So I have a UITableView in a .xib file. That’s all that’s in it.
In the cellForRowAtIndexPath method, I use a custom UITableViewCell. The UITableViewCell width in IB is 320.
I dropped in a UISegmentedControl and centered it per the blue guide lines. When I present the table in a popover, the UISegmentedControl in the UITableViewCell is not centered. It’s like the UITableViewCell gets cut off. I included a picture.
Is there something that I am forgetting in the sizes of things? I have another 4 segmented control where although the segmented control shows in the UITableViewCell, it is cut off. My contenstSizeForPopover is set to 320 for the width also.

When you put the cell into a group table view, the cell makes its content area 20 points narrower to allow for table border/background area. That’s why your controls are getting cut off.
You can probably just set your controls to have flexible width:
but you’ll have to keep the resizing in mind when you design your cell layout.