How to hide title/message frame in a UIAlertController?

When using a `UIAlertController`, if I want to present a `UIActionSheet` with an empty title and an empty message, the frame for the expected placement of the title and/or message remains.

How do I change this so that I only present an `ActionSheet` that reads:
<br>
<br>
Settings
<br>
Sign out
<br>
Cancel
?

Thanks!

![UIAlertController example][1]


[1]:

if you want to remove Alert controller top area space. Add Alert controller height


let height:NSLayoutConstraint = NSLayoutConstraint(item: alert.view, attribute: NSLayoutConstraint.Attribute.height, relatedBy: NSLayoutConstraint.Relation.equal, toItem: nil, attribute: NSLayoutConstraint.Attribute.notAnAttribute, multiplier: 1, constant: 100)
alert.view.addConstraint(height);

[enter image description here][1]


[1]:

**Update Swift 4:**

let alert = UIAlertController(title: nil, message: nil, preferredStyle: UIAlertControllerStyle.actionSheet)

Just need to pass `nil` to `title` and `message` params.

In swift 2.2, you can use code below and I have also changed the color of signout action button



let actionSheet: UIAlertController = UIAlertController(title: nil, message: nil, preferredStyle: .ActionSheet)

self.presentViewController(actionSheet, animated: true, completion: nil)

let settingsActionButton: UIAlertAction = UIAlertAction(title: "Settings", style: .Cancel) { action -> Void in
print("Settings Tapped")
}

reportActionSheet.addAction(settingsActionButton)

let signOutActionButton: UIAlertAction = UIAlertAction(title: "Signout", style: .Default)
{ action -> Void in
//Clear All Method
print("Signout Tapped")

}

signOutActionButton.setValue(UIColor.redColor(), forKey: "titleTextColor")

actionSheet.addAction(signOutActionButton)

let cancelActionButton: UIAlertAction = UIAlertAction(title: "Cancel", style: .Cancel) { action -> Void in
print("Cancel Tapped")
}

reportActionSheet.addAction(cancelActionButton)

If you want to change in run time depending on a certain case just write:

`actionController.title = nil`
`actionController.message = nil`

UIAlertController *controller=[UIAlertController alertControllerWithTitle:@"" message:@"" preferredStyle:UIAlertControllerStyleAlert];//style check


UIAlertAction *first = [UIAlertAction actionWithTitle: @"Login with Facebook" style: UIAlertActionStyleDefault handler:^(UIAlertAction *action)
{
//write to perform action

}];


[controller addAction: first];



UIAlertAction *second = [UIAlertAction actionWithTitle: @"Guest User" style: UIAlertActionStyleDefault handler:^(UIAlertAction *action)

{
//write to perform action

}];

[controller addAction:second];


UIAlertAction *third=[UIAlertAction actionWithTitle:@"Registered User" style:UIAlertActionStyleDefault handler:^(UIAlertAction *action)


{
//write to perform action

}];

[controller addAction:third];

[self presentViewController: controller animated: YES completion: nil];

When I create a UIAlertController with this code I don't have the title spacing.

[UIAlertController alertControllerWithTitle:nil
message:nil
preferredStyle:UIAlertControllerStyleActionSheet];

Are you passing in nil for the title and message or empty strings?