var count = 0let attributedText = NSMutableAttributedString(attributedString: txtMetin2.attributedText)let text2 = txtarama.text as Nsstringlet text = txtMetin2.text as Nsstringvar range:NSRangevar checker:Nsstring = ""for(var i=0 ; i<text.length - text2.length-1 ; i++){ range = NSMakeRange(i,text2.length) checker = text.substringWithRange(range) if(text2 == checker) { count++ let highlightedRange = text.rangeOfString("\(text2)") attributedText.addAttribute(NSBackgroundcolorAttributename,value: UIcolor.bluecolor(),range: highlightedRange) let textAttachment = NSTextAttachment() let textAttachmentString = NSAttributedString(attachment: textAttachment) attributedText.appendAttributedString(textAttachmentString) txtMetin2.attributedText = attributedText }}println("\(count)")
我很快就是新人.抱歉编码不好.我的代码找到匹配数,但我怎么能突出所有匹配谢谢你
基于强制性 NSRegularExpression的解决方案.let searchString = "this"let baseString = "This is some string that contains the word \"this\" more than once. This substring has multiple cases. ThisthisThIs."let attributed = NSMutableAttributedString(string: baseString)var error: NSError?let regex = NSRegularExpression(pattern: searchString,options: .CaseInsensitive,error: &error)if let regexError = error { println("Oh no! \(regexError)")} else { for match in regex?.matchesInString(baseString,options: NSMatchingOptions.allZeros,range: NSRange(location: 0,length: baseString.utf16Count)) as [NSTextCheckingResult] { attributed.addAttribute(NSBackgroundcolorAttributename,value: UIcolor.yellowcolor(),range: match.range) } textVIEw.attributedText = attributed}总结
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