43 lines
1.3 KiB
Python
43 lines
1.3 KiB
Python
'''
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Widget animation
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================
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This example demonstrates creating and applying a multi-part animation to
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a button widget. You should see a button labelled 'plop' that will move with
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an animation when clicked.
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'''
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import kivy
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kivy.require('1.0.7')
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from kivy.animation import Animation
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from kivy.app import App
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from kivy.uix.button import Button
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class TestApp(App):
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def animate(self, instance):
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# create an animation object. This object could be stored
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# and reused each call or reused across different widgets.
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# += is a sequential step, while &= is in parallel
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animation = Animation(pos=(100, 100), t='out_bounce')
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animation += Animation(pos=(200, 100), t='out_bounce')
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animation &= Animation(size=(500, 500))
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animation += Animation(size=(100, 50))
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# apply the animation on the button, passed in the "instance" argument
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# Notice that default 'click' animation (changing the button
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# color while the mouse is down) is unchanged.
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animation.start(instance)
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def build(self):
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# create a button, and attach animate() method as a on_press handler
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button = Button(size_hint=(None, None), text='plop',
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on_press=self.animate)
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return button
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if __name__ == '__main__':
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TestApp().run()
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