RecommendContentTwo.js
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'use strict';
import React from 'react';
import ReactNative from 'react-native';
import {getSlicedUrl} from '../../../classify/utils/Utils';
import Immutable, {Map} from 'immutable';
import DeviceInfo from 'react-native-device-info';
const {
AppRegistry,
StyleSheet,
Text,
View,
Image,
ListView,
Dimensions,
TouchableOpacity,
PixelRatio,
Platform,
} = ReactNative;
export default class RecommendContentTwo extends React.Component {
constructor(props) {
super(props);
this.dataSource = new ListView.DataSource({
rowHasChanged: (r1, r2) => !Immutable.is(r1, r2),
});
this.renderHeader = this.renderHeader.bind(this);
this.renderRow = this.renderRow.bind(this);
}
shouldComponentUpdate(nextProps){
if (Immutable.is(nextProps.resource, this.props.resource)) {
return false;
} else {
return true;
}
}
renderHeader() {
let fontFamilyStyle = {};
if (Platform.OS === 'ios') {
let systemVersion = DeviceInfo.getSystemVersion();
systemVersion = parseFloat(systemVersion);
if (systemVersion >= 9.0) {
fontFamilyStyle = {fontFamily: 'PingFang SC'};
}
}
let data = this.props.resource.get('data');
let res = data.toJS();
let big_imageData = res.big_image;
let newSrc = getSlicedUrl(big_imageData[0].src, 320, 200, 2);
let url = big_imageData[0].url;
let title = res.title;
return(
<View style={styles.titleView}>
<View style={{width: width,height: 0.5,backgroundColor: '#e5e5e5',}}/>
<View style={styles.title}>
<Text style={[styles.text, fontFamilyStyle]}>{title.title}</Text>
</View>
<TouchableOpacity activeOpacity={0.5} onPress={() => {
this.props.onPressBrandItem && this.props.onPressBrandItem(url);
}}>
<Image
source={{uri: newSrc}}
style={styles.largeImage}
resizeMode={'contain'}
></Image>
</TouchableOpacity>
<View style={{width: width,height: 0.5,backgroundColor: '#e5e5e5',}}/>
</View>
);
}
renderRow(rowData,sectionID,rowID,highlightRow) {
let newSrc = getSlicedUrl(rowData.src, 100, 100, 2);
return (
<TouchableOpacity activeOpacity={0.5} onPress={() => {
this.props.onPressBrandItem && this.props.onPressBrandItem(rowData.url);
}}>
<View style={styles.row}>
<View style={styles.thumbnailV}>
<Image
source={{uri: newSrc}}
style={styles.thumbnail}
// resizeMode={'contain'}
></Image>
</View>
</View>
</TouchableOpacity>
);
}
render() {
let {resource} = this.props;
let data = resource.get('data');
let res = data.toJS();
let big_imageData = res.big_image;
let title = res.title;
let list = res.list;
if (resource && list.length == 0) {
return null;
}
let backgroundWidth = width;
let backgroundHeight = largeImageH + Math.ceil(list.length / 3) * itemWidth + 40;
return (
<View style={{width: backgroundWidth, height:backgroundHeight, backgroundColor:'#f0f0f0'}}>
<ListView
contentContainerStyle={styles.contentContainer}
dataSource={this.dataSource.cloneWithRows(list)}
renderRow={this.renderRow}
renderHeader={this.renderHeader}
enableEmptySections={true}
scrollEnabled={false}
scrollsToTop={false}
/>
</View>
);
}
};
let {width, height} = Dimensions.get('window');
let itemWidth= width/3;
let itemHeight = itemWidth;
let largeImageW = width;
let largeImageH = Math.ceil((200/320)*width);
let styles = StyleSheet.create({
contentContainer: {
flexDirection: 'row',
flexWrap: 'wrap',
alignItems:'flex-start',
},
row: {
width: itemWidth,
height: itemWidth,
backgroundColor: '#e5e5e5',
},
thumbnailV: {
width: itemWidth,
height: itemHeight,
},
thumbnail: {
width: itemWidth-0.5,
height: itemHeight-0.5,
backgroundColor: 'white',
borderRightWidth: 0.5,
borderBottomWidth: 0.5,
borderColor: '#e5e5e5',
},
titleView: {
height: largeImageH+40,
width:width,
backgroundColor: 'white',
},
title: {
alignItems: 'center',
justifyContent: 'center',
height: 39,
width:width,
backgroundColor: 'white',
},
text: {
textAlign: 'center',
fontSize: 16,
fontWeight: 'bold',
color: '#444',
},
largeImage: {
width: largeImageW,
height: largeImageH,
backgroundColor: 'white',
},
});