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POwhose view is not in the window hierarchy - email form
 

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  1. POwhose view is not in the window hierarchy - email form
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    <p>I'm calling a method from viewcontroller in an appdelegate. When I was testing functionality I just used NSLog message which works fine (so the connection between viewcontroller and appdelegate is OK). The problem appears once I add a email form into this method. The message I receive is: </p> <pre><code>Warning: Attempt to present &lt;MFMailComposeViewController: 0x1fdc3990&gt; on &lt;ViewController: 0x1fd9e3b0&gt; whose view is not in the window hierarchy! </code></pre> <p>Anyone who know what to do? I know there are lot of topics with 'whose view is not in the window hierarchy' issue but none of them helped me.</p> <p>ViewController.m </p> <pre><code>... -(void)mail{ NSLog(@"blablabla"); if ([MFMailComposeViewController canSendMail]) { MFMailComposeViewController *mail = [[MFMailComposeViewController alloc] init]; mail.mailComposeDelegate = self; [mail setSubject:@"Hello and welcome!"]; NSArray *toRecipients = [NSArray arrayWithObject:@"tomas.javnicky@gmail.com"]; [mail setToRecipients:toRecipients]; [mail setCcRecipients:toRecipients]; NSString *emailBody = @"Hey all!"; [mail setMessageBody:emailBody isHTML:NO]; mail.modalPresentationStyle = UIModalPresentationPageSheet; [self presentViewController:mail animated:YES completion:nil]; } else { UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Error!" message:@"E-mail is not supported on your device" delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil]; [alert show]; } } -(void)mailComposeController:(MFMailComposeViewController *)controller didFinishWithResult:(MFMailComposeResult)result error:(NSError *)error{ switch (result) { case MFMailComposeResultCancelled: break; case MFMailComposeResultSaved: NSLog(@"mail saved"); break; case MFMailComposeResultSent: NSLog(@"mail sent"); break; case MFMailComposeResultFailed: NSLog(@"mail failed"); break; } [self dismissViewControllerAnimated:YES completion:nil]; } ... </code></pre> <p>Appdelegate.m</p> <pre><code>... -(void)something { ViewController * vc = [[ViewController alloc] init]; [vc mail]; } ... </code></pre> <p>This is what solved my problem:</p> <pre><code>- (void)something { ViewController *rootViewController = (ViewController*)self.window.rootViewController; [rootViewController mail]; } </code></pre> <p>Also check the answer by rmaddy for more info.</p>
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    1. USTomasJ
    1. USTomasJ
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    1. COUpdate your question with the code used to show the mail composer.
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      1. USrmaddy
    2. COCheck it now please
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      1. POwhose view is not in the window hierarchy - email form
      1. USTomasJ
 

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