Question

我正在尝试添加指向UITextViews的链接，因此我正在关注this post中的代码。相关的Objective-C代码是

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

但是当我在Swift 2中尝试这个时

var attributedString = NSMutableAttributedString(string: "This is an example by @marcelofabri_")
attributedString.addAttribute(NSLinkAttributeName, value: "username://marcelofabri_", range: attributedString.string.rangeOfString("/marcelofabri_"))

我收到错误

无法调用＆＃39; addAttribute＆＃39;使用类型＆＃39;的参数列表（字符串，值：字符串，范围：范围？）＆＃39;

我需要更改什么才能让它发挥作用？

Answer 1

尝试使用NSString查找范围而不是Swift String：

var attributedString = NSMutableAttributedString(string: "This is an example by @marcelofabri_")
attributedString.addAttribute(NSLinkAttributeName, value: "username://marcelofabri_", range: (attributedString.string as NSString).rangeOfString("/marcelofabri_"))

如何在Swift中使用addAttribute

1 个答案: