NSMutableParagraphStyle with NSMutableAttributedString

Question

我有一个段落，我使用NSMutableParagraphStyle来管理行高。此外，我想改变一个词的颜色在段落中，这是我使用的代码，但它只是改变一个词的颜色(attributedText是覆盖)我怎么能修复它??任何帮助吗?

NSMutableParagraphStyle *paragraphStyle = [[NSMutableParagraphStyle alloc] init];
paragraphStyle.lineHeightMultiple = 1.45f;
paragraphStyle.alignment = UITextAlignmentRight;
NSDictionary *ats = @{
                      NSFontAttributeName            : [UIFont fontWithName:@"Helvetica"
                                                                      size:currentSize],
                      NSParagraphStyleAttributeName  : paragraphStyle,
                      };

ayaTxt.attributedText    = [[NSAttributedString alloc] initWithString:ayaTxt.text
                                                             attributes:ats];
NSMutableAttributedString *attrString = [[NSMutableAttributedString alloc]
                                         initWithString:ayaTxt.text];
NSRange range = [[AyatWords objectAtIndex:aya] rangeOfString:@":"];
[attrString addAttribute:NSForegroundColorAttributeName
                   value:[UIColor colorWithRed:(25.0/255.0)
                                         green:(168.0/255.0)
                                          blue:(167.0/255.0)
                                         alpha:1.0]
                   range:NSMakeRange(0, range.location + 1)];
ayaTxt.attributedText = attrString;

谢谢. .

Answer 1

我解决了

NSMutableAttributedString *as = [[NSMutableAttributedString alloc] initWithString:wordsTxt.text];
NSRange range = [[AyatWords objectAtIndex:aya] rangeOfString:@":"];
NSRange wholeRange = NSMakeRange(0, as.length);
[as addAttribute:NSForegroundColorAttributeName
                   value:[UIColor colorWithRed:(25.0/255.0)
                                         green:(168.0/255.0)
                                          blue:(167.0/255.0)
                                         alpha:1.0]
                   range:NSMakeRange(0, range.location + 1)];
[as addAttribute:NSFontAttributeName value:[UIFont systemFontOfSize:currentSize]
                                     range:wholeRange];
NSMutableParagraphStyle *ps = [[NSParagraphStyle defaultParagraphStyle] mutableCopy];
ps.lineHeightMultiple = 1.45f;
ps.alignment = UITextAlignmentRight;

[as addAttribute:NSParagraphStyleAttributeName value:ps range:wholeRange];
wordsTxt.attributedText = as;