AppHotBrands.js
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'use strict';
import React from 'react';
import ReactNative from 'react-native';
import Immutable, {Map} from 'immutable';
import HeadTitleCell from '../cell/HeadTitleCell';
import YH_Image from '../../../common/components/YH_Image';
const {
AppRegistry,
StyleSheet,
Text,
View,
Image,
ListView,
Dimensions,
TouchableOpacity,
} = ReactNative;
export default class AppHotBrands extends React.Component {
constructor(props) {
super(props);
}
shouldComponentUpdate(nextProps){
if (Immutable.is(nextProps.data, this.props.data)) {
return false;
} else {
return true;
}
}
render() {
let {title, image, list} = this.props.data.toObject();
let lineNumber = parseInt((list.size + 3) / 4);
if (list.size % 4 == 0) {
lineNumber += 1;
}
let listHeight = Math.ceil(lineNumber * imageHeight);
let containerHeight = 40 + listHeight;
let moreUrl = YH_Image.getSlicedUrl(image.get('src'), width, imageHeight, 2);
let yh_exposureData0 = image.get('yh_exposureData')?image.get('yh_exposureData').toJS():null;
return (
<View style={[styles.container, {height: containerHeight}]}>
<HeadTitleCell title={title.get('title')} />
<View style={[styles.listContainer, {height: listHeight}]}>
{list.map((item, i) => {
let imageUrl = YH_Image.getSlicedUrl(item.get('src'), width, imageHeight, 2);
let yh_exposureData = item.get('yh_exposureData')?item.get('yh_exposureData').toJS():null;
return (
<TouchableOpacity key={i} activeOpacity={1} style={styles.commonImage} yh_exposureData={yh_exposureData} onPress={() => {
this.props.onPressHotBrandItem && this.props.onPressHotBrandItem(item.get('url'),imageUrl ,i);
}}>
<YH_Image url={imageUrl} style={styles.commonImage}/>
</TouchableOpacity>
)
})}
<TouchableOpacity style={styles.lastImage} activeOpacity={1} yh_exposureData={yh_exposureData0} onPress={() => {
this.props.onPressHotBrandItem && this.props.onPressHotBrandItem(image.get('url'), moreUrl, list.size);
}}>
<YH_Image url={moreUrl} style={styles.lastImage}/>
</TouchableOpacity>
<View style={styles.hLine1} />
<View style={styles.vLine1} />
<View style={styles.vLine2} />
<View style={styles.vLine3} />
</View>
</View>
);
}
};
let {width, height} = Dimensions.get('window');
const DEVICE_WIDTH_RATIO = width / 320;
let cellWidth = width/4.0-0.1;
let imageWidth = width / 4;
let imageHeight = Math.floor(87 * DEVICE_WIDTH_RATIO);
let styles = StyleSheet.create({
container: {
backgroundColor: 'white',
width: width,
},
listContainer: {
backgroundColor: 'white',
flexDirection: 'row',
flexWrap: 'wrap',
width: width,
},
commonImage: {
width: imageWidth,
height: imageHeight,
},
lastImage: {
width: imageWidth * 2,
height: imageHeight,
},
vLine1: {
position: 'absolute',
backgroundColor: '#e5e5e5',
width: 0.5,
height: imageHeight * 2,
top: 0,
left: imageWidth,
},
vLine2: {
position: 'absolute',
backgroundColor: '#e5e5e5',
width: 0.5,
height: imageHeight * 2,
top: 0,
left: imageWidth * 2,
},
vLine3: {
position: 'absolute',
backgroundColor: '#e5e5e5',
width: 0.5,
height: imageHeight,
top: 0,
left: imageWidth * 3,
},
hLine1: {
position: 'absolute',
backgroundColor: '#e5e5e5',
width,
height: 0.5,
top: imageHeight,
left: 0,
},
});