onSecondaryLongPressStart property Null safety

GestureLongPressStartCallback? onSecondaryLongPressStart
final

Called when a long press gesture with a secondary button has been recognized.

Triggered when a pointer has remained in contact with the screen at the same location for a long period of time.

See also:

Implementation

final GestureLongPressStartCallback? onSecondaryLongPressStart;