[firebase_messaging]: onMessage listener fires twice on iOS18 devices

[justChris]

Is there an existing issue for this?

• I have searched the existing issues.

Which plugins are affected?

Messaging

Which platforms are affected?

iOS

Description

Since I upgraded to xcode16.0 and iOS18 the onMessage listener fires twice every time a message is received. This only happens with the onMessage listener, means when the app is in foreground. When the app is in background or terminated, this does NOT happen. And also this only happens on physical devices with iOS18. On devices with iOS17, the listener fires once per message, as expected.
I ensured that the listener is not subscribed multiple times, but still it fires twice.

Reproducing the issue

StreamSubscription? _streamSubscriptionOnMessage;

_streamSubscriptionOnMessage ??= FirebaseMessaging.onMessage.listen((RemoteMessage message) {
  debugPrint('onMessage');
  _handleLocalNotification(message);
});

Firebase Core version

3.5.0

Flutter Version

3.24.3

Relevant Log Output

flutter doctor -v

[✓] Flutter (Channel stable, 3.24.3, on macOS 15.0 24A335 darwin-arm64, locale en-US)
    • Flutter version 3.24.3 on channel stable at /Users/chris/development/flutter
    • Upstream repository https://github.com/flutter/flutter.git
    • Framework revision 2663184aa7 (7 days ago), 2024-09-11 16:27:48 -0500
    • Engine revision 36335019a8
    • Dart version 3.5.3
    • DevTools version 2.37.3

[✓] Android toolchain - develop for Android devices (Android SDK version 34.0.0)
    • Android SDK at /Users/chris/Library/Android/sdk
    • Platform android-34, build-tools 34.0.0
    • Java binary at: /Applications/Android Studio.app/Contents/jbr/Contents/Home/bin/java
    • Java version OpenJDK Runtime Environment (build 17.0.9+0-17.0.9b1087.7-11185874)
    • All Android licenses accepted.

[✓] Xcode - develop for iOS and macOS (Xcode 16.0)
    • Xcode at /Applications/Xcode.app/Contents/Developer
    • Build 16A242d
    • CocoaPods version 1.15.2

[✓] Chrome - develop for the web
    • Chrome at /Applications/Google Chrome.app/Contents/MacOS/Google Chrome

[✓] Android Studio (version 2023.2)
    • Android Studio at /Applications/Android Studio.app/Contents
    • Flutter plugin can be installed from:
      🔨 https://plugins.jetbrains.com/plugin/9212-flutter
    • Dart plugin can be installed from:
      🔨 https://plugins.jetbrains.com/plugin/6351-dart
    • Java version OpenJDK Runtime Environment (build 17.0.9+0-17.0.9b1087.7-11185874)

[✓] VS Code (version 1.93.1)
    • VS Code at /Applications/Visual Studio Code.app/Contents
    • Flutter extension version 3.96.0

[✓] Connected device (5 available)
    • Chris’s iPhone (mobile)         • 00008130-000970383EE0001C            • ios            • iOS 18.0 22A3354
    • iPhone 16 (mobile)              • 84AB7CC3-474C-4568-8A2E-0343B2B8C598 • ios            • com.apple.CoreSimulator.SimRuntime.iOS-18-0 (simulator)
    • macOS (desktop)                 • macos                                • darwin-arm64   • macOS 15.0 24A335 darwin-arm64
    • Mac Designed for iPad (desktop) • mac-designed-for-ipad                • darwin         • macOS 15.0 24A335 darwin-arm64
    • Chrome (web)                    • chrome                               • web-javascript • Google Chrome 128.0.6613.138

[✓] Network resources
    • All expected network resources are available.

• No issues found!

Flutter dependencies

Expand Flutter dependencies snippet

Dart SDK 3.5.3
Flutter SDK 3.24.3
cirqles 0.3.74+19

dependencies:
- async 2.11.0 [collection meta]
- badges 3.1.2 [flutter]
- cached_network_image 3.4.1 [cached_network_image_platform_interface cached_network_image_web flutter flutter_cache_manager octo_image]
- cloud_firestore 5.4.2 [cloud_firestore_platform_interface cloud_firestore_web collection firebase_core firebase_core_platform_interface flutter meta]
- cloud_functions 5.1.2 [cloud_functions_platform_interface cloud_functions_web firebase_core firebase_core_platform_interface flutter]
- cupertino_icons 1.0.8
- firebase_analytics 11.3.2 [firebase_analytics_platform_interface firebase_analytics_web firebase_core firebase_core_platform_interface flutter]
- firebase_auth 5.3.0 [firebase_auth_platform_interface firebase_auth_web firebase_core firebase_core_platform_interface flutter meta]
- firebase_core 3.5.0 [firebase_core_platform_interface firebase_core_web flutter meta]
- firebase_crashlytics 4.1.2 [firebase_core firebase_core_platform_interface firebase_crashlytics_platform_interface flutter stack_trace]
- firebase_database 11.1.3 [firebase_core firebase_core_platform_interface firebase_database_platform_interface firebase_database_web flutter]
- firebase_messaging 15.1.2 [firebase_core firebase_core_platform_interface firebase_messaging_platform_interface firebase_messaging_web flutter meta]
- firebase_storage 12.3.1 [firebase_core firebase_core_platform_interface firebase_storage_platform_interface firebase_storage_web flutter]
- flutter 0.0.0 [characters collection material_color_utilities meta vector_math sky_engine]
- flutter_app_badge_control 0.0.1 [flutter plugin_platform_interface]
- flutter_cache_manager 3.4.1 [clock collection file flutter http path path_provider rxdart sqflite uuid]
- flutter_linkify 6.0.0 [flutter linkify]
- flutter_local_notifications 17.2.2 [clock flutter flutter_local_notifications_linux flutter_local_notifications_platform_interface timezone]
- flutter_map 7.0.2 [async collection dart_earcut flutter http latlong2 logger meta polylabel proj4dart vector_math]
- flutter_native_splash 2.4.1 [args flutter flutter_web_plugins html image meta path universal_io xml yaml ansicolor]
- font_awesome_flutter 10.7.0 [flutter]
- geocoding 3.0.0 [flutter geocoding_platform_interface geocoding_android geocoding_ios]
- geolocator 13.0.1 [flutter geolocator_platform_interface geolocator_android geolocator_apple geolocator_web geolocator_windows]
- hive 2.2.3 [meta crypto]
- hive_flutter 1.1.0 [flutter hive path_provider path]
- html 0.15.4 [csslib source_span]
- http 1.2.2 [async http_parser meta web]
- image 4.2.0 [archive meta xml]
- image_cropper 8.0.2 [flutter image_cropper_platform_interface image_cropper_for_web]
- image_picker 1.1.2 [flutter image_picker_android image_picker_for_web image_picker_ios image_picker_linux image_picker_macos image_picker_platform_interface image_picker_windows]
- intl 0.19.0 [clock meta path]
- latlong2 0.9.1 [intl]
- provider 6.1.2 [collection flutter nested]
- rxdart 0.28.0
- shimmer 3.0.0 [flutter]
- smooth_page_indicator 1.2.0+3 [flutter]
- timeago 3.7.0 [intl]
- transparent_image 2.0.1
- url_launcher 6.3.0 [flutter url_launcher_android url_launcher_ios url_launcher_linux url_launcher_macos url_launcher_platform_interface url_launcher_web url_launcher_windows]
- uuid 4.5.0 [crypto sprintf meta fixnum]

dev dependencies:
- build_runner 2.4.12 [analyzer args async build build_config build_daemon build_resolvers build_runner_core code_builder collection crypto dart_style frontend_server_client glob graphs http_multi_server io js logging meta mime package_config path pool pub_semver pubspec_parse shelf shelf_web_socket stack_trace stream_transform timing watcher web_socket_channel yaml]
- flutter_lints 4.0.0 [lints]
- flutter_test 0.0.0 [flutter test_api matcher path fake_async clock stack_trace vector_math leak_tracker_flutter_testing async boolean_selector characters collection leak_tracker leak_tracker_testing material_color_utilities meta source_span stream_channel string_scanner term_glyph vm_service]
- hive_generator 2.0.1 [build source_gen hive analyzer source_helper]

dependency overrides:
- build_runner 2.4.12 [analyzer args async build build_config build_daemon build_resolvers build_runner_core code_builder collection crypto dart_style frontend_server_client glob graphs http_multi_server io js logging meta mime package_config path pool pub_semver pubspec_parse shelf shelf_web_socket stack_trace stream_transform timing watcher web_socket_channel yaml]
- font_awesome_flutter 10.7.0 [flutter]
- hive_generator 2.0.1 [build source_gen hive analyzer source_helper]

transitive dependencies:
- _fe_analyzer_shared 72.0.0 [meta]
- _flutterfire_internals 1.3.43 [collection firebase_core firebase_core_platform_interface flutter meta]
- _macros 0.3.2
- analyzer 6.7.0 [_fe_analyzer_shared collection convert crypto glob macros meta package_config path pub_semver source_span watcher yaml]
- ansicolor 2.0.3
- archive 3.6.1 [crypto path]
- args 2.5.0
- boolean_selector 2.1.1 [source_span string_scanner]
- build 2.4.1 [analyzer async convert crypto glob logging meta package_config path]
- build_config 1.1.1 [checked_yaml json_annotation path pubspec_parse yaml]
- build_daemon 4.0.2 [built_collection built_value crypto http_multi_server logging path pool shelf shelf_web_socket stream_transform watcher web_socket_channel]
- build_resolvers 2.4.2 [analyzer async build collection convert crypto graphs logging package_config path pool pub_semver stream_transform yaml]
- build_runner_core 7.3.2 [async build build_config build_resolvers collection convert crypto glob graphs json_annotation logging meta package_config path pool timing watcher yaml]
- built_collection 5.1.1
- built_value 8.9.2 [built_collection collection fixnum meta]
- cached_network_image_platform_interface 4.1.1 [flutter flutter_cache_manager]
- cached_network_image_web 1.3.1 [cached_network_image_platform_interface flutter flutter_cache_manager web]
- characters 1.3.0
- checked_yaml 2.0.3 [json_annotation source_span yaml]
- clock 1.1.1
- cloud_firestore_platform_interface 6.4.2 [_flutterfire_internals collection firebase_core flutter meta plugin_platform_interface]
- cloud_firestore_web 4.3.1 [_flutterfire_internals cloud_firestore_platform_interface collection firebase_core firebase_core_web flutter flutter_web_plugins]
- cloud_functions_platform_interface 5.5.36 [firebase_core flutter meta plugin_platform_interface]
- cloud_functions_web 4.10.1 [cloud_functions_platform_interface firebase_core firebase_core_web flutter flutter_web_plugins]
- code_builder 4.10.0 [built_collection built_value collection matcher meta]
- collection 1.18.0
- convert 3.1.1 [typed_data]
- cross_file 0.3.4+2 [meta web]
- crypto 3.0.5 [typed_data]
- csslib 1.0.0 [source_span]
- dart_earcut 1.1.0
- dart_style 2.3.7 [analyzer args collection package_config path pub_semver source_span]
- dbus 0.7.10 [args ffi meta xml]
- fake_async 1.3.1 [clock collection]
- ffi 2.1.3
- file 7.0.0 [meta path]
- file_selector_linux 0.9.2+1 [cross_file file_selector_platform_interface flutter]
- file_selector_macos 0.9.4 [cross_file file_selector_platform_interface flutter]
- file_selector_platform_interface 2.6.2 [cross_file flutter http plugin_platform_interface]
- file_selector_windows 0.9.3+2 [cross_file file_selector_platform_interface flutter]
- firebase_analytics_platform_interface 4.2.4 [_flutterfire_internals firebase_core flutter meta plugin_platform_interface]
- firebase_analytics_web 0.5.10+1 [_flutterfire_internals firebase_analytics_platform_interface firebase_core firebase_core_web flutter flutter_web_plugins]
- firebase_auth_platform_interface 7.4.6 [_flutterfire_internals collection firebase_core flutter meta plugin_platform_interface]
- firebase_auth_web 5.13.1 [firebase_auth_platform_interface firebase_core firebase_core_web flutter flutter_web_plugins http_parser meta web]
- firebase_core_platform_interface 5.3.0 [collection flutter flutter_test meta plugin_platform_interface]
- firebase_core_web 2.18.1 [firebase_core_platform_interface flutter flutter_web_plugins meta web]
- firebase_crashlytics_platform_interface 3.6.43 [_flutterfire_internals collection firebase_core flutter meta plugin_platform_interface]
- firebase_database_platform_interface 0.2.5+43 [_flutterfire_internals collection firebase_core flutter meta plugin_platform_interface]
- firebase_database_web 0.2.6+1 [collection firebase_core firebase_core_web firebase_database_platform_interface flutter flutter_web_plugins]
- firebase_messaging_platform_interface 4.5.45 [_flutterfire_internals firebase_core flutter meta plugin_platform_interface]
- firebase_messaging_web 3.9.1 [_flutterfire_internals firebase_core firebase_core_web firebase_messaging_platform_interface flutter flutter_web_plugins meta web]
- firebase_storage_platform_interface 5.1.30 [_flutterfire_internals collection firebase_core flutter meta plugin_platform_interface]
- firebase_storage_web 3.10.1 [_flutterfire_internals async firebase_core firebase_core_web firebase_storage_platform_interface flutter flutter_web_plugins http meta web]
- fixnum 1.1.0
- flutter_local_notifications_linux 4.0.1 [dbus ffi flutter flutter_local_notifications_platform_interface path xdg_directories]
- flutter_local_notifications_platform_interface 7.2.0 [flutter plugin_platform_interface]
- flutter_plugin_android_lifecycle 2.0.22 [flutter]
- flutter_web_plugins 0.0.0 [flutter characters collection material_color_utilities meta vector_math]
- frontend_server_client 4.0.0 [async path]
- geocoding_android 3.3.1 [flutter geocoding_platform_interface]
- geocoding_ios 3.0.1 [flutter geocoding_platform_interface]
- geocoding_platform_interface 3.2.0 [flutter meta plugin_platform_interface]
- geolocator_android 4.6.1 [flutter geolocator_platform_interface meta uuid]
- geolocator_apple 2.3.7 [flutter geolocator_platform_interface]
- geolocator_platform_interface 4.2.4 [flutter plugin_platform_interface vector_math meta]
- geolocator_web 4.1.1 [flutter flutter_web_plugins geolocator_platform_interface web]
- geolocator_windows 0.2.3 [flutter geolocator_platform_interface]
- glob 2.1.2 [async collection file path string_scanner]
- graphs 2.3.2 [collection]
- http_multi_server 3.2.1 [async]
- http_parser 4.0.2 [collection source_span string_scanner typed_data]
- image_cropper_for_web 6.0.2 [flutter flutter_web_plugins image_cropper_platform_interface web]
- image_cropper_platform_interface 7.0.0 [flutter plugin_platform_interface http]
- image_picker_android 0.8.12+13 [flutter flutter_plugin_android_lifecycle image_picker_platform_interface]
- image_picker_for_web 3.0.5 [flutter flutter_web_plugins image_picker_platform_interface mime web]
- image_picker_ios 0.8.12 [flutter image_picker_platform_interface]
- image_picker_linux 0.2.1+1 [file_selector_linux file_selector_platform_interface flutter image_picker_platform_interface]
- image_picker_macos 0.2.1+1 [file_selector_macos file_selector_platform_interface flutter image_picker_platform_interface]
- image_picker_platform_interface 2.10.0 [cross_file flutter http plugin_platform_interface]
- image_picker_windows 0.2.1+1 [file_selector_platform_interface file_selector_windows flutter image_picker_platform_interface]
- io 1.0.4 [meta path string_scanner]
- js 0.7.1
- json_annotation 4.9.0 [meta]
- leak_tracker 10.0.5 [clock collection meta path vm_service]
- leak_tracker_flutter_testing 3.0.5 [flutter leak_tracker leak_tracker_testing matcher meta]
- leak_tracker_testing 3.0.1 [leak_tracker matcher meta]
- linkify 5.0.0
- lints 4.0.0
- lists 1.0.1 [meta]
- logger 2.4.0
- logging 1.2.0
- macros 0.1.2-main.4 [_macros]
- matcher 0.12.16+1 [async meta stack_trace term_glyph test_api]
- material_color_utilities 0.11.1 [collection]
- meta 1.15.0
- mgrs_dart 2.0.0 [unicode]
- mime 1.0.6
- nested 1.0.0 [flutter]
- octo_image 2.1.0 [flutter]
- package_config 2.1.0 [path]
- path 1.9.0
- path_provider 2.1.4 [flutter path_provider_android path_provider_foundation path_provider_linux path_provider_platform_interface path_provider_windows]
- path_provider_android 2.2.10 [flutter path_provider_platform_interface]
- path_provider_foundation 2.4.0 [flutter path_provider_platform_interface]
- path_provider_linux 2.2.1 [ffi flutter path path_provider_platform_interface xdg_directories]
- path_provider_platform_interface 2.1.2 [flutter platform plugin_platform_interface]
- path_provider_windows 2.3.0 [ffi flutter path path_provider_platform_interface]
- petitparser 6.0.2 [meta]
- platform 3.1.5
- plugin_platform_interface 2.1.8 [meta]
- polylabel 1.0.1 [collection]
- pool 1.5.1 [async stack_trace]
- proj4dart 2.1.0 [mgrs_dart wkt_parser meta]
- pub_semver 2.1.4 [collection meta]
- pubspec_parse 1.3.0 [checked_yaml collection json_annotation pub_semver yaml]
- shelf 1.4.1 [async collection http_parser path stack_trace stream_channel]
- shelf_web_socket 2.0.0 [shelf stream_channel web_socket_channel]
- sky_engine 0.0.99
- source_gen 1.5.0 [analyzer async build dart_style glob path source_span yaml]
- source_helper 1.3.4 [analyzer collection source_gen]
- source_span 1.10.0 [collection path term_glyph]
- sprintf 7.0.0
- sqflite 2.3.3+1 [flutter sqflite_common path]
- sqflite_common 2.5.4+3 [synchronized path meta]
- stack_trace 1.11.1 [path]
- stream_channel 2.1.2 [async]
- stream_transform 2.1.0
- string_scanner 1.2.0 [source_span]
- synchronized 3.3.0+2
- term_glyph 1.2.1
- test_api 0.7.2 [async boolean_selector collection meta source_span stack_trace stream_channel string_scanner term_glyph]
- timezone 0.9.4 [path]
- timing 1.0.1 [json_annotation]
- typed_data 1.3.2 [collection]
- unicode 0.3.1 [lists]
- universal_io 2.2.2 [collection meta typed_data]
- url_launcher_android 6.3.10 [flutter url_launcher_platform_interface]
- url_launcher_ios 6.3.1 [flutter url_launcher_platform_interface]
- url_launcher_linux 3.2.0 [flutter url_launcher_platform_interface]
- url_launcher_macos 3.2.0 [flutter url_launcher_platform_interface]
- url_launcher_platform_interface 2.3.2 [flutter plugin_platform_interface]
- url_launcher_web 2.3.3 [flutter flutter_web_plugins url_launcher_platform_interface web]
- url_launcher_windows 3.1.2 [flutter url_launcher_platform_interface]
- vector_math 2.1.4
- vm_service 14.2.5
- watcher 1.1.0 [async path]
- web 1.0.0
- web_socket 0.1.6 [web]
- web_socket_channel 3.0.1 [async crypto stream_channel web web_socket]
- wkt_parser 2.0.0
- xdg_directories 1.0.4 [meta path]
- xml 6.5.0 [collection meta petitparser]
- yaml 3.1.2 [collection source_span string_scanner]

Additional context and comments

No response

[hohoins]

I'm having the same problem.
onMessage is triggered twice in iOS18.
This seems to be a critical issue.
Please check quickly.
For reference, there was no problem in iOS17.

[Environment]
flutter: 3.13.9
os: ios18
firebase_messaging: ^14.7.10
firebase_core: ^2.24.2
firebase_analytics: ^10.8.0
firebase_crashlytics: ^3.4.9
firebase_remote_config: ^4.3.8

[soumyajitdas365]

Is there an existing issue for this?

• I have searched the existing issues.

Which plugins are affected?

Messaging

Which platforms are affected?

iOS

Description

Since I upgraded to xcode16.0 and iOS18 the onMessage listener fires twice every time a message is received. This only happens with the onMessage listener, means when the app is in foreground. When the app is in background or terminated, this does NOT happen. And also this only happens on physical devices with iOS18. On devices with iOS17, the listener fires once per message, as expected.
I ensured that the listener is not subscribed multiple times, but still it fires twice.

Reproducing the issue

StreamSubscription? _streamSubscriptionOnMessage;

_streamSubscriptionOnMessage ??= FirebaseMessaging.onMessage.listen((RemoteMessage message) {
  debugPrint('onMessage');
  _handleLocalNotification(message);
});

Firebase Core version

3.5.0

Flutter Version

3.24.3

Relevant Log Output

flutter doctor -v

[✓] Flutter (Channel stable, 3.24.3, on macOS 15.0 24A335 darwin-arm64, locale en-US)
    • Flutter version 3.24.3 on channel stable at /Users/chris/development/flutter
    • Upstream repository https://github.com/flutter/flutter.git
    • Framework revision 2663184aa7 (7 days ago), 2024-09-11 16:27:48 -0500
    • Engine revision 36335019a8
    • Dart version 3.5.3
    • DevTools version 2.37.3

[✓] Android toolchain - develop for Android devices (Android SDK version 34.0.0)
    • Android SDK at /Users/chris/Library/Android/sdk
    • Platform android-34, build-tools 34.0.0
    • Java binary at: /Applications/Android Studio.app/Contents/jbr/Contents/Home/bin/java
    • Java version OpenJDK Runtime Environment (build 17.0.9+0-17.0.9b1087.7-11185874)
    • All Android licenses accepted.

[✓] Xcode - develop for iOS and macOS (Xcode 16.0)
    • Xcode at /Applications/Xcode.app/Contents/Developer
    • Build 16A242d
    • CocoaPods version 1.15.2

[✓] Chrome - develop for the web
    • Chrome at /Applications/Google Chrome.app/Contents/MacOS/Google Chrome

[✓] Android Studio (version 2023.2)
    • Android Studio at /Applications/Android Studio.app/Contents
    • Flutter plugin can be installed from:
      🔨 https://plugins.jetbrains.com/plugin/9212-flutter
    • Dart plugin can be installed from:
      🔨 https://plugins.jetbrains.com/plugin/6351-dart
    • Java version OpenJDK Runtime Environment (build 17.0.9+0-17.0.9b1087.7-11185874)

[✓] VS Code (version 1.93.1)
    • VS Code at /Applications/Visual Studio Code.app/Contents
    • Flutter extension version 3.96.0

[✓] Connected device (5 available)
    • Chris’s iPhone (mobile)         • 00008130-000970383EE0001C            • ios            • iOS 18.0 22A3354
    • iPhone 16 (mobile)              • 84AB7CC3-474C-4568-8A2E-0343B2B8C598 • ios            • com.apple.CoreSimulator.SimRuntime.iOS-18-0 (simulator)
    • macOS (desktop)                 • macos                                • darwin-arm64   • macOS 15.0 24A335 darwin-arm64
    • Mac Designed for iPad (desktop) • mac-designed-for-ipad                • darwin         • macOS 15.0 24A335 darwin-arm64
    • Chrome (web)                    • chrome                               • web-javascript • Google Chrome 128.0.6613.138

[✓] Network resources
    • All expected network resources are available.

• No issues found!

Flutter dependencies

Expand Flutter dependencies snippet

Dart SDK 3.5.3
Flutter SDK 3.24.3
cirqles 0.3.74+19

dependencies:
- async 2.11.0 [collection meta]
- badges 3.1.2 [flutter]
- cached_network_image 3.4.1 [cached_network_image_platform_interface cached_network_image_web flutter flutter_cache_manager octo_image]
- cloud_firestore 5.4.2 [cloud_firestore_platform_interface cloud_firestore_web collection firebase_core firebase_core_platform_interface flutter meta]
- cloud_functions 5.1.2 [cloud_functions_platform_interface cloud_functions_web firebase_core firebase_core_platform_interface flutter]
- cupertino_icons 1.0.8
- firebase_analytics 11.3.2 [firebase_analytics_platform_interface firebase_analytics_web firebase_core firebase_core_platform_interface flutter]
- firebase_auth 5.3.0 [firebase_auth_platform_interface firebase_auth_web firebase_core firebase_core_platform_interface flutter meta]
- firebase_core 3.5.0 [firebase_core_platform_interface firebase_core_web flutter meta]
- firebase_crashlytics 4.1.2 [firebase_core firebase_core_platform_interface firebase_crashlytics_platform_interface flutter stack_trace]
- firebase_database 11.1.3 [firebase_core firebase_core_platform_interface firebase_database_platform_interface firebase_database_web flutter]
- firebase_messaging 15.1.2 [firebase_core firebase_core_platform_interface firebase_messaging_platform_interface firebase_messaging_web flutter meta]
- firebase_storage 12.3.1 [firebase_core firebase_core_platform_interface firebase_storage_platform_interface firebase_storage_web flutter]
- flutter 0.0.0 [characters collection material_color_utilities meta vector_math sky_engine]
- flutter_app_badge_control 0.0.1 [flutter plugin_platform_interface]
- flutter_cache_manager 3.4.1 [clock collection file flutter http path path_provider rxdart sqflite uuid]
- flutter_linkify 6.0.0 [flutter linkify]
- flutter_local_notifications 17.2.2 [clock flutter flutter_local_notifications_linux flutter_local_notifications_platform_interface timezone]
- flutter_map 7.0.2 [async collection dart_earcut flutter http latlong2 logger meta polylabel proj4dart vector_math]
- flutter_native_splash 2.4.1 [args flutter flutter_web_plugins html image meta path universal_io xml yaml ansicolor]
- font_awesome_flutter 10.7.0 [flutter]
- geocoding 3.0.0 [flutter geocoding_platform_interface geocoding_android geocoding_ios]
- geolocator 13.0.1 [flutter geolocator_platform_interface geolocator_android geolocator_apple geolocator_web geolocator_windows]
- hive 2.2.3 [meta crypto]
- hive_flutter 1.1.0 [flutter hive path_provider path]
- html 0.15.4 [csslib source_span]
- http 1.2.2 [async http_parser meta web]
- image 4.2.0 [archive meta xml]
- image_cropper 8.0.2 [flutter image_cropper_platform_interface image_cropper_for_web]
- image_picker 1.1.2 [flutter image_picker_android image_picker_for_web image_picker_ios image_picker_linux image_picker_macos image_picker_platform_interface image_picker_windows]
- intl 0.19.0 [clock meta path]
- latlong2 0.9.1 [intl]
- provider 6.1.2 [collection flutter nested]
- rxdart 0.28.0
- shimmer 3.0.0 [flutter]
- smooth_page_indicator 1.2.0+3 [flutter]
- timeago 3.7.0 [intl]
- transparent_image 2.0.1
- url_launcher 6.3.0 [flutter url_launcher_android url_launcher_ios url_launcher_linux url_launcher_macos url_launcher_platform_interface url_launcher_web url_launcher_windows]
- uuid 4.5.0 [crypto sprintf meta fixnum]

dev dependencies:
- build_runner 2.4.12 [analyzer args async build build_config build_daemon build_resolvers build_runner_core code_builder collection crypto dart_style frontend_server_client glob graphs http_multi_server io js logging meta mime package_config path pool pub_semver pubspec_parse shelf shelf_web_socket stack_trace stream_transform timing watcher web_socket_channel yaml]
- flutter_lints 4.0.0 [lints]
- flutter_test 0.0.0 [flutter test_api matcher path fake_async clock stack_trace vector_math leak_tracker_flutter_testing async boolean_selector characters collection leak_tracker leak_tracker_testing material_color_utilities meta source_span stream_channel string_scanner term_glyph vm_service]
- hive_generator 2.0.1 [build source_gen hive analyzer source_helper]

dependency overrides:
- build_runner 2.4.12 [analyzer args async build build_config build_daemon build_resolvers build_runner_core code_builder collection crypto dart_style frontend_server_client glob graphs http_multi_server io js logging meta mime package_config path pool pub_semver pubspec_parse shelf shelf_web_socket stack_trace stream_transform timing watcher web_socket_channel yaml]
- font_awesome_flutter 10.7.0 [flutter]
- hive_generator 2.0.1 [build source_gen hive analyzer source_helper]

transitive dependencies:
- _fe_analyzer_shared 72.0.0 [meta]
- _flutterfire_internals 1.3.43 [collection firebase_core firebase_core_platform_interface flutter meta]
- _macros 0.3.2
- analyzer 6.7.0 [_fe_analyzer_shared collection convert crypto glob macros meta package_config path pub_semver source_span watcher yaml]
- ansicolor 2.0.3
- archive 3.6.1 [crypto path]
- args 2.5.0
- boolean_selector 2.1.1 [source_span string_scanner]
- build 2.4.1 [analyzer async convert crypto glob logging meta package_config path]
- build_config 1.1.1 [checked_yaml json_annotation path pubspec_parse yaml]
- build_daemon 4.0.2 [built_collection built_value crypto http_multi_server logging path pool shelf shelf_web_socket stream_transform watcher web_socket_channel]
- build_resolvers 2.4.2 [analyzer async build collection convert crypto graphs logging package_config path pool pub_semver stream_transform yaml]
- build_runner_core 7.3.2 [async build build_config build_resolvers collection convert crypto glob graphs json_annotation logging meta package_config path pool timing watcher yaml]
- built_collection 5.1.1
- built_value 8.9.2 [built_collection collection fixnum meta]
- cached_network_image_platform_interface 4.1.1 [flutter flutter_cache_manager]
- cached_network_image_web 1.3.1 [cached_network_image_platform_interface flutter flutter_cache_manager web]
- characters 1.3.0
- checked_yaml 2.0.3 [json_annotation source_span yaml]
- clock 1.1.1
- cloud_firestore_platform_interface 6.4.2 [_flutterfire_internals collection firebase_core flutter meta plugin_platform_interface]
- cloud_firestore_web 4.3.1 [_flutterfire_internals cloud_firestore_platform_interface collection firebase_core firebase_core_web flutter flutter_web_plugins]
- cloud_functions_platform_interface 5.5.36 [firebase_core flutter meta plugin_platform_interface]
- cloud_functions_web 4.10.1 [cloud_functions_platform_interface firebase_core firebase_core_web flutter flutter_web_plugins]
- code_builder 4.10.0 [built_collection built_value collection matcher meta]
- collection 1.18.0
- convert 3.1.1 [typed_data]
- cross_file 0.3.4+2 [meta web]
- crypto 3.0.5 [typed_data]
- csslib 1.0.0 [source_span]
- dart_earcut 1.1.0
- dart_style 2.3.7 [analyzer args collection package_config path pub_semver source_span]
- dbus 0.7.10 [args ffi meta xml]
- fake_async 1.3.1 [clock collection]
- ffi 2.1.3
- file 7.0.0 [meta path]
- file_selector_linux 0.9.2+1 [cross_file file_selector_platform_interface flutter]
- file_selector_macos 0.9.4 [cross_file file_selector_platform_interface flutter]
- file_selector_platform_interface 2.6.2 [cross_file flutter http plugin_platform_interface]
- file_selector_windows 0.9.3+2 [cross_file file_selector_platform_interface flutter]
- firebase_analytics_platform_interface 4.2.4 [_flutterfire_internals firebase_core flutter meta plugin_platform_interface]
- firebase_analytics_web 0.5.10+1 [_flutterfire_internals firebase_analytics_platform_interface firebase_core firebase_core_web flutter flutter_web_plugins]
- firebase_auth_platform_interface 7.4.6 [_flutterfire_internals collection firebase_core flutter meta plugin_platform_interface]
- firebase_auth_web 5.13.1 [firebase_auth_platform_interface firebase_core firebase_core_web flutter flutter_web_plugins http_parser meta web]
- firebase_core_platform_interface 5.3.0 [collection flutter flutter_test meta plugin_platform_interface]
- firebase_core_web 2.18.1 [firebase_core_platform_interface flutter flutter_web_plugins meta web]
- firebase_crashlytics_platform_interface 3.6.43 [_flutterfire_internals collection firebase_core flutter meta plugin_platform_interface]
- firebase_database_platform_interface 0.2.5+43 [_flutterfire_internals collection firebase_core flutter meta plugin_platform_interface]
- firebase_database_web 0.2.6+1 [collection firebase_core firebase_core_web firebase_database_platform_interface flutter flutter_web_plugins]
- firebase_messaging_platform_interface 4.5.45 [_flutterfire_internals firebase_core flutter meta plugin_platform_interface]
- firebase_messaging_web 3.9.1 [_flutterfire_internals firebase_core firebase_core_web firebase_messaging_platform_interface flutter flutter_web_plugins meta web]
- firebase_storage_platform_interface 5.1.30 [_flutterfire_internals collection firebase_core flutter meta plugin_platform_interface]
- firebase_storage_web 3.10.1 [_flutterfire_internals async firebase_core firebase_core_web firebase_storage_platform_interface flutter flutter_web_plugins http meta web]
- fixnum 1.1.0
- flutter_local_notifications_linux 4.0.1 [dbus ffi flutter flutter_local_notifications_platform_interface path xdg_directories]
- flutter_local_notifications_platform_interface 7.2.0 [flutter plugin_platform_interface]
- flutter_plugin_android_lifecycle 2.0.22 [flutter]
- flutter_web_plugins 0.0.0 [flutter characters collection material_color_utilities meta vector_math]
- frontend_server_client 4.0.0 [async path]
- geocoding_android 3.3.1 [flutter geocoding_platform_interface]
- geocoding_ios 3.0.1 [flutter geocoding_platform_interface]
- geocoding_platform_interface 3.2.0 [flutter meta plugin_platform_interface]
- geolocator_android 4.6.1 [flutter geolocator_platform_interface meta uuid]
- geolocator_apple 2.3.7 [flutter geolocator_platform_interface]
- geolocator_platform_interface 4.2.4 [flutter plugin_platform_interface vector_math meta]
- geolocator_web 4.1.1 [flutter flutter_web_plugins geolocator_platform_interface web]
- geolocator_windows 0.2.3 [flutter geolocator_platform_interface]
- glob 2.1.2 [async collection file path string_scanner]
- graphs 2.3.2 [collection]
- http_multi_server 3.2.1 [async]
- http_parser 4.0.2 [collection source_span string_scanner typed_data]
- image_cropper_for_web 6.0.2 [flutter flutter_web_plugins image_cropper_platform_interface web]
- image_cropper_platform_interface 7.0.0 [flutter plugin_platform_interface http]
- image_picker_android 0.8.12+13 [flutter flutter_plugin_android_lifecycle image_picker_platform_interface]
- image_picker_for_web 3.0.5 [flutter flutter_web_plugins image_picker_platform_interface mime web]
- image_picker_ios 0.8.12 [flutter image_picker_platform_interface]
- image_picker_linux 0.2.1+1 [file_selector_linux file_selector_platform_interface flutter image_picker_platform_interface]
- image_picker_macos 0.2.1+1 [file_selector_macos file_selector_platform_interface flutter image_picker_platform_interface]
- image_picker_platform_interface 2.10.0 [cross_file flutter http plugin_platform_interface]
- image_picker_windows 0.2.1+1 [file_selector_platform_interface file_selector_windows flutter image_picker_platform_interface]
- io 1.0.4 [meta path string_scanner]
- js 0.7.1
- json_annotation 4.9.0 [meta]
- leak_tracker 10.0.5 [clock collection meta path vm_service]
- leak_tracker_flutter_testing 3.0.5 [flutter leak_tracker leak_tracker_testing matcher meta]
- leak_tracker_testing 3.0.1 [leak_tracker matcher meta]
- linkify 5.0.0
- lints 4.0.0
- lists 1.0.1 [meta]
- logger 2.4.0
- logging 1.2.0
- macros 0.1.2-main.4 [_macros]
- matcher 0.12.16+1 [async meta stack_trace term_glyph test_api]
- material_color_utilities 0.11.1 [collection]
- meta 1.15.0
- mgrs_dart 2.0.0 [unicode]
- mime 1.0.6
- nested 1.0.0 [flutter]
- octo_image 2.1.0 [flutter]
- package_config 2.1.0 [path]
- path 1.9.0
- path_provider 2.1.4 [flutter path_provider_android path_provider_foundation path_provider_linux path_provider_platform_interface path_provider_windows]
- path_provider_android 2.2.10 [flutter path_provider_platform_interface]
- path_provider_foundation 2.4.0 [flutter path_provider_platform_interface]
- path_provider_linux 2.2.1 [ffi flutter path path_provider_platform_interface xdg_directories]
- path_provider_platform_interface 2.1.2 [flutter platform plugin_platform_interface]
- path_provider_windows 2.3.0 [ffi flutter path path_provider_platform_interface]
- petitparser 6.0.2 [meta]
- platform 3.1.5
- plugin_platform_interface 2.1.8 [meta]
- polylabel 1.0.1 [collection]
- pool 1.5.1 [async stack_trace]
- proj4dart 2.1.0 [mgrs_dart wkt_parser meta]
- pub_semver 2.1.4 [collection meta]
- pubspec_parse 1.3.0 [checked_yaml collection json_annotation pub_semver yaml]
- shelf 1.4.1 [async collection http_parser path stack_trace stream_channel]
- shelf_web_socket 2.0.0 [shelf stream_channel web_socket_channel]
- sky_engine 0.0.99
- source_gen 1.5.0 [analyzer async build dart_style glob path source_span yaml]
- source_helper 1.3.4 [analyzer collection source_gen]
- source_span 1.10.0 [collection path term_glyph]
- sprintf 7.0.0
- sqflite 2.3.3+1 [flutter sqflite_common path]
- sqflite_common 2.5.4+3 [synchronized path meta]
- stack_trace 1.11.1 [path]
- stream_channel 2.1.2 [async]
- stream_transform 2.1.0
- string_scanner 1.2.0 [source_span]
- synchronized 3.3.0+2
- term_glyph 1.2.1
- test_api 0.7.2 [async boolean_selector collection meta source_span stack_trace stream_channel string_scanner term_glyph]
- timezone 0.9.4 [path]
- timing 1.0.1 [json_annotation]
- typed_data 1.3.2 [collection]
- unicode 0.3.1 [lists]
- universal_io 2.2.2 [collection meta typed_data]
- url_launcher_android 6.3.10 [flutter url_launcher_platform_interface]
- url_launcher_ios 6.3.1 [flutter url_launcher_platform_interface]
- url_launcher_linux 3.2.0 [flutter url_launcher_platform_interface]
- url_launcher_macos 3.2.0 [flutter url_launcher_platform_interface]
- url_launcher_platform_interface 2.3.2 [flutter plugin_platform_interface]
- url_launcher_web 2.3.3 [flutter flutter_web_plugins url_launcher_platform_interface web]
- url_launcher_windows 3.1.2 [flutter url_launcher_platform_interface]
- vector_math 2.1.4
- vm_service 14.2.5
- watcher 1.1.0 [async path]
- web 1.0.0
- web_socket 0.1.6 [web]
- web_socket_channel 3.0.1 [async crypto stream_channel web web_socket]
- wkt_parser 2.0.0
- xdg_directories 1.0.4 [meta path]
- xml 6.5.0 [collection meta petitparser]
- yaml 3.1.2 [collection source_span string_scanner]

Additional context and comments

No response

Hello,

Is it working fine in the android application? Can you tell me?

[justChris]

On Android it is working as expected. @soumyajitdas365

[hohoins]

@soumyajitdas365
I think it might be a problem with the firebase_messaging package.
When onMessage is received twice, the RemoteMessage.messageId of the 2 messages is the same.
The messageId should be a unique value. But isn't it a bug that the same messageId value occurs twice?

[soumyajitdas365]

On Android it is working as expected.
@justChris

Can you help by providing the code for Android?
Because I'm struggling with Android and for iOS I'm facing the same issue as yours

[Tom3652]

I have faced the same issue today after upgrading to iOS 18.
I am saving a local list of the RemoteMessage.messageId as @hohoins mentionned to avoid running the code twice for now as a workaround, since it's indeed the same RemoteMessage.messageId that is thrown.

[justChris]

On Android it is working as expected.
@justChris

Can you help by providing the code for Android?
Because I'm struggling with Android and for iOS I'm facing the same issue as yours

@soumyajitdas365

Please refer to the official documentation https://firebase.google.com/docs/flutter/setup?platform=android

[justChris]

I have faced the same issue today after upgrading to iOS 18.

I am saving a local list of the RemoteMessage.messageId as @hohoins mentionned to avoid running the code twice for now as a workaround, since it's indeed the same RemoteMessage.messageId that is thrown.

@Tom3652

Thanks for the insight. I will test that myself.
In the function logs I can see that the message is only sent once. But the listener gets fired twice. So I strongly assume that the issue is in the local library.

[Tom3652]

Yes indeed in my function log i also see that the notification is sent once and i have tried to sent it from my local machine using the firebase admin sdk, it doesn't send 2 notifications server-side.

Besides, the client listener is only fired once on my android device using and on my iOS 17.5.1 device it fires only once the client listener 🙏🏻

[nukeolay]

Same problem here. I upgraded to Xcode 16.0 and iOS18 and now the onMessage listener fires twice every time a message is received.
firebase_core - 3.5.0, firebase_messaging: ^15.1.2, Flutter Version - 3.24.3
Android works fine

[xBLACKICEx]

Same problem, I would like to know which version is available for the current situation?

[Alabfa]

Same problem here, I wish I found this earlier because I was struggling for 13 hours thinking the problem in my code.

[justChris]

Since this is only happening when the app is in foreground, it would be better to save the message ids to an array at runtime. This way you can check whether the corresponding message id is already existing in the array and thus already been processed. Then you can just ignore any further messages with the same id.

[SelaseKay]

Hi @justChris , thanks for submitting this issue. I'm going to upgrade my iOS to version 18 since it's prerequisite to reproduce this issue. I'd provide feedback on my findings.

[linsendidi]

Also facing the same issue. Did some tests from my side.

Flutter version:
3.22.3

Firebase dependencies:

firebase_core: 3.3.0
firebase_messaging: 15.0.4

Devices Tested:

iOS 18.0 (iPhone 15 Pro): Messaging received twice when app is in the foreground.
iOS 17.7 (iPhone 12 Pro): Works as expected.
Android 13 (Pixel 4 XL): Works as expected.
Android 14 (Galaxy S23 Ultra): Works as expected.

[SelaseKay]

Hi @justChris , I'm able to reproduce this issue on iOS 18.

[SerdarNur]

Hi guys, we have the same issue. We are receiving on iOS 18 devices events onMessage twice. On iOS 17 device with the same code base it is only fired once. Very critical bug.

[nukeolay]

I have faced the same issue today after upgrading to iOS 18.
I am saving a local list of the RemoteMessage.messageId as @hohoins mentionned to avoid running the code twice for now as a workaround, since it's indeed the same RemoteMessage.messageId that is thrown.

Yes, I think it's the best way to deal with the bug until we get a fixed version of Firebase lib.
In our project we use this code:

final _recievedMessages = <String>[];

void _onMessageHandler(RemoteMessage message) {
final messageId = message.messageId;
  if (_recievedMessages.contains(messageId)) {
    return;
  }
  if (messageId != null) {
    _recievedMessages.add(messageId);
  }

  // your message handle logic here
}

StreamSubscription? _onMessageSubscription;

_onMessageSubscription ??= FirebaseMessaging.onMessage.listen(_onMessageHandler);