title: Add custom view in UIAlertController in iOS
body: <p>I have used below code to show action sheet with Tweet, Facebook and Cancel button.</p>
  
  <pre><code>- (void)shareApp:(id)sender {
      NSString *strCancel = NSLocalizedString(@"Cancel", nil);
      NSString *strTweet = NSLocalizedString(@"Tweet", nil);
      NSString *strFacebook = NSLocalizedString(@"Facebook", nil);
  
      UIAlertController *alertController = [UIAlertController alertControllerWithTitle:NSLocalizedString(@"Share your app", nil) message:nil preferredStyle:UIAlertControllerStyleActionSheet];
  
      // Create the actions.
      UIAlertAction *cancelAction = [UIAlertAction actionWithTitle:strCancel style:UIAlertActionStyleCancel
                                                           handler:^(UIAlertAction *action) {
                                              NSLog(@"Cancel action occured");
                                  }];
  
      UIAlertAction *tweetAction = [UIAlertAction actionWithTitle:strTweet style:UIAlertActionStyleDefault
                                                          handler:^(UIAlertAction *action) {
                                                              NSLog(@"Tweet action here");
                                                          }];
  
      UIAlertAction *facebookAction = [UIAlertAction actionWithTitle:strFacebook style:UIAlertActionStyleDefault
                                                          handler:^(UIAlertAction *action) {
                                                              NSLog(@"Facebook action here");
                                                          }];
  
      // Add the actions.
      [alertController addAction:cancelAction];
      [alertController addAction:tweetAction];
      [alertController addAction:facebookAction];
  
      [self presentViewController:alertController animated:YES completion:nil];
  }
  </code></pre>
  
  <p><img src="https://i.stack.imgur.com/3ioLz.png" alt="Screenshot"></p>
  
  <p>Now, I want to add <em>custom view i.e. logo + tweet on each element</em> of action sheet. </p>
  
  <p><img src="https://i.stack.imgur.com/c90fL.png" alt="Desired screenshot"></p>
  
  <p>How can this be implemented?</p>