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App.js
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App.js
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/**
* Sample React Native App
* https://github.com/facebook/react-native
* @flow
*/
import React, { Component } from 'react';
import {
Text,
StyleSheet
} from 'react-native';
import MapView from 'react-native-maps';
//import ClusteredMapView from 'react-native-maps-super-cluster';
import image from './images/flag-pink.png';
export default class App extends Component<{}> {
render() {
const coordinates = [];
coordinates.push({
key: 0,
location: {
longitude: -70.23,
latitude: -33.23
}
});
for(let i = 1; i<100; i++) {
const location = {
longitude: coordinates[i-1].location.longitude + (Math.random() * (i%2 === 0 ? -1 : 1)),
latitude: coordinates[i-1].location.latitude + (Math.random() * (i%2 === 0 ? -1 : 1)),
};
coordinates.push({ key: i, location });
}
return (
<MapView
renderMarker={renderMarker}
initialRegion={{
longitude: -70.23,
latitude: -33.23,
latitudeDelta: 9.22,
longitudeDelta: 4.21,
}}
style={StyleSheet.absoluteFillObject}>
{ coordinates.map(({ key, location } ) => <MapView.Marker key={key} image={image} coordinate={location} />) }
</MapView>
);
}
}
function renderMarker({ location }) {
return (
<MapView.Marker
image={image}
coordinate={location}
>
<MapView.Callout>
<Text>BiG BiG Callout</Text>
</MapView.Callout>
</MapView.Marker>
);
}