Change NavigationBar background on UIDocumentInteractionController
<p>I have to pass a local PDF file (documents directory) from UIWebView to other apps (iBooks, Facebook Messenger, WhatsApp, ...).</p>

<p>So i use UIDocumentInteractionController:</p>

<pre><code>- (IBAction)shareButton:(id)sender
{
    NSURL *url = [NSURL URLWithString:self.webView.request.URL.absoluteString];

    self.docController = [UIDocumentInteractionController interactionControllerWithURL:url];
    self.docController.delegate = self;
    [self.docController presentOpenInMenuFromBarButtonItem:sender animated:YES];
}
</code></pre>

<p>If i select FB Messenger or WhatsApp it shows a ViewController. </p>

<p>How can i change the NavigationBar appearance of this VC (background image/color, button tint)? Default white translucent would be nice.</p>

<p>I set a NavigationBar background image in AppDelegate.</p>