🐛 [dynamic_links] getInitialLink() is always returning null (on Android)

[martijnvanderlaan]

Bug report

getInitialLink() is always returning null (on Android). I have spends hours already searching for it, read multiple posts about this issue and tried all things I could find, but it always stays null.

I tried:

• Using a delay of 2 seconds
• Listen to onLink to see if that's working
• Trying it in different places in the app
• Trying it in debug and release mode

I unfortunately never got it working. It is currently implemented this way:

  // first wait 2 seconds, then retrieve dynamic link
  @override
  void didChangeAppLifecycleState(AppLifecycleState state) {
    if (state == AppLifecycleState.resumed) {
      _timerLink = Timer(
        const Duration(milliseconds: 2000),
        () {
          Provider.of<EventBloc>(context, listen: false)
              .retrieveDynamicLink(context);
        },
      );
    }
  }

  Future<void> retrieveDynamicLink(BuildContext context) async {
    final PendingDynamicLinkData? data =
        await FirebaseDynamicLinks.instance.getInitialLink();

    if (data != null) {
      Uri? deepLink = data.link;
      print(deepLink.path);
    }
  }

Steps to reproduce

Steps to reproduce the behavior:

1. Implement above logic
2. Generate dynamic link
3. Click on dynamic link, app opens
4. Data is always null

Expected behavior

3. Data contains data :)

Additional context

I have not tested it on iOS.

Flutter doctor

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``` Doctor summary (to see all details, run flutter doctor -v): [✓] Flutter (Channel stable, 2.10.2, on macOS 12.2.1 21D62 darwin-x64, locale nl-NL) [✓] Android toolchain - develop for Android devices (Android SDK version 30.0.2) [✓] Xcode - develop for iOS and macOS (Xcode 13.2.1) [✓] Chrome - develop for the web [✓] Android Studio (version 4.1) [✓] VS Code (version 1.65.1) [✓] Connected device (2 available) [✓] HTTP Host Availability • No issues found! ```

Flutter dependencies

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``` Dart SDK 2.16.1 Flutter SDK 2.10.2 vibed_app 1.0.0+21 dependencies: - animated_icon_button 1.0.2 [flutter freezed_annotation] - cached_network_image 3.2.0 [flutter flutter_cache_manager octo_image cached_network_image_platform_interface cached_network_image_web] - cloud_firestore 3.1.10 [cloud_firestore_platform_interface cloud_firestore_web collection firebase_core firebase_core_platform_interface flutter meta] - cupertino_icons 1.0.4 - device_calendar 4.2.0 [flutter collection sprintf timezone flutter_native_timezone] - device_info 2.0.3 [flutter device_info_platform_interface] - dots_indicator 2.1.0 [flutter] - firebase_analytics 9.1.2 [firebase_analytics_platform_interface firebase_analytics_web firebase_core firebase_core_platform_interface flutter] - firebase_auth 3.3.10 [firebase_auth_platform_interface firebase_auth_web firebase_core firebase_core_platform_interface flutter meta] - firebase_core 1.13.1 [firebase_core_platform_interface firebase_core_web flutter meta] - firebase_dynamic_links 4.0.0 [firebase_core firebase_core_platform_interface firebase_dynamic_links_platform_interface flutter meta plugin_platform_interface] - firebase_storage 10.2.9 [firebase_core firebase_core_platform_interface firebase_storage_platform_interface firebase_storage_web flutter] - flutter 0.0.0 [characters collection material_color_utilities meta typed_data vector_math sky_engine] - flutter_calendar_carousel 2.1.0 [intl flutter] - flutter_form_builder 6.2.0 [flutter flutter_localizations intl collection] - flutter_launcher_icons 0.9.2 [args image path yaml] - flutter_login_facebook 1.4.1 [flutter list_ext] - flutter_reorderable_list 1.2.0 [flutter] - font_awesome_flutter 9.2.0 [flutter] - google_sign_in 5.2.4 [flutter google_sign_in_platform_interface google_sign_in_web] - image_cropper 1.5.0 [flutter] - image_picker 0.8.4+11 [flutter flutter_plugin_android_lifecycle image_picker_for_web image_picker_platform_interface] - intl 0.17.0 [clock path] - legacy_buttons 0.0.1 [flutter] - linkable 3.0.1 [flutter url_launcher] - onesignal_flutter 3.3.0 [flutter] - path_provider 2.0.9 [flutter path_provider_android path_provider_ios path_provider_linux path_provider_macos path_provider_platform_interface path_provider_windows] - photo_view 0.13.0 [flutter] - provider 6.0.2 [collection flutter nested] - share_plus 3.1.0 [meta mime flutter share_plus_platform_interface share_plus_linux share_plus_macos share_plus_windows share_plus_web] - timeago 3.2.2 - url_launcher 6.0.20 [flutter url_launcher_android url_launcher_ios url_launcher_linux url_launcher_macos url_launcher_platform_interface url_launcher_web url_launcher_windows] dev dependencies: - flutter_lints 1.0.4 [lints] - flutter_native_splash 2.1.0 [args image js meta path xml yaml universal_io flutter flutter_web_plugins] - flutter_test 0.0.0 [flutter test_api path fake_async clock stack_trace vector_math async boolean_selector characters charcode collection matcher material_color_utilities meta source_span stream_channel string_scanner term_glyph typed_data] transitive dependencies: - archive 3.2.2 [crypto path] - args 2.3.0 - async 2.8.2 [collection meta] - boolean_selector 2.1.0 [source_span string_scanner] - cached_network_image_platform_interface 1.0.0 [flutter flutter_cache_manager] - cached_network_image_web 1.0.1 [flutter flutter_cache_manager cached_network_image_platform_interface] - characters 1.2.0 - charcode 1.3.1 - clock 1.1.0 - cloud_firestore_platform_interface 5.5.1 [collection firebase_core flutter meta plugin_platform_interface] - cloud_firestore_web 2.6.10 [cloud_firestore_platform_interface collection firebase_core firebase_core_web flutter flutter_web_plugins js] - collection 1.15.0 - cross_file 0.3.2 [flutter js meta] - crypto 3.0.1 [collection typed_data] - device_info_platform_interface 2.0.1 [flutter meta plugin_platform_interface] - fake_async 1.2.0 [clock collection] - ffi 1.1.2 - file 6.1.2 [meta path] - firebase_analytics_platform_interface 3.1.1 [firebase_core flutter meta plugin_platform_interface] - firebase_analytics_web 0.4.0+8 [firebase_analytics_platform_interface firebase_core firebase_core_web flutter flutter_web_plugins js] - firebase_auth_platform_interface 6.2.1 [firebase_core flutter meta plugin_platform_interface] - firebase_auth_web 3.3.9 [firebase_auth_platform_interface firebase_core firebase_core_web flutter flutter_web_plugins http_parser intl js meta] - firebase_core_platform_interface 4.2.5 [collection flutter meta plugin_platform_interface] - firebase_core_web 1.6.1 [firebase_core_platform_interface flutter flutter_web_plugins js meta] - firebase_dynamic_links_platform_interface 0.2.2 [firebase_core flutter meta plugin_platform_interface] - firebase_storage_platform_interface 4.1.1 [collection firebase_core flutter meta plugin_platform_interface] - firebase_storage_web 3.2.10 [async firebase_core firebase_core_web firebase_storage_platform_interface flutter flutter_web_plugins http js meta] - flutter_blurhash 0.6.4 [flutter] - flutter_cache_manager 3.3.0 [clock collection file flutter http path path_provider pedantic rxdart sqflite uuid] - flutter_localizations 0.0.0 [flutter intl characters clock collection material_color_utilities meta path typed_data vector_math] - flutter_native_timezone 2.0.0 [flutter_web_plugins flutter js] - flutter_plugin_android_lifecycle 2.0.5 [flutter] - flutter_web_plugins 0.0.0 [flutter js characters collection material_color_utilities meta typed_data vector_math] - freezed_annotation 1.1.0 [collection json_annotation meta] - google_sign_in_platform_interface 2.1.2 [flutter quiver] - google_sign_in_web 0.10.0+5 [flutter flutter_web_plugins google_sign_in_platform_interface js] - http 0.13.4 [async http_parser meta path] - http_parser 4.0.0 [charcode collection source_span string_scanner typed_data] - image 3.1.3 [archive meta xml] - image_picker_for_web 2.1.6 [flutter flutter_web_plugins image_picker_platform_interface] - image_picker_platform_interface 2.4.4 [cross_file flutter http plugin_platform_interface] - js 0.6.3 - json_annotation 4.4.0 [meta] - lints 1.0.1 - list_ext 1.0.4 [quiver collection] - matcher 0.12.11 [stack_trace] - material_color_utilities 0.1.3 - meta 1.7.0 - mime 1.0.1 - nested 1.0.0 [flutter] - octo_image 1.0.1 [flutter flutter_blurhash] - path 1.8.0 - path_provider_android 2.0.12 [flutter path_provider_platform_interface] - path_provider_ios 2.0.8 [flutter path_provider_platform_interface] - path_provider_linux 2.1.5 [ffi flutter path path_provider_platform_interface xdg_directories] - path_provider_macos 2.0.5 [flutter path_provider_platform_interface] - path_provider_platform_interface 2.0.3 [flutter platform plugin_platform_interface] - path_provider_windows 2.0.5 [ffi flutter path path_provider_platform_interface win32] - pedantic 1.11.1 - petitparser 4.4.0 [meta] - platform 3.1.0 - plugin_platform_interface 2.1.2 [meta] - process 4.2.4 [file path platform] - quiver 3.0.1+1 [matcher] - rxdart 0.27.3 - share_plus_linux 2.0.4 [share_plus_platform_interface file flutter meta url_launcher] - share_plus_macos 2.0.2 [share_plus_platform_interface flutter] - share_plus_platform_interface 2.0.1 [flutter meta mime plugin_platform_interface] - share_plus_web 2.0.4 [share_plus_platform_interface url_launcher flutter flutter_web_plugins meta] - share_plus_windows 2.0.3 [share_plus_platform_interface flutter meta url_launcher] - sky_engine 0.0.99 - source_span 1.8.1 [collection path term_glyph] - sprintf 6.0.0 - sqflite 2.0.2 [flutter sqflite_common path] - sqflite_common 2.2.0 [synchronized path meta] - stack_trace 1.10.0 [path] - stream_channel 2.1.0 [async] - string_scanner 1.1.0 [charcode source_span] - synchronized 3.0.0 - term_glyph 1.2.0 - test_api 0.4.8 [async boolean_selector collection meta source_span stack_trace stream_channel string_scanner term_glyph matcher] - timezone 0.8.0 [path] - typed_data 1.3.0 [collection] - universal_io 2.0.4 [collection crypto meta typed_data] - url_launcher_android 6.0.15 [flutter url_launcher_platform_interface] - url_launcher_ios 6.0.15 [flutter url_launcher_platform_interface] - url_launcher_linux 3.0.0 [flutter url_launcher_platform_interface] - url_launcher_macos 3.0.0 [flutter url_launcher_platform_interface] - url_launcher_platform_interface 2.0.5 [flutter plugin_platform_interface] - url_launcher_web 2.0.9 [flutter flutter_web_plugins url_launcher_platform_interface] - url_launcher_windows 3.0.0 [flutter url_launcher_platform_interface] - uuid 3.0.6 [crypto] - vector_math 2.1.1 - win32 2.4.1 [ffi] - xdg_directories 0.2.0+1 [meta path process] - xml 5.3.1 [collection meta petitparser] - yaml 3.1.0 [collection source_span string_scanner] ```

[odlund]

We had the same issue, pretty sure the PR above fixes it.

[CristCT]

we are in the same, I have tried everything but it always returns null, therefore it does not enter the if

[Nasrallahelfarra]

same problem

[joris-prl]

Same on iOs and Android. Not only with getInitialLink() but also with onLink.listen(). In FirebaseDynamicLinks.instance.onLink.listen(), the listen is never triggered.

[tvledesign]

I can confirm I'm experiencing the same thing but @odlund PR does in fact fixed the issue I was having. Unfortunately since this isn't implemented I had to manually edit the files myself to match the below link but of course that's not always suggested as things can get overwritten.

https://github.com/FirebaseExtended/flutterfire/pull/8263/commits/8bb4bee7e678241e75ab37a2bcfa0831426b91fa

[nilsreichardt]

I had the same problem with onLink (Have not tested getInitalLink yet). The PR by @odlund fixed it for me as well ❤️

@tvledesign You don't need to edit the code manually. You can also overwrite the firebase_dynamic_links_platform_interface dependency in your pubspec.yaml:

dependencies:
  firebase_core: ^1.13.1
  firebase_dynamic_links: ^4.1.0
  flutter:
    sdk: flutter

dependency_overrides:
  firebase_dynamic_links_platform_interface:
    git:
      url: https://github.com/defiq-dev/flutterfire
      ref: fix-type-cast-issue-in-dynamic-link-handling
      path: packages/firebase_dynamic_links/firebase_dynamic_links_platform_interface

[tvledesign]

I had the same problem with onLink (Have not tested getInitalLink yet). The PR by @odlund fixed it for me as well ❤️

@tvledesign You don't need to edit the code manually. You can also overwrite the firebase_dynamic_links_platform_interface dependency in your pubspec.yaml:

dependencies:
  firebase_core: ^1.13.1
  firebase_dynamic_links: ^4.1.0
  flutter:
    sdk: flutter

dependency_overrides:
  firebase_dynamic_links_platform_interface:
    git:
      url: https://github.com/defiq-dev/flutterfire
      ref: fix-type-cast-issue-in-dynamic-link-handling
      path: packages/firebase_dynamic_links/firebase_dynamic_links_platform_interface

Ah that's very good to know, thanks!

[martijnvanderlaan]

We had the same issue, pretty sure the PR above fixes it.

The PR from @odlund is working! Thank you 😃

[CristCT]

is there any solution?

[nilsreichardt]

@CristCT Yes, use @odlund's PR (https://github.com/FirebaseExtended/flutterfire/pull/8263) with my instruction: https://github.com/FirebaseExtended/flutterfire/issues/8261#issuecomment-1065978390

[darshankawar]

Thanks for the detailed report and fix for this. I guess since this PR adds utmParameters but utmParameters is Map<String, String>; and linkData['utmParameters'] is <Object?, Object?> which is throwing below error for me:

Unhandled Exception: type '_InternalLinkedHashMap<Object?, Object?>' is not a subtype of type 'Map<String, String>'

The fix made by this PR : https://github.com/FirebaseExtended/flutterfire/pull/8263 fixes above.

/cc @russellwheatley @Salakar

[Peeyush14198]

dependencies: firebase_core: ^1.13.1 firebase_dynamic_links: ^4.1.0 flutter: sdk: flutter

dependency_overrides: firebase_dynamic_links_platform_interface: git: url: https://github.com/defiq-dev/flutterfire ref: fix-type-cast-issue-in-dynamic-link-handling path: packages/firebase_dynamic_links/firebase_dynamic_links_platform_interface

@nilsreichardt this works for android but not for ios can you please help me with that?

[nilsreichardt]

@Peeyush14198 For me, it's working for iOS and Android. I think in your case it's a different issue or you did the configuration for iOS wrong.

[ahmarDebugger]

Same on iOs and Android. Not only with getInitialLink() but also with onLink.listen(). In FirebaseDynamicLinks.instance.onLink.listen(), the listen is never triggered.

same issue

[joris-prl]

@ahmarDebugger did you try to use @odlund's PR (#8263) with @nilsreichardt instructions?