我有一个extension UILabel {
var stringLines: [String] {
guard let text = text, let font = font else { return [] }
let ctFont = CTFontCreateWithName(font.fontName as CFString, font.pointSize, nil)
let attStr = NSMutableAttributedString(string: text)
attStr.addAttribute(kCTFontAttributeName as NSAttributedString.Key, value: ctFont, range: NSRange(location: 0, length: attStr.length))
let frameSetter = CTFramesetterCreateWithAttributedString(attStr as CFAttributedString)
let path = CGMutablePath()
path.addRect(CGRect(x: 0, y: 0, width: self.frame.size.width, height: CGFloat.greatestFiniteMagnitude), transform: .identity)
let frame = CTFramesetterCreateFrame(frameSetter, CFRangeMake(0, 0), path, nil)
guard let lines = CTFrameGetLines(frame) as? [Any] else { return [] }
return lines.map { line in
let lineRef = line as! CTLine
let lineRange: CFRange = CTLineGetStringRange(lineRef)
let range = NSRange(location: lineRange.location, length: lineRange.length)
return (text as NSString).substring(with: range)
}
}
}
的列表。他们每个人都有自己的UIView。如何使唯一的UIPanGestureRecognizer一次可以拖动？
现在，如果我使用2根手指，则可以拖动2个UIView。
答案 0 :(得分：0)
我找到了解决方案 在UIView上使用isExclusiveTouch一次只能使一个UIGestureRecognizer可用