setState() or markNeedsBuild called during build

Question

class MyHome extends StatefulWidget {
  @override
  State createState() => new MyHomePage2();
}

class MyHomePage2 extends State

        

Answer 1

I was also setting the state during build, so, I deferred it to the next tick and it worked.

previously

myFunction()

New

Future.delayed(Duration.zero, () async {
  myFunction();
});