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Kivy Cookbook

You're reading from   Kivy Cookbook Enhance your skills in developing multi-touch applications with Kivy

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Product type Paperback
Published in Aug 2015
Publisher
ISBN-13 9781783987382
Length 246 pages
Edition 1st Edition
Languages
Tools
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Authors (2):
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Hugo Solis Hugo Solis
Author Profile Icon Hugo Solis
Hugo Solis
Hugo Solis Hugo Solis
Author Profile Icon Hugo Solis
Hugo Solis
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Toc

Table of Contents (11) Chapters Close

Preface 1. Kivy and the Kv Language FREE CHAPTER 2. Input, Motion, and Touch 3. Events 4. Widgets 5. Graphics – Canvas and Instructions 6. Advanced Graphics – Shaders and Rendering 7. The API in Detail 8. Packaging our Apps for PC 9. Kivy for Mobile Devices Index

Working with a camera


It is very common that almost all our personal devices have a camera. So you could find thousands of ways to use a camera signal in your app. In this recipe, we want to create an app that takes control of the camera present in a device.

Getting ready

Actually, you need to have the correct installation of the packages that permits you to interact with a camera. You can review http://kivy.org/docs/faq.html#gstreamer-compatibility to check if your installation is suitable.

How to do it…

We are going to use the Python and KV files in this recipe. The KV file will deal with the camera and button to interact with it. The Python code is one of our usual Python files with the definition of the root widget. Let's follow these steps:

  1. In the KV file, define the <MyW> rule.

  2. In the rule, define BoxLayout with a vertical orientation.

  3. Inside the Layout, define the camera widget with play property as false.

  4. Also, define the ToggleButton with the press property swifts between play and...

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