问题描述
这答案：是适合我的问题有些程度。我需要的是有我的容器视图三视图。
This answer: http://stackoverflow.com/a/25898949/1364053 is suitable for my problem to some extent. What I need is there are three views in my container view.
，中间的是一个滚动视图。如果我的脚这三个观点的高度和宽度，并在上面的链接描述的使用比例法，一切工作正常。
The middle one is a scroll view. If I pin height and width of all three views and use the ratio method as described in the above link, all works fine.
但我需要中间的滚动型成长到一定程度，假设滚动视图的当前高度是30，如果设备高度增加它应该长到40最大，但不多说（小于=约束）。
But I need the middle scrollview to grow to some extent, let's say the current height of the scroll view is 30, If the device height is increased it should grow to a max of 40 but not more than that (<= constraint).
Ok..So我试图给两个约束到中间视图。的＆lt; =约束具有比=约束（250）更高先决（750）..但是当屏幕尺寸增大..高度保持不变。
Ok..So I tried giving two constraints to the middle view. The <= constraint has higher priorty (750) than the = constraint (250).. but when the screen size is increased.. the height stays the same.
推荐答案
上传的厦门国际银行可能会帮助你。
Sample.xibThe uploaded xib might help you.
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