test_anim_disable.py

'''
'''
from kivy.app import App
from kivy.lang import Builder
from kivy.animation import Animation


KV = '''
FloatLayout:
    Button:
        id: btn1
        size_hint: None, None
        size: '100dp', '48dp'
        text: 'hit me'
        pos_hint: {'center': (.25, .5)}
        on_press:
            app.animate(btn2)
    Button:
        id: btn2
        size_hint: None, None
        size: '100dp', '48dp'
        text: 'or hit me'
        pos_hint: {'center': (.75, .5)}
        on_press:
            app.animate(btn1)
'''

class Application(App):
    def build(self):
        return Builder.load_string(KV)

    def animate(self, button):
        button.disabled = True
        anim = Animation(opacity=0, duration=0.2)
        anim += Animation(opacity=0, duration=4.8)
        anim += Animation(opacity=1, duration=0.2)

        def enable(*args):
            button.disabled = False

        anim.bind(on_complete=enable)
        anim.start(button)

def enable_play_button_again(self, dt):
    print('Activating play button')
    self.play_button.disabled = False

if __name__ == "__main__":
    Application().run()