Details object for callbacks that use GestureDragEndCallback.
- primaryVelocity → double
The velocity the pointer was moving along the primary axis when it stopped
contacting the screen, in logical pixels per second. [...]
- velocity → Velocity
The velocity the pointer was moving when it stopped contacting the screen. [...]
- hashCode → int
The hash code for this object. [...]
- runtimeType → Type
A representation of the runtime type of the object.