As part of UIKit Dynamics you can add Snap Behavior to a view, which allows
it to be “snapped” to a specific location. The view will move to its new
position as if it is pulled by a spring. In this tutorial we will let the
user click on the screen to "snap" an image into place. This
The UIVisualEffectView class can be used to apply visual effects to a view.
In this tutorial a darkened blur effect will be applied to an image. This
tutorial is made with Xcode 8.3.2 and built for iOS 10.3