ScrollContext constructor Null safety

1. Flutter
2. widgets
3. ScrollContext
4. ScrollContext constructor

ScrollContext class

1. Constructors
2. ScrollContext
3. Properties
4. axisDirection
5. hashCode
6. notificationContext
7. runtimeType
8. storageContext
9. vsync
10. Methods
11. noSuchMethod
12. saveOffset
13. setCanDrag
14. setIgnorePointer
15. setSemanticsActions
16. toString
17. Operators
18. operator ==