在数据表Kivy/KivyMD中动态添加一行

from kivy.app import App
from kivy.uix.boxlayout import BoxLayout
from kivy.uix.button import Button
from kivy.uix.label import Label
from kivy.uix.textinput import TextInput

class DataTable(BoxLayout):
    def __init__(self, **kwargs):
        super(DataTable, self).__init__(**kwargs)
        self.orientation = 'vertical'

        # 创建表头
        header = BoxLayout(size_hint=(1, None), height=30)
        header.add_widget(Label(text='列1'))
        header.add_widget(Label(text='列2'))
        header.add_widget(Label(text='列3'))
        self.add_widget(header)

        # 创建初始行
        initial_row = BoxLayout(size_hint=(1, None), height=30)
        initial_row.add_widget(TextInput())
        initial_row.add_widget(TextInput())
        initial_row.add_widget(TextInput())
        self.add_widget(initial_row)

    # 添加新行
    def add_row(self, *args):
        new_row = BoxLayout(size_hint=(1, None), height=30)
        new_row.add_widget(TextInput())
        new_row.add_widget(TextInput())
        new_row.add_widget(TextInput())
        self.add_widget(new_row)

class MyApp(App):
    def build(self):
        layout = BoxLayout(orientation='vertical')

        data_table = DataTable()
        layout.add_widget(data_table)

        add_button = Button(text='添加行')
        add_button.bind(on_release=data_table.add_row)
        layout.add_widget(add_button)

        return layout

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