What is the difference between dispose and deactivate?

In Flutter, dispose and deactivate are widget lifecycle methods, but they serve different purposes:

• deactivate() is called when a widget is removed from the widget tree but can be inserted into another location. It is an intermediate stage when the widget is temporarily "deactivated".

• dispose() is called when a widget is permanently removed and will no longer be used. Resources are released here, such as closing controllers, subscriptions, etc.

Example:

@override
void deactivate() {
  super.deactivate();
  print('Widget deactivated');
}

@override
void dispose() {
  myController.dispose();
  super.dispose();
  print('Resources released');
}

Thus, deactivate is a temporary disablement, while dispose is a final cleanup.