QLPreviewController的导航栏标题显示像6 2当前页码,但我想这个标题改为像当前文件名任意字符串。
尝试这个
let lblNavTitle = UILabel(frame: CGRect(x: 60, y: 10, width: view.frame.size.width-110, height: 20))
lblNavTitle?.textAlignment = .center
lblNavTitle?.lineBreakMode = .byTruncatingMiddle
lblNavTitle?.text = "File Name"
navigationItem.titleView = lblNavTitle
要么
只需设置标题属性像
self.title = "File Name"
可能它会为你工作