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
Read moreWhat does initState?
InitState() is used to subscribe to the object . Overriding of initState() method performs initialization which depends on the location at which this object was inserted into the tree (like context) or on the widget used to configure this object (or widget).
Read moreHow do I use initState in stateless widget?
“flutter initstate in stateless widget” Code Answer
Read moreWhat is void initState?
void initState() @mustCallSuper, @protected. Called when this object is inserted into the tree . The framework will call this method exactly once for each State object it creates.
Read moreWhat is a Statelesswidget?
Stateless Widget: The widgets whose state can not be altered once they are built are called stateless widgets. These widgets are immutable once they are built i.e any amount of change in the variables, icons, buttons, or retrieving data can not change the state of the app.
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