TapRegionRegistry constructor Null safety

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

TapRegionRegistry class

1. Constructors
2. TapRegionRegistry
3. Properties
4. hashCode
5. runtimeType
6. Methods
7. noSuchMethod
8. registerTapRegion
9. toString
10. unregisterTapRegion
11. Operators
12. operator ==
13. Static methods
14. maybeOf
15. of