Asynchronous Android Programming

Asynchronous Android Programming

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 ...

Author: Helder Vasconcelos

Publisher: Packt Publishing Ltd

ISBN: 9781785885518

Category: Computers

Page: 394

View: 682

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.
Categories: Computers

Asynchronous Android Programming

Asynchronous Android Programming

Unlock the power of multi-core mobile devices to build responsive and reactive Android applicationsAbout This Book- Construct scalable and performant applications to take advantage of multi-thread asynchronous techniques- Explore the high ...

Author: Helder Vasconcelos

Publisher: Packt Publishing

ISBN: 1785883240

Category: Computers

Page: 394

View: 922

Categories: Computers

Asynchronous Android

Asynchronous Android

No prior knowledge of concurrency and asynchronous programming is required. This book is also targeted towards Java experts who are new to Android.

Author: Steve Liles

Publisher: Packt Publishing Ltd

ISBN: 9781783286881

Category: Computers

Page: 146

View: 410

Concurrent Programming on Android is a step-by-step guide that builds a complete picture of the concurrency constructs available on the Android platform. This book is for Android developers who want to learn about the advanced concepts of Android programming. No prior knowledge of concurrency and asynchronous programming is required. This book is also targeted towards Java experts who are new to Android.
Categories: Computers

Reactive Android Programming

Reactive Android Programming

Make the most of asynchronous android programmingAbout This Book* Install and set up RxJava for Android development* Implement the Reactive paradigm for Android programming using RxJava* Create cutting edge real world Android apps with ...

Author: Tadas Subonis

Publisher:

ISBN: 1787289907

Category: Computers

Page: 256

View: 776

Make the most of asynchronous android programmingAbout This Book* Install and set up RxJava for Android development* Implement the Reactive paradigm for Android programming using RxJava* Create cutting edge real world Android apps with Reactive programming.Who This Book Is ForAre you an android developer trying to figure out how to use reactive paradigm for your programming needs? If yes then this is the book for you. No previous knowledge of RxJava is required.What You Will Learn* Set up an environment for asynchronous that is reactive Android programming* Write custom observables and higher level abstractions* Orchestrating multiple calls using Reactive programming principles* Fetch remote financial data using RxJava* Integrate and process Twitter streams gracefully* Utilize Reactive programming to develop interactive and responsive Android apps* Create your own application to follow financial stock updates in real-time based on selected companies" symbols* Integrate updates from the Twitter for those companies.In DetailWriting 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 RxJava's 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.Style and approachThis book is a step by step practical guide which will essentially teach you to set up, implement, and debug Reactive Android Code with ease.
Categories: Computers

Study and Refactoring of Android Asynchronous Programming

Study and Refactoring of Android Asynchronous Programming

To avoid unresponsiveness, a core part of mobile development is asynchronous programming.

Author:

Publisher:

ISBN: OCLC:910967688

Category: Application software

Page: 12

View: 786

To avoid unresponsiveness, a core part of mobile development is asynchronous programming. Android provides several async constructs that developers can use. However, developers can still use the inappropriate async constructs, which result in memory leaks, lost results, and wasted energy. Fortunately, refactoring tools can eliminate these problems by transforming async code to use the appropriate constructs. In this paper we conducted a formative study on a corpus of 611 widely-used Android apps to map the asynchronous landscape of Android apps, understand how developers retrofit asynchrony, and learn about barriers encountered by developers. Based on this study, we designed, implemented, and evaluated ASYNCDROID, a refactoring tool which enables Android developers to transform existing improperly-used async constructs into correct constructs. Our empirical evaluation shows that ASYNCDROID is applicable, accurate, and saves developers effort. We submitted 30 refactoring patches, and developers consider that the refactorings are useful.
Categories: Application software

Reactive Programming in Kotlin

Reactive Programming in Kotlin

About This Book Learn how to solve blocking user experience with Reactive Programming and get deep insights into RxKotlin Integrate Reactive Kotlin with Spring and build fantastic Android Apps with RxKotlin and RxAndroid Build reactive ...

Author: Rivu Chakraborty

Publisher: Packt Publishing Ltd

ISBN: 9781788470254

Category: Computers

Page: 322

View: 195

Learn how to implement Reactive Programming paradigms with Kotlin, and apply them to web programming with Spring Framework 5.0 and in Android Application Development. About This Book Learn how to solve blocking user experience with Reactive Programming and get deep insights into RxKotlin Integrate Reactive Kotlin with Spring and build fantastic Android Apps with RxKotlin and RxAndroid Build reactive architectures that reduce complexity throughout the development process and make your apps(web and Android) scalable Who This Book Is For This book is for Kotlin developers who would like to build fault-tolerant, scalable, and distributed systems. A basic knowledge of Kotlin is required, but no prior knowledge of reactive programming. What You Will Learn Learn about reactive programming paradigms and how reactive programming can improve your existing projects Gain in-depth knowledge in RxKotlin 2.0 and the ReactiveX Framework Use RxKotlin with Android Create your own custom operators in RxKotlin Use Spring Framework 5.0 with Kotlin Use the reactor-kotlin extension Build Rest APIs with Spring,Hibernate, and RxKotlin Use testSubscriber to test RxKotlin applications Use backpressure management and Flowables In Detail In today's app-driven era, when programs are asynchronous, and responsiveness is so vital, reactive programming can help you write code that's more reliable, easier to scale, and better-performing. Reactive programming is revolutionary. With this practical book, Kotlin developers will first learn how to view problems in the reactive way, and then build programs that leverage the best features of this exciting new programming paradigm. You will begin with the general concepts of Reactive programming and then gradually move on to working with asynchronous data streams. You will dive into advanced techniques such as manipulating time in data-flow, customizing operators and provider and how to Use the concurrency model to control asynchronicity of code and process event handlers effectively. You will then be introduced to functional reactive programming and will learn to apply FRP in practical use cases in Kotlin. This book will also take you one step forward by introducing you to spring 5 and spring boot 2 using Kotlin. By the end of the book, you will be able to build real-world applications with reactive user interfaces as well as you'll learn to implement reactive programming paradigms in Android. Style and Approach Loaded with numerous code examples and real-life projects, this book helps you delve into Reactive Programming with Kotlin, and apply it to real-world Spring-web and Android projects, thus making all your apps reactive.
Categories: Computers

Professional Android Programming with Mono for Android and NET C

Professional Android Programming with Mono for Android and  NET   C

This code is contained in WebServices\WebServices\Activity1.cs In this example, a query is made against the Twitter API to get a user's timeline. The programmatic steps are as follows: 1. An asynchronous request is made against the ...

Author: Wallace B. McClure

Publisher: John Wiley & Sons

ISBN: 9781118235812

Category: Computers

Page: 504

View: 429

A one-of-a-kind book on Android application development with Mono for Android The wait is over! For the millions of .NET/C# developers who have been eagerly awaiting the book that will guide them through the white-hot field of Android application programming, this is the book. As the first guide to focus on Mono for Android, this must-have resource dives into writing applications against Mono with C# and compiling executables that run on the Android family of devices. Putting the proven Wrox Professional format into practice, the authors provide you with the knowledge you need to become a successful Android application developer without having to learn another programming language. You'll explore screen controls, UI development, tables and layouts, and MonoDevelop as you become adept at developing Android applications with Mono for Android. Answers the demand for a detailed book on the extraordinarily popular field of Android application development Strengthens your existing skills of writing applications and shows you how to transfer your talents to building Android apps with Mono for Android and .NET/C# Dives into working with data, REST, SOAP, XML, and JSON Discusses how to communicate with other applications, deploy apps, and even make money in the process Professional Android Programming with Mono for Android and .NET/C# gets you up and running with Android app development today.
Categories: Computers

Android Programming Concepts

Android Programming Concepts

onOptionsItemSelected(item); } 137 } 6.10 AsyncTasks In general, when performing parallel tasks running longer than a few seconds, it is best to use Java threads rather than the UI thread. As an alternate solution, Android provides an ...

Author: Trish Cornez

Publisher: Jones & Bartlett Publishers

ISBN: 9781284070705

Category: Computers

Page: 834

View: 880

Using a hands-on, student-friendly approach, Android Programming Concepts provides a comprehensive foundation for the development of mobile applications for devices and tablets powered by Android. This text explores Android Java and the Android SDK, the implementation of interactivity using touchscreen gesture detection and sensors, and current concepts and techniques for constructing mobile apps that take advantage of the latest Android features. Each chapter features a collection of well-designed and classroom tested labs that provide clear guidance of Android concepts. Each lab is geared toward one or two specific Android concepts, which eliminated distractions and gives the reader better focus on the concepts at hand.
Categories: Computers

Android Programming for Developers

Android  Programming for Developers

Develop your own responsive, reactive, and ready-to-deploy Android applicationsAbout This Book* Kick-start your Android programming career or just have fun publishing apps to the Google Play marketplace* Explore the high-level Android ...

Author: John Horton

Publisher:

ISBN: 1787123693

Category: COMPUTERS

Page: 1152

View: 993

Develop your own responsive, reactive, and ready-to-deploy Android applicationsAbout This Book* Kick-start your Android programming career or just have fun publishing apps to the Google Play marketplace* Explore the high-level Android asynchronous constructs available on the Android SDK* Learn the internals of a game engine by building oneWho This Book Is ForIf you are an iOS developer or any other developer/programmer and you want to try your hands on developing applications on the Android platform, this course is for you. No prior programming experience is needed as this course will guide you right from the beginning to the advanced concepts of Android programming.What You Will Learn* Mastering the fundamentals of coding Java for Android* Installing and setting up your Android development environment* Building functional user interfaces with the Android Studio visual designer* Adding user interaction, data captures, sound, and animation to your apps* Managing your apps' data using the built-in Android SQLite database* Getting familiar with the android process model and low-level concurrent constructs delivered by the Android SDK* Interacting with nearby devices over Bluetooth and WiFi communications channels* Creating and composing tasks with RxJava to execute complex asynchronous work in a predictable way* Handling user inputs, from virtual joysticks to gamepads* Implementing collision detection using different techniques and discover how to optimize it for complex games* Building, deploying, and publishing real Android applications to the Google Play marketplaceIn DetailAndroid is the most popular OS in the world. There are millions of devices accessing tens of thousands of applications. It is many people's entry point into the world of technology. The Android: Programming for Developers course will take you on a journey to become an efficient Android programmer by thoroughly understanding the key concepts of Android programming and develop market-ready applications.The course begins with helping you create Android applications from scratch. The first module, Android Programming for Beginners, introduces you to all the fundamental concepts of programming in an Android context, from the Java basics to working with the Android API. At the completion of this module, you'll be ready to start building your own custom applications in Android and Java.After getting familiar with the basic programming concepts, the second module, Asynchronous Android Programming, shows you how to make your applications more reliable. This will be achieved using high-level and advanced asynchronous techniques and concepts. Through this module, you will learn to construct scalable and performant applications to take advantage of multi-thread asynchronous techniques.With a good grasp on the basics, you move on the final module, Mastering Android Game Development. This progressive module will help you learn to use animations and particle systems to provide a rich experience. By the end of the course, you will create beautiful, responsive, and reusable UIs by taking advantage of the Android SDK.Style and approachThe comprehensive course will run you through the basic concepts for newbies, move on to the UI design, teach you game development on Android, and finally make you proficient in application development on Android. Each of these aspects has been covered in individual modules to help you develop your skills after the completion of a module and get ready for the next.
Categories: COMPUTERS

Beginning Android Programming with Android Studio

Beginning Android Programming with Android Studio

Also, notice that you call the doSomethingRepeatedly() method directly in the onStartCommand() method, without needing to wrap it in a subclass of the AsyncTask class. This is because the TimerTask class itself implements the Runnable ...

Author: Jerome DiMarzio

Publisher: John Wiley & Sons

ISBN: 9781118707425

Category: Computers

Page: 456

View: 277

A hands-on introduction to the latest release of the Android OS and the easiest Android tools for developers As the dominant mobile platform today, the Android OS is a powerful and flexible platform for mobile device. The new Android 7 release (New York Cheesecake) boasts significant new features and enhancements for both smartphone and tablet applications. This step-by-step resource takes a hands-on approach to teaching you how to create Android applications for the latest OS and the newest devices, including both smartphones and tablets. Shows you how to install, get started with, and use Android Studio 2 - the simplest Android developer tool ever for beginners Addresses how to display notifications, create rich user interfaces, and use activities and intents Reviews mastering views and menus and managing data Discusses working with SMS Looks at packaging and publishing applications to the Android market Beginning Android Programming with Android Studio starts with the basics and goes on to provide you with everything you need to know to begin to successfully develop your own Android applications.
Categories: Computers