如何使用NSMutableAttributedString在我的UITextView中加粗一些单词？

Question

我有一个UITextView,并且我正在使用NSString stringWithFormat投射某些单词,我想加粗.

我已经浏览了Stack Overflow并试图关注帖子,但我想我不理解它.

这是我一直在玩的东西:

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


    NSMutableAttributedString *attrString = [[NSMutableAttributedString alloc] initWithString:self.name];

    [attrString beginEditing];
    [attrString addAttribute:NSFontAttributeName
                       value:boldFontName
                       range:boldedRange];
    [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 1

如果要将字典作为整体设置为属性,也可以按照以下方式进行设置

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];

Answer 2

使用以下代码在TextView中设置属性字符串.

    NSString *infoString =@"I am Kirit Modi from Deesa.";

    NSMutableAttributedString *attString=[[NSMutableAttributedString alloc] initWithString:infoString];

    UIFont *font_regular=[UIFont fontWithName:@"Helvetica" size:20.0f];
    UIFont *font_bold=[UIFont fontWithName:@"Helvetica-Bold" size:20.0f];

    [attString addAttribute:NSFontAttributeName value:font_regular range:NSMakeRange(0, 4)];

    [attString addAttribute:NSFontAttributeName value:font_bold range:NSMakeRange(5, 15)];

    [attString addAttribute:NSFontAttributeName value:font_regular range:NSMakeRange(16, infoString.length - 15 - 1)];

    [self.txtView setAttributedText:attString];

OutPut: