How to convert this var string to URL in Swift
问题 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)) I need to