Flutter iOS showing white screen on launch and hang up on that screen

Question

Flutter iOS app showing white screen on launch and hang up on that screen

In the default Android emulator it works fine, but when I run it on iOS it shows a white screen

fortoers-MBP:ios fortoer$ flutter run
Changing current working directory to: /Users/fortoer/Desktop/Measurements/Flutterapp
Launching lib/main.dart on iPhone 12 Pro in debug mode...
Running pod install...                                              3.0s
Upgrading Pods-Runner-frameworks.sh
Running Xcode build...                                                  
 └─Compiling, linking and signing...                        11.8s
Xcode build done.                                           74.0s
[VERBOSE-2:FlutterDarwinContextMetalImpeller.mm(37)] Using the Impeller rendering backend.
[VERBOSE-2:FlutterDarwinContextMetalImpeller.mm(37)] Using the Impeller rendering backend.
[VERBOSE-2:dart_vm_initializer.cc(41)] Unhandled Exception: Null check operator used on a null value
#0      NotificationHelper.initialize (package:flutter_sixvalley_ecommerce/notification/notification_helper.dart:23:50)
#1      main (package:flutter_sixvalley_ecommerce/main.dart:87:28)
<asynchronous suspension>
Syncing files to device iPhone 12 Pro...                           717ms

Flutter run key commands.
r Hot reload. 🔥🔥🔥
R Hot restart.
h List all available interactive commands.
d Detach (terminate "flutter run" but leave application running).
c Clear the screen
q Quit (terminate the application on the device).

A Dart VM Service on iPhone 12 Pro is available at: http://127.0.0.1:53665/PZkrDfHI4KA=/
The Flutter DevTools debugger and profiler on iPhone 12 Pro is available at:
http://127.0.0.1:9101?uri=http://127.0.0.1:53665/PZkrDfHI4KA=/

fortoers-MBP:ios fortoer$ flutter doctor
Doctor summary (to see all details, run flutter doctor -v):
[✓] Flutter (Channel stable, 3.13.6, on macOS 13.4.1 22F770820d darwin-arm64, locale en-SA)
[✓] Android toolchain - develop for Android devices (Android SDK version 32.0.0-rc1)
[✓] Xcode - develop for iOS and macOS (Xcode 14.3.1)
[✓] Chrome - develop for the web
[✓] Android Studio (version 2020.3)
[✓] VS Code (version 1.82.2)
[✓] Connected device (3 available)
[✓] Network resources

Answer 1

See if these steps help. Step1:-Add the flutter Plugin. ... Step2:-Initialise flutter_native_splash in pubspec.yaml file. ... Step3:-Customise the settings. ... Step4:-Run the Package and check the output.