好客租房130-获取顶部导航信息

 获取顶部导航城市信息

1打开百度地图api文档

2通过ip定位获取当前城市名称

3调用我们服务器的接口 换取项目中的城市信息

import React from 'react'
import axios from 'axios'
//留白
import { Carousel, Flex, Grid, WingBlank } from 'antd-mobile'
import Nav1 from '../../assets/images/nav-1.png'
import Nav2 from '../../assets/images/nav-2.png'
import Nav3 from '../../assets/images/nav-3.png'
import Nav4 from '../../assets/images/nav-4.png'

import Body1 from '../../assets/images/1.png'
import Body2 from '../../assets/images/2.png'
import Body3 from '../../assets/images/3.png'
import Body4 from '../../assets/images/4.png'
//导入样式
import './index.scss'

const navs = [
	{
		id: 1,
		img: Nav1,
		title: '整租',
		path: '/home/list',
	},
	{
		id: 2,
		img: Nav2,
		title: '合租',
		path: '/home/list',
	},
	{
		id: 3,
		img: Nav3,
		title: '地图找房',
		path: '/home/list',
	},
	{
		id: 4,
		img: Nav4,
		title: '去出租',
		path: '/home/list',
	},
]
const data = Array.from(new Array(4)).map((_val, i) => ({
	icon: `Body${i + 1}`,
	text: `name${i}`,
}))
// navigator.geolocation.getCurrentPosition(position=>{
//     console.log("当前信息位置1",position)
// })
// 轮播图不会自动播放  数据返回过来的时候高度不够 数据加载前后数据的问题
class Index extends React.Component {
	state = {
		data: ['1', '2', '3'],
		imgHeight: 212,
		isSwiperLoding: false,
		groups: [],
		swiper: [],
		news: [],
        curCityName:"苏州"
	}
	componentDidMount() {
		// simulate img loading
		this.getGroups()
		this.getSwipers()
		this.getNews()
		setTimeout(() => {
			this.setState({
				data: [
					'AiyWuByWklrrUDlFignR',
					'TekJlZRVCjLFexlOCuWn',
					'IJOtIlfsYdTyaDTRVrLI',
				],
				isSwiperLoding: true,
			})
		}, 100)
        //通过ip定位获取当前城市名称
        const curCity=new window.BMapGL.LocalCity()
        curCity.get(async res=>{
            console.log("当前城市信息:",res)
           const result=await axios.get(`http://localhost:8080/area/info?name=${res}`)
           console.log(result,"result")
           this.setState({
               curCityName:result.data.body.label
           })
        })
	}
	// 获取最新资讯
	async getNews() {
		const res = await axios.get(
			'http://localhost:8080/home/news?area=AREA%7C88cff55c-aaa4-e2e0'
		)
		console.log('最新资讯数据为:', res)
		this.setState({
			news: res.data.body,
		})
	}
	async getSwipers() {
		const res = await axios.get('http://localhost:8080/home/swiper')
		console.log('轮播如数据为:', res)
		this.setState({
			swiper: res.data.body,
		})
	}
	async getGroups() {
		const res = await axios.get('http://localhost:8080/home/groups', {
			params: {
				area: 'AREA%7C88cff55c-aaa4-e2e0',
			},
		})
		console.log('小组数据为:', res)
		this.setState({
			groups: res.data.body,
		})
	}

	//渲染轮播图的方法
	renderSwipers() {
		return this.state.swiper.map((val) => (
			<a
				key={val.id}
				href="http://www.alipay.com"
				style={{
					display: 'inline-block',
					width: '100%',
					height: this.state.imgHeight,
				}}
			>
				<img
					src={`http://localhost:8080${val.imgSrc}`}
					alt=""
					style={{ width: '100%', verticalAlign: 'top' }}
					onLoad={() => {
						// fire window resize event to change height
						window.dispatchEvent(new Event('resize'))
						this.setState({ imgHeight: 'auto' })
					}}
				/>
			</a>
		))
	}
	//渲染最新资讯
	renderNews() {
		console.log(this.state.news, 'newsssss')
		return this.state.news.map((item) => (
			<div className="news-item" key={item.id}>
				<div className="imgwrap">
					<img
						className="img"
						src={`http://localhost:8080${item.imgSrc}`}
						alt=""
					/>
				</div>
				<Flex className="content" direction="column" justify="between">
					<h3 className="title">{item.title}</h3>
					<Flex className="info" justify="between">
						<pan>{item.from}</pan>
						<pan>{item.date}</pan>
					</Flex>
				</Flex>
			</div>
		))
	}
	//渲染导航菜单
	renderNavs() {
		return navs.map((item) => (
			<Flex.Item
				key={item.id}
				onClick={() => {
					this.props.history.push(item.path)
				}}
			>
				<img src={item.img} alt="" />
				<h2>{item.title}</h2>
			</Flex.Item>
		))
	}
	//渲染资讯

	render() {
		return (
			//留白 WingBlank
			<div className="index">
				<div className="swiper">
					{this.state.isSwiperLoding === true ? (
						<Carousel
							//自动播放
							autoplay={true}
							infinite
							//   beforeChange={(from, to) => console.log(`slide from ${from} to ${to}`)}
							//   afterChange={index => console.log('slide to', index)}
						>
							{this.renderSwipers()}
						</Carousel>
					) : (
						''
					)}
					{/* 搜索框 */}
					<Flex className="search-box">
						{/* 左侧白色区域 */}
						<Flex className="search">
							{/* 位置 */}
							<div
								className="location"
								onClick={() =>
									this.props.history.push('/citylist')
								}
							>
								<span className="name">{this.state.curCityName}</span>
								<i className="iconfont icon-arrow" />
							</div>

							{/* 搜索表单 */}
							<div
								className="form"
								onClick={() =>
									this.props.history.push('/search')
								}
							>
								<i className="iconfont icon-seach" />
								<span className="text">请输入小区或地址</span>
							</div>
						</Flex>
						{/* 右侧地图图标 */}
						<i
							className="iconfont icon-map"
							onClick={() => this.props.history.push('/map')}
						/>
					</Flex>
				</div>

				<Flex square={false} className="nav">
					{this.renderNavs()}
				</Flex>
				{/* 租房小组 */}
				<div className="group">
					<h3 className="group-title">
						租房小组:<span className="more">更多</span>
					</h3>
					{/* 宫格组件 */}
					<Grid
						data={this.state.groups}
						columnNum={2}
						square={false}
						hasLine={false}
						renderItem={(item) => (
							<Flex
								className="group-item"
								justify="around"
								key={item.id}
							>
								<div className="desc">
									<p className="title">{item.title}</p>
									<span className="info">{item.desc}</span>
								</div>
								<img
									src={`http://localhost:8080${item.imgSrc}`}
									alt=""
								/>
							</Flex>
						)}
					/>
				</div>
				<div className="news">
					<h3 className="group-title">最新资讯</h3>
					<WingBlank size="md">{this.renderNews()}</WingBlank>
				</div>
			</div>
		)
	}
}

export default Index

运行结果