core-text

I have a UITextView and when the user is entering text into it, I want to format the text on the fly. Something like syntax highlighting... For that I'd like to use UITextView ... Everything works fine expect one problem: I take the text from the text view and make an NSAttributedString from of it. I make some edits to this attributed string and set it back as the textView.attributedText . This happens everytime the user types. So I have to remember the selectedTextRange before the edit to the attributedText and set it back afterwards so that the user can continue typing at the place he was

I need a UILabel subcass with multiline attributed text with support for links, bold styles, etc. I also need tail truncation with an ellipsis. None of the open source code that supports attributed text inside UILabels ( TTTAttributedLabel , OHAttributedLabel , TTStyledTextLabel ) seem to support tail truncation for multi-line text. Is there an easy way to get this? Hi I am the developer of OHAttributedLabel . There is no easy way to achieve this (as explained in the associated issue I opened on the github repository of my project), because CoreText does not offer such feature. The only way to

I have some code in a view which draws some attributed text using CoreText. In this, I'm searching for urls and making them blue. The idea is to not bring in all the overhead of a UIWebView just to get clickable links. Once a user taps on that link (not the whole table view cell), I want to fire off a delegate method which will then be used to present a modal view which contains a web view going to that url. I'm saving the path and the string itself as instance variables of the view, and the drawing code happens in -drawRect: (I've left it out for brevity). My touch handler however, while

I'm completely in the dark with Core Text's line spacing. I'm using NSAttributedString and I specify the following attributes on it: - kCTFontAttributeName - kCTParagraphStyleAttributeName From this the CTFrameSetter gets created and drawn to context. In the paragraph style attribute I'd like to specify the height of the lines. When I use kCTParagraphStyleSpecifierLineHeightMultiple each line receives padding at the top of the text, instead of the text being displayed in the middle of this height. When I use kCTParagraphStyleSpecifierLineSpacing a padding is added to the bottom of the text.

I have the following code working in Objective-C NSArray *lines = (NSArray *)CTFrameGetLines((__bridge CTFrameRef)columnFrame); CGPoint origins[[lines count]]; CTFrameGetLineOrigins((__bridge CTFrameRef)columnFrame, CFRangeMake(0, 0), origins); But when ported to Swift, the compiler complains with a Cannot convert the expression´s ´Void´to type ´CMutablePointer<CGPoint> in the CTFrameGetLineOrigins line let nsLinesArray: NSArray = CTFrameGetLines(ctFrame) // Use NSArray to bridge to Array let ctLinesArray = nsLinesArray as Array var originsArray: Array<CGPoint> = CGPoint[]() //var originsArray

I'm trying to add each line in a UILabel to an array, but the code I'm using doesn't appear to be terribly accurate. func getLinesArrayOfStringInLabel(label:UILabel) -> [String] { guard let text: NSString = label.text as? NSString else { return [] } let font:UIFont = label.font let rect:CGRect = label.frame let myFont: CTFont = CTFontCreateWithName(font.fontName as CFString, font.pointSize, nil) let attStr:NSMutableAttributedString = NSMutableAttributedString(string: text as String) attStr.addAttribute(NSAttributedStringKey.font, value:myFont, range: NSMakeRange(0, attStr.length)) let