Book Image

Progressive Web Application Development by Example

By : Chris Love
Book Image

Progressive Web Application Development by Example

By: Chris Love

Overview of this book

Are you a developer that wants to create truly cross-platform user experiences with a minimal footprint, free of store restrictions and features customers want? Then you need to get to grips with Progressive Web Applications (PWAs), a perfect amalgamation of web and mobile applications with a blazing-fast response time. Progressive Web Application Development by Example helps you explore concepts of the PWA development by enabling you to develop three projects, starting with a 2048 game. In this game, you will review parts of a web manifest file and understand how a browser uses properties to define the home screen experience. You will then move on to learning how to develop and use a podcast client and be introduced to service workers. The application will demonstrate how service workers are registered and updated. In addition to this, you will review a caching API so that you have a firm understanding of how to use the cache within a service worker, and you'll discover core caching strategies and how to code them within a service worker. Finally, you will study how to build a tickets application, wherein you’ll apply advanced service worker techniques, such as cache invalidation. Also, you'll learn about tools you can use to validate your applications and scaffold them for quality and consistency. By the end of the book, you will have walked through browser developer tools, node modules, and online tools for creating high-quality PWAs.
Table of Contents (12 chapters)

Making your PWA iOS web app capable

When Apple introduced iOS, the original app recommendation was to use HTML5, CSS3, and JavaScript to create rich client-side user experiences. Apple has not removed web app support and has enhanced some capabilities over time. The iOS web app experience is driven by custom metadata that's added to a web page's HEAD.

Much of the Apple meta data has served as a model for the modern web manifest specification. Before the web manifest specification was created, Chrome on Android integrated support for the Apple meta data to drive a similar experience.

The web app experience on iOS is triggered when your website contains Apple-specific META tags, corresponding icons, and when the user has added your site to their homescreen.

The first piece you need is a png file as the default homescreen icon. The file should be named apple-touch-icon...