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POUILabels not overlaying correctly in UITextView
 

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    <p>I'm trying to add syntax highlighting to my program.<br>I'm using this code to add highlights:</p> <pre><code>-(void)highlightWord:(NSString *)word: (UIColor *)color { int amount = textDisplay.text.length; NSString *newString = textDisplay.text; NSUInteger count = 0, length = amount; NSRange range = NSMakeRange(0, length); while(range.location != NSNotFound) { range = [textDisplay.text rangeOfString: word options:NSLiteralSearch range:range]; if(range.location != NSNotFound) { range = NSMakeRange(range.location + range.length, length - (range.location + range.length)); count++; } } while (count != 0) { count--; NSRange highlight = [newString rangeOfString:word]; newString = [textDisplay.text stringByReplacingCharactersInRange:highlight withString:@" "]; UILabel *view1 = [[UILabel alloc] initWithFrame:[self frameOfTextRange:highlight inTextView:textDisplay]]; view1.text = word; view1.textColor = color; view1.font = [UIFont fontWithName:@"System" size: 14.0]; view1.backgroundColor = [UIColor clearColor]; view1.textAlignment = UITextAlignmentLeft; [textDisplay addSubview:view1]; } } - (IBAction)highlighString:(id)sender { for (UIView *subview in [textDisplay subviews]){ if ([subview isKindOfClass:[UILabel class]]){ [subview removeFromSuperview]; } } [self highlightWord:@"test" :[UIColor blueColor]]; [self highlightWord:@"this" :[UIColor redColor]]; [self highlightWord:@"is" :[UIColor grayColor]]; [self highlightWord:@"a" :[UIColor greenColor]]; } @end </code></pre> <p>But this seems to cause a weird results:<br> <img src="https://i.stack.imgur.com/aJ34V.png" alt="..."> </p> <p><br>The desired result would be that it overlays to colored label seamlessly.</p>
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    1. COThrowing a label (which may have a different font or attributes on that font) over a UITextView is always going to be clunky and/or risky. Why not use [a UITextView replacement that allows for attributed strings](http://stackoverflow.com/a/8961839/981049)?
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      1. USMichael Dautermann
    2. COI'de go with the except I *need* copy and paste, but if all else fails I can use this.
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    3. COYour method of doing this is too complex. Let me direct you to --> http://stackoverflow.com/questions/2218415/nstextview-syntax-highlighting Using Attributed Strings
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      1. USiOS Calendar View OnMyProfile
 

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