How can I find the actual number of lines of a UILabel
after I have initialized it with a text
and a font
? I have set its numberOfLines
property to 0
, so it will expand to however many lines are necessary. But then, how can I find out how many lines it finally got after I set its text
?
I found similar questions, but none seems to provide a concise answer and it seems to me that it must be really easy to get it without any overhead on juggling around with the boundingRectWithSize
or sizeWithFont
,...
First Option :
Firstly calculate height for text according to font :
NSInteger lineCount = 0;
CGSize labelSize = (CGSize){yourLabel.frame.size.width, MAXFLOAT};
CGRect requiredSize = [self boundingRectWithSize:labelSize options:NSStringDrawingUsesLineFragmentOrigin attributes:@{NSFontAttributeName: yourLabel.font} context:nil];
Now calculate number of lines :
int charSize = lroundf(yourLabel.font.lineHeight);
int rHeight = lroundf(requiredSize.height);
lineCount = rHeight/charSize;
NSLog(@"No of lines: %i",lineCount);
Second Option :
NSInteger lineCount = 0;
CGSize textSize = CGSizeMake(yourLabel.frame.size.width, MAXFLOAT);
int rHeight = lroundf([yourLabel sizeThatFits:textSize].height);
int charSize = lroundf(yourLabel.font.lineHeight);
lineCount = rHeight/charSize;
NSLog(@"No of lines: %i",lineCount);