ScaffoldState constructor Null safety

1. Flutter
2. material
3. ScaffoldState
4. ScaffoldState constructor

ScaffoldState class

1. Constructors
2. ScaffoldState
3. Properties
4. appBarMaxHeight
5. bucket
6. context
7. hasAppBar
8. hasDrawer
9. hasEndDrawer
10. hasFloatingActionButton
11. hashCode
12. isDrawerOpen
13. isEndDrawerOpen
14. mounted
15. restorationId
16. restorePending
17. runtimeType
18. widget
19. Methods
20. activate
21. build
22. closeDrawer
23. closeEndDrawer
24. createTicker
25. deactivate
26. debugFillProperties
27. didChangeDependencies
28. didToggleBucket
29. didUpdateRestorationId
30. didUpdateWidget
31. dispose
32. initState
33. noSuchMethod
34. openDrawer
35. openEndDrawer
36. reassemble
37. registerForRestoration
38. restoreState
39. setState
40. showBodyScrim
41. showBottomSheet
42. toDiagnosticsNode
43. toString
44. toStringShort
45. unregisterFromRestoration
46. Operators
47. operator ==