createState method
Creates the mutable state for this widget at a given location in the tree.
Subclasses should override this method to return a newly created
instance of their associated State
subclass:
@override
State<SomeWidget> createState() => _SomeWidgetState();
The framework can call this method multiple times over the lifetime of
a StatefulWidget. For example, if the widget is inserted into the tree
in multiple locations, the framework will create a separate State
object
for each location. Similarly, if the widget is removed from the tree and
later inserted into the tree again, the framework will call createState
again to create a fresh State
object, simplifying the lifecycle of
State
objects.
Implementation
@override
State<BlocBuilderBase<B, S>> createState() => _BlocBuilderBaseState<B, S>();