A new Calculate App based on Flutter.
If you want to build this app from the source, You need to install Flutter framework and install it in your system path.
Here is all the guide you need.
https://docs.flutter.dev/get-started/install
Simply download this repository or clone it.
Navigate to the downloaded folder (after extracting zip file)
Run this command
flutter build apk --build-name=Calculator --build-number=2
Now navigate to
build/app/outputs/flutter-apk
YOU HAVE NOW SUCCESSFULLY BUILT THE APP FROM SCRATCH.
Navigate to lib
folder in the project folder or github.