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POMy iPhone app crashes after returning from background. Cause: UIImage problem
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copied!<p>First off, I want to say this site is AWESOME! and it helped me do lots of stuff while creating my iPhone app.</p> <p>Now, my problem is:</p> <p>When I launch my app, I have a UIImageView that loads an image depending on an if/else statements in</p> <p><code>-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event</code></p> <p>method. These images are assigned as follows:</p> <pre><code>BG.image = someImage; </code></pre> <p>of course, BG is the UIImageView, and someImage is an iVar with @property, @synthesis. someImage is initialized with an image from the main bundle in viewDidLoad:</p> <pre><code>- (void)viewDidLoad { //init stuff from file someImage = [UIImage imageNamed:@"FirstViewBG_5N.png"]; [super viewDidLoad];} </code></pre> <p>My app runs happily, loading images according to touchBegan (as mentioned), BUT!</p> <p>When my app is sent to background and comes back, it crashes upon first touch. </p> <p>When I replaced:</p> <pre><code>BG.image = someImage </code></pre> <p>with:</p> <pre><code>BG.image = [UIImage imageNamed:@"FirstViewBG_5N.png"]; </code></pre> <p>it runs happily?! I think the someImage is flushed or corrupts?</p> <p>I don't want to leave it like this because imageNamed method reads from disk every time, which will cause performance problems, i think?</p> <p>I think my question is clear? It is that:</p> <p>1- Why will my app crash after returning from backgroud 2- How do I solve this?</p> <p>All your help is appreciated! Thanks!</p>

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