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POHow to display an image using UIView in XCode?
 

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  1. POHow to display an image using UIView in XCode?
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    <p>Absolutely beginner question. I am trying to make an app which will switch an array of images by swiping the screen sideways. So, as vanilla case of that I was trying to display an image first and then think about how to switch between images using an action. I am using XCode 4.2. </p> <p>So, here's what I have so far. I have added a UIImageView to my storyboard, then Ctrl+dragged into the ".h" file to create an Outlet and it looks something like this:</p> <h3>SwitchViewController.h</h3> <pre><code>#import &lt;UIKit/UIKit.h&gt; @interface SwitchViewController : UIViewController @property (weak, nonatomic) IBOutlet UIImageView *imageView; @end </code></pre> <p>And then in the ".m" file, I am trying to set an image to the UIImageView in the DidLoad method.</p> <h3>SwitchViewController.m</h3> <pre><code>#import "SwitchViewController.h" @implementation SwitchViewController @synthesize imageView; - (void)didReceiveMemoryWarning { [super didReceiveMemoryWarning]; // Release any cached data, images, etc that aren't in use. } #pragma mark - View lifecycle - (void)viewDidLoad { [super viewDidLoad]; // Do any additional setup after loading the view, typically from a nib. UIImage *plate1 = [UIImage imageNamed:@"plates1.tif"]; [imageView setImage:plate1]; } - (void)viewDidUnload { [self setImageView:nil]; [super viewDidUnload]; // Release any retained subviews of the main view. // e.g. self.myOutlet = nil; } - (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation { if ((interfaceOrientation == UIInterfaceOrientationLandscapeRight) || (interfaceOrientation == UIInterfaceOrientationLandscapeLeft)) return YES; return NO; } @end </code></pre> <p>Now, if I try to run this, there are no compilation errors. <br/>But the program halts saying, <em>Thread 1:Program received signal "SIGABRT"</em></p>
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    1. USAshin Mandal
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      1. POHow to display an image using UIView in XCode?
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    1. COProbably an exception being thrown. Can you show us the output on the console in Xcode please?
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      1. POHow to display an image using UIView in XCode?
      1. USmattjgalloway
    2. COIs the IBOutlet connected to the `UIImageView` in the .xib? Also you should use `[self.imageView setImage:plate1];`
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      1. POHow to display an image using UIView in XCode?
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    3. COThanks a lot, @mattjgalloway. The console is going something like this. 2012-01-26 22:04:40.728 Switch-a-Switch[548:f803] *** Terminating app due to uncaught exception 'NSUnknownKeyException', reason: '[<SwitchViewController 0x6840660> setValue:forUndefinedKey:]: this class is not key value coding-compliant for the key UIImageView.'
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