From 32954b0a80b70e43bdf6a94b5b9db34fa1635d9e Mon Sep 17 00:00:00 2001
From: Anton Tananaev <anton@traccar.org>
Date: Fri, 13 Jun 2025 15:20:06 -0700
Subject: [PATCH] Heartbeat location update (fix #19)

---
 lib/main.dart | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/lib/main.dart b/lib/main.dart
index c9fbfa8..f2090bc 100644
--- a/lib/main.dart
+++ b/lib/main.dart
@@ -15,9 +15,20 @@ void main() async {
   FlutterError.onError = FirebaseCrashlytics.instance.recordFlutterFatalError;
   await Preferences.init();
   await bg.BackgroundGeolocation.ready(Preferences.geolocationConfig());
+  await bg.BackgroundGeolocation.registerHeadlessTask(headlessTask);
+  bg.BackgroundGeolocation.onHeartbeat((bg.HeartbeatEvent event) async {
+    await bg.BackgroundGeolocation.getCurrentPosition(samples: 1, persist: true);
+  });
   runApp(const MainApp());
 }
 
+@pragma('vm:entry-point')
+void headlessTask(bg.HeadlessEvent headlessEvent) async {
+  if (headlessEvent.name == bg.Event.HEARTBEAT) {
+    await bg.BackgroundGeolocation.getCurrentPosition(samples: 1, persist: true);
+  }
+}
+
 class MainApp extends StatefulWidget {
   const MainApp({super.key});