UIScrollView contentSize不起作用 [英] UIScrollView contentSize not working
问题描述
我在我的笔尖视图
中放了 UIScrollView
,并将其链接到 IBOutlet
属性。
I put a UIScrollView
in my nib's view
, and linked it to a an IBOutlet
property.
现在,当我在 viewDidLoad
方法中执行此操作时,它似乎对 contentSize
没有影响:
Now, when I do this in my viewDidLoad
method, it seems to have no effect on the contentSize
:
self.sv.backgroundColor = [UIColor yellowColor]; // this works
CGSize size = CGSizeMake(1000.0, 1000.0);
[self.sv setContentSize:size]; // this does not
它的行为就好像 contentSize
与框架相同。这是怎么回事?
当我关闭AutoLayout时,这开始工作。为什么?
It behaves as if the contentSize
was the same as the frame. What's going on?
This started working when I turned off AutoLayout. Why?
推荐答案
我遇到了同样的问题。 UIScrollView
的自动布局搞砸了。
I had the same problem. Auto Layout for UIScrollView
is messed up.
解决方法:将所有内容放入 UIScrollView
进入另一个 UIView
,并将 UIView
作为<$ c的唯一子项$ C>的UIScrollView 。然后你可以使用自动布局。
Work around: Put everything in the UIScrollView
into another UIView
, and put that UIView
as the only child of the UIScrollView
. Then you can use Auto Layout.
如果接近结尾的东西搞砸了(你的 UIScrollView
滚动),更改末尾的约束以获得最低优先级。
If things near the end is messed up (the end of whichever direction your UIScrollView
scrolls), change the constraint at the end to have the lowest possible priority.
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