import React, {Component} from 'react';

import {Animated, FlatList, Text, View, StyleSheet}from 'react-native';

import StickyHeaderfrom "./StickyHeader";

exportdefault classMovieListScreen extends Component {

constructor(props) {

super(props);this.state ={

movieList: [1, 2, 3, 4, 5, 7, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8],

scrollY:new Animated.Value(0),

headHeight:-1};

}

_keyExtractor= (item, index) =>index.toString();

_itemDivide= () =>{return ;

};

render() {return(

style={{flex: 1}}

onScroll={

Animated.event(

[{

nativeEvent: {contentOffset: {y: this.state.scrollY}} // 记录滑动距离

}],

{useNativeDriver: true}) // 使用原生动画驱动

}

scrollEventThrottle={1}

>

{

let {height} = e.nativeEvent.layout;

this.setState({headHeight: height}); // 给头部高度赋值

}}>

这是头部

stickyHeaderY={this.state.headHeight} // 把头部高度传入

stickyScrollY={this.state.scrollY} // 把滑动距离传入

>

这是顶部

data={this.state.movieList}

renderItem={this._renderItem}

keyExtractor={this._keyExtractor}

ItemSeparatorComponent={this._itemDivide}/>

)

}

_renderItem= (item) =>{return(

666

);

};

}const styles =StyleSheet.create({

container: {

flex:1,

},

topHeader: {

height:60,

textAlign:"center",

},

tab: {

height:80,

zIndex:999,

textAlign:"center",

backgroundColor:"red"}

});