nsurl

I am downloading a bunch of image files from a server, and I want to ensure that they are downloaded only if they are newer. This method currently downloads the images just fine. However, I don't want to waste time or energy re-downloading images every time the user logs into the app. Instead, I want to only download any files that A) Don't exist B) Are newer on the server than on the device Here is how I am downloading the images: *The image url is saved in Core Data with the video it is associated to. The url is generated using a simple conversion method I build (generateThumbnailURL) -(void

I have file at path file:///var/mobile/Media/DCIM/100APPLE/IMG_0197.mov But when I try this code- NSError *error; NSData *data = [NSData dataWithContentsOfFile:assetUrl.relativePath options:NSDataReadingMappedAlways error:&error]; I got nothing but error: Error Domain=NSCocoaErrorDomain Code=257 "Не удалось завершить операцию. (Cocoa, ошибка 257)" UserInfo=0x175a61380 {NSFilePath=/var/mobile/Media/DCIM/100APPLE/IMG_0197.mov, NSUnderlyingError=0x17424e550 "Не удалось завершить операцию. Operation not permitted"} File exists but I can't read it. But at the same time AVPlayer normally plays video

The first two example links are working the third one returns NIL. Why is NSUrl returning nil for such string, even though it's a valid url in a browser? Am I supposed to process the string more? Here is my code: import UIKit import Foundation class ViewController: UIViewController, UITableViewDataSource, UITableViewDelegate, NSXMLParserDelegate { var myFeed : NSArray = [] var url : NSURL! var feedURL : NSURL! var selectedFeedURL = String() @IBOutlet var tableFeeds: UITableView! @IBOutlet var webView: UIWebView! override func viewDidLoad() { super.viewDidLoad() // Set feed url. //url = NSURL

Note:- This question is only for Swift 3.0 I am able to get the path prio to Swift 3.0 I want to get UIImage's path picked in didFinishPickingMediaWithInfo method let imageUrl = info[UIImagePickerControllerReferenceURL] as? NSURL let imageName = imageUrl.lastPathComponent let documentDirectory = NSSearchPathForDirectoriesInDomains(.documentDirectory, .userDomainMask, true).first! let photoURL = NSURL(fileURLWithPath: documentDirectory) let localPath = photoURL.appendingPathComponent(imageName!) But this path is not pointing to my image, Even there is no any image in Documents folder. Can