google_maps_flutter as a tab flakey in iOS

[hoek]

Hi,
all.

The map widget as one of three tabs works well in Android.

In iOS:
When you switch tags by dragging your finger it SOMETIMES shows the wrong zoom and location.
It continues to do this when you click the "Go to London" button.
IE it is in a bad state.

(It works well when you switch tabs by touching their labels at the top.)

Am I using the wrong call in
void _onMapCreated(GoogleMapController controller) {
?

Seems like it is a bug...

//main.dart fragment:
body: TabBarView(
            children: [
              WidgetB(),
              WidgetA(),
              MapWidget(),
            ],
          ),
         
         
import 'package:flutter/material.dart';
import 'package:google_maps_flutter/google_maps_flutter.dart';


class MapWidget extends StatefulWidget {
  @override
  State createState() => MapWidgetState();
}

class MapWidgetState extends State<MapWidget> {

  GoogleMapController mapController;
 
  @override
  Widget build(BuildContext context) {
    return Padding(
      padding: EdgeInsets.all(15.0),
      child: Column(
        mainAxisAlignment: MainAxisAlignment.spaceEvenly,
        children: <Widget>[
          Center(
            child: SizedBox(
              width: 300.0,
              height: 200.0,
              child: GoogleMap(
                onMapCreated: _onMapCreated,
              ),
            ),
          ),
          RaisedButton(
            child: const Text('Go to London'),
            onPressed: mapController == null ? null : () {
              mapController.animateCamera(CameraUpdate.newCameraPosition(
                CameraPosition(
                  bearing: 270.0,
                  target: LatLng(51.5160895, -0.1294527),//London location
                  tilt: 30.0,
                  zoom: 17.0,
                ),
              ));
            },
          ),
        ],
      ),
    );
  }

  void _onMapCreated(GoogleMapController controller) {
    setState(() { mapController = controller; });
 
    CameraPosition cameraPosition = CameraPosition(
                  target: LatLng(51.5160895+2, -0.1294527-1), //Fish Bits location
                  zoom: 17.0,
                );

     var cameraUpdate = CameraUpdate.newCameraPosition(cameraPosition);
     mapController.moveCamera(cameraUpdate);
  }
}

[Amir Hardon]

Sounds like this issue: https://github.com/flutter/flutter/issues/24806

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