displaying graphs using D3.js and QML Canvas

Hello! This article is a continuation of the series of articles devoted to the development of applications for the mobile platform Sailfish OS. This time it's about working with charts in the Sailfish application. We will talk about finding and connecting a library and how we display graphs of mathematical functions. Note that the proposed solution is not limited to the Saiflsh OS platform and is generally suitable for any QtQuick application.
 
QuickQanava .
 
Use the object QML Canvas .
 
Implement your own component in C ++ and connect it to the application.
 
 
The QuickQanava ...
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Development for Sailfish OS: use of geolocation tools

Hello! This article is a continuation of the series of articles devoted to the development of applications for the mobile platform Sailfish OS. This time it will be about how you can implement in the application information about the geographic location of the device, display the map with the current location and the traversed route.
 
Qt Positioning and [leech=http://] Qt Location [/leech] . The first subsystem allows you to get information about the current location of the device, and the second provides a means for displaying this information on the map. In this article, we will only consider the use of QML ...
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As we at Smart Engines taught Sailfish OS

As we at Smart Engines taught Sailfish OSrecognition.  Hello! As you already know by our articles, we at Smart Engines are engaged in recognition, and we try to recognize on anything and in any conditions. We support all popular operating systems: iOS, Android, Windows, Linux, MacOS, Solaris. We support the domestic manufacturer: Elbrus and AstraLinux. Our algorithms are optimized for ARMv7-v? AArch6? x8? x86_6? SPARC, E2K, MIPS. Therefore, when we saw the growing popularity of the Russian operating system Sailfish Mobile OS RUS, we could not bypass it. Sailfish Mobile OS RUS is a POSIX-compatible operating system for mobile devices developed ...
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