A demo showcasing how to use lottie in flutter, showcasing a usecase where a progress bar can be made out of three different animations.
Additional information about the lottie package https://pub.dev/packages/lottie
Plus a place where you can edit and test lottie animations https://lottiefiles.com/
A few resources to get you started if this is your first Flutter project:
For help getting started with Flutter development, view the online documentation, which offers tutorials, samples, guidance on mobile development, and a full API reference.