Kivy在画布上有一个可点击的按钮

from kivy.app import App
from kivy.uix.button import Button
from kivy.uix.floatlayout import FloatLayout

class MyLayout(FloatLayout):
    def __init__(self, **kwargs):
        super(MyLayout, self).__init__(**kwargs)
        
        # 创建按钮并设置其位置和大小
        button = Button(text='Click Me!', size_hint=(0.2, 0.2), pos_hint={'center_x': 0.5, 'center_y': 0.5})
        
        # 绑定按钮的点击事件
        button.bind(on_press=self.on_button_click)
        
        # 将按钮添加到布局中
        self.add_widget(button)
        
    def on_button_click(self, instance):
        # 按钮点击事件的处理逻辑
        print('Button clicked!')

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

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