kivy入门初级控件(一)

异步加载图片

 1 from kivy.app import App
 2 from kivy.uix.gridlayout import GridLayout
 3 from kivy.uix.image import Image, AsyncImage
 4 
 5 
 6 class ImageBoxLayout(GridLayout):
 7     ...
 8 
 9 
10 class TestApp(App):
11     def build(self):
12         self.title = "测试标题"
13         return ImageBoxLayout()
14 
15 
16 if __name__ == '__main__':
17     TestApp().run()

kv语言：

 1 <ImageBoxLayout>:
 2     canvas:
 3         Color:
 4             rgba:[1,1,1,1]
 5         Rectangle:
 6             size:self.size
 7             pos:self.pos
 8             source:"20190701154816.jpg"
 9     AsyncImage:
10         source:"https://gimg2.baidu.com/image_search/src=http%3A%2F%2Fp3.itc.cn%2Fimages01%2F20200831%2F4e9b481826124821aeec987d9d0c880f.jpeg&refer=http%3A%2F%2Fp3.itc.cn&app=2002&size=f9999,10000&q=a80&n=0&g=0n&fmt=auto?sec=1656201638&t=b9a5406b7d1b0c993116a1ab0df96b37"

运行结果显示：