Question

我设法在地图上绘制一个多边形。我使用的代码：

private void drawPolygons() {

    PolygonOptions polygonOptions = new PolygonOptions();
    polygonOptions.addAll(arrayPolygon);
    polygonOptions.strokeColor(Color.CYAN);
    polygonOptions.strokeWidth(4);
    polygonOptions.fillColor(Color.CYAN);
    Polygon polygon = googleMap.addPolygon(polygonOptions);

}

我想画另一个。我试过这样：

private void drawPolygons() {

    PolygonOptions polygonOptions = new PolygonOptions();
    polygonOptions.addAll(arrayPolygon);
    polygonOptions.addAll(arrayPolygonSecond);
    polygonOptions.strokeColor(Color.CYAN);
    polygonOptions.strokeWidth(4);
    polygonOptions.fillColor(Color.CYAN);
    Polygon polygon = googleMap.addPolygon(polygonOptions);

}

这两个LatLng阵列刚搞砸了（两个阵列的顶点都已连接）。我需要将这两个多边形分开。

任何帮助都会受到很多赞赏。谢谢你的推荐。

Answer 1

找到解决方案。我不得不做两个独立的功能。这是代码：

private void drawPolygons() {

    PolygonOptions polygonOptions = new PolygonOptions();
    polygonOptions.addAll(arrayPolygonOne);
    polygonOptions.strokeColor(Color.CYAN);
    polygonOptions.strokeWidth(4);
    polygonOptions.fillColor(Color.CYAN);
    Polygon polygon = googleMap.addPolygon(polygonOptions);

}

private void drawPolygonsOne() {

    PolygonOptions polygonOptions = new PolygonOptions();
    polygonOptions.addAll(arrayPolygonOne);
    polygonOptions.strokeColor(Color.CYAN);
    polygonOptions.strokeWidth(4);
    polygonOptions.fillColor(Color.CYAN);
    Polygon polygon = googleMap.addPolygon(polygonOptions);

}

Answer 2

这是我的代码，动态绘制多个多边形区域：

List<LatLng> allArea;  

for(HeadArea area : data.getListHeadAreas()) {
      allArea = new ArrayList<>();

      for(DetailArea detailArea : area.getDetailAreas()) {
         allArea.add(new LatLng(detailArea.getLatitude(), detailArea.getLongitude()));
      }

      mMap.addPolygon(new PolygonOptions()
          .addAll(PolyUtil.simplify(allArea, 3))
          .fillColor(Color.RED)
          .strokeColor(Color.BLUE)
          .strokeWidth(3));
}

地图上有多个多边形

2 个答案: