我如何知道Image在Kivy中是否正在播放或已经结束？

if image.state == 'play':
    print("图像正在播放")
elif image.state == 'stop':
    print("图像已经停止")

def on_image_load(instance):
    if instance.is_loaded:
        print("图像加载完成")
        
image.bind(on_load=on_image_load)

def on_image_anim_complete(instance):
    if instance.anim_delay == 0:
        print("图像动画播放完成")

image.bind(on_anim_complete=on_image_anim_complete)