GestureTapDragDownCallback typedef
Signature for when a pointer that might cause a tap has contacted the screen.
The position at which the pointer contacted the screen is available in the
details
.
The consecutive tap count at the time the pointer contacted the screen is given by TapDragDownDetails.consecutiveTapCount.
Implementation
typedef GestureTapDragDownCallback = void Function(TapDragDownDetails details);