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Tutorials > Android App Development > Integrating Google Maps into your Android app

Integrating Google Maps into your Android app

Integrating Google Maps into an Android app can greatly enhance its functionality and provide users with useful features such as location-based services, geocoding, and mapping. Here is an example of how to integrate Google Maps into your Android app:

  • Get an API key First, you need to get an API key from the Google Cloud Console by following these steps:
  • Go to the Google Cloud Console and create a new project or select an existing one.
  • Enable the Google Maps SDK for Android and generate an API key.
  • Add the API key to your app's manifest file.
  • Add the Google Play services library In your app's build.gradle file, add the following dependency:
python
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dependencies {
    implementation 'com.google.android.gms:play-services-maps:17.0.1'
}
  • Add the map fragment to your layout In your layout XML file, add a fragment tag with the name attribute set to com.google.android.gms.maps.SupportMapFragment. Here is an example:
xml
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<fragment
    android:id="@+id/map"
    android:name="com.google.android.gms.maps.SupportMapFragment"
    android:layout_width="match_parent"
    android:layout_height="match_parent" />
  • Initialize the map in your activity In your activity, you need to initialize the map and set it to the map fragment. Here is an example:
java
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public class MapsActivity extends AppCompatActivity implements OnMapReadyCallback {

    private GoogleMap mMap;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_maps);

        SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager()
                .findFragmentById(R.id.map);
        mapFragment.getMapAsync(this);
    }

    @Override
    public void onMapReady(GoogleMap googleMap) {
        mMap = googleMap;

        // Add a marker in Sydney, Australia and move the camera
        LatLng sydney = new LatLng(-34, 151);
        mMap.addMarker(new MarkerOptions().position(sydney).title("Marker in Sydney"));
        mMap.moveCamera(CameraUpdateFactory.newLatLng(sydney));
    }
}

In this example, we implement the OnMapReadyCallback interface and override the onMapReady() method, which is called when the map is ready to be used. We use the getSupportFragmentManager() method to get the map fragment and call the getMapAsync() method to initialize the map. In the onMapReady() method, we add a marker at a specific location and move the camera to that location.

Overall, integrating Google Maps into your Android app can greatly enhance its functionality and provide users with useful features. By following these steps and customizing the map to fit your app's needs, you can provide a better user experience and make your app more valuable to users.



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