[Google_maps_flutter] GoogleMapController.getZoomLevel fails with castError #78856
Description
Steps to Reproduce
This error occurs in google_maps_flutter: 2.0.1 package
- Install flutter 2.0.3
- Download official google flutter maps example from repo
- Add
print('Zoom: ${mapController?.getZoomLevel()}');somewhere in code e.g. move_camera.dart line 131TextButton( onPressed: () { print('Zoom: ${mapController?.getZoomLevel()}'); mapController?.moveCamera( CameraUpdate.zoomBy(-0.5), ); }, child: const Text('zoomBy'), ),
- Run example application in android emulator
- Open
Camera Controlexample and presszoomBybutton - Error occurs
type 'Future<double?>' is not a subtype of type 'Future<double>' in type cast
Logs
======== Exception caught by gesture ===============================================================
The following _CastError was thrown while handling a gesture:
type 'Future<double?>' is not a subtype of type 'Future<double>' in type cast
When the exception was thrown, this was the stack:
#0 MethodChannelGoogleMapsFlutter.getZoomLevel (package:google_maps_flutter_platform_interface/src/method_channel/method_channel_google_maps_flutter.dart:428:9)
#1 GoogleMapController.getZoomLevel (package:google_maps_flutter/src/controller.dart:281:47)
#2 MoveCameraState.build.<anonymous closure> (package:google_maps_flutter_example/move_camera.dart:131:51)
#3 _InkResponseState._handleTap (package:flutter/src/material/ink_well.dart:991:20)
#4 GestureRecognizer.invokeCallback (package:flutter/src/gestures/recognizer.dart:182:24)
...
Handler: "onTap"
Recognizer: TapGestureRecognizer#31387
debugOwner: GestureDetector
state: possible
won arena
finalPosition: Offset(301.4, 498.9)
finalLocalPosition: Offset(48.1, 19.9)
button: 1
sent tap down
====================================================================================================
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! Doctor found issues in 1 category.