ShareDetail.js
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import React, { Component, PureComponent } from 'react';
import { Dimensions, ScrollView, StyleSheet, Text, TouchableOpacity, View } from 'react-native';
const { width } = Dimensions.get('window');
export default class ShareDetail extends Component {
state = { opacity: 0 }
render() {
return (
<View style={styles.container}>
<View style={{backgroundColor: 'black', height: 42, width, opacity: this.state.opacity, position: 'absolute', top: 0, zIndex: 10}}>
</View>
<View style={{backgroundColor: 'black', height: 24, width: 24, opacity: 0.5 - this.state.opacity, borderWidth: 1, borderColor: 'transparent', borderRadius: 12, position: 'absolute', top: 9, left: 20}} />
<ScrollView
style={styles.container}
contentContainerStyle={styles.contentContainerStyle}
showsVerticalScrollIndicator={false}
onScroll={(e) => this.changeOpacity(e)}>
<View style={[styles.imgContainer]}>
</View>
<View style={styles.nameContainer}>
<Text style={styles.name}>HUMAN MADE 字母印花圆领T恤</Text>
</View>
<View style={[styles.priceContainer, styles.border]}>
<Text style={styles.price}>￥ 99.9</Text>
<Text style={styles.origPrice}>￥ 239</Text>
</View>
<View style={[styles.promContainer, styles.border]}>
<Text style={styles.proDesc}>新客订单返现10%，老客订单返现3%（预计最高返现￥9.9）</Text>
</View>
<View style={[styles.recommendContainer, styles.border]}>
<TouchableOpacity onPress={() => null}>
<Text style={styles.recommendText}>查看其它推荐商品</Text>
</TouchableOpacity>
</View>
</ScrollView>
<View style={[styles.bottomBar, styles.border]}>
<View style={[styles.favContainer, styles.center]}>
<TouchableOpacity onPress={() => null} style={styles.favorite} />
</View>
<View style={styles.buttonContainer}>
<TouchableOpacity onPress={() => null}>
<View style={[styles.button, styles.center]}>
<Text style={styles.btnText}>查看商品详情</Text>
</View>
</TouchableOpacity>
<TouchableOpacity onPress={() => null}>
<View style={[styles.button, styles.center, styles.red]}>
<Text style={styles.btnText}>分享可赚￥9.9</Text>
</View>
</TouchableOpacity>
</View>
</View>
</View>
);
}
changeOpacity(e) {
let opacity = 1 - (600 - e.nativeEvent.contentOffset.y) / 600;
this.setState({opacity: opacity < 0.5 ? opacity : 0.5});
console.log(e.nativeEvent.contentOffset.y);
}
}
const styles = StyleSheet.create({
container: {
flex: 1,
},
contentContainerStyle: {
height: 1000,
},
center: {
justifyContent: 'center',
alignItems: 'center',
},
imgContainer: {
flex: 1,
},
nameContainer: {
height: 46,
paddingLeft: 20,
backgroundColor: '#393939',
justifyContent: 'center',
},
name: {
color: '#fff',
},
border: {
borderTopWidth: 1,
borderColor: '#5d5d5d'
},
priceContainer: {
height: 46,
paddingLeft: 20,
flexDirection: 'row',
alignItems: 'center',
},
price: {
fontSize: 16,
fontWeight: '500',
color: '#D0021B'
},
origPrice: {
color: '#909090',
marginLeft: 12
},
promContainer: {
height: 46,
paddingLeft: 20,
flexDirection: 'row',
alignItems: 'center',
},
proDesc: {
color: '#909090',
fontSize: 10,
},
recommendContainer: {
height: 80,
justifyContent: 'center',
alignItems: 'center',
},
recommendText: {
fontWeight: '500',
fontSize: 12,
},
bottomBar: {
flexDirection: 'row',
height: 64,
alignItems: 'center',
},
favContainer: {
width: width / 5,
},
favorite: {
height: 24,
width: 24,
borderWidth: 1,
borderRadius: 12,
marginHorizontal: 25
},
buttonContainer: {
flex: 1,
marginRight: 20,
flexDirection: 'row',
justifyContent: 'space-between',
},
button: {
backgroundColor: 'black',
borderRadius: 3,
height: 50,
width: width / 3,
},
red: {
backgroundColor: '#D0021B'
},
btnText: {
color: '#fff',
fontSize: 13,
}
})