Creating Apps in Kivy : Mobile with Python

Build mobile apps efficiently with Kivy, the Python-powered graphical toolkit for creating natural user interfaces with elegant multitouch support. With this hands-on guide, you'll learn step-by-step how to build and deploy a complete Kivy app for iOS and Android devices. If you're just beginning to work with Python, but are reasonably familiar with its syntax, you're ready to go. Each chapter includes exercises, using examples that run on Python 3 and Python 2.7. Learn how Kivy simplifies mobile development with its cross-platform API and domain-specific Kv language, and why this free and open source toolkit is ideal for commercial products. Design custom widgets with the Kv language Delve into Kivy events, event handlers, and properties Dynamically change which Kivy widgets are displayed Understand and apply iterative development principles Create basic animations, using Canvas and graphics primitives Store local data with Kivy's powerful key value store Add basic gestures to switch between app views Improve your app's usability with Kivy's built-in widgets Deploy the app to your Android or iOS device, using Buildozer Copyright Table of Contents Preface Who Should Read This Book Technology Used in This Book Conventions Used in This Book Using Code Examples Safari® Books Online How to Contact Us Acknowledgments Chapter 1. Introducing Kivy Dependencies: The Hard Part Installing on Mac OS Installing on Windows Writing Code: The Easy Part Introducing the KV Language User Interface Design Widgets The KV Language Root Widget Creating a Custom Widget Adjusting Widget Size File It All Away Chapter 2. Events and Properties What Is an Event? Adding Logic to a Custom Widget Responding to Events Accessing Properties of KV Language Widgets Populating the Search Result List File It All Away Chapter 3. Manipulating Widgets A More Extensible Root Widget ListView Adapters Responding to ListView Item Events Swappable Widgets Switching Forms File It All Away Chapter 4. Iterative Development Improving the Add Location Form Caching Widgets Storing Actual Locations and Converting Arguments Retrieving Weather Data File It All Away Chapter 5. Kivy Graphics A Conditions Widget Dynamic Conditions Abstracting Common Widgets Basic Animation Using Icons Instead File It All Away Chapter 6. Kivy Storage Maintaining a List of Locations Storing the Location List The User Settings Dialog File It All Away Chapter 7. Gestures The Forecast Tab Recording Gestures Touch Events Recognizing Gestures Firing Events File It All Away Chapter 8. Advanced Widgets Carousel The ModalView Widget Completing the Refactor Adding an Action Bar File It All Away Chapter 9. Releasing to Android and iOS Getting Buildozer Deploying Your Application Deploying to iOS Android Bonus: Accessing the GPS Keeping It Running File It All Away Index About the Author Build mobile apps efficiently with Kivy, the Python-powered graphical toolkit for creating natural user interfaces with elegant multitouch support. With this hands-on guide, you’ll learn step-by-step how to build and deploy a complete Kivy app for iOS and Android devices. If you’re just beginning to work with Python, but are reasonably familiar with its syntax, you’re ready to go.Each chapter includes exercises, using examples that run on Python 3 and Python 2.7. Learn how Kivy simplifies mobile development with its cross-platform API and domain-specific Kv language, and why this free and open source toolkit is ideal for commercial products.Design custom widgets with the Kv languageDelve into Kivy events, event handlers, and propertiesDynamically change which Kivy widgets are displayedUnderstand and apply iterative development principlesCreate basic animations, using Canvas and graphics primitivesStore local data with Kivy’s powerful key value storeAdd basic gestures to switch between app viewsImprove your app’s usability with Kivy’s built-in widgetsDeploy the app to your Android or iOS device, using Buildozer If you're familiar with Python, you're ready to start building Android apps with the Kivy graphical interface framework. This hands-on book introduces Kivy through a series of easy-to-digest stages, beginning with the most basic example and then building on it step-by-step.