Function sync

example/Advanced/src/FABMenu.tsx:153–194

()

   * BackgroundGeolocation.sync()
   */
  const sync = async () => {
    try {
      if (isSyncing) {
        console.log('[FABMenu] Sync already in progress (ignored)');
        return;
      }

      const count = await BackgroundGeolocation.getCount();

      if (!count) {
        Alert.alert('Sync', 'Locations database is empty');
        return;
      }

      Alert.alert(
        'Confirm Sync',
        `Sync ${count} records?`,
        [
          { text: 'No', style: 'cancel' },
          {
            text: 'Yes',
            onPress: async () => {
              try {
                setIsSyncing(true);
                await BackgroundGeolocation.sync();
                console.log('[FABMenu] Sync complete');
              } catch (e) {
                console.warn('[FABMenu] Sync error:', e);
                Alert.alert('Sync error', String(e));
              } finally {
                setIsSyncing(false);
              }
            },
          },
        ],
        { cancelable: true }
      );
    } catch (e) {
      console.warn('[FABMenu] getCount/sync error:', e);
      Alert.alert('Sync error', String(e));
    }
  };

  /**
   * BackgroundGeolocation.resetOdometer()