Embedding subview in main view Swift

Question

If you look at this image (I don't want to upload it, as it does not belong to me), you will see what appears to be a uiview inside the main uiview controller in the settings app of an iPad. My question is, how do I replicate this programatically? In other words, how do I embed a UIView in another?

Here's what I know and have done:

• Based on my research, this is called "subviews". Is this correct?
• I have created a UIView with the proper elements that I want in interface builder. It is currently not a subview, but at the same level hierarchically as my main view.
• I found the same exact question except in Obj-C, not my language (Swift).

Here's what I need:

• How do I programatically spawn a subview in swift once a button is clicked?
• As this subview is pretty complex in terms of UIelements, I want to be able to design it in interface builder.

Here's what I have so far:

 @IBAction func buttonPressedSpawnSubview(sender: AnyObject) {
    //Open a subview from Interface builder.
}
@IBAction func closeButtonPressedSpawnSubview(sender: AnyObject) {
        //kill the subview.

Can someone help me figure out how fill in the commented lines?

Answer 1

What you are seeing is a modal UIView on top of another view.

An example from within your visible ViewController would be:

    self.modalTransitionStyle = UIModalTransitionStyle.FlipHorizontal // Choose whatever transition you want
    self.modalPresentationStyle = .CurrentContext // Display on top of current UIView
    self.presentViewController(yourNewViewObject, animated: true, completion: nil)