When i use a "Collection View" on my project, i get a issue:
Now it is gone it used to be at the orange rect:
Frame for "Collection View" will be different at run time. I don't know what I'm doing wrong. I have searched the whole internet and found nothing.
So, here is a 'solution', like the screenshot shows, you just check the header then decheck it, the issue will be gone, although, I still don't know what reason cause this happened.
Check the header of uiview content and decheck it:
