Question

我想在swift中自定义UIAlertviewcontroller的控件，并在swift中更改Cancel和OK按钮的宽度和高度。有没有办法实现这个目标？Just similar to this

Answer 1

请尝试以下代码： -

//// 更改警报视图控制器的高度

*

let alertController = UIAlertController(title: nil, message: "hello", preferredStyle: .Alert)
    let cancelAction = UIAlertAction(title: "Cancel", style: .Cancel) { (action) in
        // hide action sheet
    }
    alertController.addAction(cancelAction)
    var height:NSLayoutConstraint = NSLayoutConstraint(item: alertController.view, attribute: NSLayoutAttribute.Height, relatedBy: NSLayoutRelation.Equal, toItem: nil, attribute: NSLayoutAttribute.NotAnAttribute, multiplier: 1, constant: self.view.frame.height * 0.80)
    alertController.view.addConstraint(height);
    self.presentViewController(alertController, animated: true, completion: nil)

*

我们可以在swift中更改UIAlertController按钮的高度和宽度

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