The solution is to pass a new Key to WidgetB every time we need it to be rebuilt : WidgetA will see that WidgetB has changed and will rebuild it when setState is called. In other words, whenever a stateful widget’s Key property changes, calling setState on its parent will force a rebuild of the stateful widget.
Read moreWhen should I use widget Flutter?
In flutter, Widget is a way to declare and construct UI . If you are familiar with the Android or iOS development then you might make the immediate connection with the views (on Android) or UIViews (on iOS).
Read moreWhat is flutter build method?
The flutter build method in flutter describes the user interface represented by this widget when it is inserted in the build context provided in the widget tree and the dependency of the widget is changed .
Read moreDoes a new state object is created if the widget re build?
The State object consists of values that can change. The State object contains its associated widget’s ‘mutable state . ‘ — it stores values that can change over time. When those values have changed, more often than not, the associated StatefulWidget is re-created.
Read moreWhat’s the job of the build () method?
build method Null safety Describes the part of the user interface represented by this widget . The framework calls this method when this widget is inserted into the tree in a given BuildContext and when the dependencies of this widget change (e.g., an InheritedWidget referenced by this widget changes).
Read moreWhat is the main purpose of setState () method call?
Calling setState notifies the framework that the internal state of this object has changed in a way that might impact the user interface in this subtree, which causes the framework to schedule a build for this State object.
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