Author's Note: this plugin is not officially supported and is meant to be used as an example. Please feel free to pull it into your own projects, but there is no official version hosted on pub.dev and support may be limited. If you run into any issues running this sample, please file an issue or, even better, submit a pull request!
What is geofencing? here
A sample geofencing plugin with background execution support for Flutter.
This plugin works on both Android and iOS. Follow the instructions in the following sections for the platforms which are to be targeted.
Add the following lines to your AndroidManifest.xml to register the background service for
geofencing:
<receiverandroid:name="io.flutter.plugins.geofencing.GeofencingBroadcastReceiver"android:enabled="true"android:exported="true"/>
<serviceandroid:name="io.flutter.plugins.geofencing.GeofencingService"android:permission="android.permission.BIND_JOB_SERVICE"android:exported="true"/>Also request the correct permissions for geofencing:
<uses-permissionandroid:name="android.permission.ACCESS_FINE_LOCATION"/>
<uses-permissionandroid:name="android.permission.ACCESS_BACKGROUND_LOCATION" />Finally, create either Application.kt or Application.java in the same directory as MainActivity.
For Application.kt, use the following:
classApplication : FlutterApplication(), PluginRegistrantCallback {
overridefunonCreate() {
super.onCreate();
GeofencingService.setPluginRegistrant(this);
}
overridefunregisterWith(registry:PluginRegistry) {
GeneratedPluginRegistrant.registerWith(registry);
}
}For Application.java, use the following:
publicclassApplicationextendsFlutterApplicationimplementsPluginRegistrantCallback {
@OverridepublicvoidonCreate() {
super.onCreate();
GeofencingService.setPluginRegistrant(this);
}
@OverridepublicvoidregisterWith(PluginRegistryregistry) {
GeneratedPluginRegistrant.registerWith(registry);
}
}Which must also be referenced in AndroidManifest.xml:
<applicationandroid:name=".Application"
...Add the following lines to your Info.plist:
<dict>
<key>NSLocationAlwaysAndWhenInUseUsageDescription</key>
<string>YOUR DESCRIPTION HERE</string>
<key>NSLocationWhenInUseUsageDescription</key>
<string>YOUR DESCRIPTION HERE</string>
...And request the correct permissions for geofencing:
<dict>
...
<string>Main</string>
<key>UIRequiredDeviceCapabilities</key>
<array>
<string>location-services</string>
<string>gps</string>
<string>armv7</string>
</array>
<key>UIBackgroundModes</key>
<array>
<string>location</string>
</array>
...
</dict>For help getting started with Flutter, view our online documentation.
For help on editing plugin code, view the documentation.