CODEWITHSUNDEEP
iosobjective-cios7
Miguel Moreno
Miguel Moreno

Reputation: 107

ModalView crashes in iOS7

I'm having an app crash in iOS7, but is working on iOS6. While debugging the next code from my AppDelegate, I checked that in iOS7 the next function is executed and then the modal view controller is loaded.

- (void)presentModalWebViewWithURL:(NSURL *)url title:(NSString *)title
{
    [self.modalWebViewController dismissModalViewControllerAnimated:YES];
    self.modalWebViewController = [[[MyModalWebViewController alloc] initWithURL:url] autorelease];
    self.modalWebViewController.title = title;
    UINavigationController *nav = [self.modalWebViewController modalNavigationControllerWithTarget:self dismissSelector:@selector(dismissModalWebView)];
    [self.window.rootViewController presentViewController:nav animated:YES completion:NULL];
}

In iOS6, I checked that the function stops the execution in the last line until the modal view controller is loaded.

What happens in iOS7 is that when the modal view controller tries to load running viewWillAppear, I was able to check that the modal view controller has changed all the values and even the properties are pointing to objects of different types. I guess that they are being deallocated but I can't figure out why and how to fix it. Any suggestions?

Upvotes: 0

Views: 139

Answers (1)

Gavin
Gavin

Reputation: 8200

When you dismiss a modal view controller, you're supposed to call the dismiss method on the view controller that presented the view controller. Also the dismissModalViewControllerAnimated: method is deprecated, you should instead use dismissViewControllerAnimated:completion:. So looking at your code, you should probably be calling the dismiss method on self.window.rootViewController, since that's what you're presenting modal views from.

Also, not knowing how the rest of your code looks, I'm assuming the first time this gets called, self.modalWebViewController is nil, so you probably want to check if self.modalWebViewController is set to something before you call dismiss, and also to set it to nil any time you do dismiss it.

Upvotes: 1

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