ios 将动态高度设置为 UIScrollView Swift
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Setting Dynamic Height to UIScrollView Swift
提问by Jayesh Gyanchandani
how can i set the dynamic height of UIScrollViewbased on the content/ subviews i have in my ScrollView
如何根据ScrollView 中的内容/子视图设置UIScrollView的动态高度
Here is what i am getting as output:
这是我得到的输出：
回答by Patrick R
We can use auto layout, where we use a content view in scrollview, which can be pinned to the scrollview and the height and width constraints given equal to the main view. Then if we want the height to vary dynamically we can give height constraint a low priority compared to the others and hence the content view's height will increase based on its intrinsic size, because of its sub views.
我们可以使用自动布局，我们在滚动视图中使用内容视图，它可以固定到滚动视图，并且高度和宽度约束等于主视图。然后，如果我们希望高度动态变化，我们可以给高度约束一个比其他人低的优先级，因此内容视图的高度将根据其固有大小增加，因为它的子视图。
Reference Links:
参考链接：
回答by vaibhav sharma
First you need set a subview height constraint of 0, then calculate data height (which you want to set in subview), and simply assign subview.heightConstraint.constant = data.height, then you need to set scrollView.contentsizewhich is based on subview height:
首先你需要设置一个子视图高度约束0，然后计算数据高度（你想在子视图中设置），然后简单地赋值subview.heightConstraint.constant = data.height，然后你需要设置scrollView.contentsize基于子视图高度的高度：
self.scrollView.contentSize = CGSize(width: self.scrollView.contentSize.width, height: self.subViewHeight.constant)
回答by Hattori Hanzō
for me this this trick worked (Swift 4)
对我来说，这个技巧有效（Swift 4）
scrollView.layoutIfNeeded()
scrollView.isScrollEnabled = true
scrollView.contentSize = CGSize(width: self.view.frame.width, height: scrollView.frame.size.height)
回答by Vincent
You have to calculate the needed height for your content including spacing. Assign that value as the height of the row and refresh the table (or part in it with the row)
您必须计算内容所需的高度，包括间距。将该值指定为行的高度并刷新表格（或与行一起刷新表格）
