Flutter میں کئی state management approaches ہیں — built-in (setState, InheritedWidget) سے لے کر مشہور libraries تک (Provider, Riverpod, Bloc, GetX)۔ اہم options، ان کی philosophies، اور trade-offs کو سمجھنا ایک app کے لیے صحیح approach منتخب کرنے میں مدد دیتا ہے۔
Built-in approaches
setState → local state in a StatefulWidget (simple; doesn't scale to shared state)
InheritedWidget → built-in way to share state down the tree (the foundation many
libraries build on; verbose to use directly)
Provider — سادہ اور تجویز کردہ
PROVIDER → official-recommended, built on InheritedWidget; simple, widely used:
→ provide state at a point in the tree; descendants "watch"/consume it
→ ChangeNotifier holds state and notifies listeners → UI rebuilds on change
→ good for many apps; gentle learning curve
