How can one create buttons that mimic the buttons found on the Lock Screen in iOS 8? Notice the buttons have a UIVibrancyEffect applied to their circular borders, and when you tap on one the button background also shows the vibrant effect - the background shines through.
I have tried setting the opacity low and making the background white but it doesn't look the same without the UIVibrancyEffect applied.
The Beta version of Xcode 6 to work with Yosemite has some cool appearance settings which will get you the look you're after. You can simply place Visual Effects views behind your objects and choose vibrant as the appearance setting. It automatically inherits the windows behind with a semi transparent blurred effect.