Array of image url to ui collectionview - objective-c

Question

I am doing a json query to get an array of image urls. I want to display the images on a uicollection view. But I am missing something. I think I have to parse thru the array and set nsurl to each item. Then put each item in nsdata. But I am not sure. I don't want to use 3rd party software either.
Here is a sample of my code.
- (void)viewDidLoad {
[super viewDidLoad];
dispatch_async(kBgQueue, ^{
NSData* data = [NSData dataWithContentsOfURL:
coProFeedURL];
[self performSelectorOnMainThread:#selector(fetchedData:)
withObject:data waitUntilDone:YES];
});
}
///new return all company data array
- (void)fetchedData:(NSData *)responseData {
//parse out the json data
NSError* error;
NSDictionary* json = [NSJSONSerialization
JSONObjectWithData:responseData //1
options:kNilOptions
error:&error];
NSArray * getProductsArray = [json objectForKey:#"CompanyProduct"]; //2 get all product info
NSPredicate *predicate = [NSPredicate predicateWithFormat:#"companyID = %#", passCoData];//added create filter to only selected company
NSArray * filteredProductArray = [getProductsArray filteredArrayUsingPredicate:predicate];//only products for selected company
///doing parsing here to get array of image urls
finalImageArray = [filteredProductArray allObjects];//original
NSLog(#" url images :%#", finalImageArray);
//NEED TO GET FINALIMAGEARRAY TO NSURL TYPE AND SET TO IMAGE?
}
- (NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section {
return finalImageArray.count;
}
- (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath {
static NSString *identifier = #"Cell";//test form file works
ItemCollectionViewCell *cell = (ItemCollectionViewCell *)[collectionView dequeueReusableCellWithReuseIdentifier:identifier forIndexPath:indexPath];//test form file works
///then add the finalImageArray?
return cell;
}
Here the output of my finalImageArray that i want to apply to uicollectionview, here is the log data:
{(
"http://www.test/inventory/images/bball.jpg",
"http://www.test/images/bird%20tank_0.jpg"
)}
So am i missing something like nsurl, or nsdata, or what. How do i get this array of image url to display on a uicollectionview? Thanks for the help!

Answer 1

Just reload Collection view with updated data of array. As you requested on background thread. Now, you need to reload data on main thread.
- (void)fetchedData:(NSData *)responseData {
//YOUR CODE ...
finalImageArray = [filteredProductArray allObjects];//original
NSLog(#" url images :%#", finalImageArray);
//NEED TO GET FINALIMAGEARRAY TO NSURL TYPE AND SET TO IMAGE?
dispatch_async(dispatch_get_main_queue(), ^{
[collectionView reloadData];
});
}
Hope, it'll help you.