Ios Iphone上的警报显示与Ipad上的不同

我希望我的iphone提醒看起来像ipad提醒

代码：

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我可以在上面的代码中添加什么使iphone警报看起来像ipad警报

警报只能在iPhone的视图/窗口底部显示。尝试使用第三方警报视图。看这里：

由于屏幕面积小，苹果选择在底部显示UIAlertView。您需要一个

    let alertController = UIAlertController(title: "Appcoda", message: "Message in alert dialog", preferredStyle: UIAlertControllerStyle.ActionSheet)

    let deleteAction = UIAlertAction(title: "Delete", style: UIAlertActionStyle.Destructive, handler: {(alert :UIAlertAction) in
        print("Delete button tapped")
    })
    alertController.addAction(deleteAction)

    let okAction = UIAlertAction(title: "OK", style: UIAlertActionStyle.Default, handler: {(alert :UIAlertAction) in
        print("OK button tapped")
    })
    alertController.addAction(okAction)

    alertController.popoverPresentationController?.sourceView = view
    alertController.popoverPresentationController?.sourceRect = sender.frame

    presentViewController(alertController, animated: true, completion: nil)