UIPickerView添加在UITableView上滑动不灵敏

自定义一个UITableView子类，在里面直接写上这段代码

- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldReceiveTouch:(UITouch *)touch{
    UIView *view = touch.view;
    
    NSString *cellType1 = @"UIPickerTableViewWrapperCell";
    NSString *cellType2 = @"UIPickerTableViewTitledCell";
    NSString *viewDescription = [[view class] description];
    if ([viewDescription isEqualToString:cellType1] ||
        [viewDescription isEqualToString:cellType2]) {
        return NO;
    }
    return YES;
    
}