The FocusView is going to be used as an overlay view with a target image for touching focus points. This will be a CustomRenderer as we have to use native libraries for retrieving specific (x, y) coordinates on touch points.
Start with adding a new file into the Controls folder called FocusView.cs and implement the following:
public sealed class FocusView : RelativeLayout
{
#region Constant Properties
const int IMG_TARGET_BOUND = 100;
#endregion
#region Private Properties
private bool _isAnimating;
private bool _startingPointsAssigned;
private readonly CustomImage _focalTarget;
private Point _pStartingOrientation;
private Point _pFlippedOrientation;
#endregion
#region Public Events
public event EventHandler<Point...