Ios 在启用换行模式的情况下,在NSLayoutManager中获取图示符的正确点
我正在尝试在Ios 在启用换行模式的情况下,在NSLayoutManager中获取图示符的正确点,ios,swift,nstextcontainer,nsparagraphstyle,Ios,Swift,Nstextcontainer,Nsparagraphstyle,我正在尝试在NSTextContainer中获取所选字符的实际点: func handleTouch(gestureRecognizer: UIGestureRecognizer) { var location = gestureRecognizer.locationInView(self) let startPoint = self.layoutManager.locationForGlyphAtIndex(0) location = CGPoint(x: location.
NSTextContainer
中获取所选字符的实际点:
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)
}
它可以正常工作,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,然后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?尝试类似的功能
有关更多详细信息,请参见此功能,并尝试使用类似的功能
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