Key FeaturesInstall and set up RxJava for Android developmentImplement the Reactive paradigm for Android programming using RxJavaCreate cutting edge real world Android apps with Reactive programming.Book DescriptionWriting code on Android is hard. Writing a high quality code that involves concurrent and parallel tasks is even harder. Ensuring that this code will run without unforeseen race conditions is an the order of magnitude harder. RxJava is the tool that can help write code for such tasks.In this book a novice developer will be introduced to a wide variety of tools that RxJava provides to enable them to produce robust and high-quality code for their asynchronous tasks by building a relatively simple(and high quality) application using advanced RxJava techniques to produce a high quality product.Part 1 of the book will lead the developer through RxJavas initial setup in Android environment. In Part 2, the reader will learn RxJava 2.0 step-by-step by starting off with stock data processing and display.The developer will learn to choose appropriate Schedulers and to use Retrofit library for remote requests.In Part 3, the reader will also learn advanced topics such as adding integration to Twitter to process its streaming data by combining it with stock data.What you will learnSet up an environment for asynchronous that is reactive Android programmingWrite custom observables and higher level abstractionsOrchestrating multiple calls using Reactive programming principlesFetch remote financial data using RxJavaIntegrate and process Twitter streams gracefullyUtilize Reactive programming to develop interactive and responsive Android appsCreate your own application to follow financial stock updates in real-time based on selected companies symbolsIntegrate updates from the Twitter for those companies.About the AuthorTadas Subonis started coding roughly when he was thirteen. Since then, he has programmed with PHP, JavaScript, Python, C++, and Java (the language in which he has probably written the most code). He took up Android relatively recently--around 2014 (after a few false starts in 2012).However, he soon learned that Android lacks a decent support for asynchronous programming (Async Task was/is a joke) while more reckless languages, such as JavaScript, had Promises for a long time. Furthermore, Javas standard library was lacking a decent support for functional programming primitives (map, filter), but that was easily fixable with libraries such as Guava.This lead Tadas to a search for a library that would help him achieve a Promise-like functionality and interface. It didnt take long until he found ReactiveX and its family of implementations (including RxJava) that handle streams in Reactive fashion. It wasnt exactly the flow of Promised-like systems but, soon enough, he realized that its something even more powerful.Since then, he has been using RxJava (and RxKotlin) for his daily Android programming. The quality of the code (the lack of bugs, readability, and maintainability) has improved ten-fold. Giving a quick crash-free experience for the users of your application is a must these days when competition for user attention on app marketplaces is getting fiercer and fiercer.Table of ContentsBuilding your First “Hello World” RxJava ApplicationUnderstanding the Basics of RxJavaLearning to use Retrofit by fetching financial Data Integrating RxJava 1.0 with RxJava 2.0Writing data to SQLite and SchedulersError Handling and SQLite Data ReadingIntegrating RxJava with Activity LifecycleWriting Custom ObservablesAdvanced Observable Flows ExplainedHigher Level AbstractionsBasics of Subjects & Preference PersistenceLearning to Read Marble Diagrams