campus_react_local/App/views/community/PicAndTextViewController/View/PicAndTextDetailHeaderItem.js

/**
 * Created by zack on 2018/5/22.
 */
import {
	View,
	Text,
	StyleSheet,
	FlatList,
	Platform,
	TouchableOpacity,
	Image
} from 'react-native'
import React, {Component} from 'react'
import {NavigationBarHeight, TabBarHeight, ScreenDimensions} from '../../../../utils/DimensionsTools'
import ImageLoader from 'react-native-smart-image-loader'

export default class PicAndTextDetailHeaderItem extends Component {
	constructor(props) {
		super(props)
		this.state = {
			imageUrls: props.imageUrls,
			title: props.title,
		}
	}

	// componentWillReceiveProps(props) {
	// 	this.setState({
	// 		imageUrls: props.imageUrls,
	// 		title: props.title,
	// 	})
	// }
	//
	// shouldComponentUpdate(nextProps) {
	// 	if (nextProps.imageUrls !== this.state.imageUrls ||
	// 		nextProps.title !== this.state.title
	// 	) {
	// 		return true
	// 	}
	//
	// 	return false
	// }

	renderImageViews() {
		let imageViews = []

		for (let i = 0; i < this.state.imageUrls.length; i ++) {
			let imageLoader =	(
				<ImageLoader
					key = {i}
					style={[styles.ImageView, {marginBottom: (i < 3 ? 8 : 0), marginRight: (i > 0 && (i+ 1)%3 === 0) ? 0 : 8}]}
					options={{
						src: this.state.imageUrls[i],
					}}
				/>)
			imageViews.push(imageLoader)
		}

		return imageViews
	}

	render() {
		return(
			<View style={styles.View}>
				<Text style={styles.TimeText}>{'15分钟前'}</Text>
				<Text style={styles.TitleText}>{this.state.title}</Text>

				<TouchableOpacity onPress={() => {
					this.props.didClickImageViewContainer()
				}} style={styles.ImageContainerView}>
					{this.renderImageViews()}
				</TouchableOpacity>

				<View style={styles.BottomLineView}/>
			</View>
		)
	}
}

const styles = StyleSheet.create({
	View: {
		width: ScreenDimensions.width,
		backgroundColor: 'white'
	},
	TimeText: {
		fontSize: 13,
		color: '#6c6c6c',
		marginTop: 13,
		marginLeft: 23,
	},
	TitleText: {
		fontSize: 16,
		color: '#05120b',
		marginTop: 13,
		marginLeft: 23,
	},
	ImageContainerView: {
		marginTop: 17,
		width: ScreenDimensions.width - 30,
		marginLeft: 15,
		flexDirection: 'row',
		flexWrap: 'wrap',
		marginBottom:  10,
	},
	ImageView: {
		width: (ScreenDimensions.width - 30 - 16)/3.0,
		height: (ScreenDimensions.width - 30 - 16)/3.0,
	},
	BottomLineView: {
		width: ScreenDimensions.width,
		height: 8,
		backgroundColor: '#efeff4'
	}
})