[IOS] Tips: UITableView A control in a custom cell cannot fully align the left and right boundaries of a cell

This is a very strange problem, due to some special needs, my tableview cell background color is transparent, where the control will have a background color, the first control and the last control I used the IB automatically set the constraint, align the cell's left and right boundary, But the automatic constraint is strange that the value is 8 (this value is the upper and lower left and right). Initially did not care because the display is good, but do not remember to upgrade the SDK to 8.2 or 8.3 start, left and right will be more blank.

After a variety of attempts to find a solution. The left and right constraints in the item's related to margin (in the impression of such a spell) uncheck the check, the value is set to 0.

After work and other people, Mac off No, by virtue of the memory of these words are not clear enough, there is time to revise this article.

[IOS] Tips: UITableView A control in a custom cell cannot fully align the left and right boundaries of a cell