import 'package:flutter/material.dart'; import 'package:flutter_map/flutter_map.dart'; import 'package:flutter_map_tile_caching/flutter_map_tile_caching.dart'; class BaseLayer extends StatelessWidget { const BaseLayer({Key? key}) : super(key: key); @override Widget build(BuildContext context) { return TileLayer( urlTemplate: "https://cyberjapandata.gsi.go.jp/xyz/std/{z}/{x}/{y}.png", tileProvider: FMTC.instance('OpenStreetMap (A)').getTileProvider( settings: FMTCTileProviderSettings( behavior: CacheBehavior.values.byName('cacheFirst'), cachedValidDuration: const Duration(days: 14), ), ), ); } } // var Esri_WorldImagery = L.tileLayer('https://server.arcgisonline.com/ArcGIS/rest/services/World_Imagery/MapServer/tile/{z}/{y}/{x}', { // attribution: 'Tiles © Esri — Source: Esri, i-cubed, USDA, USGS, AEX, GeoEye, Getmapping, Aerogrid, IGN, IGP, UPR-EGP, and the GIS User Community' // });