PeoplePage.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="HW2.PeoplePage"
             NavigationPage.HasBackButton="True"
             NavigationPage.HasNavigationBar="False">
     <ListView x:Name="PersonView"  HasUnevenRows="True" >
          <ListView.ItemTemplate>
        <DataTemplate>
            <ViewCell>
                <Grid >
                    <Grid.RowDefinitions>
                        <RowDefinition Height="Auto" />
                        <RowDefinition Height="Auto" />
                        <RowDefinition Height="Auto" />
                    </Grid.RowDefinitions>
                    <Grid.ColumnDefinitions>
                        <ColumnDefinition Width="Auto" />
                        <ColumnDefinition Width="Auto" />
                    </Grid.ColumnDefinitions>
                    <Image Grid.RowSpan="3"
                            Source="{Binding imageurl}"
                            Aspect="AspectFit"
                            HeightRequest="100"
                            WidthRequest="80"
                            Margin="8"/>
                    <Label Grid.Row="0"
                           Grid.Column="1"
                           Text="{Binding name}"
                           Margin="10"/>
                    <Label Grid.Row="1"
                           Grid.Column="1"
                           Text="{Binding email}"
                           Margin="10"/>
                    <Label Grid.Row="2"
                           Grid.Column="1"
                           Text="{Binding phonenumber}"
                           Margin="10"/>
                   
                    <Grid.GestureRecognizers>
                        <TapGestureRecognizer CommandParameter="{Binding phonenumber}" Tapped="Handle_Tapped" NumberOfTapsRequired="1"/>
                    </Grid.GestureRecognizers>
                </Grid>
            </ViewCell>
        </DataTemplate>
    </ListView.ItemTemplate>
    </ListView>  
</ContentPage>