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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.Key FeaturesUse Kivy to implement apps and games in Python that run on multiple platformsDiscover how to build a User Interface (UI) through the Kivy LanguageGlue the UI components with the logic of the applications through events and the powerful Kivy propertiesDetect gestures, create animations, and schedule tasksControl multi-touch events in order to improve the User Experience (UX)Book DescriptionMobiles 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 learnBuild a User Interface (UI) using the Kivy LanguageUnderstand and alter the order of execution of the drawing instructionsUse the powerful Kivy properties to keep the UI always updated with the last user interactionsBind and unbind Kivy events to control widgets (UI components), touches, the mouse and keyboard, animations, and clockScale, rotate, and translate widgetsControl and switch between different screensDevelop and use your own single gesturesCreate animations and combine them to bring widgets to lifeAdd different types of translations to the animationsComprehend the main strategies to control the multi-touch eventsSchedule single or repetitive tasks such as animationsWho this book is forThis 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.
