报错 CGPathAddPath is unavailable: Use addPath(_:transform) Using Xcode 8.0

Getting an error CGPathAddPath is unavailable: Use addPath(_:transform) Using Xcode 8.0

出现错误。

CGPathAddPath is unavailable: Use addPath(_:transform) Using Xcode 8.0

for index in 0...(chars.count - 1) 
{

let letter = CTFontCreatePathForGlyph(borderFont, glyphs[index], nil)              

var t = CGAffineTransform(translationX: xPosition , y: 0)

CGPathAddPath(letters, &t, letter)

xPosition = xPosition + advances[index].width

}

像这样使用addPath(_:transform)

 letters.addPath(letter, transform:t)

查看 CGMutablePath 上的 Apple 文档了解更多详细信息。