Difficulty with UILabel width and Autolayout

Question

I feel like this is a very simple question- I've searched high and low for an answer and came up with nothing. In my UITableViewController I set the text of a UILabel of my custom UITableViewCell (made in the storyboard). I want the width of the label to be the width of the text (which is not that difficult to calculate) PLUS a constant of about 20. I cant see to find a way of setting this? Should I have to just create the UILabel programmatically? Can autolayout not help me with this issue?

Answer 1

In interface builder this will probably be impossible as you've described it. One thing you can do is specify a different value for the label's intrinsic content size. Create a mini UILabel subclass:

@interface Plus20UILabel : UILabel
@end

@implementation Plus20UILabel

-(CGSize)intrinsicContentSize{
    CGSize contentSize = [super intrinsicContentSize];
    return CGSizeMake(contentSize.width + 20, contentSize.height);
} 

@end

Then specify the label is a Plus20UILabel in IB. This will feed the new value into the AutoLayout engine and adjust the label and everything accordingly.