在ScrollView - Kivy中滚动GridLayout的内容

from kivy.app import App
from kivy.uix.scrollview import ScrollView
from kivy.uix.gridlayout import GridLayout

class MyGridLayout(GridLayout):
    def __init__(self, **kwargs):
        super(MyGridLayout, self).__init__(**kwargs)
        self.cols = 1  # 设置为1列，使内容垂直排列
        self.size_hint_y = None  # 禁用自动调整高度
        self.bind(minimum_height=self.setter('height'))  # 绑定高度变化事件

        # 添加内容组件
        for i in range(50):
            label = Label(text=f'Label {i}', size_hint_y=None, height=40)
            self.add_widget(label)

class MyApp(App):
    def build(self):
        scrollview = ScrollView()
        gridlayout = MyGridLayout()
        scrollview.add_widget(gridlayout)
        return scrollview

if __name__ == '__main__':
    MyApp().run()