//Rating gesture
public void RatingChanged(TapGestureRecognizer tapGestureRecognizer)
{
tapGestureRecognizer.Tapped += (sender, e) =>
{
//Check which button is pressed
Image pressedImage = (Image)sender;
beer.rating = (pressedImage.ClassId.Equals("plus")) ? beer.rating += 1 : beer.rating -= 1;
//Bounds
if (beer.rating > 10)
beer.rating = 10;
if (beer.rating < 1)
beer.rating = 0;
//Change textcolor/image depending on rating
beerColor = (beer.rating > 5) ? Color.Green : Color.Red;
lblRating.TextColor = beerColor;
beer.approval = (beerColor.Equals(Color.Green)) ? true : false;
imgApprove.Source = (beer.approval) ? ImageSource.FromFile("like.png") : ImageSource.FromFile("nlike.png");
lblRating.Text = "Rating: " + beer.rating.ToString() + "/10";
};
}