[firebase_messaging] iOS onLaunch and onResume not being called

[emadd]

Fairly certain I've followed every step described in the README but I have never received a callback in my app for onLaunch or onResume.

Here is log from XCode when launching from push...

2020-01-03 19:40:45.113050-0500 Runner[32913:15066629] Warning: UNUserNotificationCenter delegate received call to -userNotificationCenter:didReceiveNotificationResponse:withCompletionHandler: but the completion handler was never called.
2020-01-03 19:40:45.114034-0500 Runner[32913:15066697] flutter: didChangeAppLifecycleState: AppLifecycleState.paused -> AppLifecycleState.inactive
2020-01-03 19:40:45.463431-0500 Runner[32913:15066697] flutter: didChangeAppLifecycleState: AppLifecycleState.inactive -> AppLifecycleState.resumed

[✓] Flutter (Channel stable, v1.12.13+hotfix.5, on Mac OS X 10.14.6 18G103, locale en-US)
• Flutter version 1.12.13+hotfix.5 at /Users/xxx/development/flutter
• Framework revision 27321ebbad (3 weeks ago), 2019-12-10 18:15:01 -0800
• Engine revision 2994f7e1e6
• Dart version 2.7.0

[✓] Android toolchain - develop for Android devices (Android SDK version 29.0.2)
• Android SDK at /Users/xxx/development/Android
• Android NDK location not configured (optional; useful for native profiling support)
• Platform android-29, build-tools 29.0.2
• ANDROID_HOME = /Users/xxx/development/Android
• Java binary at: /Applications/Android Studio.app/Contents/jre/jdk/Contents/Home/bin/java
• Java version OpenJDK Runtime Environment (build 1.8.0_202-release-1483-b49-5587405)
• All Android licenses accepted.

[✓] Xcode - develop for iOS and macOS (Xcode 11.3)
• Xcode at /Applications/Xcode.app/Contents/Developer
• Xcode 11.3, Build version 11C29
• CocoaPods version 1.8.4

[✓] Android Studio (version 3.5)
• Android Studio at /Applications/Android Studio.app/Contents
• Flutter plugin version 42.1.1
• Dart plugin version 191.8593
• Java version OpenJDK Runtime Environment (build 1.8.0_202-release-1483-b49-5587405)

[✓] VS Code (version 1.41.1)
• VS Code at /Applications/Visual Studio Code.app/Contents
• Flutter extension version 3.7.1

[✓] Connected device (1 available)
• Monolith Pro • 00008030-001910411E10802E • ios • iOS 13.3

[rscsam]

This isn't a "solution" per se, but removing
if #available(iOS 10.0, *) { UNUserNotificationCenter.current().delegate = self as? UNUserNotificationCenterDelegate }
from my AppDelegate.swift fixed this problem for me.

The official documentation for this is either flawed or out of date unfortunately.

[olivierkastel]

Thank you so much ! It also fixed the issue for me

[emadd]

@rscsam Thank you so much