How to Remove White Stripes at the Top and Bottom of flutterMap

If you are using flutterMap, you may have noticed white stripes appearing at the top and bottom of the map. These stripes are caused by the default tile provider used by flutterMap. In this article, we will guide you on how to remove these white stripes and achieve a seamless map experience.

Step 1: Install Required Packages

To remove the white stripes, we need to use a different tile provider. Open your project and add the following packages to your pubspec.yaml file:

dependencies:
  flutter_map: ^0.12.0
  cached_network_image: ^2.5.1
  flutter_cache_manager: ^3.3.0
  

Save the file and run flutter pub get to install the packages.

Step 2: Implement the Custom Tile Provider

Now, let's create a custom tile provider that will remove the white stripes. In your project, create a new file called custom_tile_provider.dart and add the following code:

import 'package:flutter_map/flutter_map.dart';
import 'package:cached_network_image/cached_network_image.dart';
import 'package:flutter_cache_manager/flutter_cache_manager.dart';

class CustomTileProvider extends TileProvider {
  final String baseUrl;

  CustomTileProvider(this.baseUrl);

  @override
  ImageProvider getImage(Tile tile) {
    return CachedNetworkImageProvider(
      '$baseUrl/${tile.z}/${tile.x}/${tile.y}.png',
      cacheManager: DefaultCacheManager(),
    );
  }
}
  

This custom tile provider uses the cached_network_image package to fetch and cache map tiles from the specified URL. Replace baseUrl with the URL of the tile provider you want to use.

Step 3: Implement the flutterMap Widget

Now, let's update your flutterMap widget to use the custom tile provider. Open the file where you have your flutterMap widget and modify it as follows:

import 'package:flutter/material.dart';
import 'package:flutter_map/flutter_map.dart';
import 'package:latlong/latlong.dart';
import 'custom_tile_provider.dart';

class MapScreen extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return FlutterMap(
      options: MapOptions(
        center: LatLng(37.7749, -122.4194),
        zoom: 13.0,
      ),
      layers: [
        TileLayerOptions(
          tileProvider: CustomTileProvider('https://your-tile-provider-url.com'),
          maxZoom: 18,
          urlTemplate: 'https://your-tile-provider-url.com/{z}/{x}/{y}.png',
        ),
      ],
    );
  }
}
  

Make sure to replace 'https://your-tile-provider-url.com' with the URL of the tile provider you want to use.

Step 4: Run the Application

Save all the changes and run your application. The white stripes at the top and bottom of the map should now be removed, providing a seamless map experience.

By implementing a custom tile provider in flutterMap, you can remove the white stripes at the top and bottom of the map. This enhances the visual appeal and user experience of your map-based applications. Enjoy exploring the world without any distractions!

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