［已解决］swift中dispatch_once出错：& used with non-inout argument of type UnsafeMutablePointer (aka UnsafeMutablePointer)
crifan 9年前 (2016-03-21) 3150浏览
代码： class ImageBubbleView: UIView { static var refreshImgToken:dispatch_once_t = 0 func doItOnce() { di...