Mastering Flutter Widget Lifecycle

If you're diving deeper into Flutter development, mastering the widget lifecycle is essential for writing clean, efficient, and maintainable code. Here's a quick overview:

✅ createState – Creates and returns the State object for a StatefulWidget.

✅ initState – Best place to initialize controllers, variables, etc. Called once.
👉 Avoid using context here unless absolutely necessary.

✅ didChangeDependencies – Called after initState and whenever inherited widgets like Theme or MediaQuery change.
👉 Great for setup that relies on context.

✅ didUpdateWidget – Triggered when the parent widget updates with new data.
👉 Compare oldWidget with the current widget to react accordingly.

✅ build – Pure UI logic. Avoid any heavy lifting here.

✅ dispose – Final cleanup zone. Dispose of controllers, listeners, etc.

💡 These methods form the backbone of responsive, efficient Flutter apps.