How to implement SAMCache On this code

//
//  RootViewController.m
//  
//
//  Created by hamdan mohamad on 5/17/14.
//
//

#import "RootViewController.h"
#import <SimpleAuth/SimpleAuth.h>
#import <SAMCache/SAMCache.h>

@interface RootViewController ()
@property (nonatomic) NSArray *dataFromInstagramJSON;
@property (nonatomic) NSString *token;
@property (nonatomic) NSDictionary *jsonData;
@end

@implementation RootViewController

- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
    if (self) {
        // Custom initialization
    }
    return self;
}

- (void)viewDidLoad
{
    [super viewDidLoad];
    // Do any additional setup after loading the view.

    //get the access token
    NSUserDefaults *userDefaults = [NSUserDefaults standardUserDefaults];
    self.token = [userDefaults objectForKey:@"accessToken"];

    if (self.token == nil) {
        [SimpleAuth authorize:@"instagram" options:@{@"scope":@[@"likes"]} completion:^(id responseObject, NSError *error) {
            self.token = responseObject[@"credentials"][@"token"];
            //NSLog(@"data from insta : %@", responseObject);

            [userDefaults setObject:self.token forKey:@"accessToken"];
            [userDefaults synchronize];

            [self instagramData];
        }];
    }
    else {

        [self instagramData];

    }

}

- (void)didReceiveMemoryWarning
{
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

-(void)instagramData {





    NSURLSession *session = [NSURLSession sharedSession];

    NSString *urlString = [[NSString alloc] initWithFormat:@"https://api.instagram.com/v1/users/self/feed?access_token=%@", self.token];

    NSURL *url = [NSURL URLWithString:urlString];

    NSURLRequest *request = [NSURLRequest requestWithURL:url];

    NSURLSessionDownloadTask *task = [session downloadTaskWithRequest:request completionHandler:^(NSURL *location, NSURLResponse *response, NSError *error) {

        NSData *data = [NSData dataWithContentsOfURL:location];
        self.jsonData = [NSJSONSerialization JSONObjectWithData:data options:kNilOptions error:nil];

        self.dataFromInstagramJSON = [self.jsonData valueForKeyPath:@"data"];

        dispatch_async(dispatch_get_main_queue(), ^{
            [self.collectionView reloadData];
        });

    }];



    [task resume];
}

-(NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section {

    return self.dataFromInstagramJSON.count;
}

-(UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath {

    UICollectionViewCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier:@"Cell" forIndexPath:indexPath];

    cell.backgroundColor = [UIColor lightGrayColor];

    NSDictionary *picURL = self.dataFromInstagramJSON[indexPath.row];

    NSString *urlString = picURL[@"images"][@"standard_resolution"][@"url"];
    UIImage *image = [UIImage imageWithData:[NSData dataWithContentsOfURL:[NSURL URLWithString:urlString]]];

    UIImageView *imageView = (UIImageView *)[cell viewWithTag:10];
    imageView.image = image;

    return cell;
}

@end