react-native-maps

React Native Map components for iOS + Android

Contributing

This project is being maintained by a small group of people, and any help with issues and pull requests are always appreciated. If you are able and willing to contribute, please read the guidelines.

Installation

See Installation Instructions.

See Setup Instructions for the Included Example Project.

Compatibility

React Native Compatibility

Version Requirements:

Compatibility

Fabric (New Architecture)

Version	React Native Requirement
1.26.1+	>= 0.81.1
1.26.0 and below	>= 0.76

Old Architecture

Version	React Native Requirement
1.14.0 - 1.20.1	>= 0.74
< 1.14.0	>= 0.64.3

Component API

<MapView /> Component API

<Marker /> Component API

<Callout /> Component API

<Polygon /> Component API

<Polyline /> Component API

<Circle /> Component API

<Overlay /> Component API

<Heatmap /> Component API

<Geojson /> Component API

General Usage

import MapView from 'react-native-maps';

or

var MapView = require('react-native-maps');

This MapView component is built so that features on the map (such as Markers, Polygons, etc.) are specified as children of the MapView itself. This provides an intuitive and react-like API for declaratively controlling features on the map.

Rendering a Map with an initial region

MapView

<MapView
  initialRegion={{
    latitude: 37.78825,
    longitude: -122.4324,
    latitudeDelta: 0.0922,
    longitudeDelta: 0.0421,
  }}
/>

Using a MapView while controlling the region as state

getInitialState() {
  return {
    region: {
      latitude: 37.78825,
      longitude: -122.4324,
      latitudeDelta: 0.0922,
      longitudeDelta: 0.0421,
    },
  };
}

onRegionChange(region) {
  this.setState({ region });
}

render() {
  return (
    <MapView
      region={this.state.region}
      onRegionChange={this.onRegionChange}
    />
  );
}

Rendering a list of markers on a map

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

<MapView region={this.state.region} onRegionChange={this.onRegionChange}>
  {this.state.markers.map((marker, index) => (
    <Marker
      key={index}
      coordinate={marker.latlng}
      title={marker.title}
      description={marker.description}
    />
  ))}
</MapView>;

Rendering a Marker with a custom image

1. You need to generate an png image with various resolution (lets call them custom_pin) - for more information go to Android, iOS
2. put all images in Android drawables and iOS assets dir
3. Now you can use the following code:

<Marker
  coordinate={{latitude: latitude, longitude: longitude}}
  image={{uri: 'custom_pin'}}
/>

Note: You can also pass the image binary data like image={require('custom_pin.png')}, but this will not scale good with the different screen sizes.

Rendering a Marker with a custom view

Note: This has performance implications, if you wish for a simpler solution go with a custom image (save your self the headache)

<Marker coordinate={{latitude: latitude, longitude: longitude}}>
  <MyCustomMarkerView {...marker} />
</Marker>

Rendering a custom Marker with a custom Callout

import {Callout} from 'react-native-maps';

<Marker coordinate={marker.latlng}>
  <MyCustomMarkerView {...marker} />
  <Callout>
    <MyCustomCalloutView {...marker} />
  </Callout>
</Marker>;

Draggable Markers

<MapView initialRegion={...}>
  <Marker draggable
    coordinate={this.state.x}
    onDragEnd={(e) => this.setState({ x: e.nativeEvent.coordinate })}
  />
</MapView>

Using a custom Tile Overlay

Tile Overlay using tile server

import {UrlTile} from 'react-native-maps';

<MapView region={this.state.region} onRegionChange={this.onRegionChange}>
  <UrlTile
    /**
     * The url template of the tile server. The patterns {x} {y} {z} will be replaced at runtime
     * For example, http://c.tile.openstreetmap.org/{z}/{x}/{y}.png
     */
    urlTemplate={this.state.urlTemplate}
    /**
     * The maximum zoom level for this tile overlay. Corresponds to the maximumZ setting in
     * MKTileOverlay. iOS only.
     */
    maximumZ={19}
    /**
     * flipY allows tiles with inverted y coordinates (origin at bottom left of map)
     * to be used. Its default value is false.
     */
    flipY={false}
  />
</MapView>;

For Android: add the following line in your AndroidManifest.xml

<uses-permission android:name="android.permission.INTERNET" />

For IOS: configure App Transport Security in your app

Tile Overlay using local tiles

Tiles can be stored locally within device using xyz tiling scheme and displayed as tile overlay as well. This is usefull especially for offline map usage when tiles are available for selected map region within device storage.

import {LocalTile} from 'react-native-maps';

<MapView region={this.state.region} onRegionChange={this.onRegionChange}>
  <LocalTile
    /**
     * The path template of the locally stored tiles. The patterns {x} {y} {z} will be replaced at runtime
     * For example, /storage/emulated/0/mytiles/{z}/{x}/{y}.png
     */
    pathTemplate={this.state.pathTemplate}
    /**
     * The size of provided local tiles (usually 256 or 512).
     */
    tileSize={256}
  />
</MapView>;

For Android: LocalTile is still just overlay over original map tiles. It means that if device is online, underlying tiles will be still downloaded. If original tiles download/display is not desirable set mapType to 'none'. For example:

<MapView
  mapType={Platform.OS == "android" ? "none" : "standard"}
>

See OSM Wiki for how to download tiles for offline usage.

Overlaying other components on the map

Place components that you wish to overlay MapView underneath the MapView closing tag. Absolutely position these elements.

render() {
  return (
    <MapView
      region={this.state.region}
    />
    <OverlayComponent
      style={{position: "absolute", bottom: 50}}
    />
  );
}

Customizing the map style (Google Maps Only)

The <MapView provider="google" googleMapId="yourStyledMapId" /> Google Maps on iOS and Android supports styling via google cloud platform, the styled maps are published under a googleMapId, by simply setting the property googleMapId to the MapView you can use that styled map more info here: google map id

MapView Events

The <MapView /> component and its child components have several events that you can subscribe to. This example displays some of them in a log as a demonstration.

Tracking Region / Location

Programmatically Changing Region

One can change the mapview's position using refs and component methods, or by passing in an updated region prop. The component methods will allow one to animate to a given position like the native API could.

Changing the style of the map

Arbitrary React Views as Markers

Using the MapView with the Animated API

The <MapView /> component can be made to work with the Animated API, having the entire region prop be declared as an animated value. This allows one to animate the zoom and position of the MapView along with other gestures, giving a nice feel.

Further, Marker views can use the animated API to enhance the effect.

Issue: Since android needs to render its marker views as a bitmap, the animations APIs may not be compatible with the Marker views. Not sure if this can be worked around yet or not.

Markers' coordinates can also be animated, as shown in this example:

Polygon Creator

Other Overlays

So far, <Circle />, <Polygon />, and <Polyline /> are available to pass in as children to the <MapView /> component.

Gradient Polylines (iOS MapKit only)

Gradient polylines can be created using the strokeColors prop of the <Polyline> component.

Default Markers

Default markers will be rendered unless a custom marker is specified. One can optionally adjust the color of the default marker by using the pinColor prop.

Custom Callouts

Callouts to markers can be completely arbitrary react views, similar to markers. As a result, they can be interacted with like any other view.

Additionally, you can fall back to the standard behavior of just having a title/description through the <Marker />'s title and description props.

Custom callout views can be the entire tooltip bubble, or just the content inside of the system default bubble.

To handle press on specific subview of callout use <CalloutSubview /> with onPress. See Callouts.js example.

Image-based Markers

Markers can be customized by just using images, and specified using the image prop.

Draggable Markers

Markers are draggable, and emit continuous drag events to update other UI during drags.

Lite Mode ( Android )

Enable lite mode on Android with liteMode prop. Ideal when having multiple maps in a View or ScrollView.

On Poi Click (Google Maps Only)

Poi are clickable, you can catch the event to get its information (usually to get the full detail from Google Place using the placeId).

Animated Region

The MapView can accept an AnimatedRegion value as its region prop. This allows you to utilize the Animated API to control the map's center and zoom.

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

getInitialState() {
  return {
    region: new AnimatedRegion({
      latitude: LATITUDE,
      longitude: LONGITUDE,
      latitudeDelta: LATITUDE_DELTA,
      longitudeDelta: LONGITUDE_DELTA,
    }),
  };
}

onRegionChange(region) {
  this.state.region.setValue(region);
}

render() {
  return (
    <Animated
      region={this.state.region}
      onRegionChange={this.onRegionChange}
    />
  );
}

Animated Marker Position

Markers can also accept an AnimatedRegion value as a coordinate.

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

getInitialState() {
  return {
    coordinate: new AnimatedRegion({
      latitude: LATITUDE,
      longitude: LONGITUDE,
    }),
  };
}

componentWillReceiveProps(nextProps) {
  const duration = 500

  if (this.props.coordinate !== nextProps.coordinate) {
    if (Platform.OS === 'android') {
      if (this.marker) {
        this.marker.animateMarkerToCoordinate(
          nextProps.coordinate,
          duration
        );
      }
    } else {
      this.state.coordinate.timing({
        ...nextProps.coordinate,
        useNativeDriver: true, // defaults to false if not passed explicitly
        duration
      }).start();
    }
  }
}

render() {
  return (
    <MapView initialRegion={...}>
      <MarkerAnimated
        ref={marker => { this.marker = marker }}
        coordinate={this.state.coordinate}
      />
    </MapView>
  );
}

Take Snapshot of map

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

getInitialState() { return { coordinate: { latitude: LATITUDE, longitude: LONGITUDE, }, }; }

takeSnapshot () { // 'takeSnapshot' takes a config object with the // following options const snapshot = this.map.takeSnapshot({ width: 300, // optional, when omitted the view-width is used height: 300, // optional, when omitted the view-height is used region: {..}, // iOS only, optional region to render format: 'png', // image formats: 'png', 'jpg' (default: 'png') quality: 0.8, // image quality: 0..1 (only relevant for jpg, default: 1) result: 'file' // result types: 'file', 'base64' (default: 'file') }); snapshot.then((uri) => { this.setState({ mapSnapshot: uri