如何在scrollview kivy中添加carosel

from kivy.uix.scrollview import ScrollView
from kivy.uix.carousel import Carousel
from kivy.uix.image import Image
from kivy.uix.boxlayout import BoxLayout

layout = BoxLayout(orientation='vertical')
scrollview = ScrollView()
carousel = Carousel()

image1 = Image(source='image1.jpg')
image2 = Image(source='image2.jpg')
image3 = Image(source='image3.jpg')

carousel.add_widget(image1)
carousel.add_widget(image2)
carousel.add_widget(image3)

scrollview.add_widget(carousel)

layout.add_widget(scrollview)

from kivy.app import App

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

MyApp().run()