12

我有一个 UITextView 并且有一些我想用 NSString stringWithFormat 加粗的单词。

我环顾了 Stack Overflow 并尝试关注这些帖子，但我想我不明白。

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];
4

4 回答 4

21

如果需要，您也可以通过将字典作为一个整体设置为属性来设置它

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];
于 2015-01-17T07:31:03.653 回答
6

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];

输出 ：

在此处输入图像描述

于 2015-01-17T07:32:31.000 回答
0

如果您还需要从 UITextView 中过滤一些单词并使其下划线/更改该特定文本的颜色，那么您可以使用下面的代码。

在这里，我得到了 Content 字符串中的所有文档文本，并过滤了一些希伯来语的特定文本。

NSMutableAttributedString *aStr = [[NSMutableAttributedString alloc]initWithString:content attributes:nil];
[aStr addAttribute:NSLinkAttributeName value:@"http://www.apple.com" range:[content rangeOfString:@"מדיניות פרטיות"]];
[aStr addAttribute:NSLinkAttributeName value:@"http://www.google.com" range:[content rangeOfString:@"לינק"]];
textview.linkTextAttributes = @{NSUnderlineStyleAttributeName : @(NSUnderlineStyleSingle)};
textview.delegate = (id)self;

//...您可以根据您的自定义颜色

[aStr addAttribute:NSForegroundColorAttributeName value:[UIColor redColor] range:[content rangeOfString:@"מדיניות פרטיות"]];
[aStr addAttribute:NSForegroundColorAttributeName value:[UIColor redColor] range:[content rangeOfString:@"לינק"]];

//在这里您还可以在该文本上添加点击手势。//点击手势

UITapGestureRecognizer *tapRecognizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(tappedTextView:)];
             [textview addGestureRecognizer:tapRecognizer];
             [textview setAttributedText:aStr];
             textview.textAlignment=NSTextAlignmentRight;

//用于获取点击手势中的文本位置

-(void)tappedTextView:(UITapGestureRecognizer *)tapGesture

{
    UITextView *textView = (UITextView *)tapGesture.view;
    CGPoint tapLocation = [tapGesture locationInView:textView];
    UITextPosition *textPosition = [textView closestPositionToPoint:tapLocation];
    NSDictionary *attributes = [textView textStylingAtPosition:textPosition inDirection:UITextStorageDirectionForward];
    NSString *urlStr = attributes[NSLinkAttributeName];
    if (urlStr)

    {
        //[[UIApplication sharedApplication] openURL:[NSURL URLWithString:[NSString stringWithFormat:@"%@",url]]];

        PrivacyViewController *next = [PrivacyViewController new];
        [self.navigationController pushViewController:next animated:YES];
    }
}
于 2018-01-25T06:31:28.987 回答
0

在上一个 SO 问题3586871上查看 @CrazyYoghurt 对 @Bbrame 和 @BenoitJadinon 的改进， 我已经使用它一年多了，效果很好。一个限制：如果同一字符串在原始字符串中出现多次，我认为您不能多次加粗。但是，如果您愿意，您可能可以扩展代码来实现它。

于 2016-05-24T17:42:01.917 回答