Example code files to understand how different flutter widgets work.
Download the lib folder for that example.
Create a default flutter demo project.
Replace the lib folder of your project with downloaded lib folder.
Build, run and pray that it works!
Flutter is Google’s UI toolkit for building beautiful, natively compiled applications for mobile, web, and desktop from a single codebase.
For more info head on over to flutter.dev.
Note: Some examples are based on external packages and Firebase. So they will not work straight out of the box.