Book Image

Xamarin.Forms Projects

By : Johan Karlsson, Daniel Hindrikes
Book Image

Xamarin.Forms Projects

By: Johan Karlsson, Daniel Hindrikes

Overview of this book

Xamarin.Forms is a lightweight cross-platform development toolkit for building applications with a rich user interface. In this book you'll start by building projects that explain the Xamarin.Forms ecosystem to get up and running with building cross-platform applications. We'll increase in difficulty throughout the projects, making you learn the nitty-gritty of Xamarin.Forms offerings. You'll gain insights into the architecture, how to arrange your app's design, where to begin developing, what pitfalls exist, and how to avoid them. The book contains seven real-world projects, to get you hands-on with building rich UIs and providing a truly cross-platform experience. It will also guide you on how to set up a machine for Xamarin app development. You'll build a simple to-do application that gets you going, then dive deep into building advanced apps such as messaging platform, games, and machine learning, to build a UI for an augmented reality project. By the end of the book, you'll be confident in building cross-platforms and fitting Xamarin.Forms toolkits in your app development. You'll be able to take the practice you get from this book to build applications that comply with your requirements.
Table of Contents (11 chapters)

Building the weather app

It's time to start building the app. Create a new blank Xamarin.Forms app using .NET Standard as the Code Sharing Strategy, and select iOS, Android, and Windows (UWP) as the platforms. We will name the project Weather.

As the data source for this app, we will use an external weather API. This project will use OpenWeatherMap, a service that offers a couple of free APIs. You can find this service at We will use the service called 5 day / 3 hour forecast in this project, which provides a five-day forecast in three-hour intervals. To use the OpenWeather API, we have to create an account to get an API key. If you don't want to create an API key, we can mock the data instead.

Creating models for the weather data