BrandSwiper.js
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'use strict';
import React from 'react';
import ReactNative from 'react-native';
import Swiper from 'react-native-swiper';
import ImmutablePropTypes from 'react-immutable-proptypes';
import SlicedImage from '../../../common/components/SlicedImage';
import Immutable, {Map} from 'immutable';
import YH_Image from '../../../common/components/YH_Image';
import {getSlicedUrl} from '../../utils/Utils';
import DeviceInfo from 'react-native-device-info';
const {
View,
Image,
TouchableOpacity,
StyleSheet,
Dimensions,
Platform,
} = ReactNative;
export default class BrandSwiper extends React.Component {
constructor(props) {
super (props);
this.dot = <View
style={{
backgroundColor:'rgba(237, 237, 237, 0.5)',
width: 6,
height: 6,
borderRadius: 3,
marginLeft: 3,
marginRight: 3,
marginTop: 0,
}}
/>;
this.activeDot = <View
style={{
backgroundColor:'white',
width: 6,
height: 6,
borderRadius: 3,
marginLeft: 3,
marginRight: 3,
marginTop: 0,
}}
/>;
//A版比例640X330 B版比例640X310
height = this.props.abversion == "B" ? Math.ceil((310 / 640) * width) : Math.ceil((330 / 640) * width);
}
shouldComponentUpdate(nextProps){
if (Immutable.is(nextProps.resource, this.props.resource)) {
return false;
} else {
return true;
}
}
render() {
let {resource, abversion} = this.props;
let banner = resource.get('banner');
let res = banner.toJS();
let list = res.data;
if (!banner || banner.size == 0 || !list) {
return null;
}
let needYH_Image = false;
if (Platform.OS === 'ios') {
let systemVersion = DeviceInfo.getSystemVersion();
systemVersion = parseFloat(systemVersion);
if (systemVersion < 8.0) {
needYH_Image = true;
}
}
if (list.length == 1) {
let newSrc = getSlicedUrl(list[0].src, width, height);
return (
<View style={styles.container}>
<TouchableOpacity
activeOpacity={1}
style={{width: width, height: height-15}}
onPress={() => {
this.props.onPressSlideItem && this.props.onPressSlideItem(list[0].url, 0);
}}
>
{needYH_Image ? <YH_Image
url={newSrc}
style={{width, height}}
/> : <SlicedImage source={{uri: list[0].src}} style={{width, height}}/>}
</TouchableOpacity>
</View>
);
} else {
return (
<View style={styles.container}>
<Swiper
style={styles.banner}
showsButtons={false}
loop={true}
autoplay={true}
autoplayTimeout={3}
dot={this.dot}
activeDot={(Platform.OS === 'ios')?this.activeDot:null}
width={width}
height={height+15}
paginationStyle={{backgroundColor: 'rgba(0,0,0,0.2)',bottom: 25,height: 10,width: list.length * 12,borderRadius: 5,marginLeft: (width-list.length * 12)/2}}
>
{list.map((item, i) => {
let newSrc = getSlicedUrl(item.src, width, height, 2);
return (
<TouchableOpacity
key={i}
activeOpacity={1}
onPress={() => {
this.props.onPressSlideItem && this.props.onPressSlideItem(item.url, i);
}}
>
{needYH_Image?<YH_Image
url={newSrc}
style={{width, height:height}}
/>:<SlicedImage source={{uri: item.src}} style={{width, height:height}}/>}
</TouchableOpacity>
);
})}
</Swiper>
</View>
);
}
}
}
let {width} = Dimensions.get('window');
let height ;
let styles = StyleSheet.create({
container: {
width: width,
height: height,
backgroundColor:'#f0f0f0',
},
banner: {
},
});