onTertiaryLongPressDown property Null safety

GestureLongPressDownCallback? onTertiaryLongPressDown
read / write

Called when a pointer has contacted the screen at a particular location with a tertiary button, which might be the start of a long-press.

This triggers after the pointer down event.

If this recognizer doesn't win the arena, onTertiaryLongPressCancel is called next. Otherwise, onTertiaryLongPressStart is called next.

See also:


GestureLongPressDownCallback? onTertiaryLongPressDown;