<StackLayout>
            <Picker
                x:Name="FruitsPicker"
                Title="Select a Fruit"
                TitleColor="Blue"
                ItemDisplayBinding="{Binding FruitName}" 
                SelectedItem="{Binding SelectedFruit}"
			    SelectedIndexChanged="OnSelectedIndexChanged" />
        </StackLayout>
                

        public partial class MainPage : ContentPage
        {
            public class Fruit
            {
                public string FruitName { get; set; }
                public string FruitDescription { get; set; }        
            }
        
            ObservableCollection fruits = new ObservableCollection();
            public ObservableCollection Fruits { get { return fruits; } }
            public MainPage()
            {
                InitializeComponent();        
                fruits.Add(new Fruit() { FruitName = "Apple", FruitDescription = "An apple is an edible fruit produced by an apple tree (Malus domestica)." });
                fruits.Add(new Fruit() { FruitName = "Orange", FruitDescription = "The orange is the fruit of various citrus species in the family Rutaceae." });
                fruits.Add(new Fruit() { FruitName = "Banana", FruitDescription = "A long curved fruit with soft pulpy flesh and yellow skin when ripe." });
                fruits.Add(new Fruit() { FruitName = "Grape", FruitDescription = "A berry growing in clusters on a grapevine, eaten as fruit and used in making wine." });
                fruits.Add(new Fruit() { FruitName = "Mango", FruitDescription = "A mango is an edible stone fruit produced by the tropical tree Mangifera indica." });
                FruitsPicker.ItemsSource = fruits;
            }                    
            private void OnSelectedIndexChanged(object sender, EventArgs e)
            {
                Fruit selectedFruit = ((Picker)sender).SelectedItem as Fruit;
                Console.WriteLine(selectedFruit.FruitName);
            }
        }