겔러리에서 모든 이미지 불러오기

-(void)getAllPhotos

{

    [[Util sharedInstance] showLoadingView];

    

    NSMutableArray *photos = [[NSMutableArray alloc] init];

    PHFetchOptions *allPhotosOptions = [[PHFetchOptions alloc] init];

    allPhotosOptions.sortDescriptors = @[[NSSortDescriptor sortDescriptorWithKey:@"creationDate" ascending:NO]];

    PHFetchResult *allPhotos = [PHAsset fetchAssetsWithOptions:allPhotosOptions];

    PHFetchResult *fetchResult = @[allPhotos][0];

    

    for (int x = 0; x < fetchResult.count; x ++) {

        

        PHAsset *asset = fetchResult[x];

        photos[x] = asset;

    }

    

    self.assets = photos;

    

    [[Util sharedInstance] hideLoadingView];

    [_collectionView reloadData];

}

- (void)viewDidLoad {

    [super viewDidLoad];

    

    self.selectedAssets = [[NSMutableArray alloc] init];

    self.assets = [[NSMutableArray alloc] init];

    

    self.manager = [PHImageManager defaultManager];

    self.options = [[PHImageRequestOptions alloc] init];

    _options.resizeMode = PHImageRequestOptionsResizeModeFast;

    _options.deliveryMode = PHImageRequestOptionsDeliveryModeFastFormat;

    

    [self requestAuthorizationWithRedirectionToSettings];

    

    //[self performSelector:@selector(getAllPhotos) withObject:nil];

}

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

    

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

    

    cell.checkIndicator.hidden = NO;

    PHAsset *asset = [_assets objectAtIndex:indexPath.item];

    [_manager requestImageForAsset:asset

                       targetSize:CGSizeMake(1024.f,1024.f)

                      contentMode:PHImageContentModeDefault

                          options:_options

                    resultHandler:^void(UIImage *image, NSDictionary *info) {

                        cell.photo.image = image;

                    }];

    

    //update checkbox

    NSUInteger foundIndex = [_selectedAssets indexOfObject:asset];

    if (foundIndex != NSNotFound) {

        [cell setCheck:YES];

    } else {

        [cell setCheck:NO];

    }

    

    return cell;

}