How is Flutter app compiled?

Source: Based on Flutter System Architecture Using the Dart language allows Flutter to compile the source code ahead-of-time to native code. 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.

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How does cross compilation work?

A cross-compiler is one that compiles binaries for architectures other than its own, such as compiling ARM binaries on a Intel’s x86 processor. A “cross compiler” executes in one environment and generates code for another . A “native compiler” generates code for its own execution environment.

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Why is cross compilation hard?

“building a cross-compiler is significantly harder than building a compiler that targets the platform it runs on.” The problem exists due to the way libraries are built and accessed . In the normal situation all the libraries are located in a specific spot, and are used by all apps on that system.

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