UIAlertController圆角矩形文本字段

Question

I'm having some problems setting up the textfield for my UIAlertController .

I'm using this code to add a rounded textfield to the alertcontroller :

[alertController addTextFieldWithConfigurationHandler:^(UITextField *textField) {
  textField.placeholder = @"placeholder";
  textField.borderStyle = UITextBorderStyleRoundedRect;
}];

However, the result is this:

How do I remove the outer border and background color ? So it looks like what they have in this tutorial: http://useyourloaf.com/blog/2014/09/05/uialertcontroller-changes-in-ios-8.html .

Thanks!

Answer 1

尝试将UItextView的背景颜色设置为[UIColor clearColor]

Answer 2

try

for textField in alertController.textFields! {
    if let container = textField.superview, let effectView = container.superview?.subviews.first where effectView is UIVisualEffectView {
       container.backgroundColor = UIColor.clearColor()
       effectView.removeFromSuperview()
    }
}