StackOverflow2013

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16558653
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2013-05-15T06:55:48.700
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2013-05-15T06:55:48.700
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<p>Here's how I did it. First put your label's lines in NSArray, and then check width of last line. In viewDidLoad:</p> <pre><code>NSArray* lines = [self getSeparatedLinesFromLbl:srcLabel]; NSString *lastLine=[lines lastObject]; float lastLineWidth=[lastLine sizeWithFont:srcLabel.font constrainedToSize:boundingSize lineBreakMode:NSLineBreakByWordWrapping].width; </code></pre> <p>And getSeparatedLinesFromLbl:</p> <pre><code>-(NSArray*)getSeparatedLinesFromLbl:(UILabel*)lbl { if ( lbl.lineBreakMode != NSLineBreakByWordWrapping ) { return nil; } NSMutableArray* lines = [NSMutableArray arrayWithCapacity:10]; NSCharacterSet* wordSeparators = [NSCharacterSet whitespaceAndNewlineCharacterSet]; NSString* currentLine = lbl.text; int textLength = [lbl.text length]; NSRange rCurrentLine = NSMakeRange(0, textLength); NSRange rWhitespace = NSMakeRange(0,0); NSRange rRemainingText = NSMakeRange(0, textLength); BOOL done = NO; while ( !done ) { // determine the next whitespace word separator position rWhitespace.location = rWhitespace.location + rWhitespace.length; rWhitespace.length = textLength - rWhitespace.location; rWhitespace = [lbl.text rangeOfCharacterFromSet: wordSeparators options: NSCaseInsensitiveSearch range: rWhitespace]; if ( rWhitespace.location == NSNotFound ) { rWhitespace.location = textLength; done = YES; } NSRange rTest = NSMakeRange(rRemainingText.location, rWhitespace.location-rRemainingText.location); NSString* textTest = [lbl.text substringWithRange: rTest]; CGSize sizeTest = [textTest sizeWithFont: lbl.font forWidth: 1024.0 lineBreakMode: NSLineBreakByWordWrapping]; if ( sizeTest.width > lbl.bounds.size.width ) { [lines addObject: [currentLine stringByTrimmingCharactersInSet:wordSeparators]]; rRemainingText.location = rCurrentLine.location + rCurrentLine.length; rRemainingText.length = textLength-rRemainingText.location; continue; } rCurrentLine = rTest; currentLine = textTest; } [lines addObject: [currentLine stringByTrimmingCharactersInSet:wordSeparators]]; return lines; } </code></pre>
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1. This table or related slice is empty.
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1. POiOS. Determine last line width of UILabel
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1. PTAnswer
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1. USWojczitsu
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