nsfilemanager

How can I check if a file exists at a URL (instead of a path), in order to set a pre-populated default store into the iPhone Simulator: NSURL *storeURL = [[self applicationDocumentsDirectory] URLByAppendingPathComponent:@"Food.sqlite"]; /* Set up the store. For the sake of illustration, provide a pre-populated default store. */ NSFileManager *fileManager = [NSFileManager defaultManager]; // If the expected store doesn't exist, copy the default store. if (![fileManager fileExistsAtPath:storePath]) { NSString *defaultStorePath = [[NSBundle mainBundle] pathForResource:@"Food" ofType:@"sqlite"];

Handle selected image or video: func imagePickerController(picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : AnyObject]) { print("ok") if let image = info[UIImagePickerControllerOriginalImage] as? UIImage { //what to do to save that image } else { //how to get the video and save } } Save it to the document directory: let path = try! NSFileManager.defaultManager().URLForDirectory(NSSearchPathDirectory.DocumentDirectory, inDomain: NSSearchPathDomainMask.UserDomainMask, appropriateForURL: nil, create: false) let newPath = path.URLByAppendingPathComponent("image.jpg")

I have done a lot of research on this and haven't found anything useful. I want am making a simple program in objective c for personal use that opens files and gives information about them. The only problem i have encountered is that i cannot find the file of a file i am opening. Without simply looking at the extension, is there a way to find the full file format of a file in objective c? If possible, i would also like to be able to save that file in a different format. Information on this subject is also important for this application. Help will be greatly appreciated. Mac OS X has type

I want to use the octal permissions (used for chmod) for NSFilePosixPermissions. Here is what I did now: NSFileManager *manager = [NSFileManager defaultManager]; NSDictionary *attributes; [attributes setValue:[NSString stringWithFormat:@"%d", 0777] forKey:@"NSFilePosixPermissions"]; // chmod permissions 777 [manager setAttributes:attributes ofItemAtPath:@"/Users/lucky/Desktop/script" error:nil]; I get no error, but when I check the result with "ls -o" the permission are't -rwxrwxrwx. What's wrong? Thanks for help. gcbrueckmann First, NSFilePosixPermissions is the name of a constant. Its value

When I update my iOS app, I want to delete any existing sqlite databases in the Documents directory. Right now, on an application update, I copy the database from the bundle to the documents directory and name it by appending the bundle version. So, on the update, I also want to delete any old versions that might exist. I just want to be able to delete all sqlite files, without having to loop through and look for ones from previous versions. Is there any way to wildcard the removeFileAtPath: method? memmons So, you'd like to delete all *.sqlite files? There is no way to avoid looping, but you