For Python developers this is the clearest guide to the interactive world of Kivi, ideal for meeting modern expectations of tablets and smartphones. From building a UI to controlling complex multi-touch events, it's all here.

Overview

Use Kivy to implement apps and games in Python that run on multiple platforms
Discover how to build a User Interface (UI) through the Kivy Language
Glue the UI components with the logic of the applications through events and the powerful Kivy properties
Detect gestures, create animations, and schedule tasks
Control multi-touch events in order to improve the User Experience (UX)

In Detail

Mobiles and tablets have brought with them a dramatic change in the utility of applications. Compatibility has become essential, and this has increased the kind of interaction that users expect: gestures, multi-touches, animations, and magic pens. Kivy is an open source Python solution that covers these market needs with an easy-to-learn and rapid development approach. Kivy is growing fast and gaining attention as an alternative to the established developing platforms.

Kivy: Interactive Applications in Python quickly introduces you to the Kivy development methodology. You will learn some examples of how to use many of the Kivy components, as well as understand how to integrate and combine them into big projects. This book serves as a reference guide and is organized in such a way that once finished, you will have already completed your first project.

You will start by learning the Kivy Language for building User Interfaces (UI) and vector figures. We then proceed to the uses of Kivy events and properties to glue the UI with the application logic.

You then go on to build an entire User Interface (UI) starting from a hand-made sketch. Furthermore, you will go on to understand how to use the canvas and drawing instructions to create different types of geometrical figures. Finally, you will be introduced to a big set of interactive and smooth features: transformations (scale, rotate, and translate), gestures, animations, scheduling tasks, and multi-touch elements.

Kivy: Interactive Applications in Python expands your knowledge by introducing various components that improve the User Experience (UX). Towards the end of the book, you will be confident to utilize Kivy components and strategies to start any application or game you have in mind.

What you will learn from this book

Build a User Interface (UI) using the Kivy Language
Understand and alter the order of execution of the drawing instructions
Use the powerful Kivy properties to keep the UI always updated with the last user interactions
Bind and unbind Kivy events to control widgets (UI components), touches, the mouse and keyboard, animations, and clock
Scale, rotate, and translate widgets
Control and switch between different screens
Develop and use your own single gestures
Create animations and combine them to bring widgets to life
Add different types of translations to the animations
Comprehend the main strategies to control the multi-touch events
Schedule single or repetitive tasks such as animations

Approach

Kivy: Interactive Applications in Python is an easy-to-follow book that will guide you into the world of Kivy.

Who this book is written for

This book is aimed at Python developers who are familiar with Python and have a good understanding of concepts like inheritance, classes, and instances. No previous experience of Kivy is required, though some knowledge of event handling, scheduling, and user interfaces, in general, would boost your learning.

Acerca del autor

Roberto Ulloa has a diverse academic record in multiple disciplines within the field of Computer Science. He obtained an MSc from the University of Costa Rica and also taught Programming and Computer Networking there. He then spent two years researching cultural complexity at PhD level at the CulturePlex Lab of the University of Western Ontario.He loves travelling and enjoys an itinerant life, living among different cultures and environments. He loves nature and has spent many months volunteering in Central and South America. He currently lives in Kuala Lumpur, earning a living as a web developer in Python/Django and PHP/Wordpress. He constantly worries that the Internet has already become aware of itself and we are not able to communicate with it because of the improbability of it being able to speak Spanish or any of the 6,000 odd human languages that exist in this world. He loves traveling and enjoys an itinerant life, living among different cultures and environments. He loves nature and has spent many months volunteering in Central and South America. He currently lives in Kuala Lumpur, earning a living as a web developer in Python/Django and PHP/Wordpress. He constantly worries that the Internet has already become aware of itself and we are not able to communicate with it because of the improbability of it being able to speak Spanish or any of the 6,000 odd human languages that exist in this world.

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