renderContentArea.js

state: {
    scrollY: Animated.Value,
} = {
    scrollY: new Animated.Value(0)
};

renderContentArea = () => {
    if (this.props.children) {
        return (
            <ScrollView
                showsVerticalScrollIndicator={false}
                scrollEventThrottle={16}
                onScroll={
                    Animated.event(
                        [{nativeEvent: {contentOffset: {y: this.state.scrollY}}}]
                    )}
            >
                <View style={styles.contentContainer}>
                    {
                        this.props.children
                    }
                </View>
            </ScrollView>
        )
    }
};