An easy way to open a location in a map app of the user's choice, based on the apps they have installed on their device. The app supports Apple Maps, Google Maps, Citymapper, Uber, and a dozen other apps.

Installation

1. Install the package

npm i -S react-native-map-link      # or yarn add react-native-map-link

2. Post-install steps

Based on the platforms your app supports, you also need to:

Simple example

import {showLocation} from 'react-native-map-link';

showLocation({
  latitude: 38.8976763,
  longitude: -77.0387185,
  title: 'Your destination',
});

Full usage

Using the showLocation function will shown an action sheet on iOS and an alert on Android, without any custom styling:

import {showLocation} from 'react-native-map-link';

showLocation({
  latitude: 38.8976763,
  longitude: -77.0387185,
  sourceLatitude: -8.0870631, // optionally specify starting location for directions
  sourceLongitude: -34.8941619, // required if sourceLatitude is specified
  title: 'The White House', // optional 
  googleForceLatLon: false, // optionally force GoogleMaps to use the latlon for the query instead of the title
  googlePlaceId: 'ChIJGVtI4by3t4kRr51d_Qm_x58', // optionally specify the google-place-id
  alwaysIncludeGoogle: true, // optional, true will always add Google Maps to iOS and open in Safari, even if app is not installed (default: false)
  dialogTitle: 'This is the dialog Title', // optional (default: 'Open in Maps')
  dialogMessage: 'This is the amazing dialog Message', // optional (default: 'What app would you like to use?')
  cancelText: 'This is the cancel button text', // optional (default: 'Cancel')
  appsWhiteList: ['google-maps'], // optionally you can set which apps to show (default: will show all supported apps installed on device)
  naverCallerName: 'com.example.myapp', // to link into Naver Map You should provide your appname which is the bundle ID in iOS and applicationId in android.
  appTitles: {'google-maps': 'My custom Google Maps title'}, // optionally you can override default app titles
  app: 'uber', // optionally specify specific app to use
  directionsMode: 'walk', // optional, accepted values are 'car', 'walk', 'public-transport' or 'bike'
});

Alternatively you can specify the address field and leave the latitude and longitude properties as empty strings

import {showLocation} from 'react-native-map-link';

showLocation({
  address: '1600 Pennsylvania Avenue NW, Washington, DC 20500', // Required if replacing latitude and longitude
  app: 'comgooglemaps',  // optionally specify specific app to use
});

Notes:

• The sourceLatitude / sourceLongitude options only work if you specify both. Currently supports all apps except Waze.
• directionsMode works on google-maps, apple-maps and sygic (on apple-maps, bike mode will not work, while on sygic, only walk and car will work). Without setting it, the app will decide based on its own settings.
• If you set directionsMode but do not set sourceLatitude and sourceLongitude, google-maps and apple-maps will still enter directions mode, and use the current location as starting point.
• If you want to query an address instead of passing the latitude and longitude fields, you can do this by leaving those fields off and provide a full address to be queried with the address field. Just be aware that not all applications support this.

Or

Using the getApps function will return an array (GetAppResult[]) with the apps available on the smartphone:

type GetAppResult = {
  id: string;
  name: string;
  icon: NodeRequire;
  open: () => Promise<void>;
};

import {getApps, GetAppResult} from 'react-native-map-link';

const Demo = () => {
  const [availableApps, setAvailableApps] = useState<GetAppResult[]>([]);

  useEffect(() => {
    (async () => {
      const result = await getApps({
        latitude: 38.8976763,
        longitude: -77.0387185,
        address: '1600 Pennsylvania Avenue NW, Washington, DC 20500', // optional 
        title: 'The White House', // optional
        googleForceLatLon: false, // optionally force GoogleMaps to use the latlon for the query instead of the title
        alwaysIncludeGoogle: true, // optional, true will always add Google Maps to iOS and open in Safari, even if app is not installed (default: false)
        appsWhiteList: ['google-maps'], // optionally you can set which apps to show (default: will show all supported apps installed on device)
      });
      setAvailableApps(result);
    })();
  }, []);

  return (
    <React.Fragment>
      {availableApps.map(({icon, name, id, open}) => (
        <Pressable key={id} onPress={open}>
          <Image source={icon} />
          <Text>{name}</Text>
        </Pressable>
      ))}
    </React.Fragment>
  );
};

More information

• Using this library with Expo
• Alternative usage: styled popup
• Adding support for new maps apps