Kivy：如何向文本输入添加填充

这里只是一个简单的问题 - 我想在我的文本输入框中添加一些“填充”，以便将其与上面的标签对齐：请参阅here https://pasteboard.co/fx1Sa6ki7.png

以下是我的 .kv 文件的相关部分：

<InstructionsLabel>:
    font_size: 24
    size_hint_y: None
    color: 0.447, 0.094, 0.737, 1
    text_size: root.width, None
    size: self.texture_size
    padding_x: 20

<LengthExactScreen>:
    canvas.before:
        Color:
            rgba: 1, 1, 1, 1
        Rectangle:
            pos: self.pos
            size: self.size
    FloatLayout:
        DirectionButton:
            text: "Back"
            pos_hint: {'left': 1, 'top': 1}
            on_press:
                root.manager.transition.duration = 0
                root.manager.current = "tool_screen"
        DirectionButton:
            text: "Done"
            pos_hint: {'right': 1, 'top': 1}
            on_press: root.compute_orders(root.itemList, int(len_exact_input.text))
    GridLayout:
        cols: 1
        pos_hint: {'top': 0.86}
        BoxLayout:
            size_hint_y: None
            height: self.minimum_height
            orientation: "vertical"
            InstructionsLabel:
                text: "Enter the number of items you want to order"
            TextInput:
                id: len_exact_input
                size_hint: None, None
                width: 300
                height: 35
                multiline: False
                hint_text: ""

TextInput 还有一个 padding 属性。

更改此设置以匹配标签上的填充

TextInput:
    padding_x:[20,0]

Here is a sample App I wrote to see that adopted from your code. Unfortunately, your code has several issues and it was easier to do it like that

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

Builder.load_string("""
<rootwi>:
    orientation: 'vertical'
    Label:
        font_size: 24
        text: 'iuqwdouqwdoqdwpqwpow'
        color: 0.447, 0.094, 0.737, 1
        text_size: root.width, None
        size: self.texture_size
        padding_x: 20
    TextInput:
        padding_x:[20,0]
""")
class rootwi(BoxLayout):
    pass

class MyApp(App):
    def build(self):
        return rootwi()


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