createState method Null safety 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<MyWidget> createState() => _MyWidgetState();
Read moreWhat is stateful and stateless in Flutter?
Stateful and stateless widgets If a widget can change—when a user interacts with it, for example—it’s stateful . A stateless widget never changes. Icon , IconButton , and Text are examples of stateless widgets.
Read moreWhat is the use of state in flutter?
According to Flutter, State is the information that can be read synchronously when the widget is built and might change during the lifetime of the widget . State objects are created by the framework.
Read moreWhat are stateless and stateful widgets?
A widget is either stateful or stateless. If a widget can change—when a user interacts with it, for example—it’s stateful. A stateless widget never changes . Icon , IconButton , and Text are examples of stateless widgets.
Read moreWhat is the use of stateful widget in flutter?
Stateful Widgets are the ones that change its properties during run-time . They are dynamic i.e., they are mutable and can be drawn multiple times within its lifetime. It can change its appearance in response to events triggered by user interactions or when it receives data.
Read moreWhen we use a stateful widget which class we need to extend?
A stateful widget is implemented by two classes: a subclass of StatefulWidget and a subclass of State . The state class contains the widget’s mutable state and the widget’s build() method. When the widget’s state changes, the state object calls setState() , telling the framework to redraw the widget.
Read moreWhen should you use a stateful widget instead of a stateless widget?
Stateless widget is useful when the part of the user interface you are describing does not depend on anything other than the configuration information and the BuildContext whereas a Stateful widget is useful when the part of the user interface you are describing can change dynamically .19 Mar 2021
Read more