React native 将本机ScrollView Scroll响应到spring动画_React Native_React Animated_React Native Scrollview

React native 将本机ScrollView Scroll响应到spring动画

react-native

React native 将本机ScrollView Scroll响应到spring动画,react-native,react-animated,react-native-scrollview,React Native,React Animated,React Native Scrollview,我正在使用React Native的ScrollView的scrollTo方法来设置滚动视图的动画。如何使此动画弹簧加载，如动画.spring（不使用第三方库）？跟踪滚动位置 <ScrollView ref={(ref) => { this.scrollView = ref; }} onScroll={(event) => { this.scrollY = event.nativeEvent.contentOffset.y; }}

我正在使用React Native的

ScrollView

的

scrollTo

方法来设置滚动视图的动画。如何使此动画弹簧加载，如

动画.spring

（不使用第三方库）？

跟踪滚动位置

<ScrollView
    ref={(ref) => { this.scrollView = ref; }}
    onScroll={(event) => {
        this.scrollY = event.nativeEvent.contentOffset.y;
    }}
    scrollEventThrottle={16}
>

scrollTo(y) {
    if (!this.scrollY) this.scrollY = 0;
    const animatedValue = new Animated.Value(this.scrollY);
    const id = animatedValue.addListener(({ value }) => {
        this.scrollView.scrollTo({ x: 0, y: value, animated: false });
    });
   Animated.spring(animatedValue, { toValue: y }).start(() => { animatedValue.removeListener(id); /* finished callback */ });
}