As well as changing the style of features on the map, you can also hide them entirely. This example shows you how to hide business points of interest (POIs) and public transit icons on your map.
Styling works only on the normal map type. Styling does not affect
indoor maps, so using styling to hide features does not prevent
indoor floor plans from appearing on the map.
Pass a JSON style object to your map
To style your map, call GoogleMap.setMapStyle() passing a
MapStyleOptions object that contains your style
declarations in JSON format. You can load the JSON from a raw resource or a
string, as shown in the following examples:
Raw resource
The following code sample assumes your project contains a raw resource named
style_json:
/**
* A styled map using JSON styles from a raw resource.
*/
public class MapsActivityRaw extends AppCompatActivity
implements OnMapReadyCallback {
private static final String TAG = MapsActivityRaw.class.getSimpleName();
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// Retrieve the content view that renders the map.
setContentView(R.layout.activity_maps_raw);
// Get the SupportMapFragment and register for the callback
// when the map is ready for use.
SupportMapFragment mapFragment =
(SupportMapFragment) getSupportFragmentManager()
.findFragmentById(R.id.map);
mapFragment.getMapAsync(this);
}
/**
* 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)));
}
}
Define a raw resource in /res/raw/style_json.json, containing
the following JSON style declaration to hide business points of interest
(POIs):
The following style declaration hides business points of interest (POIs) and public transit icons:
The layout (activity_maps.xml) looks like this:
String resource
The following code sample assumes your project contains a string resource
named style_json:
package com.example.styledmap;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import com.google.android.gms.maps.CameraUpdateFactory;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.OnMapReadyCallback;
import com.google.android.gms.maps.SupportMapFragment;
import com.google.android.gms.maps.model.LatLng;
import com.google.android.gms.maps.model.MapStyleOptions;
/**
* A styled map using JSON styles from a string resource.
*/
public class MapsActivityString extends AppCompatActivity
implements OnMapReadyCallback {
private static final String TAG = MapsActivityString.class.getSimpleName();
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// Retrieve the content view that renders the map.
setContentView(R.layout.activity_maps_string);
// Get the SupportMapFragment and register for the callback
// when the map is ready for use.
SupportMapFragment mapFragment =
(SupportMapFragment) getSupportFragmentManager()
.findFragmentById(R.id.map);
mapFragment.getMapAsync(this);
}
/**
* 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)));
}
}
Define a string resource in /res/values/style_strings.xml,
containing the following JSON style declaration to hide business points of
interest (POIs). In this file you need to use a backslash to escape the
quotation marks:
The following style declaration hides business points of interest (POIs) and public transit icons:
The layout (activity_maps.xml) looks like this:
JSON style declarations
Styled maps use two concepts to apply colors and other style changes to a map:
- Selectors specify the geographic components that you can
style on the map. These include roads, parks, bodies of water, and
more, as well as their labels. The selectors include features
and elements, specified as
featureTypeandelementTypeproperties. - Stylers are color and visibility properties that you can apply to map elements. They define the displayed color through a combination of hue, color, and lightness/gamma values.
See the style reference for a detailed description of the JSON styling options.
Maps Platform Styling Wizard
Use the Maps Platform Styling Wizard as a quick way to generate a JSON styling object. The Maps SDK for Android supports the same style declarations as the Maps JavaScript API.
Full code samples
The ApiDemos repository on GitHub includes samples that demonstrate the use of styling.
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