Everything the device can do, from a web page.A phone today carries a GPS receiver, a camera, a microphone, an accelerometer, a battery gauge and a network interface — and a browser that can reach every one of them. This book teaches you to write software that uses them. It begins with the web platform rather than a toolchain. Chapter 2 puts a working page on your own phone; from there the book builds steadily outwards — responsive layout with CSS Grid and media queries, reading device sensors and asking for permission, designing touch interfaces that respect the thumb, managing state that survives a restart, calling external APIs over HTTPS, and turning the result into an installable progressive web app that keeps working when the network does not. By Chapter 10 you assemble a complete progressive web app from the parts built in earlier chapters. Chapter 11 adds maps, location and deployment. Chapter 6 is a dedicated revision chapter drawing the first five together.Inside this book
Every code sample runs. Scan the QR code beside a technique and the demonstration opens on your own phone — no downloads, no setup, nothing to install. An errata page keeps the book honest: if something in these pages is wrong, it is corrected there.Who it is forStudents on the BSc (Hons) Software Engineering programme; independent learners who already know a little HTML and CSS and want to build for mobile; and web developers moving from the desktop to the device.About the authorDr. Riyad Dhuny is a Senior Lecturer at the University of Technology, Mauritius, where he heads the Department of Creative Arts, Film and Media Technologies. His research spans edge computing, the Internet of Things, applied artificial intelligence and performance optimisation. Software Engineering Study Guide Series Code and live demonstrations: books.dhuny.org
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