The situation is pretty simple: a view controller at the top of our navigation controller's stack presents a modal view controller.
When the user's done with the modal view, he makes one of several choices that call the modal controller's delegate and cause the delegate to dismiss the modal view. The problem occurs if a memory warning comes through while the modal view is up. In that case, the view behind the modal view gets blown away. Normally, this isn't a problem; it's loaded from a XIB and designed to handle this situation anyway. And indeed, in two of the three ways that the user can dismiss the modal view, it works just fine. The third dismissal method leaves us with a blank white screen and a disabled app after the modal view is dismissed. There is only one difference in that case: The modal controller has presented a UIActionSheet to confirm the user's choice. If I add an action sheet to the other methods, they too cause the white screen. If I replace the UIActionSheet with a UIAlertView, the app works fine and the underlying view is redrawn as expected. Can anyone hazard a guess here? I'm handling the UIActionSheet with didDismissWithButtonIndex (which superseded clickedButtonWithIndex). I tried setting the ActionSheet's delegate to nil in this method, but no dice. I'm raising the ActionSheet with showFromBarButtonItem, but I also tried showInView:self.view. Through logging, I know that the view behind the modal view was reloaded and the XIB name was set correctly (viewDidLoad was called). But its viewWillAppear method was never called in the case where an ActionSheet was used by the overlying modal controller. When the ActionSheet isn't used by the modal controller, the underlying controller's viewWillAppear IS called and everything works fine. This was a pretty huge problem for our app, and before I file a bug I'd like to solicit insight on the issue. Thanks! Gavin _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
