Objective c uilabel width based on text length - objective-c

Question

I want to set the width of the uilabel based on the text length and then on top of that make it a little bit wider. The text might be different so I cannot just predefine the width of the uilabel. My approach to this is to get the width of the text and then add another 10.0 to it but it doesn't work.
CGSize tSize = [[self.label1 text] sizeWithAttributes:#{NSFontAttributeName:[self.label1 font]}];
CGFloat tWidth = tSize.width + 10.0;
self.label1.frame = CGRectMake(self.label1.frame.origin.x, self.label1.frame.origin.y, tWidth, self.label1.frame.size.height);
self.label1.backgroundColor = [UIColor blueColor];
Any advice is much appreciated.

Answer 1

You might want to use [yourLabel sizeToFit]; or [yourLabel sizeThatFits: <#your target size#>];
sizeToFit resizes your label within it's current frame.size according to it's current text , font and the numberOfLines you provided.
Then you can change the size
[yourLabel sizeToFit];
CGRect rect = yourLabel.frame;
rect.size.width += 10;
yourLabel.frame = rect;
sizeThatFits:(CGSize)size doesn't resize your label but it returns the size that fits the size you pass as parameter.
sizeToFit uses sizeThatFits:(CGSize)size internally.
You can change size by doing this
CGSize exampleSize = (CGSize){300, 300};
CGSize fittingSize = [yourLabel sizeThatFits: exampleSize];
CGRect rect = yourLabel.frame;
rect.size.width = fittingSize.width;
rect.size.height = fittingSize.height;
yourLabel.frame = rect;
This should be working fine even if you are working with yourLabel.attributedText