Python Kivy - 将GridLayout添加到BoxLayout

Question

我想在顶部创建一个带有按钮的UI，在底部创建一些标签，如果标签超出高度，则应该可滚动。

这样的事情：

到目前为止，这是我的代码：

from kivy.app import App
from kivy.uix.button import Button
from kivy.uix.label import Label
from kivy.uix.boxlayout import BoxLayout
from kivy.uix.scrollview import ScrollView
from kivy.uix.gridlayout import GridLayout

class MyApp(App):

    main_layout = BoxLayout(orientation='vertical')
    top_layout = BoxLayout(orientation='horizontal')

    scrollView = ScrollView()
    gridLayout = GridLayout()
    gridLayout.cols = 1
    gridLayout.minimum_height = 10
    gridLayout.padding = [0, 0, 0, 0]
    scrollView.add_widget(gridLayout)

    main_layout.add_widget(top_layout)
    main_layout.add_widget(scrollView)

    def btn_create(self, instance):
        self.gridLayout.add_widget(Label(text='test'))

    def btn_edit(self, instance):
        pass

    def btn_delete(self, instance):
        pass

    def build(self):
        self.top_layout.size_hint=(1, .1)

        # Button 'Erstellen'
        btnCreate = Button()
        btnCreate.text = 'Erstellen'
        btnCreate.bind(on_press=self.btn_create)

        # Button 'Bearbeiten'
        btnEdit = Button()
        btnEdit.text = 'Bearbeiten'
        btnEdit.bind(on_press=self.btn_edit)

        # Button 'Löschen'
        btnDelete = Button()
        btnDelete.text = 'Löschen'
        btnDelete.bind(on_press=self.btn_delete)

        self.top_layout.add_widget(btnCreate)
        self.top_layout.add_widget(btnEdit)
        self.top_layout.add_widget(btnDelete)

        return self.main_layout

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

我在ScrollView中添加了一个GridLayout，但这似乎不起作用。

如何制作可滚动列表？

Answer 1

您必须将GridLayout的size_hint_y设置为None，以使高度不依赖于ScrollView，并且大小最小等于GridLayout的大小。另一方面，Label必须将size_hint_y设置为None，以使高度不依赖于GridLayout。

from kivy.app import App
from kivy.uix.button import Button
from kivy.uix.label import Label
from kivy.uix.boxlayout import BoxLayout
from kivy.uix.scrollview import ScrollView
from kivy.uix.gridlayout import GridLayout

class MyApp(App):

    main_layout = BoxLayout(orientation='vertical')
    top_layout = BoxLayout(orientation='horizontal')

    scrollView = ScrollView()
    gridLayout = GridLayout(size_hint_y=None)

    gridLayout.cols = 1
    gridLayout.padding = [0, 0, 0, 0]
    gridLayout.bind(minimum_height=gridLayout.setter('height'))
    scrollView.add_widget(gridLayout)

    main_layout.add_widget(top_layout)
    main_layout.add_widget(scrollView)

    def btn_create(self, instance):
        self.gridLayout.add_widget(Label(text='test', size_hint_y=None))

    def btn_edit(self, instance):
        pass

    def btn_delete(self, instance):
        pass

    def build(self):
        self.top_layout.size_hint=(1, .1)

        # Button 'Erstellen'
        btnCreate = Button()
        btnCreate.text = 'Erstellen'
        btnCreate.bind(on_press=self.btn_create)

        # Button 'Bearbeiten'
        btnEdit = Button()
        btnEdit.text = 'Bearbeiten'
        btnEdit.bind(on_press=self.btn_edit)

        # Button 'Löschen'
        btnDelete = Button()
        btnDelete.text = 'Löschen'
        btnDelete.bind(on_press=self.btn_delete)

        self.top_layout.add_widget(btnCreate)
        self.top_layout.add_widget(btnEdit)
        self.top_layout.add_widget(btnDelete)

        return self.main_layout

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