What is StatefulWidget in Flutter?

This answer contains multi-languages such like English, Hindi and Gujarati.

In English:

• This is a kind of widget which is dynamic and placed inside a memory (RAM).
• Using this widget we can update an UI using its lifecycle method setState().
• Since this widget did created in memory frequently, this supplies slow performance as compared to StatelesWidget.
• This widget contains many lifecycle methods, such as
• createState()
• initState()
• build()
• setState()
• dispose() and many more…

How to create StateefulWidget?

class HomePage extends StatefulWidget {
  @override
  State<HomePage> createState() => _HomePageState();
}

class _HomePageState extends State<HomePage> {
  @override
  Widget build(BuildContext context) {
    return Container();
  }
}

In Hindi:

• यह एक ऐसा widget है जो की dynamic है और memory (RAM) के अंदर बनता है |
• इस widget की lifecycle method setState() की मदद से हम UI को update कर सक्ते है |
• क्यूँकि यह widget memory में बारबार बनता है, इसलिए यह widget StatelessWidget के मुकाबले slow performance देता है |
• यह widget कई सारी lifecycle methods प्रदान करता है, जैसे की
• createState()
• initState()
• build()
• setState()
• dispose() और कई सारी …

In Gujarati:

• આ widget dynamic હોય છે અને memory (RAM) માં બનતો હોય છે.
• આ widget ની lifecycle method setState() ની મદદ થી UI ને update કરી શકાય છે.
• આ widget memory (RAM) માં વારંવાર બનતો હોવાથી StatelesWidget ની સરખામણી માં ધીમું performance આપે છે.
• આ widget ઘણી lifecycle methods ધરાવે છે, જેવી કે
• createState()
• initState()
• build()
• setState()
• dispose() અને ઘણી બધી …

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