As we know, we have to make a hierarchy of widgets to design a screen in Flutter with help of Stateless and Stateful widgets. As the names suggest, the Stateless widget has no internal state which means once built and can never be modified. On the other side, the Stateful widgets are dynamic and have a state, which we can be modified easily throughout their life-cycle without re-initiation.
The state of widget is the information that can be read synchronously when the widget is built and change during the lifetime of the widget. In order to change widget, you need to update the state object which can be update by using setState() function of Stateful widgets.
The state of widget is the information that can be read synchronously when the widget is built and change during the lifetime of the widget. In order to change widget, you need to update the state object which can be update by using setState() function of Stateful widgets.