在Flutter谷歌地图插件中的标记_icon下放置自定义文本

dependencies:
  google_maps_flutter: ^2.0.10

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

class MapScreen extends StatefulWidget {
  @override
  _MapScreenState createState() => _MapScreenState();
}

class _MapScreenState extends State<MapScreen> {
  GoogleMapController? _controller;
  Set<Marker> _markers = {};

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('Google Maps'),
      ),
      body: GoogleMap(
        initialCameraPosition: CameraPosition(
          target: LatLng(37.4219999, -122.0840575), // 初始位置
          zoom: 15.0, // 缩放级别
        ),
        markers: _markers,
        onMapCreated: (GoogleMapController controller) {
          _controller = controller;
          _addMarker();
        },
      ),
    );
  }

  void _addMarker() {
    final MarkerId markerId = MarkerId('customMarker');
    final BitmapDescriptor customIcon = BitmapDescriptor.fromAssetString(
      ImageConfiguration.empty,
      'assets/custom_icon.png', // 自定义图标
    );

    final Marker marker = Marker(
      markerId: markerId,
      position: LatLng(37.4219999, -122.0840575), // 标记位置
      icon: customIcon,
      infoWindow: InfoWindow(
        title: 'Custom Marker',
        snippet: 'This is a custom marker with text',
      ),
    );

    setState(() {
      _markers.add(marker);
    });
  }
}

flutter:
  assets:
    - assets/custom_icon.png