UITextView归因颜色未应用 - iOS [英] UITextView attributed colour not being applied - iOS

问题描述

我有一个UITextView显示tweets。一些tweet有hashtag。我发现一个很好的答案StackOverflow，它允许我识别的标签，然后应用一种颜色。然而，我的UITextView的属性Text属性没有被应用....出于某种原因。这是我的代码：

  NSString * message = final_data [index] 
 NSArray * words = [message componentsSeparatedByString：@]; 
 NSMutableAttributedString * attrString = [[NSMutableAttributedString alloc] initWithString：message]; 
 
 for（NSString * word in words）{
 
 if（[word hasPrefix：@＃]）{
 
 NSRange matchRange = message rangeOfString：word]; 
 [attrString addAttribute：（__ bridge NSString *）kCTForegroundColorAttributeName value：[UIColor blueColor] range：matchRange]; 
} 
} 
 
 cell_tw.message_post.attributedText = attrString; 
  

message_post是我在UITableview中的自定义单元格中的UITextView。

我虽然attributText属性的整个点是你可以设置这些种类的设置，如文本颜色。

感谢您的时间：）

解决方案

$ b <

  [attrString setAttributes：[NSDictionary dictionaryWithObject：[UIColor blueColor] forKey：NSForegroundColorAttributeName] range：[message rangeOfString ：字]]; 
  

谢谢！

I have a UITextView which displays tweets. Some tweets have hashtags. I found a great answer on StackOverflow which allows me to identify the hashtag and then apply a colour to it. However the attributedText property of my UITextView is not being applied.... for some reason. Here is my code:

NSString *message = final_data[index];
NSArray *words = [message componentsSeparatedByString:@" "];
NSMutableAttributedString *attrString = [[NSMutableAttributedString alloc] initWithString:message];

            for (NSString *word in words) {

                if ([word hasPrefix:@"#"]) {

                    NSRange matchRange = [message rangeOfString:word];
                    [attrString addAttribute:(__bridge NSString *)kCTForegroundColorAttributeName value:[UIColor blueColor] range:matchRange];
                }
            }

            cell_tw.message_post.attributedText = attrString;

"message_post" is my UITextView in my Custom Cell in my UITableview.

I though the whole point of the attributedText property is so you can set these kinds of settings such as text colour.

What is going wrong here?

Thanks for you're time :)

解决方案

have you tried this?

    [attrString setAttributes:[NSDictionary dictionaryWithObject:[UIColor blueColor] forKey:NSForegroundColorAttributeName] range:[message rangeOfString:word]];

Thanks!

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