我是新来的反应传单。需要一点帮助来解决我的问题。跟进Previous post
我有过滤数据的文本字段。我能够过滤表中的数据，但无法过滤地图中的数据。 例如：如果我搜索名称：“ VaiBike”，它应显示在表格中并显示在地图中。注意：仅显示在地图以及表格中过滤的数据。其他数据也是如此。
如何更改代码，以便可以同时在表中显示标记和数据。
运行代码
import React, { Component } from 'react'
import { Map, TileLayer, Marker, Popup } from 'react-leaflet'
import './style.css'
import 'leaflet/dist/leaflet.css'
import L from 'leaflet'
import icon from 'leaflet/dist/images/marker-icon.png'
import iconShadow from 'leaflet/dist/images/marker-shadow.png'
import TextField from '@material-ui/core/TextField'
// Import React Table
import ReactTable from 'react-table'
import 'react-table/react-table.css'
import matchSorter from 'match-sorter'
var myIcon = L.icon({
iconUrl:
'data:image/png;base64,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',
iconSize: [25, 41],
iconAnchor: [12.5, 41],
popupAnchor: [0, -41],
})
let DefaultIcon = L.icon({
iconUrl: icon,
shadowUrl: iconShadow,
})
L.Marker.prototype.options.icon = DefaultIcon
export default class App extends Component {
constructor(props) {
super(props)
this.state = {
location: {
lat: 51.505,
lng: -0.09,
filterAll: '',
},
bikeData: [],
haveUsersLocation: false,
zoom: 3,
}
}
//lifecycle method to get the bike information
componentDidMount() {
fetch('https://api.citybik.es/v2/networks')
.catch(error => {
console.log(error)
})
.then(res => res.json())
.then(response => {
const networkData = response.networks
this.setState({
bikeData: networkData,
})
})
}
filterAll = e => {
const { value } = e.target
const filterAll = value
const filtered = [{ id: 'all', value: filterAll }]
const filterdMap =[{id:'bikeData', value: filterAll}]
this.setState({ filterAll, filtered ,filterdMap})
}
render() {
const position = [this.state.location.lat, this.state.location.lng]
const bikeData = this.state.bikeData
return (
<div
style={{
height: '100vh',
}}
id="map"
>
<div align="right">
<form noValidate autoComplete="off">
<TextField
id="row"
label="Search Bike"
margin="normal"
value={this.state.filterAll}
onChange={this.filterAll}
/>
</form>
</div>
<Map className="map" center={position} zoom={this.state.zoom}>
<TileLayer
attribution="&copy <a href="http://osm.org/copyright">OpenStreetMap</a> contributors"
url="https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png"
/>
{bikeData &&
bikeData.map(data => {
console.log(data)
return (
<Marker
icon={myIcon}
key={data.id}
position={[data.location.latitude, data.location.longitude]}
>
<Popup>
Name: {data.name} <br />
Station Details:{' '}
{[data.location.city, data.location.country]}
</Popup>
</Marker>
)
})}
</Map>
<div>
<ReactTable
filtered={this.state.filtered}
defaultFilterMethod={(filter, row) =>
String(row[filter.id]) === filter.value
}
data={bikeData}
columns={[
{
columns: [
{
Header: ' Name',
accessor: 'name',
filterAll: true,
},
{
Header: '',
id: 'all',
width: 0,
resizable: false,
sortable: false,
Filter: () => {},
getProps: () => {
return {}
},
filterMethod: (filter, rows) => {
const result = matchSorter(rows, filter.value, {
keys: ['name'],
threshold: matchSorter.rankings.WORD_STARTS_WITH,
})
return result
},
filterAll: true,
},
],
},
]}
defaultPageSize={10}
/>
<br />
</div>
</div>
)
}
}
有关运行代码的帮助倍受赞赏。 预先感谢。
答案 0 :(得分：1)
如果我正确理解了您的问题，则需要对代码进行一些调整。首先，添加状态以跟踪“已过滤的自行车数据”（即，用户界面中用户可见的数据）。您可以通过在构造函数中添加如下内容来实现：
constructor(props) {
super(props)
this.state = {
location: {
lat: 51.505,
lng: -0.09,
filterAll: '',
},
bikeData: [],
filteredBikeData : [], // Add this
haveUsersLocation: false,
zoom: 3,
}
}
现在，在您filterAll所有文本字段更改处理程序中，您将要基于当前字段值更新filteredBikeData状态。您可以执行以下操作：
filterAll = e => {
const { value } = e.target
// Get a filtered list of bikes based on original list
const filteredBikes = this.state.bikeData.filter(bike => {
// Filter bikes by name. Use toLowerCase to avoid case sensitivity issues
return bike.name.toLowerCase().indexOf(value.toLowerCase()) !== -1
})
const filterAll = value
const filtered = [{ id: 'all', value: filterAll }]
const filterdMap =[{id:'bikeData', value: filterAll}]
// Update state to include filtered bikes array
this.setState({ filterAll, filtered ,filterdMap, filteredBikes})
}
最后，您需要基于过滤后的自行车阵列来渲染标记-像这样更新渲染方法：
{ /* use filteredBikes instead of bikes */
{ this.state.filteredBikes && this.state.filteredBikes.map(data => {
console.log(data)
return (
<Marker
icon={myIcon}
key={data.id}
position={[data.location.latitude, data.location.longitude]}
>
<Popup>
Name: {data.name} <br />
Station Details:{' '}
{[data.location.city, data.location.country]}
</Popup>
</Marker>
)
})}
另外，您可能还希望将filteredBikes的值默认为从服务器获得的响应，以便用户最初在屏幕上看到一些内容：
componentDidMount() {
fetch('https://api.citybik.es/v2/networks')
.catch(error => {
console.log(error)
})
.then(res => res.json())
.then(response => {
const networkData = response.networks
this.setState({
bikeData: networkData,
filteredBikeData : networkData // Add this
})
})
}