Flutter Tabs and Maps - flutter

Question

I am using google maps in my project, i use it in different pages, but one page i have that i use tabviews, one of these tabs is the google map. however when ever i click on the tab the app crashes out, seems to be on android only it does this. I have tried it wih the SafeArea and without, make no difference. the first window opens just when touch to go to the map tab it crashes out.
Works fine on IOS, same code works on other pages but they dont have tabs
#override
Widget build(BuildContext context) {
return DefaultTabController(
length: 2,
child: Scaffold(
appBar: AppBar(
title: Text(
widget.amenityName,
style: GoogleFonts.kaushanScript(fontSize: 20, color: Colors.white),
),
bottom: const TabBar(
tabs: [
Tab(icon: Icon(Icons.home)),
Tab(icon: Icon(Icons.map)),
],
),
),
body: TabBarView(
children: [amenity(), showGoogleMap()],
),
),
);
}
Widget amenity() {
return FutureBuilder(
future: getAmenity(widget.amenityID),
builder: (BuildContext context,
AsyncSnapshot<AmenityDetailsDataSet> snapshot) {
if (snapshot.connectionState == ConnectionState.waiting) {
return const Center(child: CircularProgressIndicator());
} else if (snapshot.error != null) {
return const Center(child: Text('an error occured!'));
} else {.................
}
Widget showGoogleMap() {
return SafeArea(
child: GoogleMap(
mapToolbarEnabled: false,
buildingsEnabled: false,
zoomControlsEnabled: true,
compassEnabled: true,
myLocationButtonEnabled: false,
scrollGesturesEnabled: true,
tiltGesturesEnabled: false,
trafficEnabled: false,
zoomGesturesEnabled: true,
rotateGesturesEnabled: false,
mapType: MapType.hybrid,
onMapCreated: _onMapCreated,
initialCameraPosition: CameraPosition(
target: widget.coords,
zoom: zoomLevel,
),
markers: _markers.values.toSet(),
),
);
}