Python Kivy - Transições do ScreenManager смотреть онлайн

Este vídeo apenas mostra os efeitos de transição do ScreenManager do kivy.

Gravado num galaxy S20 FE no modo DEX e IDE PyDroid 3.

Acesse o site oficial: https://kivy.org/

Leia a documentação: https://media.readthedocs.org/pdf/kivy/latest/kivy.pdf

Código fonte:
Arquivo py
#######################
#Transitions in Kivy ScreenManager
from kivy.app import App
from kivy.uix.label import Label
from kivy.uix.screenmanager import ScreenManager, Screen, NoTransition, SlideTransition, CardTransition, SwapTransition, FadeTransition, WipeTransition, FallOutTransition, RiseInTransition

class Transitions(ScreenManager):
pass

class TelaApp(App):
def build(self):
transition = RiseInTransition()
#transition.duration = 1 #default is .2
#transition.direction= 'up' #left, right, up, down. default is left
t = Transitions()
t.transition = transition
print(RiseInTransition.__dict__)
return t

TelaApp().run()
##########################
Arquivo kv
##########################
Transitions:( insira os sinais de 'menor que' e 'maior que' )
Screen:
name: 'tela_princ'
BoxLayout:
Label:
text: 'SCREEN \n1'
font_size: '50sp'
Button:
text: 'Change'
on_release: root.current = 'tela_dois'
Screen:
name: 'tela_dois'
BoxLayout:
orientation: 'vertical'
Label:
text: 'SCREEN 2'
font_size: '50sp'
Button:
text: 'Back'
on_release: root.current = 'tela_princ'