kivy 滑动

from kivy.uix.gridlayout import GridLayout

from kivy.app import App

from kivy.lang.builder import Builder

from kivy.uix.scrollview import ScrollView

from kivy.uix.button import Button

Builder.load_string('''

<G>

    spacing: '10dp'

    cols: 1

    size_hint_y: None

    B:

<B>

    text: ''

    size_hint_y: None

    height: '40dp'

    on_release: self.parent.click(self)

<S>

    size_hint: 1, None

    size: ('400dp', '600dp')

    G:

''')

class G(GridLayout):

    def click(self, instance):

        self.bind(minimum_height = self.setter('height'))

        for i in range(100):

            a = B()

            a.text = str(i)

            self.add_widget(a)

class B(Button):

    pass

class S(ScrollView):

    pass

class MyApp(App):

    def build(self):

        return S()

if __name__ == '__main__':

    MyApp().run()

　　

from kivy.uix.gridlayout import GridLayout

from kivy.uix.button import Button

from kivy.uix.scrollview import ScrollView

from kivy.core.window import Window

from kivy.app import runTouchApp

layout = GridLayout(cols=1, spacing=10, size_hint_y=None)

# Make sure the height is such that there is something to scroll.

layout.bind(minimum_height=layout.setter('height'))    #******必须指定..................

print(layout.setter('height'))

for i in range(100):

    btn = Button(text=str(i), size_hint_y=None, height=40)

    layout.add_widget(btn)

root = ScrollView(size_hint=(1, None), size=(Window.width, Window.height))

root.add_widget(layout)

runTouchApp(root)