buildTileLayer function

Widget buildTileLayer({ required MapTileType mapType, required bool darkMode, String lang = 'en', String country = 'Us', int keepBuffer = 5, String packageName = 'com.te_widgets.app', })

Implementation

Widget buildTileLayer({
  required MapTileType mapType,
  required bool darkMode,
  String lang = 'en',
  String country = 'Us',
  int keepBuffer = 5,
  String packageName = 'com.te_widgets.app',
}) {
  TileLayer tileLayer;

  switch (mapType) {
    case MapTileType.osm:
      tileLayer = TileLayer(
        urlTemplate: 'https://{s}.basemaps.cartocdn.com/{style}/{z}/{x}/{y}{scale}.png',
        subdomains: const ['a', 'b', 'c', 'd'],
        additionalOptions: {
          'style': darkMode ? 'dark_all' : 'light_all',
          'scale': '@2x',
        },
        userAgentPackageName: packageName,
        keepBuffer: keepBuffer,
      );
      if (darkMode) {
        return RepaintBoundary(
          child: ColorFiltered(
            colorFilter: const ColorFilter.matrix(<double>[
              // dart format:off
              1.1, 0, 0, 0, 2,
              0, 1.3, 0, 0, 0,
              0, 0, 1.4, 0, 4,
              0, 0, 0, 1, 0,
            ]),
            child: tileLayer,
          ),
        );
      } else {
        return RepaintBoundary(
          child: ColorFiltered(
            colorFilter: const ColorFilter.matrix(<double>[
              // dart format:off
              1.02, 0, 0, 0, 1,
              0, 1.06, 0, 0, -4,
              0, 0, 1.07, 0, -2,
              0, 0, 0, 1, 0,
            ]),
            child: tileLayer,
          ),
        );
      }
      break;

    case MapTileType.google:
      tileLayer = TileLayer(
        urlTemplate: 'https://mt{s}.google.com/vt/lyrs=m@221097000&hl={hl}&gl={gl}&x={x}&y={y}&z={z}',
        subdomains: const ['0', '1', '2', '3'],
        additionalOptions: {
          'userAgent': packageName,
          'hl': lang,
          'gl': country,
        },
        keepBuffer: keepBuffer,
      );
      if (darkMode) {
        return RepaintBoundary(
          child: ColorFiltered(
            colorFilter: const ColorFilter.matrix(<double>[
              -0.2,
              -0.5,
              -0.3,
              0,
              255,
              -0.3,
              -0.5,
              -0.2,
              0,
              255,
              -0.3,
              -0.2,
              -0.5,
              0,
              255,
              0,
              0,
              0,
              1,
              0,
            ]),
            child: tileLayer,
          ),
        );
      }
      break;

    case MapTileType.satellite:
      tileLayer = TileLayer(
        urlTemplate: 'https://server.arcgisonline.com/ArcGIS/rest/services/World_Imagery/MapServer/tile/{z}/{y}/{x}',
        keepBuffer: keepBuffer,
      );
      break;
  }

  return RepaintBoundary(child: tileLayer);
}