Python kivy.uix.screenmanager 模块，NoTransition() 实例源码

def build(self):
        Window.bind(keyboard_height=self.updateHeight)
        if platform == 'android':
            return MainWidget()

        # the dreaded splash screen code
        from kivy.uix.screenmanager import NoTransition, ScreenManager, Screen
        from kivy.uix.image import Image

        sm = ScreenManager(transition=NoTransition())

        splashScr = Screen(name='SplashScreen')
        splashScr.add_widget(Image(source='misc/splash-desktop.png'))
        sm.add_widget(splashScr)

        mainScr = Screen(name='MainScreen')
        mainScr.add_widget(MainWidget())
        sm.add_widget(mainScr)

        def switchToMainScr(instance):
            sm.current = 'MainScreen'

        Clock.schedule_once(switchToMainScr, 3)

        return sm

def build(self):
        Window.bind(keyboard_height=self.updateHeight)
        if platform == 'android':
            return MainWidget()

        # the dreaded splash screen code
        from kivy.uix.screenmanager import NoTransition, ScreenManager, Screen
        from kivy.uix.image import Image

        sm = ScreenManager(transition=NoTransition())

        splashScr = Screen(name='SplashScreen')
        splashScr.add_widget(Image(source='misc/splash-desktop.png'))
        sm.add_widget(splashScr)

        mainScr = Screen(name='MainScreen')
        mainScr.add_widget(MainWidget())
        sm.add_widget(mainScr)

        def switchToMainScr(instance):
            sm.current = 'MainScreen'

        Clock.schedule_once(switchToMainScr, 3)

        return sm

def build(self):
        # Instantiate Screen Manager and add a child widget-- the Main Screen
        # Root widget is RoboScreenManager
        sm = RoboScreenManager(transition=NoTransition())
        sm.add_widget(MainScreen(name='main'))
        return sm

def build(self):
        sm = RoboScreenManager(transition=NoTransition())
        sm.add_widget(MainScreen(name='main'))
        sm.add_widget(BackButtonScreen(name='back'))
        sm.add_widget(NoHeaderScreen(name='noheader'))
        return sm

def build(self):
        sm = RoboScreenManager(transition=NoTransition())
        sm.add_widget(MainScreen(name='main'))
        return sm

def build(self):
        # Instantiate Screen Manager and add a child widget-- the Main Screen
        # Root widget is RoboScreenManager
        sm = RoboScreenManager(transition=NoTransition())
        sm.add_widget(MainScreen(name='main'))
        return sm

def build(self):
        sm = RoboScreenManager(transition=NoTransition())
        sm.add_widget(MainScreen(name='main'))
        sm.add_widget(BackButtonScreen(name='back'))
        sm.add_widget(NoHeaderScreen(name='noheader'))
        return sm

def build(self):
        sm = RoboScreenManager(transition=NoTransition())
        sm.add_widget(MainScreen(name='main'))
        return sm