flutter_collapsing_toolbar library Null safety

Classes

CollapsingToolbar
It helps you in creating a Romantic Collapsing Toolbar. This widget is created to be able to standalone with any views, helps you able to add it into any complex ScrollView or ListView.
CollapsingToolbarDecoration
This is the default decoration for CollapsingToolbar. It is the default design, and you can create your own decoration that based on this solution. It's easy to handle.

Extensions

CollapsingToolbarColorEx
An extension for Color