I have a UILabel, his text size has the property
title.adjustsFontSizeToFitWidth = YES;
that prevents me from using standard methods to resize the UILabel. I read on another post here that I'm supposed to use the function
sizeWithFont:minFontSize:actualFontSize:forWidth:lineBreakMode
from this answer: How to figure out the font size of a UILabel when -adjustsFontSizeToFitWidth is set to YES?
Now, i can't figure out how to make it work.. this is the actual code
UIFont *font = [UIFont fontWithName:@"Marker Felt" size:200];
UILabel *title = [[UILabel alloc] initWithFrame:CGRectMake(0.0, 0.0, width, 20.0)];
title.text = @"this is a long title that should be resized";
title.font = font;
title.numberOfLines = 1;
title.adjustsFontSizeToFitWidth = YES;
CGFloat pointSize = 0.0;
CGSize size = [title.text sizeWithFont:font
minFontSize:title.minimumFontSize
actualFontSize:&pointSize
forWidth:width
lineBreakMode:title.lineBreakMode];
title.frame = CGRectMake(title.frame.origin.x,
title.frame.origin.y,
size.width,
size.height);
The UILabel get resized wrongly, as if the font size it's still 200.. Any clues? Thanks!
I have some code you could use on my github, check it out, it's a category for UILabel, you need to set the frame width and when you can resizeToFit on the UILabel, it adjusts the height to fit the content, and returns the y position of the end of the label so you can adjust any content appearing after it.
https://gist.github.com/1005520
I'd suggest filing this as a bug.
The size returned by -sizeWithFont:minFontSize:actualFontSize:forWidth:lineBreakMode:
has the correct width, but not the height does not account for the actual font size.
It seems likely that UILabel
also has this bug. Changing the size of a label to match the height of the text in a font of the size returned by -sizeWithFont:minFontSize:actualFontSize:forWidth:lineBreakMode:
will incorrectly vertically position the text within the label.
A work-around is to calculate the correct height, and change the font on the label to with the actual font size:
CGFloat pointSize = 0.0f;
CGRect frame = title.frame;
frame.size = [title.text sizeWithFont:font
minFontSize:title.minimumFontSize
actualFontSize:&pointSize
forWidth:width
lineBreakMode:title.lineBreakMode];
UIFont *actualFont = [UIFont fontWithName:@"Marker Felt" size:pointSize];
CGSize sizeWithCorrectHeight = [title.text sizeWithFont:actualFont];
frame.size.height = sizeWithCorrectHeight.height;
title.frame = frame;
title.font = actualFont;
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