Flutter - background notification using FCM on IOS
7,558
Solution 1
Background message handling is not supported on iOS as of firebase_messaging 6.0.9.
As you can see in the changelog, support was added only for Android: https://pub.dev/packages/firebase_messaging#515
Check out this github issue and add a reaction if you want it implemented sooner: https://github.com/FirebaseExtended/flutterfire/issues/47
Solution 2
The firebase_messaging > 8.0.0-dev plugin now supports background message handling for iOS too.
Changelog: https://pub.dev/packages/firebase_messaging/versions/8.0.0-dev.11/changelog
Migrating to v8: https://firebase.flutter.dev/docs/migration/
Author by
Billy Mahmood
Updated on December 14, 2022Comments
-
Billy Mahmood over 1 year
I am trying to receive silent/background push-notifications on an IOS device using Flutter. I have managed to get this to work on Android, Just IOS is the issue.
Setup - I am using the
firebase_messaging 5.1.6Plugin - I have tickedremote notificationsandbackground fetchin XCode, and have also enabled Push notifications in Capabilities - Push notifications with data seem to work fineMy payload (I have tried with and without data)
{"registration_ids":["<IOS DEVICE IDS>"],"priority":"high","content_available":true,"mutable_content":true,"data":{"title":"Title.","body":"Message."}}My firebase configuration below:
The reason
onBackgroundMessageis set to null is that I get the error below:Unhandled Exception: MissingPluginException(No implementation found for method FcmDartService#start on channel plugins.flutter.io/firebase_messaging)Future<dynamic> myBackgroundMessageHandler(Map<String, dynamic> message) async { // test code NetworkService networkService = NetworkService(); networkService.getData("test"); // hit a test endpoint to make sure the code excuted print("myBackgroundMessageHandler: $message"); } _firebaseMessaging.configure( onMessage: (Map<String, dynamic> message) async { print("onMessage: $message"); NetworkService networkService = NetworkService(); networkService.getData("test"); }, onBackgroundMessage: Platform.isIOS ? null : myBackgroundMessageHandler, onLaunch: (Map<String, dynamic> message) async { print("onLaunch: $message"); }, onResume: (Map<String, dynamic> message) async { print("onResume: $message"); }, );Full error
2019-10-15 08:44:52.766262+0100 Runner[16132:1794539] - <AppMeasurement>[I-ACS036001] Analytics screen reporting is disabled. UIViewController transitions will not be logged. 2019-10-15 08:44:52.909787+0100 Runner[16132:1794333] Metal API Validation Enabled 2019-10-15 08:44:53.173885+0100 Runner[16132:1794552] flutter: Observatory listening on http://127.0.0.1:58105/hC1vIwLgB_o=/ 2019-10-15 08:44:53.294824+0100 Runner[16132:1794539] 6.9.0 - [Firebase/Analytics][I-ACS023007] Analytics v.60102000 started 2019-10-15 08:44:53.295297+0100 Runner[16132:1794539] 6.9.0 - [Firebase/Analytics][I-ACS023008] To enable debug logging set the following application argument: -FIRAnalyticsDebugEnabled (see https://help.apple.com/xcode/mac/8.0/#/dev3ec8a1cb4) 2019-10-15 08:44:53.940639+0100 Runner[16132:1794545] flutter: 1 /var/mobile/Containers/Data/Application/E0ADA03B-747D-4A66-9A96-97160F70D80A/Documents/db 2019-10-15 08:44:54.030056+0100 Runner[16132:1794545] [VERBOSE-2:ui_dart_state.cc(148)] Unhandled Exception: MissingPluginException(No implementation found for method FcmDartService#start on channel plugins.flutter.io/firebase_messaging) #0 MethodChannel.invokeMethod (package:flutter/src/services/platform_channel.dart:314:7) <asynchronous suspension> #1 FirebaseMessaging.configure (package:firebase_messaging/firebase_messaging.dart:118:16) #2 configureFirebaseMessaging (package:gard/utilities/service_locator.dart:53:22) #3 _AsyncAwaitCompleter.start (dart:async-patch/async_patch.dart:43:6) #4 configureFirebaseMessaging (package:gard/utilities/service_locator.dart:47:40) #5 main (package:gard/main.dart:31:9) #6 _asyncThenWrapperHelper.<anonymous closure> (dart:async-patch/async_patch.dart:71:64) #7 _rootRunUnary (dart:async/zone.dart:1132:38) #8 _CustomZone.runUnary (dart:async/zone.dart:1029:19) #9 _FutureListener.handleValue (dart:async/future_impl.dart:137:18) #10 Future._propagateToListeners.handleValueCallback (dart:async/future_impl.dart:678:45) #11 Future._propagateToListeners (dart:async/future_impl.dart:707:32) #12 Future._completeWithValue (dart:async/future_impl.dart:522:5) #13 _AsyncAwaitCompleter.complete (dart:async-patch/async_patch.dart:30:15) #14 _completeOnAsyncReturn (dart:async-patch/async_patch.dart:288:13) #15 setupDatabase (package:gard/utilities/service_locator.dart) #16 _asyncThenWrapperHelper.<anonymous closure> (dart:async-patch/async_patch.dart:71:64) #17 _rootRunUnary (dart:async/zone.dart:1132:38) #18 _CustomZone.runUnary (dart:async/zone.dart:1029:19) #19 _FutureListener.handleValue (dart:async/future_impl.dart:137:18) #20 Future._propagateToListeners.handleValueCallback (dart:async/future_impl.dart:678:45) #21 Future._propagateToListeners (dart:async/future_impl.dart:707:32) #22 Future._completeWithValue (dart:async/future_impl.dart:522:5) #23 _AsyncAwaitCompleter.complete (dart:async-patch/async_patch.dart:30:15) #24 _completeOnAsyncReturn (dart:async-patch/async_patch.dart:288:13) #25 DatabaseCreator.initDatabase (package:gard/database/database_creator.dart) #26 _asyncThenWrapperHelper.<anonymous closure> (dart:async-patch/async_patch.dart:71:64) #27 _rootRunUnary (dart:async/zone.dart:1132:38) #28 _CustomZone.runUnary (dart:async/zone.dart:1029:19) #29 _FutureListener.handleValue (dart:async/future_impl.dart:137:18) #30 Future._propagateToListeners.handleValueCallback (dart:async/future_impl.dart:678:45) #31 Future._propagateToListeners (dart:async/future_impl.dart:707:32) #32 Future._completeWithValue (dart:async/future_impl.dart:522:5) #33 _AsyncAwaitCompleter.complete (dart:async-patch/async_patch.dart:30:15) #34 _completeOnAsyncReturn (dart:async-patch/async_patch.dart:288:13) #35 BasicLock.synchronized (package:synchronized/src/basic_lock.dart) #36 _asyncThenWrapperHelper.<anonymous closure> (dart:async-patch/async_patch.dart:71:64) #37 _rootRunUnary (dart:async/zone.dart:1132:38) #38 _CustomZone.runUnary (dart:async/zone.dart:1029:19) #39 _FutureListener.handleValue (dart:async/future_impl.dart:137:18) #40 Future._propagateToListeners.handleValueCallback (dart:async/future_impl.dart:678:45) #41 Future._propagateToListeners (dart:async/future_impl.dart:707:32) #42 Future._completeWithValue (dart:async/future_impl.dart:522:5) #43 _AsyncAwaitCompleter.complete (dart:async-patch/async_patch.dart:30:15) #44 _completeOnAsyncReturn (dart:async-patch/async_patch.dart:288:13) #45 ReentrantLock.synchronized.<anonymous closure> (package:synchronized/src/reentrant_lock.dart) #46 _asyncThenWrapperHelper.<anonymous closure> (dart:async-patch/async_patch.dart:71:64) #47 _rootRunUnary (dart:async/zone.dart:1132:38) #48 _CustomZone.runUnary (dart:async/zone.dart:1029:19) #49 _FutureListener.handleValue (dart:async/future_impl.dart:137:18) #50 Future._propagateToListeners.handleValueCallback (dart:async/future_impl.dart:678:45) #51 Future._propagateToListeners (dart:async/future_impl.dart:707:32) #52 Future._completeWithValue (dart:async/future_impl.dart:522:5) #53 _AsyncAwaitCompleter.complete (dart:async-patch/async_patch.dart:30:15) #54 _completeOnAsyncReturn (dart:async-patch/async_patch.dart:288:13) #55 SqfliteDatabaseFactoryMixin.openDatabase.<anonymous closure> (package:sqflite/src/factory_mixin.dart) #56 _asyncThenWrapperHelper.<anonymous closure> (dart:async-patch/async_patch.dart:71:64) #57 _rootRunUnary (dart:async/zone.dart:1132:38) #58 _CustomZone.runUnary (dart:async/zone.dart:1029:19) #59 _FutureListener.handleValue (dart:async/future_impl.dart:137:18) #60 Future._propagateToListeners.handleValueCallback (dart:async/future_impl.dart:678:45) #61 Future._propagateToListeners (dart:async/future_impl.dart:707:32) #62 Future._completeWithValue (dart:async/future_impl.dart:522:5) #63 _AsyncAwaitCompleter.complete (dart:async-patch/async_patch.dart:30:15) #64 _completeOnAsyncReturn (dart:async-patch/async_patch.dart:288:13) #65 SqfliteDatabaseOpenHelper.openDatabase (package:sqflite/src/database.dart) #66 _asyncThenWrapperHelper.<anonymous closure> (dart:async-patch/async_patch.dart:71:64) #67 _rootRunUnary (dart:async/zone.dart:1132:38) #68 _CustomZone.runUnary (dart:async/zone.dart:1029:19) #69 _FutureListener.handleValue (dart:async/future_impl.dart:137:18) #70 Future._propagateToListeners.handleValueCallback (dart:async/future_impl.dart:678:45) #71 Future._propagateToListeners (dart:async/future_impl.dart:707:32) #72 Future._completeWithValue (dart:async/future_impl.dart:522:5) #73 _AsyncAwaitCompleter.complete (dart:async-patch/async_patch.dart:30:15) #74 _completeOnAsyncReturn (dart:async-patch/async_patch.dart:288:13) #75 SqfliteDatabaseMixin.doOpen (package:sqflite/src/database_mixin.dart) #76 _asyncThenWrapperHelper.<anonymous closure> (dart:async-patch/async_patch.dart:71:64) #77 _rootRunUnary (dart:async/zone.dart:1132:38) #78 _CustomZone.runUnary (dart:async/zone.dart:1029:19) #79 _FutureListener.handleValue (dart:async/future_impl.dart:137:18) #80 Future._propagateToListeners.handleValueCallback (dart:async/future_impl.dart:678:45) #81 Future._propagateToListeners (dart:async/future_impl.dart:707:32) #82 Future._completeWithValue (dart:async/future_impl.dart:522:5) #83 _AsyncAwaitCompleter.complete (dart:async-patch/async_patch.dart:30:15) #84 _completeOnAsyncReturn (dart:async-patch/async_patch.dart:288:13) #85 SqfliteDatabaseMixin.txnSynchronized (package:sqflite/src/database_mixin.dart) #86 _asyncThenWrapperHelper.<anonymous closure> (dart:async-patch/async_patch.dart:71:64) #87 _rootRunUnary (dart:async/zone.dart:1132:38) #88 _CustomZone.runUnary (dart:async/zone.dart:1029:19) #89 _FutureListener.handleValue (dart:async/future_impl.dart:137:18) #90 Future._propagateToListeners.handleValueCallback (dart:async/future_impl.dart:678:45) #91 Future._propagateToListeners (dart:async/future_impl.dart:707:32) #92 Future._completeWithValue (dart:async/future_impl.dart:522:5) #93 _AsyncAwaitCompleter.complete (dart:async-patch/async_patch.dart:30:15) #94 _completeOnAsyncReturn (dart:async-patch/async_patch.dart:288:13) #95 SqfliteDatabaseMixin._runTransaction (package:sqflite/src/database_mixin.dart) #96 _asyncThenWrapperHelper.<anonymous closure> (dart:async-patch/async_patch.dart:71:64) #97 _rootRunUnary (dart:async/zone.dart:1132:38) #98 _CustomZone.runUnary (dart:async/zone.dart:1029:19) #99 _FutureListener.handleValue (dart:async/future_impl.dart:137:18) #100 Future._propagateToListeners.handleValueCallback (dart:async/future_impl.dart:678:45) #101 Future._propagateToListeners (dart:async/future_impl.dart:707:32) #102 Future._completeWithValue (dart:async/future_impl.dart:522:5) #103 _AsyncAwaitCompleter.complete (dart:async-patch/async_patch.dart:30:15) #104 _completeOnAsyncReturn (dart:async-patch/async_patch.dart:288:13) #105 SqfliteDatabaseMixin.endTransaction (package:sqflite/src/database_mixin.dart) #106 _asyncThenWrapperHelper.<anonymous closure> (dart:async-patch/async_patch.dart:71:64) #107 _rootRunUnary (dart:async/zone.dart:1132:38) #108 _CustomZone.runUnary (dart:async/zone.dart:1029:19) #109 _FutureListener.handleValue (dart:async/future_impl.dart:137:18) #110 Future._propagateToListeners.handleValueCallback (dart:async/future_impl.dart:678:45) #111 Future._propagateToListeners (dart:async/future_impl.dart:707:32) #112 Future._completeWithValue (dart:async/future_impl.dart:522:5) #113 _AsyncAwaitCompleter.complete (dart:async-patch/async_patch.dart:30:15) #114 _completeOnAsyncReturn (dart:async-patch/async_patch.dart:288:13) #115 SqfliteDatabaseMixin.txnSynchronized (package:sqflite/src/database_mixin.dart) #116 _asyncThenWrapperHelper.<anonymous closure> (dart:async-patch/async_patch.dart:71:64) #117 _rootRunUnary (dart:async/zone.dart:1132:38) #118 _CustomZone.runUnary (dart:async/zone.dart:1029:19) #119 _FutureListener.handleValue (dart:async/future_impl.dart:137:18) #120 Future._propagateToListeners.handleValueCallback (dart:async/future_impl.dart:678:45) #121 Future._propagateToListeners (dart:async/future_impl.dart:707:32) #122 Future._completeWithValue (dart:async/future_impl.dart:522:5) #123 _AsyncAwaitCompleter.complete (dart:async-patch/async_patch.dart:30:15) #124 _completeOnAsyncReturn (dart:async-patch/async_patch.dart:288:13) #125 wrapDatabaseException (package:sqflite/src/exception_impl.dart) #126 _asyncThenWrapperHelper.<anonymous closure> (dart:async-patch/async_patch.dart:71:64) #127 _rootRunUnary (dart:async/zone.dart:1132:38) #128 _CustomZone.runUnary (dart:async/zone.dart:1029:19) #129 _FutureListener.handleValue (dart:async/future_impl.dart:137:18) #130 Future._propagateToListeners.handleValueCallback (dart:async/future_impl.dart:678:45) #131 Future._propagateToListeners (dart:async/future_impl.dart:707:32) #132 Future._completeWithValue (dart:async/future_impl.dart:522:5) #133 _AsyncAwaitCompleter.complete (dart:async-patch/async_patch.dart:30:15) #134 _completeOnAsyncReturn (dart:async-patch/async_patch.dart:288:13) #135 MethodChannel.invokeMethod (package:flutter/src/services/platform_channel.dart) #136 _asyncThenWrapperHelper.<anonymous closure> (dart:async-patch/async_patch.dart:71:64) #137 _rootRunUnary (dart:async/zone.dart:1132:38) #138 _CustomZone.runUnary (dart:async/zone.dart:1029:19) #139 _FutureListener.handleValue (dart:async/future_impl.dart:137:18) #140 Future._propagateToListeners.handleValueCallback (dart:async/future_impl.dart:678:45) #141 Future._propagateToListeners (dart:async/future_impl.dart:707:32) #142 Future._completeWithValue (dart:async/future_impl.dart:522:5) #143 Future._asyncComplete.<anonymous closure> (dart:async/future_impl.dart:552:7) #144 _rootRun (dart:async/zone.dart:1124:13) #145 _CustomZone.run (dart:async/zone.dart:1021:19) #146 _CustomZone.runGuarded (dart:async/zone.dart:923:7) #147 _CustomZone.bindCallbackGuarded.<anonymous closure> (dart:async/zone.dart:963:23) #148 _microtaskLoop (dart:async/schedule_microtask.dart:41:21) #149 _startMicrotaskLoop (dart:async/schedule_microtask.dart:50:5) 2019-10-15 08:44:54.520569+0100 Runner[16132:1794333] [TSBackgroundFetch configure]: { enableHeadless = 1; minimumFetchInterval = 15; stopOnTerminate = 0; } 2019-10-15 08:44:54.525630+0100 Runner[16132:1794333] [TSBackgroundFetch addListener]: com.transistorsoft/flutter_background_fetch 2019-10-15 08:44:54.525691+0100 Runner[16132:1794333] [TSBackgroundFetch start] 2019-10-15 08:44:54.761953+0100 Runner[16132:1794545] flutter: ---- BackgroundFetch configure success: 2 2019-10-15 08:44:56.139196+0100 Runner[16132:1794545] flutter: -----setNotificationToken----- 2019-10-15 08:44:56.139413+0100 Runner[16132:1794545] flutter: fSpD_VrnO2k:APA91bEwfT083oNVxPDy-kiF9mTPZiyoQbS2owQTK18erSARU8akzANG6H1zWr5bgMpAePkx3jc3F3spSAOSsf4Wr_zj3bDEi1yw1E5UeHSJCsMh3flDxNxq2mE__FwhiP2M35szQi0l