Extracting strings and function names from Flutter apks, based on this blogpost - https://medium.com/@rondalal54/reverse-engineering-flutter-apps-5d620bb105c0
flutter_extractor.py [OPTIONS] APP_PATH
app_path: path to the extracted apk directory (the output directory of the apktool)
Options:
--out TEXT The output dir
--help Show this message and exit.
Please use ApkTool or jadx before running the extractor. Due to the fact that APKs are somewhat a zip file, there's need to extract the files first, for the extractor to use them.
python flutter_extractor.py /path/to/extracted_apk/ --out ./flutter_data