Ed Snider

New edition of the bestselling guide to building an effective mobile app architecture with Xamarin. Forms 4 that maximizes the overall quality of apps. Key FeaturesUpdated for Xamarin. Forms 4Packed with real-world scenarios and solutions to help you build professional grade mobile apps with Xamarin. FormsIncludes design patterns and best practice techniques that every mobile developer should knowBook DescriptionDiscover how to extend and build upon the components of the most recent version of Xamarin. Forms to develop an effective, robust mobile app architecture. This new edition features Xamarin. Forms 4 updates, including CollectionView and RefreshView, new coverage of client-side validation, and updates on how to implement user authentication. Mastering Xamarin. Forms, Third Edition is one of the few Xamarin books structured around the development of a simple app from start to finish, beginning with a basic Xamarin. Forms app and going step by step through several advanced topics to create a solution architecture rich with the benefits of good design patterns and best practices. This book introduces a core separation between the app's user interface and the app's business logic by applying the MVVM pattern and data binding, and then focuses on building a layer of plugin-like services that handle platform-specific utilities such as navigation and geo-location, as well as how to loosely use these services in the app with inversion of control and dependency injection. You’ll connect the app to a live web-based API and set up offline synchronization before testing the app logic through unit testing. Finally, you will learn how to add monitoring to your Xamarin. Forms projects to track crashes and analytics and gain a proactive edge on quality. What you will learnFind out how, when, and why to use architecture patterns and best practices with Xamarin. FormsImplement the Model-View-ViewModel (MVVM) pattern and data binding in Xamarin. Forms mobile appsIncorporate client-side validation in Xamarin. Forms mobile appsExtend the Xamarin. Forms navigation API with a custom ViewModel-centric navigation serviceLeverage the inversion of control and dependency injection patterns in Xamarin. Forms mobile appsWork with online and offline data in Xamarin. Forms mobile appsUse platform-specific APIs to build rich custom user interfaces in Xamarin. Forms mobile appsExplore how to monitor mobile app quality using Visual Studio App CenterWho this book is forThis book is intended for . NET developers who are familiar with Xamarin mobile application development and the open source Xamarin. Forms toolkit. If you have already started working with Xamarin. Forms and want to take your app to the next level, making it more maintainable, testable and flexible, then this book is for you.

Create high-quality multi-platform native apps with Xamarin. Forms About This Book • Packed with real-world scenarios and solutions to help you build professional-grade mobile apps with Xamarin. Forms • Build an effective mobile app architecture with the Xamarin. Forms toolkit • Find out how, when, and why you should use architectural patterns and get best practices with Xamarin. Forms Who This Book Is For This book is intended for C# developers who are familiar with the Xamarin platform and the Xamarin. Forms toolkit. If you have already started working with Xamarin. Forms and want to take your app to the next level with higher quality, maintainability, testability, and flexibility, then this book is for you. What You Will Learn • Implement the Model-View-View-Model (MVVM) pattern and data-binding in Xamarin. Forms mobile apps • Extend the Xamarin. Forms navigation API with a custom ViewModel-centric navigation service • Leverage the inversion of control and dependency injection patterns in Xamarin. Forms mobile apps • Work with online and offline data in Xamarin. Forms mobile apps • Test business logic in Xamarin. Forms mobile apps • Use platform-specific APIs to build rich custom user interfaces in Xamarin. Forms mobile apps • Explore how to improve mobile app quality using Visual Studio AppCenter In Detail Discover how to extend and build upon the components of the Xamarin. Forms toolkit to develop an effective, robust mobile app architecture. Starting with an app built with the basics of the Xamarin. Forms toolkit, you'll go step by step through several advanced topics to create a solution architecture rich with the benefits of good design patterns and best practices. You'll start by introducing a core separation between the app's user interface and its business logic by applying the MVVM pattern and data-binding. Then you focus on building out a layer of plugin-like services that handle platform-specific utilities such as navigation and geo-location, and on how to loosely use these services in the app with inversion of control and dependency injection. Next you connect the app to a live web-based API and set up offline synchronization. Then, you delve into testing the app logic through unit tests. Finally, you set up Visual Studio App Center for monitoring usage and bugs to gain a proactive edge on app quality. Style and approach This easy-to-follow, code-rich guide will walk you through building a real-world Xamarin. Forms mobile app from start to finish. Each chapter builds on the app by applying new advanced capabilities, design patterns, and best practices. Packed with real-world scenarios, this step-by-step guide will help you quickly build professional-grade apps with Xamarin. Forms.

Build rich, maintainable multiplatform native mobile apps with Xamarin. Forms About This Book • Build an effective mobile app architecture with the Xamarin. Forms toolkit • Maximize the testability, flexibility, and overall quality of your Xamarin. Forms mobile app • This step-by-step tutorial is packed with real-world scenarios and solutions to build professional grade mobile apps with Xamarin. Forms Who This Book Is For This book is intended for C# developers who are familiar with the Xamarin platform and the Xamarin. Forms toolkit. If you have already started working with Xamarin. Forms and want to take your app to the next level and make it more maintainable, testable, and flexible, then this book is for you. What You Will Learn • Find out how, when, and why you should use architecture patterns and get best practices with Xamarin. Forms • Implement the Model-View-ViewModel (MVVM) pattern and data-binding in Xamarin. Forms mobile apps • Extend the Xamarin. Forms navigation API with a custom ViewModel-centric navigation service • Leverage the inversion of control and dependency injection patterns in Xamarin. Forms mobile apps • Work with online and offline data in Xamarin. Forms mobile apps • Test both business logic and user interface code in Xamarin. Forms mobile apps • Use platform-specific APIs to build rich custom user interfaces in Xamarin. Forms mobile apps • Explore how to improve mobile app quality with analytics and crash reporting using Xamarin Insights In Detail Discover how to extend and build upon the components of the Xamarin. Forms toolkit to develop an effective, robust mobile app architecture. Starting with an app built with the basics of the Xamarin. Forms toolkit, we'll go step by step through several advanced topics to create a solution architecture rich with the benefits of good design patterns and best practices. We'll start by introducing a core separation between the app's user interface and the app's business logic by applying the MVVM pattern and data binding. Discover how to extend and build upon the components of the Xamarin. Forms toolkit to develop an effective, robust mobile app architecture. Starting with an app built with the basics of the Xamarin. Forms toolkit, we'll go step by step through several advanced topics to create a solution architecture rich with the benefits of good design patterns and best practices. We'll start by introducing a core separation between the app's user interface and the app's business logic by applying the MVVM pattern and data binding. Then we will focus on building out a layer of plugin-like services that handle platform-specific utilities such as navigation, geo-location, and the camera, as well as how to use these services with inversion of control and dependency injection. Next we'll connect the app to a live web-based API and set up offline synchronization. Then, we'll dive into testing the app—both the app logic through unit tests and the user interface using Xamarin's UITest framework. Finally, we'll integrate Xamarin Insights for monitoring usage and bugs to gain a proactive edge on app quality. Style and approach This easy-to-follow, code-rich guide will walk you through building a real-world Xamarin. Forms mobile app from start to finish. Each chapter builds upon the app by applying new advanced functionalities, design patterns, and best practices.

Stretching back to the team’s birth in the National Hockey League expansion of 1967, this record follows the Philadelphia Flyers’ story, starting with the rabid fan base they built during their “Broad Street Bullies” era of the 1970s. The hard-charging Bullies’ back-to-back Stanley Cup victories in 1974 and 1975 are documented, and the team’s status as a perennial contender is illustrated through their 34 playoff appearances. Penned by charismatic superstar and team manager Bobby Clarke’s own daughter Jakki, this account reflects the personal relationships the author established with many of the team’s best skaters. Drawn from up-close interviews with more than 30 of the Flyers’ greats regarding their lives, playing careers, challenges, and successes, this compilation is a must-have keepsake that all Philadelphia hockey fans are sure to cherish. Players from all eras are represented—including Billy Barber, Bernie Parent, Mark Howe, Keith Primeau, and more—sharing never-before-told stories about learning to skate, playing pranks in the locker room, enjoying the fruits of victory, and overcoming crushing defeat. Containing valuable advice for both athletes and parents, this is an intimate look at a group of men who have experienced the ups and downs of a demanding sport at all levels.