onTapDown property
read / write
A pointer that might cause a tap has contacted the screen at a particular location.
This triggers before the gesture has won the arena, after a short timeout (deadline).
If the gesture doesn't win the arena, onTapCancel is called next. Otherwise, onTapUp is called next.
See also:
- GestureDetector.onTapDown, which exposes this callback.
Implementation
GestureTapDownCallback onTapDown