小编Omo*_*uqe的帖子

我想在颤振开发时在谷歌地图的自定义标记中添加数字。我在下面分享了我的完整来源。所以请帮助我，如何修改我的源来解决我的问题。感谢我的依赖：

custom_marker_icon: ^0.2.0  


import 'package:flutter/material.dart';
import 'package:google_maps_flutter/google_maps_flutter.dart';
import 'package:custom_marker_icon/custom_marker_icon.dart';


class FlutterAnimarkerExample extends StatefulWidget {
  @override
  _FlutterAnimarkerExampleState createState() =>
      _FlutterAnimarkerExampleState();
}

class _FlutterAnimarkerExampleState extends State<FlutterAnimarkerExample> {
  final LatLng _latLng = LatLng(28.7041, 77.1025);
  final double _zoom = 15.0;

  Set<Marker> _markers = {};

  void _addMarkers() async {
    BitmapDescriptor markerIcon = await CustomMarkerIcon.fromIcon(
      Icons.circle,
      Colors.blue,
      100,
    );
    setState(() {
      _markers.add(
        Marker(
          markerId: MarkerId("marker_id"),
          position: _latLng,
          icon: markerIcon,
        ),
      );
    });
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('Custom Marker Icon …