kivy入门初级控件(一)

异步加载图片

from kivy.app import App
from kivy.uix.gridlayout import GridLayout
from kivy.uix.image import Image, AsyncImage


class ImageBoxLayout(GridLayout):
    ...


class TestApp(App):
    def build(self):
        self.title = "测试标题"
        return ImageBoxLayout()


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

kv语言：

<ImageBoxLayout>:
    canvas:
        Color:
            rgba:[1,1,1,1]
        Rectangle:
            size:self.size
            pos:self.pos
            source:"20190701154816.jpg"
    AsyncImage:
        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"

运行界面显示：