在Flutter中堆叠带有Google地图和容器的Widget

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

Stack(
  children: [
    GoogleMap(
      initialCameraPosition: CameraPosition(
        target: LatLng(37.42796133580664, -122.085749655962),
        zoom: 14,
      ),
    ),
    Container(
      width: double.infinity,
      height: double.infinity,
      color: Colors.black.withOpacity(0.5),
      child: Center(
        child: Text(
          'Hello, Flutter!',
          style: TextStyle(
            color: Colors.white,
            fontSize: 24,
          ),
        ),
      ),
    ),
  ],
)

dependencies:
  flutter:
    sdk: flutter
  google_maps_flutter: ^2.0.10