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POSEGUE and show large image in another VC
 

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    <p>I am new to oop and objective-c. I have a collectionView which loads photos from my phone. I want to segue to another ViewController so that my asset is displayed @ full resolution.I followed this post: <a href="https://stackoverflow.com/questions/11515643/set-uiimageview-image-in-prepareforsegue">set UIImageView.image in prepareForSegue</a> by Rob Mayoff and came up with this, here is my code for the main VC : </p> <pre><code> - (void)viewDidLoad { [super viewDidLoad]; void (^assetEnumerator)(ALAsset *, NSUInteger, BOOL *) = ^(ALAsset *result, NSUInteger index, BOOL *stop) { if (result != NULL) { NSLog(@"See Asset: %@", result); [_gallery addObject:result]; } }; void (^assetGroupEnumerator)(ALAssetsGroup *, BOOL *) = ^(ALAssetsGroup *group, BOOL *stop) { if(group != nil) { [group enumerateAssetsUsingBlock: assetEnumerator]; } [self.collectionView reloadData]; }; _gallery = [[NSMutableArray alloc]init]; _library = [[ALAssetsLibrary alloc] init]; [_library enumerateGroupsWithTypes: ALAssetsGroupAlbum usingBlock: assetGroupEnumerator failureBlock: ^(NSError *error) { NSLog(@"Failure"); }]; } -(NSInteger)numberOfSectionsInCollectionView:(UICollectionView *)collectionView { return 1; } -(NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section { return _gallery.count; } -(UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath { ViewControllerCell *myCell = [collectionView dequeueReusableCellWithReuseIdentifier:@"myCell" forIndexPath:indexPath]; _asset = [_gallery objectAtIndex:indexPath.row]; _photo =[UIImage imageWithCGImage:[_asset thumbnail]] ; myCell.myImage.image = _photo; return myCell; } -(void)collectionView:(UICollectionView *)collectionView didSelectItemAtIndexPath:(NSIndexPath *)indexPath { _asset = [_gallery objectAtIndex:indexPath.row]; _photo = [UIImage imageWithCGImage:[_asset thumbnail]]; ALAssetRepresentation *rep = [_asset defaultRepresentation]; CGImageRef ref = [rep fullResolutionImage]; _img = [UIImage imageWithCGImage: ref]; } //the segue is set to modal - (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender { if ([segue.identifier isEqualToString:@"ShowPhoto"]) { PhotoZoomController *photoZoom = segue.destinationViewController; photoZoom.object = sender; } } </code></pre> <p>Now to show my full image I do this in my viewDidLoad method in the destination VC :</p> <pre><code>- (void)viewDidLoad { ViewController *vc = [[ViewController alloc] init]; _image = vc.img; [super viewDidLoad]; _largePhoto.image = _image; / *largePhoto is the UIImageView @property declared in destination VC.h */ } </code></pre> <p>I am getting a blank imageView. I certainly have done something wrong and really need your help. I just don't know what to do anymore Thanks in advance. </p>
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