google_maps_flutter_android 2.19.0

Android implementation of the google_maps_flutter plugin.

example/lib/main.dart

// Copyright 2013 The Flutter Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

import 'dart:async';

import 'package:flutter/material.dart';
import 'package:google_maps_flutter_android/google_maps_flutter_android.dart';
import 'package:google_maps_flutter_platform_interface/google_maps_flutter_platform_interface.dart';

import 'advanced_marker_icons.dart';
import 'advanced_markers_clustering.dart';
import 'animate_camera.dart';
import 'clustering.dart';
import 'collision_behavior.dart';
import 'ground_overlay.dart';
import 'lite_mode.dart';
import 'map_click.dart';
import 'map_coordinates.dart';
import 'map_map_id.dart';
import 'map_ui.dart';
import 'marker_icons.dart';
import 'move_camera.dart';
import 'padding.dart';
import 'page.dart';
import 'place_advanced_marker.dart';
import 'place_circle.dart';
import 'place_marker.dart';
import 'place_polygon.dart';
import 'place_polyline.dart';
import 'scrolling_map.dart';
import 'snapshot.dart';
import 'tile_overlay.dart';

/// Place your map ID here. Map ID is required for pages that use advanced
/// markers.
const String? _mapId = null;

final List<GoogleMapExampleAppPage> _allPages = <GoogleMapExampleAppPage>[
  const MapUiPage(),
  const MapCoordinatesPage(),
  const MapClickPage(),
  const AnimateCameraPage(),
  const MoveCameraPage(),
  const PlaceMarkerPage(),
  const PlaceAdvancedMarkerPage(mapId: _mapId),
  const MarkerIconsPage(),
  const AdvancedMarkerIconsPage(mapId: _mapId),
  const ScrollingMapPage(),
  const PlacePolylinePage(),
  const PlacePolygonPage(),
  const PlaceCirclePage(),
  const PaddingPage(),
  const SnapshotPage(),
  const LiteModePage(),
  const TileOverlayPage(),
  const GroundOverlayPage(),
  const ClusteringPage(),
  const AdvancedMarkersClusteringPage(mapId: _mapId),
  const MapIdPage(),
  const AdvancedMarkerCollisionBehaviorPage(mapId: _mapId),
];

/// MapsDemo is the Main Application.
class MapsDemo extends StatelessWidget {
  /// Default Constructor
  const MapsDemo({super.key});

  void _pushPage(BuildContext context, GoogleMapExampleAppPage page) {
    Navigator.of(context).push(
      MaterialPageRoute<void>(
        builder: (_) => Scaffold(
          appBar: AppBar(title: Text(page.title)),
          body: page,
        ),
      ),
    );
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(title: const Text('GoogleMaps examples')),
      body: ListView.builder(
        itemCount: _allPages.length,
        itemBuilder: (_, int index) => ListTile(
          leading: _allPages[index].leading,
          title: Text(_allPages[index].title),
          onTap: () => _pushPage(context, _allPages[index]),
        ),
      ),
    );
  }
}

void main() {
  initializeMapRenderer();
  runApp(const MaterialApp(home: MapsDemo()));
}

Completer<AndroidMapRenderer?>? _initializedRendererCompleter;

/// Initializes map renderer to the `latest` renderer type, and calls
/// [GoogleMapsFlutterAndroid.warmup()].
///
/// The renderer must be requested before creating GoogleMap instances,
/// as the renderer can be initialized only once per application context.
Future<AndroidMapRenderer?> initializeMapRenderer() async {
  if (_initializedRendererCompleter != null) {
    return _initializedRendererCompleter!.future;
  }

  final completer = Completer<AndroidMapRenderer?>();
  _initializedRendererCompleter = completer;

  WidgetsFlutterBinding.ensureInitialized();

  final platform =
      GoogleMapsFlutterPlatform.instance as GoogleMapsFlutterAndroid;
  unawaited(
    platform
        .initializeWithRenderer(AndroidMapRenderer.latest)
        .then(
          (AndroidMapRenderer initializedRenderer) =>
              completer.complete(initializedRenderer),
        )
        .then((_) => platform.warmup()),
  );

  return completer.future;
}