campus_react_local/App/views/Login/View/CountryCodeItem.js

/**
 * Created by zack on 2018/6/28.
 */
import {
	View,
	Text,
	StyleSheet,
	TouchableOpacity,
	Image,
	TextInput,
	Keyboard
} from 'react-native'
import React, {Component} from 'react'
import {NavigationBarHeight, TabBarHeight, ScreenDimensions} from '../../../utils/DimensionsTools'

export default class CountryCodeItem extends Component {
	constructor(props) {
		super(props)
		this.state = {
			name: props.name,
			phoneCode: props.phoneCode,
		}
	}

	componentWillReceiveProps(props) {
		this.setState({
			name: props.name,
			phoneCode: props.phoneCode,
		})
	}

	shouldComponentUpdate(nextProps) {
		if (nextProps.name !== this.state.name || nextProps.phoneCode !== this.state.phoneCode) {
			return true
		}

		return false
	}

	render() {
		return(
			<TouchableOpacity onPress={() => {
				this.props.didSelectedItem()
			}} style={styles.View}>
				<Text style={styles.NameText}>{this.state.name}</Text>
				<Text style={styles.PhoneCodeText}>{this.state.phoneCode}</Text>

				<View style={{position: 'absolute', width: ScreenDimensions.width, height: 0.5, backgroundColor: '#efeff4', left: 0, bottom: 0}} />
			</TouchableOpacity>
		)
	}
}

const styles = StyleSheet.create({
	View: {
		width: ScreenDimensions.width,
		height:45,
		flexDirection: 'row',
		justifyContent: 'space-between',
		alignItems: 'center',
	},
	NameText: {
		fontSize: 16,
		color: '#333333',
		marginLeft: 15,
	},
	PhoneCodeText: {
		fontSize: 16,
		color: '#333333',
		marginRight: 45,
	}
})