let startPoint = CGPoint(x: self.view.frame.width - 60, y: 55)
let aView = UIView(frame: CGRect(x: 0, y: 0, width: self.view.frame.width, height: 180))
var popover = Popover()
popover.show(aView, point: startPoint)

@IBOutlet weak var leftBottomButton: UIButton!

let width = self.view.frame.width / 4
let aView = UIView(frame: CGRect(x: 0, y: 0, width: width, height: width))
let options = [
  .Type(.Up),
  .CornerRadius(width / 2),
  .AnimationIn(0.3),
  .BlackOverlayColor(UIColor.redColor()),
  .ArrowSize(CGSizeZero)
  ] as [PopoverOption]
var popover = Popover(options: options, showHandler: {
  println("showHandler")
  }, dismissHandler: {
    println("dismissHandler")
})
popover.show(aView, fromView: self.leftBottomButton)