I am currently working on an android project which is ~75% complete. I need a similar application for iOS.
Can I import this project to flutter? How?
Also, w
Flutter use a radically different rendering architecture. All the rendering is computed with Dart code, without ever using native elements.
So not only you can't use native code, you can't have something like a "Import native to flutter" either.
For libraries, it's a complicated topic. You can use them. But only inside what Flutter calls Platform channel. Which is an api to make system call written in code that run natively in the OS.
So libraries such as Firebase are fine. But components libraries or things like rxjava are out. You'll need a similar dart library.