android为谷歌地图添加标记

implementation 'com.google.android.gms:play-services-maps:17.0.0'

<meta-data
    android:name="com.google.android.geo.API_KEY"
    android:value="YOUR_API_KEY" />

<com.google.android.gms.maps.MapView
    android:id="@+id/mapView"
    android:layout_width="match_parent"
    android:layout_height="match_parent" />

private MapView mapView;
private GoogleMap googleMap;

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

    mapView = findViewById(R.id.mapView);
    mapView.onCreate(savedInstanceState);
    mapView.getMapAsync(new OnMapReadyCallback() {
        @Override
        public void onMapReady(GoogleMap map) {
            googleMap = map;
            // 在地图上添加标记
            addMarker();
        }
    });
}

@Override
protected void onResume() {
    super.onResume();
    mapView.onResume();
}

@Override
protected void onPause() {
    super.onPause();
    mapView.onPause();
}

@Override
protected void onDestroy() {
    super.onDestroy();
    mapView.onDestroy();
}

private void addMarker() {
    LatLng location = new LatLng(latitude, longitude);
    MarkerOptions markerOptions = new MarkerOptions()
            .position(location)
            .title("Marker Title")
            .snippet("Marker Snippet");
    googleMap.addMarker(markerOptions);
}