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[Help Wanted]: App isn't re-launching in iOS killed state #2497

@mlickei

Description

@mlickei

Required Reading

  • Confirmed

Plugin Version

5.0.3

Mobile operating-system(s)

  • iOS
  • Android

Device Manufacturer(s) and Model(s)

iPhone 17 pro max

Device operating-systems(s)

iOS 26.2.1

React Native / Expo version

"react-native": "0.81.5", "expo": "54.0.25"

What do you require assistance about?

We're having issues with getting updated location information when the application is killed by the user in iOS. As far as we understand things, the application should re-awake and start pushing location information again after breaking the ~200m geofence that is set when the app is killed. We're not seeing that re-awake after ~200m, but we do see it happen when you enter or exit other geofences (but then it goes back to a terminated state after 10-30 seconds).

[Optional] Plugin Code and/or Config

async function configureBackgroundGeolocation(): Promise<State> {
    if (isConfigured) {
        return BackgroundGeolocation.getState();
    }
    
    // Get the API URL for native HTTP sync
    const apiUrl = API_URL || "";
    const uploadUrl = apiUrl ? `${apiUrl}/locations/upload` : "";
    
    // Get auth token for initial configuration
    const token = await AsyncStorage.getItem(STORAGE_KEYS.AUTH_TOKEN);
    const state = await BackgroundGeolocation.ready({
        geolocation: {
          desiredAccuracy: BackgroundGeolocation.DesiredAccuracy.High,
          distanceFilter: 2,
          disableStopDetection: false,
          stopTimeout: 60,
          stationaryRadius: 25,
          disableElasticity: false,
          activityType: BackgroundGeolocation.ActivityType.OtherNavigation,
          showsBackgroundLocationIndicator: true,
          pausesLocationUpdatesAutomatically: false,
          locationAuthorizationRequest: "Always",
        },
        activity: {
          motionTriggerDelay: 0,
          disableMotionActivityUpdates: false,
        },
        app: {
          stopOnTerminate: false,
          startOnBoot: true,
          enableHeadless: true,
          heartbeatInterval: 60,
          preventSuspend: true,
        },
        http: {
          url: uploadUrl,
          autoSync: true,
          autoSyncThreshold: 0,
          batchSync: false,
          maxBatchSize: 1,
          headers: {
            ...(token ? { Authorization: `Bearer ${token}` } : {}),
          },
          rootProperty: '.',
        },
        persistence: {
          locationTemplate: '{"latitude":<%= latitude %>,"longitude":<%= longitude %>,"altitude":<%= altitude %>,"accuracy":<%= accuracy %>,"speed":<%= speed %>,"heading":<%= heading %>,"timestamp":"<%= timestamp %>","motion_state":"<%= activity.type %>","battery_level":<%= battery.level %>,"battery_charging":<%= battery.is_charging %>}',
          maxDaysToPersist: 3,
        },
        logger: {
          debug: true,
          logLevel: BackgroundGeolocation.LogLevel.Verbose,
        },
    });
    
    isConfigured = true;
    console.log("[BackgroundLocation] Configured with native HTTP sync:", {
        enabled: state.enabled,
        url: uploadUrl,
        hasToken: !!token,
    });
    
    // Apply geofence-specific settings for iOS reliability
    try {
        await BackgroundGeolocation.setConfig({
        geofenceInitialTriggerEntry: true,
        geofenceProximityRadius: 1000,
    } as any);
        console.log("[BackgroundLocation] Geofence settings applied");
    } catch (err) {
        console.error("[BackgroundLocation] Failed to apply geofence settings:", err);
    }
    
    
  return state;
}

[Optional] Relevant log output

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