Question

I am facing an issue in getting the correct frame for two different strings. I am running two strings through the below code:

UILabel *myLabel = [[[UILabel alloc] initWithFrame:CGRectZero] autorelease];
myLabel.lineBreakMode = UILineBreakModeWordWrap;
myLabel.numberOfLines = 2;
myLabel.textAlignment = UITextAlignmentCenter;
myLabel.font = [UIFont boldSystemFontOfSize:11];
myLabel.text = @"About Stores"
myLabel.text = @"About Rivers"

CGSize myLabelSize = CGSizeMake(70,28);
[myLabel sizeWithFont:myString.font     // <-- One of two strings
    constrainedToSize:aLabelSize 
        lineBreakMode:UILineBreakModeWordWrap];

Result for myString1 => Width: 70, Height: 28
Result for myString2 => Width: 70, Height: 14

Why there is a difference here?

Answer 1

Issues I see:

1

NSString has no font property. You might want to replace "myString.font" with UILabel.font where the UILabel is to be replaced by the instance of UILabel you plan to use to display the string.

2

sizeWithFont is supposed to return a CGSize that you store in an instance of CGSize.

Seems like you’re not very clear on using this. I’ve posted an answer on how to correctly use sizeWithFont. You should check that out here : Place two UILabels side by side left and right without knowing string length of text in left label

By the way, that’s why you see a difference in the heights… I think a garbage value is being passed in as the font size argument. If you hardcode the font size argument, you’ll see consistent results.