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Kivy Cookbook

Kivy Cookbook

By : Hugo Solis, Solis
2.5 (2)
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Kivy Cookbook

Kivy Cookbook

2.5 (2)
By: Hugo Solis, Solis

Overview of this book

Kivy is an open-source Python library for rapid development of applications that make use of innovative user interfaces, such as multi-touch apps. It is a promising Python framework to develop UI and UX apps in a cross-platform environment, under the Python philosophy. Kivy Cookbook is a practical book that will guide you through the Kivy framework to develop apps and get your apps ready for distribution in App Store and Android devices. You will start off with installing Kivy and building your interfaces. You will learn how to work the accelerometer and create custom events. Then, you will understand how to use the basics, buttons, labels and text inputs and manipulate the widget tree. Next, you will be able to work with manipulating instructions, create an atlas and layouts. Moving on, you will learn packing for Windows and packing for iOS, and use TestDrive. By the end of the book, you will have learnt in detail the relevant features and tools in Kivy and how to create portable packages to distribute your apps in the most used platforms.
Table of Contents (11 chapters)
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10
Index

Leveraging the factory object


The factory object represents the last step to create our own widgets because the factory can be used to automatically register any class or module and instantiate classes from any place in the app. This is a Kivy implementation of the factory pattern where a factory is an object to create other objects. This also opens a lot of possibilities to create dynamic codes in Kivy. In this recipe, we will register one of our widgets.

Getting ready

We will use an adaptation of the code in the recipe Creating Widgets of Chapter 6, Advanced Graphics – Shaders and Rendering to register the widget as a factory object. Copy the file in the same location of this recipe with the name e7.py.

How to do it…

In this recipe, we will use one of our simple Python files where we will register our widget using the factory package. Follow these steps:

  1. Import the usual kivy packages.

  2. In addition, import the Factory package.

  3. Register the MyWidget object from the file of the Chapter 6, Advanced...

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