What is state in stateful widget Flutter?

A state management can be divided into two categories based on the duration the particular state lasts in an application . Ephemeral − Last for a few seconds like the current state of an animation or a single page like current rating of a product. Flutter supports its through StatefulWidget.

When a Flutter builds a StatefulWidget , it creates a State object. This object is where all the mutable state for that widget is held. The concept of state is defined by two things: The data used by the widget might change . The data can’t be read synchronously when the widget is built.