Flutter allows us to call platform-specific APIs available in Java or Kotlin code on Android and in Objective C or Swift code on iOS. Flutter’s platform-specific API works with message passing.
Read moreHow do you call a native function in Flutter?
Flutter Call Native Android Code – Easily Example
Read moreHow does the platform channel work?
Overall the Platform Channel represents a way to connect native code with the Flutter app (Dart) . It can be used to implement any Flutter missing functionality using a platform-specific code (plugins) and call any APIs whether available in Java or Kotlin code on Android, or in Objective-C or Swift code on iOS.
Read moreHow do I use Android native code on Flutter?
Calling Android Native Code in Flutter
Read moreHow do you call a platform-specific code in Flutter?
Writing custom platform-specific code
Read more