How does Flutter run my code on Android?

 In

The engine’s C and C++ code are compiled with Android’s NDK. The Dart code (both the SDK’s and yours) are ahead-of-time (AOT) compiled into a native, ARM and x86 libraries. Those libraries are included in a “runner” Android project, and the whole thing is built into an APK. When launched, the app loads the Flutter library. Any rendering, input or event handling, and so on, are delegated to the compiled Flutter and app code. This is similar to the way many game engines work.

Debug mode builds use a virtual machine (VM) to run Dart code (hence the “debug” banner they show to remind people that they’re slightly slower) in order to enable stateful hot reload.

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