如何通过ID访问react-native-map标记

npm install react-native-maps --save

import MapView, { Marker } from 'react-native-maps';

render() {
  return (
    <MapView
      style={{ flex: 1 }}
      initialRegion={{
        latitude: 37.78825,
        longitude: -122.4324,
        latitudeDelta: 0.0922,
        longitudeDelta: 0.0421,
      }}
    >
      <Marker
        coordinate={{ latitude: 37.78825, longitude: -122.4324 }}
        title="Marker 1"
        description="This is marker 1"
        identifier="marker1"
      />
      <Marker
        coordinate={{ latitude: 37.78925, longitude: -122.4324 }}
        title="Marker 2"
        description="This is marker 2"
        identifier="marker2"
      />
    </MapView>
  );
}

constructor(props) {
  super(props);
  this.mapRef = React.createRef();
}

const marker1 = this.mapRef.current.getMarkerByID("marker1");