DetailPage.xaml

<?xml version="1.0" encoding="UTF-8"?>
<ContentPage xmlns="http://xamarin.com/schemas/2014/forms"
             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
             x:Class="SharedTransitionPrimSample.Views.DetailPage"
             xmlns:sharedTransitions="clr-namespace:Plugin.SharedTransitions;assembly=Plugin.SharedTransitions"
             xmlns:prism="http://prismlibrary.com"
             NavigationPage.HasBackButton="False">
    <Grid BindingContext="{Binding PlaceSelected}"
          RowDefinitions="Auto, Auto,Auto"
          ColumnDefinitions="*">
            <Image Source="{Binding Image}"
                   sharedTransitions:Transition.Name="PlaceImage"
                   Aspect="AspectFill"
                   HorizontalOptions="FillAndExpand"
                   HeightRequest="400"
                   Grid.Row="0"/>

             <Button Text="←"
                     BackgroundColor="Black"
                     Margin="20,80,20,0"
                     Padding="0"
                     VerticalOptions="Start"
                     HorizontalOptions="Start"
                     TextColor="White"
                     FontSize="40"
                     Grid.Row="0"
                     Command="{prism:GoBack}"/>

             <Label Text="{Binding Title}"
                    FontSize="Title"
                    HorizontalOptions="Center"
                    Grid.Row="1"/>

             <Label Text="{Binding Description}"               
                    FontSize="Small"
                    FontAttributes="Italic"
                    Padding="10,0"
                    Grid.Row="2"/>
        </Grid>
</ContentPage>