1. Constructors
  2. Widget
  3. Properties
  4. hashCode
  5. key
  6. runtimeType
  7. Methods
  8. createElement
  9. debugDescribeChildren
  10. debugFillProperties
  11. noSuchMethod
  12. toDiagnosticsNode
  13. toString
  14. toStringDeep
  15. toStringShallow
  16. toStringShort
  17. Operators
  18. operator ==
  19. Static methods
  20. canUpdate