super. initState() should always be the first line in your initState method . From docs: initState(): If you override this, make sure your method starts with a call to super.
Read moreHow do you define setState in flutter?
Summary. 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 .
Read moreHow do I use setState in widget flutter?
When you change the state of a Stateful Widget, use setState() to cause a rebuild of the widget and its descendants . You don’t need to call setState() in the constructor or initState() of the widget, because build() will be run afterward anyway. Also don’t call setState() in synchronous code inside build().28 May 2021
Read moreWhat is super initState in Flutter?
Credit to @Remi, initState() is a method which is called once when the stateful widget is inserted in the widget tree . We generally override this method if we need to do some sort of initialisation work like registering a listener because, unlike build() , this method is called once.12 Eyl 2018
Read moreWhat does initState () do in Flutter?
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 moreCan you call setState in initState flutter?
Because we can’t call setState() directly in the initState method , we can’t call it from a function called by initState either. Unless this function is asynchronous and the setState call is made after the first await.16 May 2021
Read moreWhat is void initState () in Flutter?
initState() is a method of class State and it is considered as an important lifecycle method in Flutter. initState() is called only Once and we use it for one time initializations. Example : To initialize data that depends on the specific BuildContext . To initialize data that needs to executed before build() .
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