interface-builder - 属性检查器 : how to use "Stretching"

Question

View 子框 Interface Builder 的 Attributes Inspector 中的 Stretching 框中的数字是多少？

(作为一个附带问题 - 我想像 Apple 这样受人尊敬的公司实际上会发布其工具的文档，而不是让开发人员猜测所有内容；那么，这个文档在哪里？...)

Answer 1

这篇博文 Karol 似乎很好地解释了它。 - http://macoscope.com/blog/stretchable-images-using-interface-builder/

Stretching properties are pretty simple (I don't think so, but the articles does :).

The fraction of the original image left without stretching on the left is specified by X The fraction of the original image that gets stretched in the x-axis is specified by Width The fraction of the original image left without stretching on the right is equal to 1 – X – Width If we use 0 for Width the stretched area will interpolate between the last pixel of the left part and the first pixel of the right part The y-axis works analogously