在他们的父类试图重写该函数
//- (UIView *)hitTest:(CGPoint)point withEvent:(UIEvent *)event {
//
// UIButton *firstButton = (UIButton *) [self viewWithTag:1];
// CGPoint pointInB = [firstButton convertPoint:point fromView:self];
//
// if ([firstButton pointInside:pointInB withEvent:event])
// return firstButton;
//
// return [super hitTest:point withEvent:event];
//
//
//}