onSecondaryTapCancel property Null safety

GestureTapCancelCallback? onSecondaryTapCancel
final

The pointer that previously triggered onSecondaryTapDown will not end up causing a tap.

This is called after onSecondaryTapDown, and instead of onSecondaryTapUp, if the tap gesture did not win.

See also:

Implementation

final GestureTapCancelCallback? onSecondaryTapCancel;