尝试在kivy上制作一个拉伸图像大小的按钮

pip install kivy

from kivy.app import App
from kivy.uix.button import Button
from kivy.uix.image import Image
from kivy.uix.relativelayout import RelativeLayout

class StretchImageButton(Button):
    def __init__(self, **kwargs):
        super(StretchImageButton, self).__init__(**kwargs)
        self.background_normal = ''  # Remove default background
        self.background_down = ''  # Remove default background when pressed
        self.image = Image(source='your_image.png', allow_stretch=True, keep_ratio=False)
        self.add_widget(self.image)

    def on_size(self, *args):
        self.image.size = self.size

class MyApp(App):
    def build(self):
        layout = RelativeLayout()
        button = StretchImageButton(text='Click Me', size_hint=(0.5, 0.5), pos_hint={'center_x': 0.5, 'center_y': 0.5})
        layout.add_widget(button)
        return layout

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