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• What causes this error? "CALayer position contains NaN: [240 nan]"

  - by Kevlar

  I've seen this happen whenever i rotate a screen that has a UITableView on it. I've found out that it happens inbetween the willRotate and didRotate method calls in UIViewController My co-workers have seen it in other spots as well, usually around rotation. It hadnt started happening until very recently, and we're stumped as to how we should deal with it (google searches don't turn up the error message in its exact form). Has anyone else encountered this that knows what to do about it?

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• how do i get a layer's frame to automatically resize based on its superlayer's frame or its view's f

  - by Kevlar

  I'm experimenting with using cagradientlayer to draw gradients in our app instead of having a subclass of uiview manage gradients. One snafu that i've come across is that when the view that has the gradient as a sublayer of its main layer gets resized to fit the data i am trying to show, the layer doesn't resize along with it. I end up having the gradient layer end at the original frame size while my view's frame is much larger. Is there a way to have the sublayer autoresize to fit its superlayer's frame, or the superlayer's view's frame?

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• does code in finally get run after a return in objective-c?

  - by Kevlar

  consider the following code: @try { if (something.notvalid) { return; } // do something else } @catch (NSException *ex) { // handle exception } @finally { NSLog(@"finally!"); } if something is not valid and i return from within the try, does the code in @finally execute or not? I believe that it should but others I've spoken to don't think so and i'm unable to test this at the moment.

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