我试图在单击特定标记时打开信息窗口,但似乎点击任何一个标记都会打开所有标记的信息窗口,并显示以下错误:
React.Children.only expected to receive a single React element child.
以下是我目前的代码:import React, { Component } from 'react';
import { GoogleMap, Marker, withGoogleMap, withScriptjs, InfoWindow } from 'react-google-maps'
class Map extends Component {
state = {
isOpen: false
}
handleMarkerClick = () => {
this.setState({ isOpen: true})
}
render() {
return(
<div>
<GoogleMap
defaultZoom={13}
defaultCenter={{ lat: -22.9034778, lng: -43.1264636 }}
>{this.props.markers.map((marker, index) =>(
<Marker
key={index}
position={marker.location}
onClick={this.handleMarkerClick}
>{this.state.isOpen && <InfoWindow onCloseClick={this.handleMarkerClick}/>}
</Marker>
))}
</GoogleMap>
</div>
)
}
}
export default withScriptjs(withGoogleMap(Map))
编辑开始
我做了一些更改来解决评论问题,但目前还没有生效。你能给我一些提示吗?由于我对顶部组件进行了一些更改,因此我将在此处粘贴它:
import React, { Component } from 'react';
import Map from './Map.js'
import List from './List.js'
import escapeRegExp from 'escape-string-regexp'
import sortBy from 'sort-by'
class App extends Component {
state ={
locations:[
{
name: "Paróquia Nossa Senhora das Dores do Ingá",
location: {
lat: -22.9038875,
lng: -43.1252873
},
isOpen:false,
},
{
name: "Museu de Arte Contemporanea de Niteroi",
location: {
lat: -22.9078182,
lng: -43.1262919
},
isOpen:false,
},
{
name: "UFF - Faculdade de Direito",
location: {
lat: -22.9038469,
lng: -43.126024
},
isOpen:false,
},
{
name: "Ponte Rio-Niterói",
location: {
lat: -22.8701,
lng: -43.167
},
isOpen:false,
},
{
name: "Fundação Oscar Niemeyer",
location: {
lat: -22.888533927137285,
lng: -43.12815992250511
},
isOpen:false,
},
{
name: "Campo de São Bento",
location: {
lat: -22.905279,
lng: -43.107759
},
isOpen:false,
}
],
query:''
}
onToggleOpen = (location) => {
this.setState({ isOpen: !this.isOpen })
}
updateQuery = (query) => {
this.setState({ query: query.trim() })
console.log(query)
}
componentDidMount() {}
render() {
const { query, locations } = this.state
let filteredMarkers
if(query) {
const match = new RegExp(escapeRegExp(query), 'i')
filteredMarkers = locations.filter((location) => match.test(location.name))
}else {
filteredMarkers = locations
}
filteredMarkers.sort(sortBy('name'))
return (
<div className="App">
<div style={{height:`5vh`}}>
<input
type='text'
placeholder='Search locations'
value={query}
onChange={(event) => this.updateQuery(event.target.value)}
/>
</div>
<List
markers={filteredMarkers}
/>
<Map
onToggle={this.onToggleOpen}
googleMapURL="https://maps.googleapis.com/maps/api/js?&key=AIzaSyAiqO5W1p5FAFf8RZD11PGigUXSlmVHguQ&v=3"
loadingElement={<div style={{ height: `100%` }} />}
containerElement={<div style={{ height: `80vh` }} />}
mapElement={<div style={{ height: `100%` }} />}
className="Map"
markers={filteredMarkers}
/>
</div>
);
}
}
export default App;
Map.js
import React, { Component } from 'react';
import { GoogleMap, Marker, withGoogleMap, withScriptjs, InfoWindow } from 'react-google-maps'
class Map extends Component {
render() {
return(
<div>
<GoogleMap
defaultZoom={13}
defaultCenter={{ lat: -22.9034778, lng: -43.1264636 }}
>{this.props.markers.map((marker, index) =>(
<Marker
key={index}
position={marker.location}
onClick={() => this.props.onToggle(marker)}
>{marker.isOpen && <InfoWindow onCloseClick={this.ontoggleOpen}>Hello</InfoWindow>}
</Marker>
))}
</GoogleMap>
</div>
)
}
}
export default withScriptjs(withGoogleMap(Map))
props.markers
的例子吗?这会帮助我制作一个可行的示例。 - Anton Kastritskiy