Flutter web apps on iOS 18.2 have issues only fixed in the most recent flutter version 3.27.0 (which mapbox_gl is not able to compile to)

[TBA-Lucas]

The most recent iOS 18.2 update introduced a big issue for Flutter web apps regarding fingure and scroll gestures. There seems to be a fix for that only in the most recent flutter version 3.27.0. Unfortunately it seems like an app using mapbox_gl is not able to compile to that version.

iOS 18.2 Related issues and pull requests:

flutter/flutter#158299
flutter/flutter#155987
flutter/engine#56719
flutter/engine#56949

It seems that on the way from 3.24 to 3.27 the flutter team introduced some breaking changes for mapbox_gl, I'm getting compile errors. They seem to be related to the method 'hashValues' causing errors in mapbox_gl_platform_interface.dart:

Error: The method 'hashValues' isn't defined for the class 'LatLng'.
 - 'LatLng' is from 'package:mapbox_gl_platform_interface/mapbox_gl_platform_interface.dart'
 
Error: The method 'hashValues' isn't defined for the class 'CameraPosition'.
 - 'CameraPosition' is from 'package:mapbox_gl_platform_interface/mapbox_gl_platform_interface.dart'
 
Error: The method 'hashValues' isn't defined for the class 'LatLngQuad'.
 - 'LatLngQuad' is from 'package:mapbox_gl_platform_interface/mapbox_gl_platform_interface.dart'
 
Error: The method 'hashValues' isn't defined for the class 'MinMaxZoomPreference'.
 - 'MinMaxZoomPreference' is from 'package:mapbox_gl_platform_interface/mapbox_gl_platform_interface.dart'

I know mapbox_gl hasn't seen a lot of activity recently, but it would be greatly appreciated if someone here is able to make mapbox_gl compile on the newest flutter version!

[felix-ht]

just looking at the error messages this seems like a minor issue. HashValues was deprecated in the most recent dart versions.

[irvine5k]

I opened up a PR fixing it #1431

[skaftanis]

Does 3.27.0 really fix ios 18.2 issues?

[Shiba-Kar]

mapbox_gl:
    git:
      url: https://github.com/irvine5k/maps.git #https://github.com/flutter-mapbox-gl/maps.git
      ref: fix-hash-values

am i missing something ?
getting the same error

[TBA-Lucas]

Same here, looking at the pubspec.lock file it seems it is still using the original mapbox_gl_platform_interface files instead of the changed ones:

  mapbox_gl:
    dependency: "direct main"
    description:
      path: "."
      ref: fix-hash-values
      resolved-ref: d5a0c9057653cb2d3bce90f56ab226432258552b
      url: "https://github.com/irvine5k/maps.git"
    source: git
    version: "0.16.0"
  mapbox_gl_platform_interface:
    dependency: transitive
    description:
      path: mapbox_gl_platform_interface
      ref: HEAD
      resolved-ref: b2bfef669e42397704b6f43d55b5df67b18c0fa8
      url: "https://github.com/tobrun/flutter-mapbox-gl.git"
    source: git
    version: "0.16.0"

(this was after deleting the .lock file and flutter clean, flutter pub cache clean)

[irvine5k]

@Shiba-Kar @TBA-Lucas, the underlining packages point to https://github.com/tobrun/flutter-mapbox-gl.git instead of my fork; I can't change it for the PR. It should be fixed once the PR is merged.

[irvine5k]

I'd recommend you to fork my branch, and change the references of the following dependencies in pubspec.yaml and mapbox_gl_web/pubspec.yaml to something like:

dependencies:
  flutter:
    sdk: flutter
  mapbox_gl_platform_interface:
    git:
      url: https://github.com/irvine5k/maps.git
      path: mapbox_gl_platform_interface
  mapbox_gl_web:
    git:
      url: https://github.com/irvine5k/maps.git
      path: mapbox_gl_platform_interface

Then you can use the fork in your project while my fix (or their fix) isn't merged.

I'm sorry for not giving clear instructions earlier.

cc @TBA-Lucas @Shiba-Kar

[shibakar]

dependencies:
     mapbox_gl:
        git:
          url: https://github.com/flutter-mapbox-gl/maps.git   
dependency_overrides:
    mapbox_gl_platform_interface:
        git:
          url: https://github.com/irvine5k/maps.git
          ref: fix-hash-values
          path: mapbox_gl_platform_interface
      mapbox_gl_web:
        git:
          url: https://github.com/irvine5k/maps.git
          ref: fix-hash-values
          path: mapbox_gl_web  

This works for me .

[TBA-Lucas]

Awesome, that works @shibakar! And thanks for the PR @irvine5k, upgrading worked, hope it gets merged soon :)

Edit: found an issue with animateCamera with the new version: #1431 (comment)

[felix-ht]

merged sorry for the wait!

[TBA-Lucas]

Thanks a lot @irvine5k and @felix-ht !