ScrollView中的边界高度是多少

Question

这是什么意思？(https://facebook.github.io/react-native/docs/scrollview)

请记住ScrollViews必须具有有界高度才能使用

谁必须拥有所谓的有界高度？ScrollView本身？还是它的父母？还是它的孩子？

<SafeAreaView style={{height: ...}}> <= this?
<ScrollView style={{height: ...}}> <= this?
<View style={{height: ...}}> <= this?
....
</View>
</ScrollView>
</SafeAreaView>

Answer 1

据我所知，它是ScrollView的父级的高度。

<SafeAreaView style={styles.container}>
<ScrollView style={styles.scrollView}>
......
......
</ScrollView>
</SafeAreaView>
const styles = StyleSheet.create({
container: {
flex: 1,
},