Medium Cluster

RenderMapView.js

import Expo from 'expo';
 

render() {
    return (
      <View
        style={{
          flex: 1
        }}
      >
        <Expo.MapView
          ref={ref => { this.map = ref; }}
          style={{
            flex: 1,
          }}
          initialRegion={Marseille}
          onRegionChange={this.onChangeRegion.bind(this)}
          onRegionChangeComplete={this.onChangeRegionComplete.bind(this)}
         >
          {
            this.createMarkersForRegion_Places()
          }
         </Expo.MapView>
      </View>
    );
  }