Android Development Concurrent Programming With Java

Make your Android apps more efficient by managing processes in multiple threads. Although threads share resources, you can divide work so that tasks can be performed simultaneously. Still, programming multiple threads (aka concurrent programming) can be a challenge even for experienced developers. This course introduces concurrent programming concepts and techniques specific to Android. First, discover how to create and start simple background threads, and how to use handlers to manage a thread's message queue. Then, learn various methods for optimizing the scheduling and performance of background tasks in Android with AsyncTask, intent services, and the JobScheduler API. Plus, explore tools that help you implement multithreading for different tasks in Android: Loader, for asynchronous data loading, and the open-source API Retrofit, for making HTTP requests. Note: To get the most out of this course, you should be comfortable programming with Java, and should understand the most basic skills that are needed to build Android apps with the Android SDK and Android Studio.

Make your Android apps more efficient with concurrent programming. Learn how to create and manage background threads using intent services, AsyncTask, JobScheduler, and a few useful Android APIs.

Developing applications for the Android mobile operating system can seem daunting, particularly if it requires learning a new programming language: Kotlin, now Androidâ??s officialdevelopment language. With this practical book, Android developers will learn how to make the transition from Java to Kotlin, including how Kotlin provides a true advantage for gaining control over asynchronous computations. Authors Pierre-Olivier Laurence, Amanda Hinchman-Dominguez, G. Blake Meike, and Mike Dunn explore implementations of the most common tasks in native Android development, and show you how Kotlin can help you solve concurrency problems. With a focus on structured concurrency, a new asynchronous programming paradigm, this book will guide you through one of Kotlin's most powerful constructs, coroutines. Learn about Kotlin essentials and the Kotlin Collections Framework Explore Android fundamentals: the operating system and the application container and its components Learn about thread safety and how to handle concurrency Write sequential, asynchronous work at a low cost Examine structured concurrency with coroutines, and learn how channels make coroutines communicate Learn how to use flows for asynchronous data processing Understand performance considerations using Android profiling tools Use performance optimizations to trim resource consumption

Write Apps for Maximum Performance and Responsiveness “Threading and concurrency are as important in mobile as they are in large, distributed systems. This book does an excellent job of re-introducing us to the basic concepts and describing how to apply them to the Android framework. Even the most experienced Android developer should pick up at least a few tricks from these pages.” —Dave Smith, PE, Google Developer Expert for Android Mastering concurrency is critical to developing software with superior performance and responsiveness. This is especially true for Android, where interruptions are frequent and abrupt, and in order to be correct, programs must be aware of component and process lifecycles in addition to being thread safe. You need a deep, Android-specific understanding of concurrency—and Android Concurrency delivers it. This guide in Addison-Wesley’s Android Deep Dive series for experienced Android developers helps you leverage today’s multi-core processors and heavily cached architectures, as well as major improvements built into Android 5 (Lollipop). Top Android developer and consultant Blake Meike strips the magic and mystery from concurrent programming and presents intensely practical solutions for everything from inter-thread communication to network communication. Meike introduces a simple but powerful architectural framework you can use to address new issues whenever they arise, and offers expert guidance for debugging even highly complex concurrency issues. Android Concurrency combines in-depth knowledge, proven patterns and idioms, and world-class insights for avoiding performance-killing mistakes. For serious Android developers, it will be an indispensable resource. You will • Gain new clarity about what concurrency really is, and how concurrent processes work • Master best practices for writing concurrent code that’s more robust and less susceptible to weird, hard-to-diagnose errors • Review the Java concurrency mechanisms Android’s constructs are built upon • Shape an approach to concurrency that reflects the unique characteristics of the Android environment • Avoid widespread misconceptions that lead Android developers into trouble • Make the most of AsyncTask—but only when it’s the right tool for the job • Leverage the powerful, lightweight Looper/Handler framework to support scheduled, asynchronous tasks and execute many message types • Use the Android Service component to separate business logic from UI • Understand the differences between started and bound services and use them effectively for intra- and inter-process communication • Perform scheduled tasks, including tasks requiring polling and explicit scheduling • Track down problems via static analysis, annotations, and assertions

Explore Android's core building blocks and APIs in depth with this authoritative, updated guide to create compelling apps that work on a full range of Android devices, using proven approaches to app design and implementation.

Software -- Programming Languages.

Unlock the power of multi-core mobile devices to build responsive and reactive Android applications About This Book Construct scalable and performant applications to take advantage of multi-thread asynchronous techniques Explore the high-level Android asynchronous constructs available on the Android SDK Choose the most appropriate asynchronous technique to implement your next outstanding feature Who This Book Is For This book is for Android developers who want to learn how to build multithreaded and reliable Android applications using high-level and advanced asynchronous techniques and concepts. No prior knowledge of concurrent and asynchronous programming is required. This book will also be great for Java experts who are new to Android. Whether you are a beginner at Android development or a seasoned Android programmer, this book will guide you through the most basic and advanced asynchronous constructs used in Android programming. What You Will Learn Get familiar with the android process model and low-level concurrent constructs delivered by the Android SDK Use AsyncTask and loader framework to load data in the background, delivering progress results in the meantime Create services that interact with your activity without compromising the UI rendering Learn the working of Android concurrency on the Native Layer Interact with nearby devices over Bluetooth and WiFi communications channels Create and compose tasks with RxJava to execute complex asynchronous work in a predictable way Get accustomed to the use of the Android Loader construct to deliver up-to-date results In Detail Asynchronous programming has acquired immense importance in Android programming, especially when we want to make use of the number of independent processing units (cores) available on the most recent Android devices. With this guide in your hands you'll be able to bring the power of Asynchronous programming to your own projects, and make your Android apps more powerful than ever before! To start with, we will discuss the details of the Android Process model and the Java Low Level Concurrent Framework, delivered by Android SDK. We will also guide you through the high-level Android-specific constructs available on the SDK: Handler, AsyncTask, and Loader. Next, we will discuss the creation of IntentServices, Bound Services and External Services, which can run in the background even when the user is not interacting with it. You will also discover AlarmManager and JobScheduler APIs, which are used to schedule and defer work without sacrificing the battery life. In a more advanced phase, you will create background tasks that are able to execute CPU-intensive tasks in a native code-making use of the Android NDK. You will be then guided through the process of interacting with remote services asynchronously using the HTTP protocol or Google GCM Platform. Using the EventBus library, we will also show how to use the Publish-Subscribe software pattern to simplify communication between the different Android application components by decoupling the event producer from event consumer. Finally, we will introduce RxJava, a popular asynchronous Java framework used to compose work in a concise and reactive way. Asynchronous Android will help you to build well-behaved applications with smooth responsive user interfaces that delight the users with speedy results and data that's always fresh. Style and approach This easy-to-follow guide is full of code examples of real-world use cases. Each asynchronous topic is explained sequentially, from the most basic and low-level to the more advanced, using concise and effective language. Some lifecycle flows and concepts feature illustrations to help you understand the complex interactions between Android entities.

Make your Android apps more efficient with concurrent programming. Learn how to create and manage background threads using intent services, AsyncTask, JobScheduler, and a few useful Android APIs.

Gain the essential Java language skills necessary for using the Android SDK platform to build Java-based Android apps. This book includes the latest Java SE releases that Android supports, and is geared towards the Android SDK version 10. It includes new content including JSON documents, functional programming, and lambdas as well as other language features important for migrating Java skills to Android development. Android is still the world's most popular mobile platform and because this technology is still mostly based on Java, you should first obtain a solid grasp of the Java language and its APIs in order to improve your chances of succeeding as an effective Android apps developer. Learn Java for Android Development, 4th Edition helps you do that. Each of the book’s chapters provides an exercise section that gives you the opportunity to reinforce your understanding of the chapter’s material. Answers to the book’s more than 700 exercises are provided in an appendix. A second appendix provides a significant game-oriented Java application, which you can convert into an Android app. Once you finish, you will be ready to begin your Android app development journey using Java. What You Will Learn Discover the latest Java programming language features relevant to Android SDK development Apply inheritance, polymorphism, and interfaces to Android development Use Java collections, concurrency, I/O, networks, persistence, and data access in Android apps Parse, create, and transform XML documents and explore microservices Migrate your Java skills for mobile development using the Android platform Who This Book Is For Programmers with at least some prior Java programming experience looking to get into mobile Java development with the Android platform.