1 Answer. You will need transform your “Container” in a custom statefull widget and then make his state management by your needs. Take a look at BLoC pattern here . With this pattern you will be able to update a specific widget in all widget tree without recreate all widgets.
Read moreDoes setState rebuild all widgets?
In the onPressed event of the “Add Item” button, we add a new item then call setState in order to rebuild WidgetA and all it’s inner widgets , including WidgetB: onPressed: () => setState(() { items.
Read moreHow do you refresh the state in flutter?
Update State In Flutter
Read moreWhy do you need to call setState (() }) in a StatefulWidget when changing some internal data )?
setState is a way to dynamically change the UI . We call it inside the State Object class of the StatefulWidget. Calling setState marks the corresponding Widget dirty .20 Haz 2021
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