OSM Search and Pick

A Flutter place search and location picker plugin that uses Open Street Map. It is completely free, easy to use, and highly customizable.

Features

• 📍 Pick location from map: Interactive map for selecting precise coordinates.
• 🔍 Search location by places: Integrated search bar for finding addresses via Nominatim.
• 🚀 Easy to use: Minimal setup required to get started.
• 🎨 Highly Customizable: Change icons, colors, text styles, and more.
• ⭕ Zones Support: Draw multiple circles with custom radius (meters), color and borders.
• 📌 Multiple Pins: Add multiple markers with custom icons, titles, and details.
• 👆 Interactive Markers: Markers and zones can show details on tap with custom designed widgets.
• 👁️ Preview Mode: Use the map in read-only mode for viewing only.
• 📱 Platform Support: Works on Android, iOS, and Web.

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Picker Mode

Read-Only Mode

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Requirements

This package uses the geolocator package to get the user's current location. You must add the following permissions to your project.

Android

Add the following to your AndroidManifest.xml:

<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />

iOS

Add the following to your Info.plist:

<key>NSLocationWhenInUseUsageDescription</key>
<string>This app needs access to location when open to show your current position on the map.</string>
<key>NSLocationAlwaysUsageDescription</key>
<string>This app needs access to location when in the background to show your current position on the map.</string>

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Tile Usage Policy

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Installation

Add osm_search_and_pick to your pubspec.yaml:

dependencies:
  osm_search_and_pick: ^0.3.0

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Usage

Simple Implementation

import 'package:flutter/material.dart';
import 'package:osm_search_and_pick/open_street_map_search_and_pick.dart';

void main() => runApp(const MaterialApp(home: MyApp()));

class MyApp extends StatelessWidget {
  const MyApp({super.key});

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: OpenStreetMapSearchAndPick(
        onPicked: (pickedData) {
          print(pickedData.latLong.latitude);
          print(pickedData.latLong.longitude);
          print(pickedData.address);
          print(pickedData.addressName);
        },
      ),
    );
  }
}

OpenStreetMapSearchAndPick(
    initialCenter: LatLong(23, 89),
    buttonColor: Colors.blue,
    buttonText: 'Set Current Location',
    locationPinIcon: Icons.location_on,
    locationPinText: 'Store Location',
    backgroundColor: Colors.white,
    isReadOnly: false,
    zones: [
      ZoneData(
        center: LatLong(23, 89),
        radius: 500,
        color: Colors.blue.withOpacity(0.3),
        borderColor: Colors.blue,
        borderStrokeWidth: 2,
        title: 'Work Zone',
        detail: 'Office building area',
      ),
    ],
    pins: [
      PinData(
        latLong: LatLong(23.1, 89.1),
        title: 'Delivery Point',
        color: Colors.red,
      ),
    ],
    onPicked: (pickedData) {
      // Handle the picked data
      setState(() {
          selectedAddress = pickedData.addressName;
      });
    }
)

Interactive & Customizable Markers

Markers (Pins and Zone Centers) now support tap interactions. By default, tapping a marker reveals its title and detail. You can provide a detailWidget for a completely custom design.

PinData(
  latLong: LatLong(23.1, 89.1),
  title: 'Custom Pin',
  detailWidget: Container(
    padding: EdgeInsets.all(8),
    decoration: BoxDecoration(
      color: Colors.blue,
      borderRadius: BorderRadius.circular(8),
    ),
    child: Text('Custom UI', style: TextStyle(color: Colors.white)),
  ),
  onTap: () => print('Tapped!'),
)

ZoneData(
  center: LatLong(23, 89),
  radius: 100,
  title: 'Safe Zone',
  detail: 'Authorized personnel only',
  detailWidget: Card(
    color: Colors.green,
    child: Padding(
      padding: EdgeInsets.all(8.0),
      child: Text('Protected Area', style: TextStyle(color: Colors.white)),
    ),
  ),
  onTap: () => print('Zone tapped!'),
)

Preview (Read-Only) Mode

Disable search, center pin, and the "Set Location" button to use the map as a simple viewer.

OpenStreetMapSearchAndPick(
  isReadOnly: true,
  onPicked: (_) {}, // Required but not used in read-only mode
  zones: [...],
  pins: [...],
)

---

Customization Options

Property	Description	Default
onPicked	Callback function when a location is selected.	Required
initialCenter	Starting coordinates for the map.	User's current location
initialZoom	Initial zoom level of the map.	15.0
maxZoom	Maximum zoom level allowed.	18.0
minZoom	Minimum zoom level allowed.	6.0
tileUrlTemplate	Custom Tile Server URL template.	'https://tile.openstreetmap.org/{z}/{x}/{y}.png'
userAgentPackageName	Application package name. Useful for compliant usage of OpenStreetMap Tile servers.	'osm_search_and_pick'
buttonColor	Color of the FABs and 'Set Location' button.	Colors.blue
buttonText	Text displayed on the 'Set Location' button.	'Set Current Location'
buttonBorderRadius	Border radius for the 'Set Location' button.	5.0
buttonElevation	Elevation for the 'Set Location' button.	2.0
hintText	Text displayed in the search bar.	'Search Location'
zoomInIcon	Icon for zooming in.	Icons.zoom_in_map
zoomOutIcon	Icon for zooming out.	Icons.zoom_out_map
currentLocationIcon	Icon for tracking current location.	Icons.my_location
locationPinTextStyle	Text style for the label above the center pin.	TextStyle(...)
locationPinText	Label above the center pin.	'Location'
showZoomButtons	Whether to show zoom in/out buttons.	true
showCurrentLocationButton	Whether to show the current location button.	true
showSearchBar	Whether to show the search bar.	true
showSetLocationButton	Whether to show the main "Set Location" button.	true
backgroundColor	Background color for search bar and results.	Colors.white
isReadOnly	Enables read-only mode (hides picker/search UI).	false
zones	List of ZoneData to draw circles on the map.	[]
pins	List of PinData to draw custom markers.	[]

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Picked Data Object

The onPicked callback returns a PickedData object containing:

• latLong: Contains latitude and longitude.
• addressName: The full display name of the location.
• address: A Map<String, dynamic> containing detailed address parts (city, country, etc.).

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License

This project is licensed under the MIT License - see the LICENSE file for details.