onTapUp method
Implementation
GestureDetector onTapUp(ValueChanged<dynamic> onTapUp) => GestureDetector(
child: this,
onTapUp: onTapUp,
);
GestureDetector onTapUp(ValueChanged<dynamic> onTapUp) => GestureDetector(
child: this,
onTapUp: onTapUp,
);