flutter_map_tile_caching 9.1.3

Plugin for 'flutter_map' providing advanced caching functionality, with ability to download map regions for offline use.

example/lib/main.dart

import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:flutter_map_tile_caching/flutter_map_tile_caching.dart';
import 'package:google_fonts/google_fonts.dart';
import 'package:provider/provider.dart';

import 'screens/configure_download/state/configure_download_provider.dart';
import 'screens/initialisation_error/initialisation_error.dart';
import 'screens/main/main.dart';
import 'screens/main/pages/downloading/state/downloading_provider.dart';
import 'screens/main/pages/map/state/map_provider.dart';
import 'screens/main/pages/region_selection/state/region_selection_provider.dart';
import 'shared/state/general_provider.dart';

void main() async {
  WidgetsFlutterBinding.ensureInitialized();
  SystemChrome.setSystemUIOverlayStyle(
    const SystemUiOverlayStyle(
      statusBarColor: Colors.transparent,
      statusBarIconBrightness: Brightness.dark,
    ),
  );

  Object? initErr;
  try {
    await FMTCObjectBoxBackend().initialise();
  } catch (err) {
    initErr = err;
  }

  runApp(_AppContainer(initialisationError: initErr));
}

class _AppContainer extends StatelessWidget {
  const _AppContainer({
    required this.initialisationError,
  });

  final Object? initialisationError;

  @override
  Widget build(BuildContext context) {
    final themeData = ThemeData(
      brightness: Brightness.dark,
      useMaterial3: true,
      textTheme: GoogleFonts.ubuntuTextTheme(ThemeData.dark().textTheme),
      colorSchemeSeed: Colors.red,
      switchTheme: SwitchThemeData(
        thumbIcon: WidgetStateProperty.resolveWith(
          (states) => Icon(
            states.contains(WidgetState.selected) ? Icons.check : Icons.close,
          ),
        ),
      ),
    );

    if (initialisationError case final err?) {
      return MaterialApp(
        title: 'FMTC Demo (Initialisation Error)',
        theme: themeData,
        home: InitialisationError(err: err),
      );
    }

    return MultiProvider(
      providers: [
        ChangeNotifierProvider(
          create: (_) => GeneralProvider(),
        ),
        ChangeNotifierProvider(
          create: (_) => MapProvider(),
          lazy: true,
        ),
        ChangeNotifierProvider(
          create: (_) => RegionSelectionProvider(),
          lazy: true,
        ),
        ChangeNotifierProvider(
          create: (_) => ConfigureDownloadProvider(),
          lazy: true,
        ),
        ChangeNotifierProvider(
          create: (_) => DownloadingProvider(),
          lazy: true,
        ),
      ],
      child: MaterialApp(
        title: 'FMTC Demo',
        theme: themeData,
        home: const MainScreen(),
      ),
    );
  }
}