May Yang May Yang - 2 years ago 189
iOS Question

How to bold some words in my UITextView using NSMutableAttributedString?

I have a UITextView and there are certain words I'm casting with NSString stringWithFormat that I'd like to be bolded.

I have looked around Stack Overflow and tried to follow the the postings but I guess I'm not understanding it.

Here's what I've been playing around with:

NSRange boldedRange = NSMakeRange(0, 4);
NSString *boldFontName = [[UIFont fontWithName:@"Helvetica-Bold" size:100]fontName];

NSMutableAttributedString *attrString = [[NSMutableAttributedString alloc]];

[attrString beginEditing];
[attrString addAttribute:NSFontAttributeName
[attrString endEditing];

self.resultsTextView.attributedText = attrString;

self.resultsTextView.text = [NSString stringWithFormat:@"One day, %@ was taking a walk and saw a %@ boy. He was %@ a %@.", attrString, self.adjective, self.adverb, self.noun];

Answer Source

You can also set it the following way if you want by setting a dictionary as a whole, as attribute

NSString *strTextView = @"This is some demo Text to set BOLD";

NSRange rangeBold = [strTextView rangeOfString:@"BOLD"];

UIFont *fontText = [UIFont boldSystemFontOfSize:10];
NSDictionary *dictBoldText = [NSDictionary dictionaryWithObjectsAndKeys:fontText, NSFontAttributeName, nil];

NSMutableAttributedString *mutAttrTextViewString = [[NSMutableAttributedString alloc] initWithString:strTextView];
[mutAttrTextViewString setAttributes:dictBoldText range:rangeBold];

[textViewTermsPolicy setAttributedText:mutAttrTextViewString];
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