flutter_map_location_marker
A flutter_map plugin for displaying device current location.
Join flutter_map Discord server. Talk
about flutter_map_location_marker
, get and give help in #plugins channel.
Features
-
Simple: The only thing to do is adding a
LocationMarkerLayerWidget()
in to your map because all parameters have good default values. -
Flexible: The default implementation is receiving device's position from the geolocator package and receiving device's heading from the flutter_compass package, but with type conversion, streams from other source are also supported.
-
Auto-centering: The map center on the new location when location is updated. This feature is disabled by default.
-
Auto-rotating: The map can be rotated automatically as navigation mode. This feature is disabled by default.
-
Customization: The location marker can be fully customized, even the colors of accuracy circle and header.
Usage
Add flutter_map_location_marker to your pubspec.yaml:
dependencies:
flutter_map_location_marker: any // or latest verion
Add permission, please follow the instruction from geolocator package.
Add the layer widget into FlutterMap
:
Widget build(BuildContext context) {
return FlutterMap(
children: [
TileLayerWidget(
options: TileLayerOptions(
urlTemplate: 'https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png',
subdomains: ['a', 'b', 'c'],
),
),
LocationMarkerLayerWidget(), // <-- add layer widget here
],
);
}
Alternatively, you can use the old style to create the layer:
Widget build(BuildContext context) {
return FlutterMap(
options: MapOptions(
plugins: [
LocationMarkerPlugin(), // <-- add plugin here
],
),
layers: [
TileLayerOptions(
urlTemplate: 'https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png',
subdomains: ['a', 'b', 'c'],
),
LocationMarkerLayerOptions(), // <-- add layer options here
],
);
}
Discover more parameters in LocationMarkerPlugin and LocationMarkerLayerOptions .
Widget build() {
return LocationMarkerLayerWidget(
plugin: LocationMarkerPlugin(
centerOnLocationUpdate: CenterOnLocationUpdate.always,
turnOnHeadingUpdate: TurnOnHeadingUpdate.never,
),
options: LocationMarkerLayerOptions(
marker: const DefaultLocationMarker(
child: Icon(
Icons.navigation,
color: Colors.white,
),
),
markerSize: const Size(40, 40),
markerDirection: MarkerDirection.heading,
),
);
}
Examples
-
Marker Customization : Change the marker to any widget you want.
-
Floating Action Button for Centering Current Location : Use a floating action button to move and zoom the map to current location.
-
Change Geolocator Settings : Define Geolocator settings yourself.
-
Selectable Distance Filter : Change Geolocator settings at the runtime.
-
Custom Stream : Use your own stream, such as position stream from other library or predefined route, as the source.
-
Navigation Mode : Rotate the map to keep heading pointing upward.