Get to grips with asynchronous programming in Android using simple, modern, and testable code through Kotlin coroutines and flow Key Features Find out how to improve app performance with Kotlin coroutines Discover the new recommended ways to use Kotlin coroutines and flows Learn the basics of asynchronous programming, along with an overview of coroutines and flow Book DescriptionCoroutines and flows are the new recommended way for developers to carry out asynchronous programming in Android using simple, modern, and testable code. This book will teach you how coroutines and flows work and how to use them in building Android applications, along with helping you to develop modern Android applications with asynchronous programming using real data. The book begins by showing you how to create and handle Kotlin coroutines on Android. You'll explore asynchronous programming in Kotlin, and understand how to test Kotlin coroutines. Next, you'll learn about Kotlin flows on Android, and have a closer look at using Kotlin flows by getting to grips with handling flow cancellations and exceptions and testing the flows. By the end of this book, you'll have the skills you need to build high-quality and maintainable Android applications using coroutines and flows. What you will learn Understand how coroutines and flows differ from existing ways Apply asynchronous programming in Android with coroutines and flows Find out how to build your own coroutines and flows in Android Handle, manipulate, and combine data in coroutines and flows Handle cancellations and exceptions from coroutines and flows Discover how to add tests for your coroutines and flows Integrate coroutines and flows into your Android projects Who this book is forThis book is for intermediate-level Android developers who want to level up their Android app-building skills. Familiarity with Android development and basic knowledge of Kotlin are needed to make the most of this book.

Leverage the power of Galio and React Native to create beautifully designed, practical, and exciting mobile apps Key Features Understand Galio and quickly build cross-platform mobile apps Discover how to put Galio into practice by implementing it in real-world scenarios Build beautiful apps using Galio by taking advantage of its carefully crafted components Book DescriptionGalio is a free open source React Native framework that enables beginner-level programmers to quickly build cross-platform mobile apps by leveraging its beautifully designed ready-made components. This book helps you to learn about React Native app development while building impressive out-of-the-box apps with Galio. Lightning Fast Mobile App Development with Galio takes a hands-on approach to implementation and associated methodologies that will have you up and running and productive in no time. Complete with step-by-step explanations of essential concepts, practical examples, and self-assessment questions, you will begin by exploring the basics of React Native and understanding how Galio works. As you make progress, you'll learn how to initialize and configure a React Native app and get to grips with the basics of React Native development. You'll also discover how packages work and how to install Galio as the main dependency, along with understanding how and why Galio helps you to develop apps with ease. Finally, you'll build three practical and exciting apps using React Native and Galio. By the end of this app development book, you'll have learned how to use Galio to quickly create layouts and set up React Native projects for your personal ideas. What you will learn Explore Galio and learn how to build beautiful and functional apps Familiarize yourself with the Galio ecosystem Discover how to use npm and understand why Galio is needed Get to grips with the basics of constructing a basic but attractive UI for an app Find out how you can utilize Galio's ready-made components Use Galio to drive the process of quickly building cross-platform mobile apps Build three practical and exciting apps with React Native and Galio Who this book is forThis book is for developers who are looking to learn new skills or build personal mobile apps. Anyone trying to change their job as well as beginners and intermediate web developers will also find this book useful. A basic understanding of CSS, HTML, and JavaScript is needed to get the most out of this book.

Mastering NativeScript helps readers master the NativeScript framework for faster and more robust mobile app development. Mobile devices have progressed from a mere means of communication to becoming a critical business tool in recent years. People are increasingly glued to their smartphones as technology advances at breakneck speed. The significance of mobile app development cannot be overstated. And when it comes to mobile app development, NativeScript is a hot topic. NativeScript was introduced by Telerik, and it allows you to develop truly native apps for iOS and Android under a single code base using JavaScript or TypeScript, XML, and a subset of CSS. The charm of NativeScript is that it enables us to code once for multiple platforms (iOS 7.1 and Android 4.1), simultaneously sharing code amongst them while still allowing developers to add platform-specific instructions with flawless execution. As a result, you may release an app for both platforms using a single code base. NativeScript is comprised of three parts: a JavaScript (JS) virtual machine, a runtime, and a bridge module. The JS virtual machine is used for interpretation and execution of JavaScript code. The bridge module then converts the calls to platform-specific API calls and returns the outcome to the caller. NativeScript is a very appealing paradigm, and is rising in popularity as we speak. It can be used to construct practically any program, including communication apps (news and social networking), gaming applications (Chess, Tic-Tac-Toe, Pinball), and chat apps. It can also handle maps and geolocation apps. With Mastering NativeScript, learning NativeScript becomes straightforward, which will undoubtedly help readers advance their careers. The Mastering Computer Science series is edited by Sufyan bin Uzayr, a writer and educator with over a decade of experience in the computing field.

Dieses Buch enthalt die Beitrage der 5. GI/ITG-Fachtagung uber Messung, Modellierung und Bewertung von Rechensystemen und Netzen, die im September 1989 in Braunschweig veranstaltet wurde. Inhalt dieser wichtigsten deutschen Tagung auf diesem Gebiet war der Austausch neuer Ideen und Erfahrungen bei der quantitativen Untersuchung von Rechensystemen und Netzen. Dabei wurde einerseits das volle methodische Spektrum - Messinstrumentierung/Messung - Modellbildung/simulative und mathematische Modellanalyse - Bewertung und Synthese in leistungsorientierter bzw. leistungs-/ zuverlassigkeitsorientierter Sicht abgedeckt sowie andererseits uber praktische Erfahrungen beim Einsatz dieser Methoden und Techniken bei Entwurf, Implementierung/Installierung und Betrieb einzelner und vernetzter Rechensysteme berichtet. Die Beitrage behandeln Methoden und Techniken der Beschreibung und Untersuchung von Systemen hinsichtlich ihrer Leistungsfahigkeit und Zuverlassigkeit, (Hard- und Software-) Mess- und Monitorsysteme, Charakterisierung von Systembelastungen, Erstellung und simulative mathematische/hybride Analyse von Systemmodellen sowie Erfahrungen bei der Bewertung und Optimierung von Rechensystemen und Netzen."

Seit 1986 trifft sich in Mannheim jahrlich auf Einladung des Vereins zur wissenschaftlichen Weiterbildung der Universitat Mannheim e.V. die deutschsprachige Supercomputergemeinde - Anwender, Betreiber, Hersteller - zu einem fruchtbaren Dialog und Erfahrungsaustausch. In dem diesjahrigen Seminar "Supercomputer - Anwendungen, Architekturen und Trends" werden die neuesten Entwicklungen dieses stark innovativen Gebiets unter einem sehr anwendungsbezogenen, praktischen Aspekt aufgearbeitet. Experten aus dem Inland sowie den nach wie vor fuhrenden Landern USA und Japan konnten auch bei dieser zum vierten Mal stattfindenden Veranstaltung zu Prasentationen gewonnen werden. Alle Beitrage zum Seminar sind in diesem Band enthalten. Insbesondere befassen sie sich mit folgenden Schwerpunkten: - Visualisierung/Mensch-Maschine-Schnittstelle - Architekturen - Parallel versus vector processing - Innovative Anwendungen."

Learn how to develop real-world applications of varying complexity for the web, mobile, and VR devices using React, React Native, React 360, and more Key Features Build React applications at scale using React patterns and best practices Explore React features such as Hooks, the Context API, and the Suspense API Extend React's integration with React Native for building cross-platform mobile apps and games Book DescriptionDeveloped by Facebook, React is a popular library for building impressive user interfaces. React extends its capabilities to mobile platforms using the React Native framework and integrates with popular web and mobile tools to build scalable applications. React Projects is your guide to learning React development by using modern development patterns and integrating React with powerful web tools, such as GraphQL, Expo, and React 360. You'll start building a real-world project right from the first chapter and get hands-on with developing scalable applications as you advance to building more complex projects. Throughout the book, you'll use the latest versions of React and React Native to explore features such as routing, Context, and Hooks on multiple platforms, which will help you build full-stack web and mobile applications efficiently. Finally, you'll get to grips with unit testing with Jest and end-to-end testing with Cypress to build test-driven apps. By the end of this React book, you'll have developed the skills necessary to start building scalable React apps across web and mobile platforms. What you will learn Create a wide range of applications using various modern React tools and frameworks Discover how React Hooks modernize state management for React apps Develop web applications using styled and reusable React components Build test-driven React applications using Jest, React Testing Library, and Cypress Understand full-stack development using GraphQL, Apollo, and React Perform server-side rendering using React and Next.js Create animated games using React Native and Expo Design gestures and animations for a cross-platform game using React Native Who this book is forThe book is for JavaScript developers who want to explore React tooling and frameworks for building cross-platform applications. Basic knowledge of web development, ECMAScript, and React will assist with understanding key concepts covered in this book.

Unleash the power of declarative programming in SwiftUI by building cross-platform Apple apps for iOS 15, macOS, and watchOS using Swift 5.5, Xcode 13, and SwiftUI 3 Key Features Apply the declarative programming paradigm to build cross-platform UIs for Apple devices Learn to integrate UIkit, Core Data, Firebase, and Sign in with Apple with SwiftUI Adopt the new SwiftUI 3.0 features to build visually appealing UIs speedily Book DescriptionSwiftUI provides an innovative and simple way to build beautiful user interfaces (UIs) for all Apple platforms, from iOS and macOS through to watchOS and tvOS, using the Swift programming language. In this recipe-based cookbook, you'll cover the foundations of SwiftUI as well as the new SwiftUI 3 features introduced in iOS 15 and explore a range of essential techniques and concepts that will help you through the development process. The cookbook begins by explaining how to use basic SwiftUI components. Once you've learned the core concepts of UI development, such as Views, Controls, Lists, and ScrollViews, using practical implementations in Swift, you'll advance to adding useful features to SwiftUI using drawings, built-in shapes, animations, and transitions. You'll understand how to integrate SwiftUI with exciting new components in the Apple development ecosystem, such as Combine for managing events and Core Data for managing app data. Finally, you'll write iOS, macOS, and watchOS apps by sharing the same SwiftUI codebase. By the end of this SwiftUI book, you'll have discovered a range of simple, direct solutions to common problems encountered when building SwiftUI apps. What you will learn Explore various layout presentations in SwiftUI such as HStack, VStack, LazyHStack, and LazyVGrid Create widgets to quickly display relevant content at glance Get up to speed with drawings in SwiftUI using built-in shapes, custom paths, and polygons Discover modern animation and transition techniques in SwiftUI Add user authentication using Firebase and Sign in with Apple Manage concurrency with Combine and async/await in SwiftUI Solve the most common SwiftUI problems, such as integrating a MapKit map, unit testing, snapshot testing, and previewing layouts Who this book is forThis book is for mobile developers who want to learn SwiftUI as well as experienced iOS developers transitioning from UIkit to SwiftUI. The book assumes knowledge of the Swift programming language. Knowledge of object-oriented design and data structures will be useful but not necessary. You'll also find this book to be a helpful resource if you're looking for reference material regarding the implementation of various features in SwiftUI.

According to Apple, there are currently 380,000 registered iOS developers and over a billion iOS devices in use worldwide. Swift, the language of iOS development, is the fastest growing programming language. iOS Development with Swift is a hands-on guide to creating apps for iPhone and iPad using the Swift language. It starts by giving a birdseye view of how an iOS application works and what it takes to build one. With the basics well in hand, the book takes readers through progressively more challenging examples as they learn how to design iOS apps, build good layouts, handle navigation, and interact with the device's camera. Key Features: * Hands-on guide to creating apps * Teaches the very basics * Rich in examples Written for readers with experience using a language like Java, Python, or C#. No prior iOS development or Swift experience required. About the Technology: Swift is a modern language created by Apple. In 2015 Swift was rated the most loved programming language on Stack Overflow, and it is currently ranked 17 in the programming language rankings guide of January 2016.

Overcome the challenges and complexities involved in creating your own shaders with high-level realism using practical solutions, best practices, and the latest features of Unity 2021 Key Features Discover practical recipes for mastering post-processing effects and advanced shading techniques Learn the secrets of creating AAA quality shaders without writing long algorithms Create visually stunning effects for your games using Unity's VFX Graph Book DescriptionShaders enable you to create powerful visuals for your game projects. However, creating shaders for your games can be notoriously challenging with various factors such as complex mathematics standing in the way of attaining the level of realism you crave for your shaders. The Unity 2021 Shaders and Effects Cookbook helps you overcome that with a recipe-based approach to creating shaders using Unity. This fourth edition is updated and enhanced using Unity 2021 features and tools covering Unity's new way of creating particle effects with the VFX Graph. You'll learn how to use VFX Graph for advanced shader development. The book also features updated recipes for using Shader Graph to create 2D and 3D elements. You'll cover everything you need to know about vectors, how they can be used to construct lighting, and how to use textures to create complex effects without the heavy math. You'll also understand how to use the visual-based Shader Graph for creating shaders without any code. By the end of this Unity book, you'll have developed a set of shaders that you can use in your Unity 3D games and be able to accomplish new effects and address the performance needs of your Unity game development projects. So, let's get started! What you will learn Use physically based rendering to fit the aesthetic of your game Create spectacular effects for your games by testing the limits of what shaders can do Explore advanced shader techniques for your games with AAA quality Use Shader Graph to create 2D and 3D elements for your games without writing code Master the math and algorithms behind the commonly used lighting models Get to grips with the Post-Processing Stack to tweak the appearance of your game Who this book is forThis book is for game developers who want to start creating their first shaders in Unity 2021 and take their game to a whole new level by adding professional post-processing effects. The book assumes intermediate-level knowledge of Unity.