Android从坐标数组开始以编程方式在地图视图上绘制多边形

// 导入Google Maps API库
implementation 'com.google.android.gms:play-services-maps:17.0.0'

// 在布局文件中添加地图视图
<com.google.android.gms.maps.MapView
    android:id="@+id/mapView"
    android:layout_width="match_parent"
    android:layout_height="match_parent" />

// 在Activity或Fragment中获取地图对象
private GoogleMap googleMap;
private MapView mapView;

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

    mapView = findViewById(R.id.mapView);
    mapView.onCreate(savedInstanceState);
    mapView.getMapAsync(this);
}

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

    // 定义多边形的坐标数组
    LatLng[] coordinates = new LatLng[]{
            new LatLng(37.35, -122.0),
            new LatLng(37.45, -122.0),
            new LatLng(37.45, -122.2),
            new LatLng(37.35, -122.2)
    };

    // 创建多边形的选项
    PolygonOptions polygonOptions = new PolygonOptions()
            .addAll(Arrays.asList(coordinates))
            .strokeColor(Color.RED)
            .fillColor(Color.BLUE);

    // 在地图上添加多边形
    googleMap.addPolygon(polygonOptions);
}

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

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

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

@Override
public void onLowMemory() {
    super.onLowMemory();
    mapView.onLowMemory();
}