create buttons iphone app

There are extra controls for the camera that are generally not used, and so are by default hidden from the UI, however they can be displayed. On the camera there needs to be a control (the "menu trigger") in the bottom left corner (represented by four dots in a vertical line). When tapped, this trigger should cause an overlay menu to appear on top of the camera preview that provides additional camera controls to the user. Deliverables The goal of this task is to implement the UI for the menu, and to have it correctly integrated with the view model (CameraViewModel). It's not required to actually make the view model update the state of the camera. For demonstration purposes it may be worthwhile creating some labels in the UI, and binding the view model to those labels to demonstrate the functionality of the menu controls. Showing the current state for outputs of the view model would be one way to demonstrate this.