Results 2 issues of wangci

有没有方法可行的,现在要做满足一定条件的时候用户才能滑动到下一页面

UIView * backView = [[UIView alloc] initWithFrame:CGRectMake(50, 0, 100, 30)]; backView.backgroundColor = [UIColor yellowColor]; self.tabBar.progressView = backView;