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A couple of assumptions for this article: To fully understand this article reader should have at least basic knowledge about Dagger 2 library. To simplify things, later on, I will refer to Dagger 2 library just as Dagger. I used here as example MVP architecture but any other could be used with either of those libraries.
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Have you ever wondered how will your code scale up or how runtime of your function will change depending on the input size? If yes, you are in the right place and in the next few minutes, you will learn how to look at your code in terms of performance and scalability. 
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WebSockets on Android Made Easy

After working for a while with WebSockets in our internal project I would like to share my thoughts and experience with you.
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Android application design problems During the development of an Android application I had to implement a custom design system where:
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Quick Review - Indoorway SDK

Indoorway SDK Beacons have been constantly gaining popularity since 2013 when Apple introduced the iBeacon technology in 2013, and Google their Eddystone in 2015. Today, beacons are used in airports, stadiums, and shopping malls. Mobile marketers are showing more and more interest in this technology every year, and today it is valued at about 98 billion dollars.
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🎄 Hello, Hello! 🌲 🎄🌲🌲🎄 🌲🎄🎄🎄 I’d like to welcome you all to the Christmas (and the first ever) release of our IoT newsletter. In today's edition there is a new exciting update for smart watches, sound powered glasses, some next year predictions and a lot of Christmas joy. Come on for some reading.
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Debate about „cross-platform vs native” rages lastly due to Google’s Flutter. Google is trying to revolutionize mobile development, in the meantime, JetBrains is slowly trying to develop some „worth to consider" solution. Let’s be honest, Java is popular... very popular and in the future, Kotlin can be the next big thing, as the popularity is expected to grow as it is now. According to Stack Overflow's 2018 Annual Developer Survey Kotlin is the second beloved language among Developers.
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Top 5 design patterns in OOP with TypeScript's implementation - code included.   We all use design patterns in our code. Sometimes, it's unnecessary, but it could give a nice and understandable structure to your architecture. Since TypeScript is getting more popular, I decided to show some of the popular patterns with its implementation.
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There are many techniques for analyzing images for mobile apps. Lot of solution offer many different features, and finding solution which perfectly match your needs may be difficult task. For one of our internal project, we need to analyse image for getting information about shapes (like rectangles, triangles and so on) which match our requirements. To do it, we had to check some popular solutions for images processing. Our solution had to be compatible with both Android and iOS platform, because we did not want to implement our algorithm twice, and we would like to have exactly the same result on both platforms. You can see results of our research here:
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VR Technologies for Mobile Apps

This is the second part of our story and research how to create a VR app. The first one, here, was about linking OpenCV, which we need for a certain reason, and creating a framework with shared code. Now, let's move straight to the VR. The very first question was "how to create and show 3D and/or VR world in a native app?". If you are a game developer, then it may sound silly. We are not, but we had a knowledge about a few solutions, so we took a deeper look at them.
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