在kivy scrollview中可调整的textinput

Question

我是Kivy的新手。我想在textInput大小适合内容的情况下动态地在Kivy scrollView中正确显示多个textInput。当gridLayout的高度设置为1000时，当前代码只显示3。我想使用height：self.minimum_height，这样我可以动态添加更多textInputs，它们将正确显示，但似乎无法让它工作

我的kv档案：

<MyNote@BoxLayout>:
    orientation: 'vertical'

    TextInput:
        height: self.minimum_height
        multiline: True
        text_size: self.size
        size_hint_y: None
        text: '1\n2\n3\n4\n5\n6\n7\n8\n9\n10\n11\n12\n13\n14\n15'

<MainNotesBoxLayout>
    orientation: 'vertical'

    ScrollView:
        GridLayout:
            cols: 1
            size_hint_y: None

            height: 1000
            #height: self.minimum_height

            MyNote:
            MyNote:
            MyNote:

我的主要档案：

import kivy
from kivy.app import App
from kivy.uix.boxlayout import BoxLayout

class MainNotesBoxLayout(BoxLayout):
    pass

class NotesApp(App):
    def build(self):
        return MainNotesBoxLayout()

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

Answer 1

1. 将BoxLayout替换为BoxLayout
2. 设置boxlayout的最小高度，以便滚动。

ScrollView

  

layout.bind（minimum_height = layout.setter（ '高度'））

实施例

notes.py

from kivy.app import App
from kivy.uix.boxlayout import BoxLayout
from kivy.uix.textinput import TextInput
from kivy.properties import ObjectProperty


class MyNote(TextInput):
    pass


class MainNotesBoxLayout(BoxLayout):
    container = ObjectProperty(None)

    def __init__(self, **kwargs):
        super(MainNotesBoxLayout, self).__init__(**kwargs)
        self.container.bind(minimum_height=self.container.setter('height'))
        self.add_text_inputs()

    def add_text_inputs(self):
        for x in range(100):
            my_note = MyNote()
            self.container.add_widget(my_note)


class NotesApp(App):
    def build(self):
        return MainNotesBoxLayout()


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

notes.kv

#:kivy 1.10.0

<MyNote>:
    height: self.minimum_height
    multiline: True
    text_size: self.size
    size_hint_y: None
    text: '1\n2\n3\n4\n5\n6\n7\n8\n9\n10\n11\n12\n13\n14\n15'

<MainNotesBoxLayout>
    container: container
    orientation: 'vertical'

    ScrollView:
        size_hint: (1, 1)
        bar_width: 10
        bar_color: 1, 0, 0, 1   # red
        bar_inactive_color: 0, 0, 1, 1   # blue
        effect_cls: "ScrollEffect"
        scroll_type: ['bars']


        BoxLayout:
            id: container
            orientation: 'vertical'
            size_hint: 1, None

输出