Flutter和google_maps_flutter -为单击"my location“按钮添加侦听器(setOnMyLocationButtonClickListener?)

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 mapController;

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('Map'),
      ),
      body: GoogleMap(
        onMapCreated: (controller) {
          setState(() {
            mapController = controller;
          });
        },
        initialCameraPosition: CameraPosition(
          target: LatLng(37.7749, -122.4194), // 初始位置
          zoom: 12.0, // 缩放级别
        ),
      ),
      floatingActionButton: FloatingActionButton(
        onPressed: () {
          // 处理"my location"按钮点击事件
          // 在这里添加你的代码逻辑
        },
        child: Icon(Icons.my_location),
      ),
    );
  }
}