Programowanie
Helder Vasconcelos, Steve Liles
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.
Nicolas Bohorquez
Asynchronous programming is one of the most effective but often misunderstood techniques for building fast, scalable, and responsive systems in Python. While it can significantly improve performance, efficiency, and sustainability, using async without a clear understanding of its trade-offs can lead to fragile designs and hard-to-debug issues.This book offers a structured approach to applying asynchronous programming in Python. It begins with a conceptual framework to help you distinguish between synchronous and asynchronous execution models, and shows how async relates to other concurrency strategies such as multithreading and multiprocessing. From there, you will explore the core tools available for building async applications in Python.You will also learn how to measure the impact of async programming in practical scenarios, profile and debug asynchronous code, and evaluate performance improvements using real-world metrics. The final chapters focus on applying async techniques to common cloud-based systems, such as web frameworks, database interactions, and data-pipelines tools.Designed for developers looking to apply async programming with confidence, this book blends real-world examples with core concepts to help you write efficient, maintainable Python code.
Nicolas Bohorquez
Asynchronous programming is one of the most effective but often misunderstood techniques for building fast, scalable, and responsive systems in Python. While it can significantly improve performance, efficiency, and sustainability, using async without a clear understanding of its trade-offs can lead to fragile designs and hard-to-debug issues.This book offers a structured approach to applying asynchronous programming in Python. It begins with a conceptual framework to help you distinguish between synchronous and asynchronous execution models, and shows how async relates to other concurrency strategies such as multithreading and multiprocessing. From there, you will explore the core tools available for building async applications in Python.You will also learn how to measure the impact of async programming in practical scenarios, profile and debug asynchronous code, and evaluate performance improvements using real-world metrics. The final chapters focus on applying async techniques to common cloud-based systems, such as web frameworks, database interactions, and data-pipelines tools.Designed for developers looking to apply async programming with confidence, this book blends real-world examples with core concepts to help you write efficient, maintainable Python code.
Robert Wen, Alex Ortiz, Edward Gaile, Rodney...
Implementing DevOps practices and toolchains for automated testing and deployment can accelerate product development with minimal errors in the production environment. However, creating DevOps toolchains by integrating tools from various vendors presents challenges for both administrators and developers. Written by four well-known experts from the Atlassian community, this book addresses the complexities of DevOps toolchain creation and integration by leveraging Atlassian’s Open DevOps solution.Starting with a holistic overview of the DevOps and Atlassian Open DevOps solution, you’ll learn to integrate Jira with other tools. You’ll then find out how to create and integrate a CI/CD pipeline in Bitbucket for automated testing and deployment to Docker containers. With step-by-step guidance, you’ll connect Jira and Bitbucket with other tools, such as Snyk for security and SonarQube for testing, to form an extensive toolchain. You’ll also learn how Compass uses CheckOps for observability and how to use Confluence for documentation and reporting. Finally, you’ll leverage Opsgenie’s ChatOps functionality to enhance collaboration between developers and operations teams.By the end of this book, you’ll be able to establish your DevOps toolchain by integrating Atlassian tools to automate and optimize the software development lifecycle and beyond.
Atlassian Jira Server & Data Center. Programowanie rozwiązań w projektach biznesowych
Jakub Kalinowski
By szybciej, sprawniej i skuteczniej zarządzać projektami Znalezienie odpowiedzi na zaprzątające umysł pytania z zakresu automatyzacji zwykle wiąże się ze spędzeniem długich godzin na wertowaniu niespójnej dokumentacji lub przeszukiwaniu forum Atlassian Community, gdzie swoimi problemami (a także autorskimi pomysłami na ich rozwiązanie) dzielą się inni użytkownicy Jiry. To jednak często bezproduktywne działanie, a jedynym skutecznym ― albo i nieskutecznym ― sposobem, by pokonać przeszkodę, jest metoda prób i błędów. W szczególności dotyczy to klas, metod i interfejsów, o których możemy jedynie powiedzieć, że istnieją i przyjmują określone typy parametrów. Książka Jakuba Kalinowskiego ma w zamyśle oszczędzić czytelnikom żmudnego procesu pozyskiwania wiedzy i dać wskazówki, jak rozwiązać konkretne problemy, z którymi mogą się oni zetknąć podczas pracy z Atlassian Jira Server. Znalazło się tu omówienie takich kwestii jak custom fields, workflows, integracje z API, funkcjonalności dostarczane przez pluginy, a także tego, co niesłusznie jest uznawane za terra incognita, czyli tworzenia własnych pluginów. Autor uzupełnił treść o kilka zagadnień związanych z integracją Jiry i Confluence, jak również z bazami Insight - Asset Management, ponieważ obie aplikacje często są obecne w projektach biznesowych, a ich automatyzacja zazwyczaj przysparza wielu problemów. To książka adresowana przede wszystkim do czytelników, którzy mają już doświadczenie w zarządzaniu projektami i instancjami Jira, jednak do tej pory nie zdecydowali się na pisanie skryptów automatyzujących.
Mercury Learning and Information, Indika Wijesooriya
This book provides a comprehensive guide to developing augmented reality applications. Starting with an introduction to AR concepts, it explores key tools and platforms, emphasizing Unity as a core development tool. Readers will gain hands-on experience creating marker-based and marker-less AR apps using Vuforia, ARKit, and ARCore.The book takes a practical approach, covering the creation of custom components, C# programming for Unity, and building mobile AR apps. Advanced topics include world-scale AR with Niantic Lightship and optimization strategies for AR app performance. Each chapter builds skills progressively, ensuring a thorough understanding of the subject.By the end, readers will have the confidence and skills to design and develop innovative AR applications, understanding the best practices and challenges of AR app development.
Micheal Lanham
The heyday of location-based augmented reality games is upon us. They have been around for a few years, but the release of Pokémon Go was a gamechanger that catalyzed the market and led to a massive surge in demand. Now is the time for novice and experienced developers alike to turn their good ideas into augmented reality (AR) mobile games and meet this demand!If you are keen to develop virtual reality games with the latest Unity 5 toolkit, then this is the book for you. The genre of location-based AR games introduces a new platform and technical challenges, but this book will help simplify those challenges and show how to maximize your game audience.This book will take you on a journey through building a location-based AR game that addresses the core technical concepts: GIS fundamentals, mobile device GPS, mapping, map textures in Unity, mobile device camera, camera textures in Unity, accessing location-based services, and other useful Unity tips. The technical material also discusses what is necessary for further development to create a multiplayer version of the game. At the end, you will be presented with troubleshooting techniques in case you get into trouble and need a little help.
Micheal Lanham
The heyday of location-based augmented reality games is upon us. They have been around for a few years, but the release of Pokémon Go was a gamechanger that catalyzed the market and led to a massive surge in demand. Now is the time for novice and experienced developers alike to turn their good ideas into augmented reality (AR) mobile games and meet this demand!If you are keen to develop virtual reality games with the latest Unity 5 toolkit, then this is the book for you. The genre of location-based AR games introduces a new platform and technical challenges, but this book will help simplify those challenges and show how to maximize your game audience.This book will take you on a journey through building a location-based AR game that addresses the core technical concepts: GIS fundamentals, mobile device GPS, mapping, map textures in Unity, mobile device camera, camera textures in Unity, accessing location-based services, and other useful Unity tips. The technical material also discusses what is necessary for further development to create a multiplayer version of the game. At the end, you will be presented with troubleshooting techniques in case you get into trouble and need a little help.
Trevor Ward
Titanium Mobile has quickly become the platform of choice for many mobile developers and is growing and changing at a rapid rate. From the implementation of CommonJS, Cloud Services, MVC design patterns and more, the last year in Titanium development has been a roller coaster of change for the better. Augmented Reality is a hot area for mobile applications and this book along with the augmentedTi open source application will give a great start to all augmented applications. This book will show you how to build an Augmented Reality application, which is clean, efficient and usable. It shows how to hide the processing from the user and build a display which updates and rotates smoothly.Mobile devices have got more powerful, but they still have limitations. Augmented Reality applications test these devices to breaking point and without the correct coding techniques make the applications unresponsive and cumbersome.This book gives a solution, which will enable you to build an effective application, and is accompanied by a complete working application and source code. It's essential for anybody who is creating a multiple points of interest augmented reality application. It shows how to build this type of application efficiently and takes into consideration the devices limitations and processing capabilities.
Jonathan Linowes
Augmented reality applications allow people to interact meaningfully with the real world through digitally enhanced content. The book starts by helping you set up for AR development, installing the Unity 3D game engine, required packages, and other tools to develop for Android (ARCore) and/or iOS (ARKit) mobile devices. Then we jump right into the building and running AR scenes, learning about AR Foundation components, other Unity features, C# coding, troubleshooting, and testing. We create a framework for building AR applications that manages user interaction modes, user interface panels, and AR onboarding graphics that you will save as a template for reuse in other projects in this book. Using this framework, you will build multiple projects, starting with a virtual photo gallery that lets you place your favorite framed photos on your real-world walls, and interactively edit these virtual objects. Other projects include an educational image tracking app for exploring the solar system, and a fun selfie app to put masks and accessories on your face. The book provides practical advice and best practices that will have you up and running quickly.By the end of this AR book, you will be able to build your own AR applications, engaging your users in new and innovative ways.