Could anyone please explain behind the scenes of the flutter determines written code is for android or ios.

CodePudding user response：

Dart is ahead-of-time (AOT) compiled into fast native X86 or ARM code for Android and iOS devices. Flutter can also call out to Android and use Android features only available in Java (same with iOS). Flutter is written in DART so we can't call that it compiles but DART does and it's rendering engine does.

Flutter Framework provides all widgets and packages whereas Flutter SDK allows you to build apps for android and IOS

The engine’s C/C code is compiled with Android’s NDK or iOS’ LLVM. Both pieces are wrapped in a “runner” Android and iOS project, resulting in an apk or ipa file respectively. On app launch, any rendering, input, or event is delegated to the compiled Flutter engine and app code.

I thought images would be much clear instead of writing many things.

More of these: https://docs.flutter.dev/resources/faq#run-android