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Serializable vs Parcelable

We all have heard about the Parcelable vs Serializable wars, but since the @Parcelize annotation will lose its experimental status any day now, I decided to revisit articles that compare the speed of both these implementations. On almost every single one of them we can clearly see that Parcelable crushes Serializable in terms of speed. But implementing Parcelable always seemed like a lot of additional work. And here comes Kotlin with its magical annotations.
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Recently while cruising through the internet I came across the NavigationAdvancedSample created by Google. As I was using a navigation component in my current project, I wanted to check it out, and it turned out to be a great decision. Google provided us with a very nice extension function. This function allows us to attach multiple navigation graphs to the BottomNavigationView. Let’s jump into implementation.
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When I first looked at Dart with Flutter some years ago I must say I was very skeptic about it. There were so many things that I loved in new languages like Kotlin that Dart didn’t have. The nesting Widgets to the point that code looked like pyramids from Egipt was just… but right now I think it is on a better way than ever to become one of my favorite. Let me explain why.
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Some time ago I came across one problem related to the correct recreation of the state in the view. I tested various solutions on a separate project to learn about possible solutions. However, before I describe the exact problem that I came across, I will start with the complete basics. At the very beginning, let's try to answer the question - why should we actually save the state of the views?
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In order to make the syntax for loop iteration and control flow statements safe and natural to read, Kotlin standard library provides a concept of ranges. In this post we are going to explore how to use range expressions in action. First, we are going to discover a built-in ranges implementations for the integral types like Char, Int or Long. Next, we are going to implement a custom progression for the LocalDate class.
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PWA (Progressive Web Apps) are with us for some time now. Yet, each time I was trying to explain it to our clients the same question appeared, “Will my users be able to install the app using App stores?”. So far, the anwser was no, but this changed with Chrome 72 and a new feature called TWA (Trusted Web Activities). 
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One of the many reasons why it is believed that the development of mobile applications is long and tedious is the problem with lack of a specific architecture for mobile apps, especially for Android. The situation has been improving for some time thanks to the different approach of Google, which started suggesting a certain architecture for Android apps. Google is now suggesting to use the MVVM architecture. However, the problem still exists.
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Setting Up a Flutter Project

Flutter is a new cross-platform framework, developed by Google, which allows creating beautiful user interfaces that run from a single code base on iOS and Android. We started to learn Flutter while it was in beta release and we learned a lot. In this article, we want to share some fresh tips and thoughts about Flutter development.
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Philips Hue in Android

Over the last years, we have been able to observe the growth of the Internet of Things market. Currently, a range of stores offer many "smart" products, from refrigerators, through air purifiers, to kettles.
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In this article, I will cover how we connected to our Android project, shared (between iOS and Android) library written in C++. If you don't know anything about Android NDK (native development kit) or C++, you can still learn from this article the overall method. That could help your team write logic once and share it. So let’s begin from the library file structure. In the image below we can see that we have three subfolders in our library.
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