UITableView caching - uitableview

Question

I create a UITableView, the data comes through a JSON file quite heavy, I wondered if it was possible to put the tableView cached for what is not rafrachisse each segue (push for example)?
I would put my tableView cache for which loads faster loading this page.
My entries JSON (YouTube API v3):
- (void)fetchEntries
{
NSString *searchURL = [API_V3_CHANNEL_URL stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
NSData *searchData = [NSData dataWithContentsOfURL:[NSURL URLWithString:searchURL]];
NSDictionary *searchDict =[NSJSONSerialization JSONObjectWithData:searchData options:NSJSONReadingMutableContainers error:nil];
self.readArray = [searchDict objectForKey:#"items"];
}
and my tableview code:
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"CustomCell";
YouTubeCell *cell = (YouTubeCell *)[tableView dequeueReusableCellWithIdentifier:CellIdentifier];
// Add utility buttons, si besoin effacer de ici
NSMutableArray *leftUtilityButtons = [NSMutableArray new];
[leftUtilityButtons sw_addUtilityButtonWithColor:
UIColorFromRGB(0x2c3e50)
icon:[UIImage imageNamed:#"Icon-message-swipe"]];
[leftUtilityButtons sw_addUtilityButtonWithColor:
UIColorFromRGB(0x475198)
icon:[UIImage imageNamed:#"IconFacebook2"]];
[leftUtilityButtons sw_addUtilityButtonWithColor:
UIColorFromRGB(0x4EA5EC)
icon:[UIImage imageNamed:#"IconTwitter2"]];
[leftUtilityButtons sw_addUtilityButtonWithColor:
UIColorFromRGB(0xe74c3c)
icon:[UIImage imageNamed:#"IconYoutube3"]];
cell.leftUtilityButtons = leftUtilityButtons;
cell.delegate = self;
// à ici
NSDictionary *searchResult = [self.readArray objectAtIndex:indexPath.row];
//Create the button and add it to the cell
//UIButton *button = [UIButton buttonWithType:UIButtonTypeRoundedRect];
//[button addTarget:self
// action:#selector(customActionPressed:)
//forControlEvents:UIControlEventTouchDown];
//[button setTitle:#"Custom Action" forState:UIControlStateNormal];
//button.frame = CGRectMake(150.0f, 5.0f, 150.0f, 30.0f);
//[cell addSubview:button];
cell.ytTitle.text = [[searchResult objectForKey:#"snippet"] valueForKey:#"title"];
cell.ytLink.text = [[[searchResult objectForKey:#"snippet"] objectForKey:#"resourceId"] valueForKey:#"videoId"];
cell.ytLink.hidden = true;
cell.ytTitle.font = [UIFont fontWithName:#"BigNoodleTitling" size:17];
NSString *imageHD = [[[[searchResult objectForKey:#"snippet"] objectForKey:#"thumbnails"] objectForKey:#"high"] valueForKey:#"url"];
NSURL *imageURL = [NSURL URLWithString:imageHD];
NSString *key = imageHD;
NSData *data = [ISCache objectForKey:key];
if (data) {
UIImage *image = [UIImage imageWithData:data];
cell.ytThumbnail.image = image;
} else {
cell.ytThumbnail.image = [UIImage imageNamed:#"hqdefault.jpg"];
dispatch_queue_t queue = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_HIGH, 0ul);
dispatch_async(queue, ^{
NSData *data = [NSData dataWithContentsOfURL:imageURL];
[ISCache setObject:data forKey:key];
UIImage *image = [UIImage imageWithData:data];
dispatch_sync(dispatch_get_main_queue(), ^{
cell.ytThumbnail.image = image;
});
});
}
return cell;
}