ios - 我可以将一个 UIScrollView 放在另一个 UIScrollView 中吗

Question

我有一个只能在垂直方向滚动的UIScrollView，我需要放置可以水平移动的UIScrollView，就像苹果设备中的AppStore 应用程序一样。我不想我们 UICollectionView 因为我有静态数据而且我只需要 3 个水平 UIScrollView

Answer 1

是的，你可以。作为 UIScrollView 的子类 UIView，它在添加 subview 时将按预期运行。每个 ScrollView 都将根据其 contentSize 属性启用滚动。

objective-C :

UIScrollView *horizontalScrollView = [[UIScrollView alloc] initWithFrame:CGRectMake(40.0, 40.0, 300.0, 300.0)];
horizontalScrollView.backgroundColor = [UIColor lightGrayColor];
horizontalScrollView.contentSize = CGSizeMake(2000.0, 300.0);
[self.view addSubview:horizontalScrollView];

UIScrollView *verticalScrollView = [[UIScrollView alloc] initWithFrame:CGRectMake(40.0, 40.0, 220.0, 220.0)];
verticalScrollView.backgroundColor = [UIColor greenColor];
verticalScrollView.contentSize = CGSizeMake(220.0, 2000.0);
[horizontalScrollView addSubview:verticalScrollView];

swift :

let horizontalScrollView = UIScrollView(frame: CGRectMake(40.0, 40.0, 300.0, 300.0))
horizontalScrollView.backgroundColor = UIColor.lightGrayColor()
horizontalScrollView.contentSize = CGSizeMake(2000.0, 300.0)
self.view.addSubview(horizontalScrollView)

let verticalScrollView = UIScrollView(frame: CGRectMake(40.0, 40.0, 220.0, 220.0))
verticalScrollView.backgroundColor = UIColor.greenColor()
verticalScrollView.contentSize = CGSizeMake(220.0, 2000.0)
horizontalScrollView.addSubview(verticalScrollView)