如何在Swift中将此var字符串转换为URL

本文介绍了如何在Swift中将此var字符串转换为URL的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我需要url文件路径为 URL (在旧版Swift中为NSURL).我有这个:

I need url filepath be a URL (NSURL in old versions of Swift). I have this:

let paths = NSSearchPathForDirectoriesInDomains( .documentDirectory, .userDomainMask, true) // NSString *documentsDirectory = [paths objectAtIndex:0]; let documentsDirectory = paths[0] as String var filePath:String? = nil var fileNamePostfix = 0 repeat { filePath = "\(documentsDirectory)/\(dateTimePrefix)-\(fileNamePostfix).mp4" fileNamePostfix += 1 } while (FileManager.default.fileExists(atPath: filePath))

我需要将其转换为URL，以便在self.fileOutput.startRecording(to: <#outputFileURL: URL?#>, recordingDelegate: <#AVCaptureFileOutputRecordingDelegate?#>)方法中使用.

I need to convert this to URL for use in self.fileOutput.startRecording(to: <#outputFileURL: URL?#>, recordingDelegate: <#AVCaptureFileOutputRecordingDelegate?#>) method.

我尝试了filePath as? URL()，但这是不正确的.

I tried filePath as? URL() but it isn't correct.

推荐答案

您需要这样做:

let fileUrl = URL(string: filePath)

或

let fileUrl = URL(fileURLWithPath: filePath)

取决于您的需求.请参见 URL文档

depending on your needs. See URL docs

在Swift 3之前，URL被称为NSURL.

Before Swift 3, URL was called NSURL.