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POTrying to base some code off of Apple's Image Zooming App example, missing some simple Interface Builder knowledge
 

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  1. POTrying to base some code off of Apple's Image Zooming App example, missing some simple Interface Builder knowledge
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    <p>I'm trying to base part of my app off of Apple's Image Zooming example, to get zooming, scrolling, and orientation of images that are saved to the app's sandbox.</p> <p><a href="http://developer.apple.com/library/ios/#documentation/WindowsViews/Conceptual/UIScrollView_pg/Introduction/Introduction.html" rel="nofollow">http://developer.apple.com/library/ios/#documentation/WindowsViews/Conceptual/UIScrollView_pg/Introduction/Introduction.html</a></p> <p>I have it sort of working now, except that when the ScrollView loads, it's blank. The code looks something like this:</p> <pre><code>@interface PhotoViewController : UIViewController &lt;UIScrollViewDelegate&gt; { UIScrollView *imageScrollView; UIImageView *imageView; } @property (nonatomic, retain) IBOutlet UIScrollView *imageScrollView; @property (nonatomic, retain) UIImageView *imageView; @end @implementation PhotoViewController @synthesize imageView, imageScrollView; - (void)viewDidLoad { [super viewDidLoad]; imageScrollView.bouncesZoom = YES; imageScrollView.delegate = self; imageScrollView.clipsToBounds = YES; imageView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"image1.jpg"]]; imageView.autoresizingMask = UIViewAutoresizingFlexibleHeight | UIViewAutoresizingFlexibleWidth; imageView.contentMode = UIViewContentModeScaleAspectFit; imageView.backgroundColor = [UIColor blackColor]; imageView.userInteractionEnabled = YES; [imageScrollView addSubview:imageView]; imageScrollView.contentSize = [imageView frame].size; } </code></pre> <p>The xib has a Photo View Controller->Scroll View->View structure. I have a feeling this is where the problem is. I tried to hook up all the outlets identically to the example, but under Referencing Outlets the example has a viewController hooked up to the ImageZoomingAppDelegate. Since my PhotoViewController is a subview, there's not a place to hook up the viewController like that.</p> <p>Here's how I bring up the PhotoViewController:</p> <pre><code>(IBAction) photoButtonPressed: (id) sender { viewController = [[PhotoViewController alloc] init]; [self.navigationController pushViewController:viewController animated:YES]; } </code></pre> <p>I know I must be just "this close" to having it all hooked up right, but I don't understand the relationship of the xib to the code well enough to know how to debug it. I'm not even sure if I know enough to ask the right questions.</p>
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