What is a state class?

State is a behavioral design pattern that allows an object to change the behavior when its internal state changes . The pattern extracts state-related behaviors into separate state classes and forces the original object to delegate the work to an instance of these classes, instead of acting on its own.

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Why 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.

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What is 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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