Dynamically adding markers on react-google map
I didn't need to show the selected location on some mobile devices on the Map. There is information about places.
Here I need to add markers on the map depending on the data received from the server.
Suppose I set location data ({Lat, Lang}) to state markers Then how can I add this to display on the map.
My map code looks like this:
import React, { Component } from 'react';
import GoogleMapReact from 'google-map-react';
const AnyReactComponent = ({ text }) => <div>{text}</div>;
class MyClass extends Component {
constructor(props){
super(props);
}
render() {
return (
<GoogleMapReact
defaultCenter={this.props.center}
defaultZoom={this.props.zoom}
style={{height: '300px'}}
>
<AnyReactComponent
lat={59.955413}
lng={30.337844}
text={'Google Map'}
/>
</GoogleMapReact>
);
}
}
MyClass.defaultProps = {
center: {lat: 59.95, lng: 30.33},
zoom: 11
};
export default MyClass;
This code is from the answer Embedding google maps with answers
Used npm package: - google-map-react
source to share
You may try:
import React, { Component } from 'react';
import GoogleMapReact from 'google-map-react';
const AnyReactComponent = ({ img_src }) => <div><img src={img_src} className="YOUR-CLASS-NAME" style={{}} /></div>;
class MyClass extends Component {
constructor(props){
super(props);
this.state = {
markers: [],
}
}
componentDidMount(){
// or you can set markers list somewhere else
// please also set your correct lat & lng
// you may only use 1 image for all markers, if then, remove the img_src attribute ^^
this.setState({
markers: [{lat: xxxx, lng: xxxx, img_src: 'YOUR-IMG-SRC'},{lat: xxxx, lng: xxxx, img_src: 'YOUR-IMG-SRC' },{lat: xxxx, lng: xxxx, img_src: 'YOUR-IMG-SRC'}],
});
}
render() {
return (
<GoogleMapReact
defaultCenter={this.props.center}
defaultZoom={this.props.zoom}
style={{height: '300px'}}
>
{this.state.markers.map((marker, i) =>{
return(
<AnyReactComponent
lat={marker.lat}
lng={marker.lng}
img_src={marker.img_src}
/>
)
})}
</GoogleMapReact>
);
}
}
MyClass.defaultProps = {
center: {lat: 59.95, lng: 30.33},
zoom: 11
};
If this has a bug, please show here, then we can fix it later
===========
SUPPLEMENTED EXAMPLE FOR SLIP MEASURES ON MARKERS
markerClicked(marker) {
console.log("The marker that was clicked is", marker);
// you may do many things with the "marker" object, please see more on tutorial of the library author:
// https://github.com/istarkov/google-map-react/blob/master/API.md#onchildclick-func
// Look at their examples and you may have some ideas, you can also have the hover effect on markers, but it a bit more complicated I think
}
render() {
return (
<GoogleMapReact
defaultCenter={this.props.center}
defaultZoom={this.props.zoom}
style={{height: '300px'}}
>
{this.state.markers.map((marker, i) =>{
return(
<AnyReactComponent
lat={marker.lat}
lng={marker.lng}
img_src={marker.img_src}
onChildClick={this.markerClicked.bind(this, marker)}
/>
)
})}
</GoogleMapReact>
);
}
Please post some bugs here again if there are any ^^!
source to share
Be careful. You said react-google-map
, but you are using google-map-react
. These are 2 different packages. Don't mix your documentation.
I am using google-map-react
in a personal project. You can check the code here: https://github.com/BrodaNoel/devseverywhere/blob/master/src/pages/AnalyticsPage/AnalyticsPage.jsx#L227
source to share