Retrieve all images from NSDocumentDirectory and storing into an array - objective-c

Question

Currently i'm using these codes to save my images into NSDocumentDirectory. I use this counter as the naming convention for them.
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingImage:(UIImage *)selectedImage editingInfo:(NSDictionary *)editingInfo
{
[self.popoverController dismissPopoverAnimated:YES];
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDir = [paths objectAtIndex:0];
NSString *savedImagePath = [documentsDir stringByAppendingPathComponent:[NSString stringWithFormat:#"%d.png", counter]];
UIImage *image = imageView.image;
NSData *imageData = UIImagePNGRepresentation(image);
[imageData writeToFile:savedImagePath atomically:NO];
}
I use this method because it's easier for me to retrieve all of them by using a loop. I want to retrieve all the images from the NSDocumentDirectory so that i can display them in another view. The following codes show how i retrieve them.
-(NSMutableArray *)GetImage:(NSMutableArray *)arrayImgNames
{
NSMutableArray *tempArray;
for(int i=0;i<[arrayImgNames count]; i++)
{
NSArray *paths1 = NSSearchPathForDirectoriesInDomains (NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths1 objectAtIndex:0];
NSString *filePath = [documentsDirectory stringByAppendingPathComponent: [arrayImgNames objectAtIndex:i]];
[tempArray addObject:[[UIImage alloc] initWithContentsOfFile:filePath]];
return tempArray;
}
}
However, i do not wish to use the counter as a naming convention for my images. I want to use proper names for them but if i do so, i will have to change my method of retrieving all the images.
Is there any other way that i can retrieve all images other than this method i mentioned?

Answer 1

You can retrieve files using next approach:
NSURL *url = [[AppDelegate sharedAppDelegate] applicationDocumentsDirectory];
NSError *error = nil;
NSArray *properties = [NSArray arrayWithObjects: NSURLLocalizedNameKey, NSURLLocalizedTypeDescriptionKey, nil];
NSArray *files = [[NSFileManager defaultManager] contentsOfDirectoryAtURL:url
includingPropertiesForKeys:properties options:(NSDirectoryEnumerationSkipsPackageDescendants)
error:&error];
In files paths to all files of documents directory will be stored. Next code will help you to get there names:
NSURL *url = [files objectAtIndex:index];
NSString *localizedName = [url lastPathComponent];