Learn how to use the Processing programming language and environment to create Android applications with ease. This book covers the basics of the Processing language, allowing users to effectively program interactive graphics in 2D and 3D. It also details the application of these techniques to different types of Android devices (smartphones, tablets, wearables and smartwatches). Processing for Android walks you through the steps of taking an initial idea to a final app. With this book, you will be able to write engaging apps with interactive visuals driven by motion and location information obtained from the device's sensors; including health data from the wearer, like step count and heart rate. An advantage of Processing for Android over more complex programming environments is the ability for users to focus on the interactions and visual output of their code rather than in the implementation details of the Android platform. This book goes through a comprehensive series of hand-on projects, ranging from simple sketches to more complex projects involving sensors and integration with larger apps. It also covers important aspects such as exporting your Processing projects as signed apps are ready to upload to the Google Play store and be share with the world!What You'll LearnWrite apps and live wallpapers for smartphones and tabletsDesign and implement interactive watch facesCreate Virtual Reality experiences for Cardboard devicesIntegrate Processing sketches into larger apps and Android StudioExport projects as completed apps ready to distribute through Google Play StoreWho This Book Is ForArtists, designers, students, researchers, and hobbyists who are not necessarily Android experts, but are looking to write mobile apps that make creative use of interactive graphics, sensor data, and virtual reality.

Part I: First Steps with Processing for Android

Chapter 1: Getting Started with Android Mode

Chapter 2: The Processing Language

Chapter 3: From Sketch to Play Store

Part II: Drawing and Interaction

Chapter 4: Drawing Graphics and Text

Chapter 5: Touchscreen Interaction

Chapter 6: Live Wallpapers

Part III: Sensors

Chapter 7: Reading Sensor Data

Chapter 8: Driving Graphics and Sound with Sensor Data

Chapter 9: Geo-Location

Part IV: Wearables and Watch Faces

Chapter 10: Wearable Devices

Chapter 11: Visualizing Time

Chapter 12: Visualizing Physical Activity

Part V: 3D and VR

Chapter 13: 3D in Processing

Chapter 14: VR Basics

Chapter 15: Drawing in VR 

Part VI: Appendixes

Appendix A: Gradle and Android Studio Integration 

Appendix B: Processing Libraries