夫特3
func getLinesArrayFromLabel(label:UILabel) -> [String] {
let text:NSString = label.text! as NSString // TODO: Make safe?
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(String(kCTFontAttributeName), value:myFont, range: NSMakeRange(0, attStr.length))
let frameSetter:CTFramesetter = CTFramesetterCreateWithAttributedString(attStr as CFAttributedString)
let path:CGMutablePath = CGMutablePath()
path.addRect(CGRect(x:0, y:0, width:rect.size.width, height:100000))
let frame:CTFrame = CTFramesetterCreateFrame(frameSetter, CFRangeMake(0, 0), path, nil)
let lines = CTFrameGetLines(frame) as NSArray
var linesArray = [String]()
for line in lines {
let lineRange = CTLineGetStringRange(line as! CTLine)
let range:NSRange = NSMakeRange(lineRange.location, lineRange.length)
let lineString = text.substring(with: range)
linesArray.append(lineString as String)
}
return linesArray
}
夫特2(Xcode的7)的版本(測試,並從夫特1答案重新編輯)
func getLinesArrayOfStringInLabel(label:UILabel) -> [String] {
let text:NSString = label.text! // TODO: Make safe?
let font:UIFont = label.font
let rect:CGRect = label.frame
let myFont:CTFontRef = CTFontCreateWithName(font.fontName, font.pointSize, nil)
let attStr:NSMutableAttributedString = NSMutableAttributedString(string: text as String)
attStr.addAttribute(String(kCTFontAttributeName), value:myFont, range: NSMakeRange(0, attStr.length))
let frameSetter:CTFramesetterRef = CTFramesetterCreateWithAttributedString(attStr as CFAttributedStringRef)
let path:CGMutablePathRef = CGPathCreateMutable()
CGPathAddRect(path, nil, CGRectMake(0, 0, rect.size.width, 100000))
let frame:CTFrameRef = CTFramesetterCreateFrame(frameSetter, CFRangeMake(0, 0), path, nil)
let lines = CTFrameGetLines(frame) as NSArray
var linesArray = [String]()
for line in lines {
let lineRange = CTLineGetStringRange(line as! CTLine)
let range:NSRange = NSMakeRange(lineRange.location, lineRange.length)
let lineString = text.substringWithRange(range)
linesArray.append(lineString as String)
}
return linesArray
}
真棒答案....擡起頭....保存了很多我的時間。謝謝.. – 2015-08-26 11:29:55
很棒,很棒。非常感謝。 – 2016-04-18 15:00:57