onDoubleTapDown property Null safety
final
Called after a momentary hold or a short tap that is close in space and time (within kDoubleTapTimeout) to a previous short tap.
Implementation
final GestureTapDownCallback? onDoubleTapDown;
Called after a momentary hold or a short tap that is close in space and time (within kDoubleTapTimeout) to a previous short tap.
final GestureTapDownCallback? onDoubleTapDown;