swift3 – 如何在Swift 3中将文档目录中的图像显示到UIImageView？

下面的 Swift 2示例给出了以下错误：

Value of type String has no member ‘stringByAppendingPathComponent’

我需要为Swift 3更改什么？

Apple试图将所有人从URL-as-string范例转移到URL(即file：///path/to/file.text). Swift API几乎删除了所有支持URL的路径.

你仍然可以在Objective-C(Nsstring)中找到它：

let paths = NSSearchPathForDirectoriesInDomains(.documentDirectory,.userDomainMask,true)[0] as String
let getimagePath = Nsstring.path(withComponents: [paths,"fileName"])

Swifty方式越多：

let paths = NSSearchPathForDirectoriesInDomains(.documentDirectory,true)[0] as String
let url = URL(fileURLWithPath: paths).appendingPathComponent("fileName")