问题
I use autolayout on xib to create my UI.
When I finish my UI. It work well on simulator.
But when I open Xcode8 next time, the xib show strange.
Some UIView and UIImageView become big.
The size become (1000, 1000)

Even so, when I run on simulator, it look well.
But the xib cannot be modify easily.
I try to update the frame. It become worse

How should I deal with it?
回答1:
It's Xcode8's issues. And that is fixed in Xcode8.1 beta2.
Xcode 8.0 did not always restore view frames from storyboards and xibs when layouts were ambiguous. Xcode 8.1 fixes several of these issues. If you have encountered these issues, resolve the ambiguity in the Auto Layout issues and update frames. Xcode 8.1 will persist them correctly. (28221021, 28244619)
Details can be found in release notes
来源:https://stackoverflow.com/questions/40081149/the-size-of-uiview-uiimageview-on-xibxcode8-become-1000-1000