Mastering Xamarin.Forms - Second Edition by Ed Snider

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Paperback:::: 192 pages+++Publisher:::: Packt Publishing; 2nd Revised edition edition (March 27, 2018)+++Language:::: English+++ISBN-10:::: 9781788290265+++ISBN-13:::: 978-1788290265+++ASIN:::: 1788290267+++Product Dimensions::::7.5 x 0.4 x 9.2 inches++++++ ISBN10 9781788290265 ISBN13 978-1788290265

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Description: Key FeaturesPacked with real-world scenarios and solutions to help you build professional grade mobile apps with Xamarin.FormsBuild an effective mobile app architecture with the Xamarin.Forms toolkitMaximize the overall quality of your Xamarin.Forms appsDiscover how to extend and build upon the components of the Xamarin.Forms toolkit to develop effective, robust mobile app architecture. Starting with an app built with the basics of the Xamarin.Forms toolkit, well go step by step through several advanced topics to create a solution architecture rich with the benefits of good design patterns and best practices.Well start by introducing a core separation between the apps user interface and the apps 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 and geo-location, as well as how to loosely use these services in the app with inversion of control and dependency injection. Next well connect the app to a live web-based API and set up offline synchronization. Then, well dive into testing the app logic through unit tests. Finally, we will setup Visual Studio App Center to automate building, testing, distributing and monitoring the app.What you will learnFind out how, when, and why you should use architecture patterns and get best practices with Xamarin.FormsImplement the Model- View-ViewModel (MVVM) pattern and data-binding 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 appsTest business logic in Xamarin.Forms mobile appsUse platform-specific APIs to build rich custom user interfaces in Xamarin.Forms mobile appsExplore how to improve mobile app quality using Visual Studio App Center

It was a good intro to using Xamarin.Forms with a few notable exceptions:- The base application developed during the book is a map based travel log. Xamarin uses both Google Maps and Bing maps depending on platform. The author did not indicate anywhere that I could find that the user needs to acquire both a Google Maps API Key and a Bing Maps API Key. Fortunately I have used the Google Maps API doing web development and new a key is required. However it took some research to find where the Google Maps API Key needs to be specified and where the Bing Maps API Key needs to be specified.- the first couple of chapters the author did a good job of showing how to create a multi- form Xamarin.Forms apps. Then inexplicably he launched into a totally unnecessary rewrite of the application routing that was hard to follow because of the many updates requiring returning to modules over and over. All of this done with no good explanation of why he was doing all of that other than some esoteric statements that he was abstracting the routing from the user view. An explanation of what problem he was solving would have been useful and a more straightforward code implementation that did not require bouncing back and forth in the same modules would also have been good.Once the Google/Bing Map API Keys were actually acquired and initialized in the code the authors coding does actually work - unlike many technical books. However, anyone looking to implement Xamarin.Forms in Microsofts Visual Studio should be forewarned that there are many issues in Visual Studio. Trying to implement the authors examples was frustrating due to the MANY, MANY problems with Xamarin in Visual Studio.Its hard to tell whether the problem is in Xamarins implementation of the Xamarin.Forms.Maps or actually in Bing map processing but the example application did not work in the Windows Universal Development on the pc. It did work find on Android. Not the authors problem but still very frustrating when trying to follow along and Xamarin Forms processing fails.

Mastering Xamarin.Forms - Second Edition in Computers and Technology pdf books

Mastering Xamarin.Forms - Second Edition

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