UIScrollView

// UIScrollView

    UIScrollView *scrollView = [[UIScrollView alloc]initWithFrame:CGRectMake(100, 100, 500, 300)];

    scrollView.backgroundColor = [UIColor grayColor];

    

    // 是否接收触摸事件

    scrollView.userInteractionEnabled = YES;

    

    // 是否允许滚动

    scrollView.scrollEnabled = YES;

    

    // 设置额外的滚动响应区域

    UIEdgeInsets contentInsets = UIEdgeInsetsMake(10, 10, 10, 10);

    scrollView.contentInset = contentInsets;

    

    // 隐藏滚动条

    scrollView.showsHorizontalScrollIndicator = NO;

//    scrollView.showsVerticalScrollIndicator = NO;

    

    UILabel *label = [[UILabel alloc]initWithFrame:CGRectMake(100, 150, 200, 100)];

    label.text = @"test";

    

    // 设置滚动区域

    scrollView.contentSize = CGSizeMake(label.frame.size.width, label.frame.size.height + 500);

    [scrollView addSubview:label];

    

    [self.view addSubview:scrollView];