Get started with creating intuitive native user interfaces on Android platforms Key Features Understand the difference between the imperative (Android View) and declarative (Jetpack Compose) approach Learn about the structure of a Compose app, built-in Compose UI elements, and core concepts such as state hoisting and composition over inheritance Write, test, and debug composable functions Book DescriptionJetpack Compose is Android’s new framework for building fast, beautiful, and reliable native user interfaces. It simplifies and significantly accelerates UI development on Android using the declarative approach. This book will help developers to get hands-on with Jetpack Compose and adopt a modern way of building Android applications. The book is not an introduction to Android development, but it will build on your knowledge of how Android apps are developed. Complete with hands-on examples, this easy-to-follow guide will get you up to speed with the fundamentals of Jetpack Compose such as state hoisting, unidirectional data flow, and composition over inheritance and help you build your own Android apps using Compose. You'll also cover concepts such as testing, animation, and interoperability with the existing Android UI toolkit. By the end of the book, you'll be able to write your own Android apps using Jetpack Compose.What you will learn Gain a solid understanding of the core concepts of Jetpack Compose Develop beautiful, neat, and immersive UI elements that are user friendly, reliable, and performant Build a complete app using Jetpack Compose Add Jetpack Compose to your existing Android applications Test and debug apps that use Jetpack Compose Find out how Jetpack Compose can be used on other platforms Who this book is forThis book is for any mobile app developer looking to understand the fundamentals of the new Jetpack Compose framework and the benefits of native development. A solid understanding of Android app development, along with some knowledge of the Kotlin programming language, will be beneficial. Basic programming knowledge is necessary to grasp the concepts covered in this book effectively.

Build Beautiful Apps With Jetpack ComposeJetpack Compose is hyping up everyone in the Android UI toolkit world. This completely new and modern solution to building declarative user interfaces provides more opportunity than ever to create beautiful, reactive and animated apps.However, because of its new status, Jetpack Compose is lacking one of the most important pieces of successful software: detailed documentation. That's why we've prepared a whole book's worth of documentation for you!Jetpack Compose By Tutorials is here to help, by showing you exactly how Compose works, what its fundamental components are and how you can use them to build complex real-world apps!Who this book is forThis book is for all Android developers who have experience with the legacy UI Toolkit through XML and View components, but who are looking for a fresh, reusable, clean and easy-to-use solution to reduce their boilerplate code while building stunning user interfaces.Topics covered in Jetpack Compose by TutorialsFundamentals: Core Jetpack Compose elements and functionsCombining components: Mixing different layouts and building beautiful interfacesState Management: State wrappers, LiveData observables and UI recompositionUI Styling: Modifiers for size, shape, colors, background, padding and alignmentUser Interaction: Different click, touch and scroll listeners and their handlersAnimations: State changes, value animations and complex transitionsUI Testing: Learn how to test your Jetpack Compose codeAccessibility: Learn how to support Accessibility using Jetpack ComposeOne thing you can count on: After reading this book, you'll be prepared to tackle any design specification and build it in your Android apps using Jetpack Compose. You'll make your apps really stand out by adding different modifiers and Material Design components, as well as animations.

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.

Android Programming: The Big Nerd Ranch Guide is an introductory Android book for programmers with Java experience. Based on Big Nerd Ranch's popular Android Bootcamp course, this guide will lead you through the wilderness using hands-on example apps combined with clear explanations of key concepts and APIs. This book focuses on practical techniques for developing apps compatible with Android 4.1 (Jelly Bean) and up, including coverage of Lollipop and material design. Write and run code every step of the way, creating apps that integrate with other Android apps, download and display pictures from the web, play sounds, and more. Each chapter and app has been designed and tested to provide the knowledge and experience you need to get started in Android development. Big Nerd Ranch specializes in developing and designing innovative applications for clients around the world. Our experts teach others through our books, bootcamps, and onsite training. Whether it's Android, iOS, Ruby and Ruby on Rails, Cocoa, Mac OS X, JavaScript, HTML5 or UX/UI, we've got you covered. The Android team is constantly improving and updating Android Studio and other tools. As a result, some of the instructions we provide in the book are no longer correct. You can find an addendum addressing breaking changes at: https://github.com/bignerdranch/AndroidCourseResources/raw/master/2ndEdition/Errata/2eAddendum.pdf.

This book aims to teach you how to build Android applications using Jetpack Compose 1.3, Android Studio Flamingo (2022.2.1), Material Design 3, and the Kotlin programming language. The book begins with the basics by explaining how to set up an Android Studio development environment. The book also includes in-depth chapters introducing the Kotlin programming language, including data types, operators, control flow, functions, lambdas, coroutines, and object-oriented programming. An introduction to the key concepts of Jetpack Compose and Android project architecture is followed by a guided tour of Android Studio in Compose development mode. The book also covers the creation of custom Composables and explains how functions are combined to create user interface layouts, including row, column, box, and list components. Other topics covered include data handling using state properties, key user interface design concepts such as modifiers, navigation bars, and user interface navigation. Additional chapters explore building your own reusable custom layout components. The book covers graphics drawing, user interface animation, transitions, Kotlin Flows, and gesture handling. Chapters also cover view models, SQLite databases, Room database access, the Database Inspector, live data, and custom theme creation. Using in-app billing, you will also learn to generate extra revenue from your app. Finally, the book explains how to package up a completed app and upload it to the Google Play Store for publication. Along the way, the topics covered in the book are put into practice through detailed tutorials, the source code for which is also available for download. Assuming you already have some rudimentary programming experience, are ready to download Android Studio and the Android SDK, and have access to a Windows, Mac, or Linux system, you are ready to start.

Practical Software Architecture Solutions from the Legendary Robert C. Martin (“Uncle Bob”) By applying universal rules of software architecture, you can dramatically improve developer productivity throughout the life of any software system. Now, building upon the success of his best-selling books Clean Code and The Clean Coder, legendary software craftsman Robert C. Martin (“Uncle Bob”) reveals those rules and helps you apply them. Martin’s Clean Architecture doesn’t merely present options. Drawing on over a half-century of experience in software environments of every imaginable type, Martin tells you what choices to make and why they are critical to your success. As you’ve come to expect from Uncle Bob, this book is packed with direct, no-nonsense solutions for the real challenges you’ll face–the ones that will make or break your projects. Learn what software architects need to achieve–and core disciplines and practices for achieving it Master essential software design principles for addressing function, component separation, and data management See how programming paradigms impose discipline by restricting what developers can do Understand what’s critically important and what’s merely a “detail” Implement optimal, high-level structures for web, database, thick-client, console, and embedded applications Define appropriate boundaries and layers, and organize components and services See why designs and architectures go wrong, and how to prevent (or fix) these failures Clean Architecture is essential reading for every current or aspiring software architect, systems analyst, system designer, and software manager–and for every programmer who must execute someone else’s designs. Register your product for convenient access to downloads, updates, and/or corrections as they become available.

Kotlin is a statically typed programming language designed to interoperate with Java and fully supported by Google on the Android operating system. It is also a multiplatform language that can be used to write code that can be shared across platforms including macOS, iOS, Windows, and JavaScript. Based on Big Nerd Ranch’s popular Kotlin Essentials course, this guide shows you how to work effectively with Kotlin through hands-on examples and clear explanations of key Kotlin concepts and foundational APIs. Written for Kotlin 1.5, this book will also introduce you to JetBrains’ IntelliJ IDEA development environment. Whether you are an experienced developer or are learning your first programming language – and whether you are interested in Kotlin for Android, server-side, or multiplatform projects – the authors will guide you from first principles to advanced Kotlin usage. By the end of this book, you will be empowered to create reliable, concise applications in Kotlin.

Learn how to do more with the Android SDK with this advanced Android Application guide which shows you how to make even better Android apps that users will love About This Book Learn how to design and build better Android apps to reach new users Explore the latest features and tools in the Android SDK that will help you become a better developer From concurrency to testing – through to adding adverts and billing, this book ties together every element to help you deliver a high-quality Android application on Google Play Who This Book Is For Mastering Android Application Development is intended for Android developers that want insight on and guidance through the steps they need to take to give their creations the edge in a competitive market. What You Will Learn Create an Android project with Android M features Design the basic navigation for our app using the UI components Set up a cloud-based platform and store data on it Implement programming patterns such as Singleton and Observer to maintain your project code for future use Display lists and grids using Android RecyclerView Implement user interface components and make your app look professional Handle, download, and store images along with memory management Create the database and content providers to perform read-write operations Add notifications to the app and analytics to track the user's usage Show a Google map view on your app Configure minify to obfuscate the code Add adverts and create products for purchase in your app In Detail There are millions of Android apps out there for people to download – how do you make sure yours has the edge? It's not always about innovation and ideas – the most successful apps are those that are able to satisfy customer demands – they're the ones that look the best, the fastest, and the easiest and most intuitive to use. This book shows you how to create Android applications that do precisely that – it has been designed help you consider and answer those questions throughout the development process, so you can create applications that stand out against the crowd. Learn how to create exemplary UIs that contribute to a satisfying user experience through the lens of Material Design, and explore how to harness the range of features within the Android SDK to help you. Dive deeper into complex programming concepts and discover how to leverage concurrency and navigate memory management and image handling. You'll also find further guidance on testing and debugging so you can guarantee that your application is reliable and robust for users. Beyond this you'll find out how to extend your app and add greater functionality, including notifications, location services, adverts and app billing (essential if you want to properly monetize your creation!). To make sure you have confidence at every stage in the process, the book also shows you how to release your app to the Play store – to make sure your maximising your efforts to create a popular Android application! Style and approach This is a step-by-step guide where theory and practice are merged in a way that helps you to put a new concept into practice with ease. By helping to focus on the end result, and showing all the technical steps you need to get there, you will be poised for development success!

Master the art of creating impressive and reactive UIs for mobile applications on the latest version of Android Oreo.About This Book* A comprehensive guide to designing and developing highly interactive user interfaces for your app.* Design responsive and agile applications targeting multiple Android devices (up to Android Oreo) using Android Studio 3.0* Write reactive user interfaces with minimal effort by leveraging the latest Android technologies, such as Architecture components and the Lifecycle API* Avoid common design problems and pitfalls with the help of shared UI design patterns and best practices.Who This Book Is ForThis book is for novice Android and Java developers who have a basic knowledge of Android development and want to start developing stunning user interfaces.What You Will Learn* Create effective and efficient user interfaces that allow users to carry out tasks smoothly* Understand the fundamentals of Android UI design, and take a look at the basic layouts, Inputs, and controls* Learn about various UI components provided by Android, which include structured layout objects and UI controls that allow you to build the graphical user interface for your app* Explore various styles and themes that allow you to customize the look and feel of your app* Leverage the animation and graphics APIs to improve user experience and draw custom 2D graphicsIn DetailA great user interface (UI) can spell the difference between success and failure for any new application. This book will show you not just how to code great UIs, but how to design them as well. It will take novice Android developers on a journey, showing them how to leverage the Android platform to produce stunning Android applications.Begin with the basics of creating Android applications and then move on to topics such as screen and layout design. Next, learn about techniques that will help improve performance for your application. Also, explore how to create reactive applications that are fast, animated, and guide the user toward their goals with minimal distraction.Understand Android architecture components and learn how to build your application to automatically respond to changes made by the user. Great platforms are not always enough, so this book also focuses on creating custom components, layout managers, and 2D graphics. Also, explore many tips and best practices to ease your UI development process.By the end, you'll be able to design and build not only amazing UIs, but also systems that provide the best possible user experience.Style and approachThis book takes an easy tutorial approach to help you learn how to create consistent and efficient user interfaces for your apps. The book first takes you through the basics of user interfaces such as basic layouts, inputs, and controls, and also covers animations and graphics. By the end of the book, you will have learned best practices and will be able to develop inspired interfaces that look good and also work subtly in the background.

Start building native Android apps the modern way in Kotlin with Jetpack's expansive set of tools, libraries, and best practices. Learn how to create efficient, resilient views with Fragments and share data between the views with ViewModels. Use Room to persist valuable data quickly, and avoid NullPointerExceptions and Java's verbose expressions with Kotlin. You can even handle asynchronous web service calls elegantly with Kotlin coroutines. Achieve all of this and much more while building two full-featured apps, following detailed, step-by-step instructions.With Kotlin and Jetpack, Android development is now smoother and more enjoyable than ever before. Dive right in by developing two complete Android apps. With the first app, Penny Drop, you create a full game complete with random die rolls, customizable rules, and AI opponents. Build lightweight Fragment views with data binding, quickly and safely update data with ViewModel classes, and handle all app navigation in a single location. Use Kotlin with Android-specific Kotlin extensions to efficiently write null-safe code without all the normal boilerplate required for pre-Jetpack + Kotlin apps. Persist and retrieve data as full objects with the Room library, then display that data with ViewModels and list records in a RecyclerView. Next, you create the official app for the Android Baseball League. It's a fake league but a real app, where you use what you learn in Penny Drop and build up from there. Navigate all over the app via a Navigation Drawer, including specific locations via Android App Links. Handle asynchronous and web service calls with Kotlin Coroutines, display that data smoothly with the Paging library, and send notifications to a user's phone from your app. Come build Android apps the modern way with Kotlin and Jetpack! What You Need: You'll need the Android SDK, a text editor, and either a real Android device or emulator for testing. While not strictly required, it's assumed you're using Android Studio, which comes with the Android SDK and simplifies creating an emulator. Also, a few examples require JDK 1.8 or later, though all of these pieces can be completed in other ways when using JDK 1.6.