nsattributedstring

问题 eg. Like we have a NSAttributed string and we need to separate string and attributes, then use these attributes on other string of same length. 回答1: An NSAttributedString may have different attributes for different ranges of the string. To extract these attributes, you can use the enumerateAttributesInRange method. We prepare an array of tuples to hold the results: var extractedAttributes = [(attributes: [String:AnyObject], range: NSRange)]() Each tuple will hold the attributes for a specific

问题 Trying to set my UIText view's attributed text properties via selection. Almost works. Action to set text with red font color below. This works sometimes, but often gives an error: Terminating app due to uncaught exception 'NSRangeException', reason: 'NSMutableRLEArray objectAtIndex:effectiveRange:: Out of bounds' This happens even while there seems to be many more characters in the text view than indicated by the selected range. - (IBAction)setText:(id)sender { NSMutableAttributedString *

问题 I have NSTextView and I can have text as nsattributedstring. I can save text into .txt file using NSSavePanel, as plain text, but not as formatted text. @IBAction func saveDNA(sender: AnyObject) { let saveDNAtoFile: NSSavePanel = NSSavePanel() saveDNAtoFile.canSelectHiddenExtension = true saveDNAtoFile.runModal() do { let exportedFileURL = saveDNAtoFile.URL let textDNA = self.inputDnaFromUser.string if exportedFileURL != nil { try textDNA!.writeToURL(exportedFileURL!, atomically: false,

问题 Underling a string only works when the range starts from zero. If i start it at 1 then it works. The green colour works regardless. + (NSAttributedString*)returnNSAttributedString:(NSString*)string range:(NSRange)range WithColour:(UIColor*)colour WithUnderLine:(BOOL)underline { NSMutableAttributedString *attributedString = [[NSMutableAttributedString alloc] initWithString:string]; if (underline) { [attributedString addAttributes:@{NSUnderlineStyleAttributeName: @(NSUnderlineStyleSingle)}

问题 I'm trying to add a dotted underline style to an NSAttributedString (on iOS7+/TextKit). Of course, I tried the built-in NSUnderlinePatternDot : NSString *string = self.label.text; NSRange underlineRange = [string rangeOfString:@"consetetur sadipscing elitr"]; NSMutableAttributedString *attString = [[NSMutableAttributedString alloc] initWithString:string]; [attString addAttributes:@{NSUnderlineStyleAttributeName: @(NSUnderlineStyleSingle | NSUnderlinePatternDot)} range:underlineRange]; self

问题 I need to set two attributes to a text presented by a UILabel : spacing between letters (kern), and its strikethrough style. Based on the NSAttributedStringKey documentation I have created the following extension to the UILabel : extension UILabel { func setStrikeThroughSpacedText(text: String, kern: CGFloat?) { var attributes: [NSAttributedStringKey : Any] = [:] if let kern = kern { attributes[.kern] = kern } attributes[.strikethroughStyle] = NSNumber(integerLiteral: NSUnderlineStyle

问题 I have a uilabel in tableviewcell ,and the label use NSAttributeString to support both image and text. But I found when the label contains image or text only , the height of label is correct ,but when label contains image and text both ,the height seems not correct .the row height seems little more big than the actual height need and if there is text or images only ,the height is right and I was using my Own subclass from NSTextAttachment to construct image and the attachment code is like

问题 I need to add some tapGestures to some part of a text, thats in a UILabel. It seems to be able to make a hyperlink - so I guess its possible to make a functioncall as well, but I'm just not sure how to do it. Heres my code: let regularFont = UIFont(name: Constants.robotoRegular, size: 13)! let att1 = [NSFontAttributeName: regularFont] let turqoiseFont = UIFont(name: Constants.robotoBold, size: 13)! let att2 = [NSFontAttributeName: turqoiseFont] let attString1 = NSMutableAttributedString

问题 When creating an NSAttributedString from HTML, using NSHTMLTextDocumentType , I'm finding it will add an \n for each paragraph even after the last paragraph. This is adding undesired padding underneath the last paragraph of text that's shown in a UILabel . How does one remove that extra padding for the last paragraph only? NSString *style = @"<style> body { font-family: Avenir; font-size: 18px; color: blue; } p:last-of-type { margin: 0; }</style>"; NSString *html = @"<p>A whole bunch of

问题 I have an app which uses NSTextAlignmentJustified for an NSAttributedString . In iOS 6 everything is working great. But the same App running in iOS 7 (simulator or device makes no difference) is showing no Justify at all. Also the linespacing seems to have changed dramatically from iOS 6 to 7 . Anyone else encountered this problem? Is there any way to make a justified Textblock in iOS 7 (which works in iOS 6 too?) Regards, Markus 回答1: Ok, i kind of found a way to make the label Justifiy in