The setState() method notifies the framework that the internal state of the current object is “dirty,” which means that it has been changed in a way that might impact the UI. After this notification, the framework will call the build() method to update and rebuild a widget.
Read moreWhat can I use instead of setState in flutter?
The short answer is that just add currentIndex as one of the parameter inside your navBarSection . Inside home. dart , just pass the currentIndex of the page.
Read moreWhy do you need to call setState in a stateful widget?
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.
Read moreWhy do you need to call setState (() }) in a stateful widget 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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