Flutter: Default Tab Bar Controller does not maintain state after swipe

Question

I am writing an application in flutter that has 4 tabbed views, kinda like the stock android phone app or clock app. One of those views hash a floating action button that wh

Answer 1

You need to use AutomaticKeepAliveClientMixin over your stateful widget and implement override method called wantKeepAlive

class MyApp extends StatefulWidget {
@override
createState() => new MyAppState();
}

use AutomaticKeepAliveClientMixin with your class extending state and ov

class MyAppState extends State with AutomaticKeepAliveClientMixin{

//your existing code.....

@override
bool get wantKeepAlive => true;   //by default it will be null, change it to true.

//your existing code......

}

on setting wantKeepAlive to true, initState method will run only once, at the time of creation.