iOS15 UTType 弃用 URL 扩展 [重复]

使用Swift5.5、iOS15.0.1、

从 iOS15 开始，我意识到与我现有的 URL 扩展相关的一些弃用行为正在发生。

我没有找到任何关于如何重写现有扩展的好的文档。

这是我目前的实现，大约是。 16个折旧警告我不知道如何使用iOS15规避。对此的任何想法都受到高度赞赏！

extension URL {
    func mimeType() -> String {
        let pathExtension = self.pathExtension
        if let uti = UTTypeCreatePreferredIdentifierForTag(kUTTagClassFilenameExtension, pathExtension as NSString, nil)?.takeRetainedValue() {
            if let mimetype = UTTypeCopyPreferredTagWithClass(uti, kUTTagClassMIMEType)?.takeRetainedValue() {
                return mimetype as String
            }
        }
        return "application/octet-stream"
    }
    
    var containsImage: Bool {
        let mimeType = self.mimeType()
        guard let uti = UTTypeCreatePreferredIdentifierForTag(kUTTagClassMIMEType, mimeType as CFString, nil)?.takeRetainedValue() else {
            return false
        }
        return UTTypeConformsTo(uti, kUTTypeImage)
    }
    
    var containsAudio: Bool {
        let mimeType = self.mimeType()
        guard let uti = UTTypeCreatePreferredIdentifierForTag(kUTTagClassMIMEType, mimeType as CFString, nil)?.takeRetainedValue() else {
            return false
        }
        return UTTypeConformsTo(uti, kUTTypeAudio)
    }
    
    var containsVideo: Bool {
        let mimeType = self.mimeType()
        guard  let uti = UTTypeCreatePreferredIdentifierForTag(kUTTagClassMIMEType, mimeType as CFString, nil)?.takeRetainedValue() else {
            return false
        }
        return UTTypeConformsTo(uti, kUTTypeMovie)
    }
}

雨燕5.5

import UniformTypeIdentifiers

extension URL {
    
    var mimeType: String {
        return UTType(filenameExtension: self.pathExtension)?.preferredMIMEType ?? "application/octet-stream"
    }
    
    func contains(_ uttype: UTType) -> Bool {
        return UTType(mimeType: self.mimeType)?.conforms(to: uttype) ?? false
    }

}

//Example:
let fileUrl = URL(string: "../myFile.png")!
print(fileUrl.contains(.image))
print(fileUrl.contains(.video))
print(fileUrl.contains(.text))