180907(금) - Google Maps (Adding a Styled Map)

Google Maps

Adding a Styled Map

- night mode 같은 custom style 만들어서 적용가능

- standard map styles, features like road, park, businesses, POIs...

- styling 은 normal map type에서만 적용되며, indoor map은 영향 없다.

Add a resource containing JSON style object

- declarations in JSON format

- use a raw resource or string

- RAW

[
  {
    "featureType": "all",
    "elementType": "geometry",
    "stylers": [
      {
        "color": "#242f3e"
      }
    ]
  },
  {
    "featureType": "all",
    "elementType": "labels.text.stroke",
    "stylers": [
      {
        "lightness": -80
      }
    ]
  },
  {
    "featureType": "administrative",
    "elementType": "labels.text.fill",
    "stylers": [
      {
        "color": "#746855"
      }
    ]
  },
  {
    "featureType": "administrative.locality",
    "elementType": "labels.text.fill",
    "stylers": [
      {
        "color": "#d59563"
      }
    ]
  },
  {
    "featureType": "poi",
    "elementType": "labels.text.fill",
    "stylers": [
      {
        "color": "#d59563"
      }
    ]
  }...

    /**
     * Manipulates the map when it's available.
     * The API invokes this callback when the map is ready for use.
     */
    @Override
    public void onMapReady(GoogleMap googleMap) {

        try {
            // Customise the styling of the base map using a JSON object defined
            // in a raw resource file.
            boolean success = googleMap.setMapStyle(
                    MapStyleOptions.loadRawResourceStyle(
                            this, R.raw.style_json));

            if (!success) {
                Log.e(TAG, "Style parsing failed.");
            }
        } catch (Resources.NotFoundException e) {
            Log.e(TAG, "Can't find style. Error: ", e);
        }
        // Position the map's camera near Sydney, Australia.
        googleMap.moveCamera(CameraUpdateFactory.newLatLng(new LatLng(-34, 151)));
    }
}

- STRING

<resources>
  <string name="style_json">
  [
    {
      \"featureType\": \"all\",
      \"elementType\": \"geometry\",
      \"stylers\": [
        {
          \"color\": \"#242f3e\"
        }
      ]
    },
    {
      \"featureType\": \"all\",
      \"elementType\": \"labels.text.stroke\",
      \"stylers\": [
        {
          \"lightness\": -80
        }
      ]
    },
    {
      \"featureType\": \"administrative\",
      \"elementType\": \"labels.text.fill\",
      \"stylers\": [
        {
          \"color\": \"#746855\"
        }
      ]
    },
    {
      \"featureType\": \"administrative.locality\",
      \"elementType\": \"labels.text.fill\",
      \"stylers\": [
        {
          \"color\": \"#d59563\"
        }
      ]
    }...

/**
     * Manipulates the map when it's available.
     * The API invokes this callback when the map is ready for use.
     */
    @Override
    public void onMapReady(GoogleMap googleMap) {

        // Customise the styling of the base map using a JSON object defined
        // in a string resource file. First create a MapStyleOptions object
        // from the JSON styles string, then pass this to the setMapStyle
        // method of the GoogleMap object.
        boolean success = googleMap.setMapStyle(new MapStyleOptions(getResources()
                .getString(R.string.style_json)));

        if (!success) {
            Log.e(TAG, "Style parsing failed.");
        }
        // Position the map's camera near Sydney, Australia.
        googleMap.moveCamera(CameraUpdateFactory.newLatLng(new LatLng(-34, 151)));
    }

More about JSON style declarations

Selectors

- geographic components

- featureType and elementType properties

Stylers

- color

Maps Platform Styling Wizard

- Maps Platform Styling Wizard