nslayoutmanager

问题 In order to support the UIAccessibilityReadingContent protocol, I need my UITextView to answer me questions about its lines. These are the methods of the protocol that I need to implement: accessibilityLineNumberForPoint: <- Provided a coordinate, return a line number accessibilityContentForLineNumber: <- Return the text of a given line accessibilityFrameForLineNumber: <- Given a line number, return its frame accessibilityPageContent <- The entire text content. That I have. :) I figure that

问题 I have a problem that "boundingRectForGlyphRange" always returns CGRect.zero "0.0, 0.0, 0.0, 0.0". "boundingRectForGlyphRange" is not working. For example, I am coding for touching on a part of text of UILabel feature. My text has first part is "any text" and second one is "READ MORE". I want the tap recognizer only work when I touch "READ MORE". If I touch on any point on UILabel, "CGRectContainsPoint" always return true,then the action called Here my code: override func viewDidLoad() {

问题 Since Xcode 6 still has a lots of bugs with Swift, I'm not sure is it one or I'm missing something. My class adopts protocol NSLayoutManagerDelegate. But it seems impossible to override method I need. I do as documentation describes: override func layoutManager(_ aLayoutManager: NSLayoutManager!, didCompleteLayoutForTextContainer aTextContainer: NSTextContainer!, atEnd flag: Bool) { } But I get error here: method does not override any method from its superclass. What should I do? 回答1: You're