State
Also written: State object, createState
The object that holds a `StatefulWidget`'s changing data and its `build` method; Flutter keeps it alive while the widget is on screen. Inside it, `widget` refers to the widget it belongs to.
Also written: State object, createState
The object that holds a `StatefulWidget`'s changing data and its `build` method; Flutter keeps it alive while the widget is on screen. Inside it, `widget` refers to the widget it belongs to.