onTapDown method
Implementation
@mustCallSuper
void onTapDown(int pointerId, TapDownInfo info) {
_handleTapEvent((Tappable child) => child.handleTapDown(pointerId, info));
}
@mustCallSuper
void onTapDown(int pointerId, TapDownInfo info) {
_handleTapEvent((Tappable child) => child.handleTapDown(pointerId, info));
}