vector_map_tiles 1.0.22

A plugin for `flutter_map` that enables the use of vector tiles.

example/lib/main.dart

import 'package:flutter/material.dart';
import 'package:flutter_map/flutter_map.dart';
import 'package:latlong2/latlong.dart';
import 'package:vector_map_tiles/vector_map_tiles.dart';
import 'package:vector_tile_renderer/vector_tile_renderer.dart';
import 'api_key.dart';

void main() {
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'vector_map_tiles Example',
      theme: ThemeData.light(),
      home: MyHomePage(title: 'vector_map_tiles Example'),
    );
  }
}

class MyHomePage extends StatefulWidget {
  MyHomePage({Key? key, required this.title}) : super(key: key);

  final String title;

  @override
  _MyHomePageState createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
        appBar: AppBar(
          title: Text(widget.title),
        ),
        body: SafeArea(
            child: Column(children: [
          Flexible(
              child: FlutterMap(
            options: MapOptions(
                center: LatLng(49.246292, -123.116226),
                zoom: 10,
                maxZoom: 18,
                plugins: [VectorMapTilesPlugin()]),
            layers: <LayerOptions>[
              // normally you would see TileLayerOptions which provides raster tiles
              // instead this vector tile layer replaces the standard tile layer
              VectorTileLayerOptions(
                  theme: _mapTheme(context),
                  tileProvider: MemoryCacheVectorTileProvider(
                      delegate: NetworkVectorTileProvider(
                          urlTemplate: _urlTemplate(),
                          // this is the maximum zoom of the provider, not the
                          // maximum of the map. vector tiles are rendered
                          // to larger sizes to support higher zoom levels
                          maximumZoom: 14),
                      maxSizeBytes: 1024 * 1024 * 2)),
            ],
          ))
        ])));
  }

  _mapTheme(BuildContext context) {
    // maps are rendered using themes
    // to provide a dark theme do something like this:
    // if (MediaQuery.of(context).platformBrightness == Brightness.dark) return myDarkTheme();
    return ProvidedThemes.lightTheme();
  }

  String _urlTemplate() {
    // Stadia Maps source https://docs.stadiamaps.com/vector/
    return 'https://tiles.stadiamaps.com/data/openmaptiles/{z}/{x}/{y}.pbf?api_key=$apiKey';

    // Mapbox source https://docs.mapbox.com/api/maps/vector-tiles/#example-request-retrieve-vector-tiles
    // return 'https://api.mapbox.com/v4/mapbox.mapbox-streets-v8/{z}/{x}/{y}.mvt?access_token=$apiKey',
  }
}