更改NSMutableAttributedString中链接的颜色

时间:2015-02-06 07:59:35

标签: ios iphone nsattributedstring nsmutableattributedstring

我有以下代码,但我的链接始终是蓝色的。我如何塑造它们的颜色?

[_string addAttribute:NSLinkAttributeName value:tag range:NSMakeRange(position, length)];
[_string addAttribute:NSFontAttributeName value:[UIFont fontWithName:@"HelveticaNeue-Bold" size:(12.0)] range:NSMakeRange(position, length)];
[_string addAttribute:NSStrokeColorAttributeName value:[UIColor greenColor] range:NSMakeRange(position, length)];

_string是一个NSMutableAttributedString,位置和长度工作正常。

5 个答案:

答案 0 :(得分:127)

夫特

针对Swift 4.2进行了更新

linkTextAttributesUITextView

一起使用
textView.linkTextAttributes = [NSAttributedString.Key.foregroundColor: UIColor.green]

在上下文中:

let attributedString = NSMutableAttributedString(string: "The site is www.google.com.")
let linkRange = (attributedString.string as NSString).range(of: "www.google.com")
attributedString.addAttribute(NSAttributedString.Key.link, value: "https://www.google.com", range: linkRange)
let linkAttributes: [NSAttributedString.Key : Any] = [
    NSAttributedString.Key.foregroundColor: UIColor.green,
    NSAttributedString.Key.underlineColor: UIColor.lightGray,
    NSAttributedString.Key.underlineStyle: NSUnderlineStyle.single.rawValue
]

// textView is a UITextView
textView.linkTextAttributes = linkAttributes
textView.attributedText = attributedString

的Objective-C

linkTextAttributesUITextView

一起使用
textView.linkTextAttributes = @{NSForegroundColorAttributeName:[UIColor greenColor]};

来源:this answer

来自this post

NSMutableAttributedString *attributedString = [[NSMutableAttributedString alloc] initWithString:@"This is an example by @marcelofabri_"];
[attributedString addAttribute:NSLinkAttributeName
                         value:@"username://marcelofabri_"
                         range:[[attributedString string] rangeOfString:@"@marcelofabri_"]];


NSDictionary *linkAttributes = @{NSForegroundColorAttributeName: [UIColor greenColor],
                                 NSUnderlineColorAttributeName: [UIColor lightGrayColor],
                                 NSUnderlineStyleAttributeName: @(NSUnderlineStyleSingle)};

// assume that textView is a UITextView previously created (either by code or Interface Builder)
textView.linkTextAttributes = linkAttributes; // customizes the appearance of links
textView.attributedText = attributedString;
textView.delegate = self;

答案 1 :(得分:34)

链接颜色是标签/ textView的着色颜色。因此,您可以通过更改视图的色调颜色来更改它。但是,如果您想在同一视图中使用不同的链接颜色,则无法使用此功能。

答案 2 :(得分:6)

夫特

 let str = "By using this app you agree to our Terms and Conditions and Privacy Policy"
 let attributedString = NSMutableAttributedString(string: str)
 var foundRange = attributedString.mutableString.rangeOfString("Terms and Conditions")

 attributedString.addAttribute(NSLinkAttributeName, value: termsAndConditionsURL, range: foundRange)
 foundRange = attributedString.mutableString.rangeOfString("Privacy Policy")
 attributedString.addAttribute(NSLinkAttributeName, value: privacyURL, range: foundRange)
 policyAndTermsTextView.attributedText = attributedString
 policyAndTermsTextView.linkTextAttributes = [NSForegroundColorAttributeName : UIColor.blueColor()]

答案 3 :(得分:1)

 NSAttributedString* attributedString = [[NSAttributedString alloc] initWithString:@"here" attributes:@{ @"myCustomTag" : @(YES), NSForegroundColorAttributeName:[UIColor whiteColor], NSFontAttributeName:[UIFont fontWithName:@"SourceSansPro-Semibold" size:15], NSUnderlineStyleAttributeName : @(NSUnderlineStyleSingle) }];

目标-C

这将使带下划线的白色可点击文字成为可能。为您的代码选择必要的属性并使用它。

要在其中包含带有可点击链接的字符串,请执行下一步:

NSMutableAttributedString *string = [[NSMutableAttributedString alloc] initWithString:@"Click " attributes:@{NSForegroundColorAttributeName:[UIColor whiteColor], NSFontAttributeName:[UIFont fontWithName:@"SourceSansPro-Semibold" size:15]}];
NSAttributedString* attributedString = [[NSAttributedString alloc] initWithString:@"here" attributes:@{ @"myCustomTag" : @(YES), NSForegroundColorAttributeName:[UIColor whiteColor], NSFontAttributeName:[UIFont fontWithName:@"SourceSansPro-Semibold" size:15], NSUnderlineStyleAttributeName : @(NSUnderlineStyleSingle) }];
[string appendAttributedString:attributedString];

因此,您将获得字符串“点击此处”,“此处”将是一个链接。您可以为每个字符串设置不同的样式。

答案 4 :(得分:1)

对于swift3.0

IObjectStringKey