如何使用react-google-maps从两个不同的搜索框中获得formatted_address?

Question

我想在 React 中从同一个 GoogleMap 中的两个不同的搜索框中获取formatted_data。 我正在使用反应谷歌地图库。我不知道该怎么做，也没有在整个互联网上找到任何关于它的信息。

我没有忘记更改我的 api 密钥。

我已将此代码从文档复制到我的项目中。但这是代码：

const _ = require("lodash");
const { compose, withProps, lifecycle } = require("recompose");
const {
withScriptjs,
withGoogleMap,
GoogleMap,
Marker,
} = require("react-google-maps");
const { SearchBox } = require("react-google-maps/lib/components/places/SearchBox");
const MapWithASearchBox = compose(
withProps({
googleMapURL: "https://maps.googleapis.com/maps/api/js?key={YOUR_API_KEY}&v=3.exp&libraries=geometry,drawing,places",
loadingElement: <div style={{ height: `100%` }} />,
containerElement: <div style={{ height: `400px` }} />,
mapElement: <div style={{ height: `100%` }} />,
}),
lifecycle({
componentWillMount() {
const refs = {}
this.setState({
bounds: null,
center: {
lat: 41.9, lng: -87.624
},
markers: [],
onMapMounted: ref => {
refs.map = ref;
},
onBoundsChanged: () => {
this.setState({
bounds: refs.map.getBounds(),
center: refs.map.getCenter(),
})
},
onSearchBoxMounted: ref => {
refs.searchBox = ref;
},
onPlacesChanged: () => {
const places = refs.searchBox.getPlaces();
//this is the information that I need but I need it from the second SearchBox too
console.log(places[0].formatted_address);
const bounds = new window.google.maps.LatLngBounds();
places.forEach(place => {
if (place.geometry.viewport) {
bounds.union(place.geometry.viewport)
} else {
bounds.extend(place.geometry.location)
}
});
const nextMarkers = places.map(place => ({
position: place.geometry.location,
}));
const nextCenter = _.get(nextMarkers, '0.position', this.state.center);
this.setState({
center: nextCenter,
markers: nextMarkers,
});
// refs.map.fitBounds(bounds);
},
})
},
}),
withScriptjs,
withGoogleMap
)(props =>
<GoogleMap
ref={props.onMapMounted}
defaultZoom={15}
center={props.center}
onBoundsChanged={props.onBoundsChanged}
>
<SearchBox
ref={props.onSearchBoxMounted}
bounds={props.bounds}
controlPosition={window.google.maps.ControlPosition.TOP_LEFT}
onPlacesChanged={props.onPlacesChanged}
>
<input
type="text"
placeholder="Customized your placeholder"
style={{
boxSizing: `border-box`,
border: `1px solid transparent`,
width: `240px`,
height: `32px`,
marginTop: `27px`,
padding: `0 12px`,
borderRadius: `3px`,
boxShadow: `0 2px 6px rgba(0, 0, 0, 0.3)`,
fontSize: `14px`,
outline: `none`,
textOverflow: `ellipses`,
}}
/>
</SearchBox>
<SearchBox
ref={props.onSearchBoxMounted}
bounds={props.bounds}
controlPosition={window.google.maps.ControlPosition.TOP_LEFT}
onPlacesChanged={props.onPlacesChanged}
>
<input
type="text"
placeholder="Customized your placeholder"
style={{
boxSizing: `border-box`,
border: `1px solid transparent`,
width: `240px`,
height: `32px`,
marginTop: `27px`,
padding: `0 12px`,
borderRadius: `3px`,
boxShadow: `0 2px 6px rgba(0, 0, 0, 0.3)`,
fontSize: `14px`,
outline: `none`,
textOverflow: `ellipses`,
}}
/>
</SearchBox>
{props.markers.map((marker, index) =>
<Marker key={index} position={marker.position} />
)}
</GoogleMap>
);
return (
<MapWithASearchBox />
);

Answer 1

您在此处覆盖了搜索框引用：

onSearchBoxMounted: ref => {
refs.searchBox = ref;
},

这就是为什么你只看到第二个搜索框。你可以做的是创建一个数组，如下所示：

onSearchBoxMounted: ref => {
if (!refs.searchBoxes || refs.searchBoxes.length === 0) {
refs.searchBoxes = [];
}
refs.searchBoxes.push(ref);
},

这样您就可以执行以下操作：

onPlacesChanged: () => {
let places = [];
for (let i = 0; i < refs.searchBoxes.length; i++) {
places.push(refs.searchBoxes[i].getPlaces());
}
...
}

现在，如果您登录places您将看到每个搜索框的地点信息。我刚刚对此进行了测试，它可以正常工作，所以我希望这对您有所帮助！