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POBackground image too large in window/view
 

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    <p>I am playing around with a very small single view application in order to understand how views work. I am extremely new to iOS development. I am using an image i put together as a background for my only view. When running the app my background is enormous. It's as if it is zoomed in or scaled. I am following a Big Nerd Ranch tutorial for views and as such I'm using a subclass of UIView called HypnosisView. This is temporary. It may also we worth noting that the image I am trying to use for a background is precisely 640 x 1136 pixels.</p> <pre><code>- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]]; // Override point for customization after application launch. CGRect viewFrame = CGRectMake(0, 0, 640, 1136); HypnosisView *view = [[HypnosisView alloc] initWithFrame:viewFrame]; [view setBackgroundColor:[UIColor colorWithPatternImage:[UIImage imageNamed:@"BG.png"]]]; [[self window] addSubview:view]; self.window.backgroundColor = [UIColor blackColor]; [self.window makeKeyAndVisible]; return YES; } </code></pre> <p>Updated code trying to implement a UIImageView using a 0, 0, 320, 568 frame. I also created a 320 sized background and then a full sized background and named them with the proper titles. </p> <pre><code>- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]]; // Override point for customization after application launch. CGRect viewFrame = CGRectMake(0, 0, 320, 568); UIImage *background = [UIImage imageNamed:@"background@2x.png"]; UIImageView *backgroundView = [[[UIImageView alloc] initWithImage:background] initWithFrame:viewFrame]; [[self window] addSubview:backgroundView]; [[self window] sendSubviewToBack:backgroundView]; self.window.backgroundColor = [UIColor clearColor]; [self.window makeKeyAndVisible]; return YES; } </code></pre>
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    1. COSo the image you have is 640 by 1136 but you say that when it displays in your UIView, the image is actually larger than 640 by 1136?
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    2. COIt would appear so. It's like I can only see the top left quarter of the image.
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    3. COThe maximum viewable area of a UIView in iPhone 5 is only 320 x 568. If your image is larger than that area, you will see only a portion of it. See my answer below.
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