在启用换行模式的情况下，在NSLayoutManager中获取正确的字形点

Question

我正试图在NSTextContainer:中获得所选字符的实际点

func handleTouch(gestureRecognizer: UIGestureRecognizer) {
   var location = gestureRecognizer.locationInView(self)
   let startPoint = self.layoutManager.locationForGlyphAtIndex(0)
   location = CGPoint(x: location.x - startPoint.x, y: location.y - startPoint.y)
   var fraction: CGFloat = 0
   let index = self.layoutManager.glyphIndexForPoint(location, inTextContainer: textContainer, fractionOfDistanceThroughGlyph: &fraction)
}

它正常工作，直到设置了第一个换行符

NSParagraphStyle.hyphenationFactor = 2

每个连字符将索引移动一个点，glyphIndexForPoint得到错误的索引。如何在启用换行模式的情况下获得正确的索引？

Answer 1

尝试类似的函数characterIndexForPoint（_：inTextContainer:factonOfDistanceBetweenInsertionPoints:）

有关更多详细信息，您可以看到这个问题