ar_location_view

Augmented reality for geolocation. Inspired HDAugmentedReality

Demo

Description

ArLocationView is designed to used in areas with large concentration of static POIs. Where primary goal is the visibility of all POIs.

Remark: Altitudes of POIs are disregarded

Features

Automatic vertical stacking of annotations views
Tracks user movement and updates visible annotations
Fully customisable annotation view
Supports all rotations

Basic usage

Look at the example

For iOs

ArLocationView use device camera and location, add in Info.plist

<key>NSLocationWhenInUseUsageDescription</key>
<key>NSLocationUsageDescription</key>
<key>NSLocationAlwaysUsageDescription</key>
<key>NSLocationAlwaysAndWhenInUseUsageDescription</key>
<key>NSCameraUsageDescription</key>

For Android

Add permission in manifest.xml

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

Create class extend ArAnnotation

class Annotation extends ArAnnotation {
  final AnnotationType type;
  
  Annotation({required super.uid, required super.position, required this.type});
}

Create a widget for Annotation view for example

class AnnotationView extends StatelessWidget {
  const AnnotationView({
    Key? key,
    required this.annotation,
  }) : super(key: key);

  final Annotation annotation;

  @override
  Widget build(BuildContext context) {
    return Container(
      decoration: BoxDecoration(
        borderRadius: BorderRadius.circular(5),
        color: Colors.white,
      ),
      child: Row(
        children: [
          Expanded(
            child: Container(
              decoration: const BoxDecoration(
                borderRadius: BorderRadius.only(
                  topLeft: Radius.circular(5),
                  bottomLeft: Radius.circular(5),
                ),
              ),
              child: typeFactory(annotation.type),
            ),
          ),
          Expanded(
            flex: 2,
            child: Padding(
              padding: const EdgeInsets.all(4.0),
              child: Column(
                crossAxisAlignment: CrossAxisAlignment.start,
                mainAxisAlignment: MainAxisAlignment.spaceBetween,
                children: [
                  Text(
                    annotation.type.toString().substring(15),
                    maxLines: 1,
                    style: const TextStyle(fontWeight: FontWeight.bold),
                  ),
                  Text(
                    '${annotation.distanceFromUser.toInt()} m',
                  ),
                ],
              ),
            ),
          )
        ],
      ),
    );
  }

  Widget typeFactory(AnnotationType type) {
    IconData iconData = Icons.ac_unit_outlined;
    Color color = Colors.teal;
    switch (type) {
      case AnnotationType.pharmacy:
        iconData = Icons.local_pharmacy_outlined;
        color = Colors.red;
        break;
      case AnnotationType.hotel:
        iconData = Icons.hotel_outlined;
        color = Colors.green;
        break;
      case AnnotationType.library:
        iconData = Icons.library_add_outlined;
        color = Colors.blue;
        break;
    }
    return Icon(
      iconData,
      size: 40,
      color: color,
    );
  }
}

License

ArLocationView is released under the MIT license.

kabiln/ar_location_view