How to create folder and save multiple image for document directory in ios

.h file

@interface ViewController : UIViewController <UIImagePickerControllerDelegate, UINavigationControllerDelegate> {

    UIImagePickerController *picker;

    UIImage *image;

}

-(IBAction)ChooseExisting;

.m file

-(IBAction)ChooseExisting{

    picker = [[UIImagePickerController alloc]init];

    picker.delegate=self;

    [picker setSourceType:UIImagePickerControllerSourceTypePhotoLibrary];

    [self presentViewController:picker animated:YES completion:NULL];

    

}

-(void) imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info{

    image = [info objectForKey:UIImagePickerControllerOriginalImage];

    [self dismissViewControllerAnimated:YES completion:NULL];    

    if (image != nil)

    {      

        NSError *error;

        NSString *aDocumentsDirectory = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) lastObject];

        NSString *dataPath = [aDocumentsDirectory stringByAppendingPathComponent:@"Image"];

        [[NSFileManager defaultManager] createDirectoryAtPath:dataPath withIntermediateDirectories:NO attributes:nil error:&error];       

      

        NSDateFormatter *format = [[NSDateFormatter alloc] init];

        [format setDateFormat:@"yyyyMMddHHmmss"];

        NSDate *now = [NSDate date];

        NSString *retStr = [format stringFromDate:now];        

                

            NSString *anImageName = [NSString stringWithFormat:@"%@.png", retStr];

             NSString *anImagePath = [NSString stringWithFormat:@"%@/%@", dataPath, anImageName];

            NSLog(@"the path is=%@",anImagePath);

            

            NSData *anImageData = UIImagePNGRepresentation(image);

            [anImageData writeToFile:anImagePath atomically:YES];      

       

    }

    

}