Raising the events

We need to add code in the Exit() method to raise the events we created earlier, as follows:

1. Open Controls/SwiperControl.xaml.cs.
2. Add the following code in bold to the Exit() method:

private void Exit()
{
    Device.BeginInvokeOnMainThread(async () =>
    {
        var direction = photo.TranslationX < 0 ? -1 : 1;
 
        if (direction > 0)
        {
            OnLike?.Invoke(this, new EventArgs());
        }
 
        if (direction < 0)
        {
            OnDeny?.Invoke(this, new EventArgs());
        }
 
        await photo.TranslateTo(photo.TranslationX + (_screenWidth 
        * direction),
        photo.TranslationY, 200, Easing.CubicIn);
        var parent = Parent as Layout<View>;
        parent?.Children.Remove(this);
    });
}

Here, we inject the code to check whether we are liking or denying an image. We then raise the correct event based on this information.