In this video I’ll show you how to use Animations with Kivy and Python. We’ll start by animating a button to change color when you click it. Then we’ll expand the size of the button and then animate it back to regular size. After that we’ll move the bottom around the screen.

Finally I’ll show you how to create a callback when the animation is finished so that you can do something else in the program.

To create animations, we need to import: from kivy.animation import Animation in our Python file.

Then simply create a variable and set it equal to an Animation() function. Inside that function just declare whatever you want to animate.

Then start your animation with: animate.start(widget)

Python Code:
GitHub Code:

from import App
from kivy.uix.widget import Widget
from kivy.lang import Builder
from kivy.animation import Animation

# Designate Our .kv design file 

class MyLayout(Widget):
	def animate_it(self, widget, *args):
		# Define The Animation you want to do
		animate = Animation(

		# Do second animation
		animate += Animation(
			size_hint = (1,1))

		# Do Third animation
		animate += Animation(
			size_hint = (.5,.5))

		animate += Animation(
			pos_hint = {"center_x": 0.1})

		animate += Animation(
			pos_hint = {"center_x": 0.5})

		# Start The Animation

		# Create a callback
		animate.bind(on_complete = self.my_callback)

	def my_callback(self, *args):
		self.ids.my_label.text = "Wow! Look At That!"

class AwesomeApp(App):
	def build(self):
		return MyLayout()

if __name__ == '__main__':

Kivy Design Code: animations.kv
GitHub Code: animations.kv

		orientation: "vertical"
		size: root.width, root.height
		padding: 50
		spacing: 20

			id: my_label
			text: "Hello World!"
			font_size: 32

			text: "Press Me!"
			font_size: 32
			size_hint: .5, .5
			pos_hint: {"center_x": 0.5}

			on_release: root.animate_it(self)

John Elder

John is the CEO of where he teaches over 100,000 students how to code! He founded one of the Internet's earliest advertising networks and sold it to a publicly company at the height of the first dot com boom. After that he developed the award-winning Submission-Spider search engine submission software that's been used by over 3 million individuals, businesses, and governments in over 42 countries. He's written several Amazon #1 best selling books on coding, and runs a popular Youtube coding channel.

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John Elder