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Introduction The most important question when we create a new Android application from scratch is which architecture should we choose. Developers can choose between MVC, MVP, MVI and MVVM (among others). These architectural patterns are popular for Android development. For years, developers had to implement from scratch, by themselves, the application skeleton without any SDK support. After many years, at the annual Google I/O event, in May 2017, Google presented the Architecture Guide, in which object lifecycle is the most important functionality to support from the point of view of Android OS. During that I/O, Google presented some examples of Android Architecture Blueprints.
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Developers at Netguru improve their skills every day. We are trying to be better and better, and thus we always look for and test new languages. Besides running internal workshops we look for knowledge online. We asked our team members what podcasts they listen to and youtube channels they watch to improve their coding skills. Their recommendations are:
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Introduction Nowadays, IoT sensors are almost everywhere and they can sense information that may affect privacy or reveal information that wasn’t intended if it leaks. Particularly, Wireless Sensor Networks(later called WSN) are used extensively in many applications related with health monitoring, environmental monitoring, military purposes and home automation. Security of the privacy rights and the system from malicious attacks is vital when talking about this kind of applications because of the information they sense, plus the combined computational power. Unfortunately, since individually they are not wealthy regarding computational power and battery life, WSNs are not able to deal with traditionals cryptography algorithms to secure data transmission. That’s why other methods and algorithms must be designed and used for IoT systems.
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One of the most important things in mobile development is secure communication, especially between the app and its backend server. Currently, the most common architecture of web services is REST based on HTTP. The best protection method for this model of communication is the TLS/SSL standard. It can be combined with the HTTP protocol to create an encrypted variant called HTTPs. HTTPs ensures safe, encrypted communication channels between client apps and the backend server. Moreover, implementing this security feature is very simple on Android. You just need to watch out for some common pitfalls.
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In our previous article from the Pragmatic iOS Development series, we discussed the Model View Controller pattern and why (in my opinion, unrightfully) it is criticised within the community. I also mentioned two things about selecting perfect architecture for your project. The first thing was that there’s no happy medium that fits all of the use cases. Secondly, in the last sentence of the article, I gave a sneak peek of the architecture you’re going to fall love with, MVA. But there’s one thing I lied about: that there’s no architectural approach you can fit to any project you can think of. The truth is, such approach exists. And hey, good news: we’re going to focus on it today, and I’m going to tell you how to take advantage of this approach.
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MQTT (the acronym that, apparently, shouldn’t be expanded to Message Queue Telemetry Transport anymore) is a communication protocol focused on energy efficiency, data-transfer minimization, and assurance of delivery. These three qualities make it the perfect choice for any Internet of Things projects where the Internet connection is given but can be unreliable. Definitions aside, we can use MQTT for:
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On March 30, the long-awaited iOS 11.3 update was released, with support for basic PWA features on iPhones and iPads, such as service workers and app manifest files. Although it is great that these are finally supported, the user experience of Progressive Web Applications on iOS is still not perfect.
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The ZigBee or ZigBee/IEEE 802.15.4 protocol is a specification created for wireless networking. It includes hardware and software standard design for WSN (Wireless sensor network) requiring high reliability, low cost, low power, scalability and low data rate. ZigBee-style self-organizing ad-hoc digital radio networks were conceived in the 1990s, but the IEEE 802.15.4-2003/ZigBee specification was ratified on December 14, 2004. And only half year later the ZigBee Alliance announces availability of Specification 1.0 (on June 13, 2005).
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Two months ago Google released Android 8.1 for its branded devices like Pixel or Nexus. Last month we got an update for Android 8.0 from major smart devices vendors like Samsung. So as we can see, the full enrollment of the Oreo hasn’t been implemented yet. However, developer preview of Android P was released last Wednesday. So, now we have the first preview of the new Google’s child - Android P. The first developers’ preview is now live so we have decided to review the improvements and features that provides and creates short list of the coolest ones. Check out what Android P hides under the hood!
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Welcome to the final episode of the tour around the Android platforms. In the previous part we focused on Android Wear. We explained how to prepare your project and we underlined the relevant usability requirements. In this article we will share with you the next part of the crucial considerations of developing for Android Auto. The platform was announced in 2014 at Google I/O. The idea behind it is to help drivers focus more on the road and less on their smartphones.
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