尝试在kivy上制作一个拉伸图像大小的按钮

from kivy.app import App
from kivy.uix.button import Button
from kivy.uix.image import Image
from kivy.uix.boxlayout import BoxLayout

class StretchButton(BoxLayout):
    def __init__(self, **kwargs):
        super(StretchButton, self).__init__(**kwargs)
        self.orientation = 'vertical'
        self.padding = [10, 10, 10, 10]  # 设置按钮的内边距

        # 创建一个图像组件
        self.image = Image(source='path_to_image.png', allow_stretch=True, keep_ratio=False)
        self.add_widget(self.image)

        # 创建一个按钮组件
        self.button = Button(text='点击按钮')
        self.add_widget(self.button)

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

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