StatefulWidgets are separated into 2 classes because one part is entirely immutable . Widget subclass cannot store any mutable field. We are not in React where “Components” are mutable and the instance stays the same for the whole life of the component.
Read moreHow build () method works how it rebuild itself?
The build method is called any time you call setState , your widget’s dependencies update, or any of the parent widgets are rebuilt (when setState is called inside of those). Your widget will depend on any InheritedWidget you use, e.g. Theme. of(context) , MediaQuery. of(context) etc.16 Ağu 2019
Read moreWhy is the build method on state and not StatefulWidget?
1 Answer. The reason why StatefulWidget uses a separate State class and not having build method inside its body is because all fields inside a Widget are immutable , and this includes all its sub-classes.
Read moreWhy We Use build in Flutter?
Flutter is an open-source software development kit which enables smooth and easy cross-platform mobile app development . You can build high quality natively compiled apps for iOS and Android quickly, without having to write the code for the two apps separately. All you need is one codebase for both platforms.
Read moreHow build method works how it rebuild itself?
There are six sets, because whenever you run the Flutter app, the setState() calls the build() method and it displays the number 0 on the screen. Next, each time you press the button, it rebuilds the descendant widget trees also. If we quit the app and restarts the app again, it starts with a fresh display of a screen.22 May 2021
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