PermissionPage.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="PermissionsUISample.Views.PermissionPage"
             Title="Permissions"
             BackgroundColor="White"
             xmlns:ios="clr-namespace:Xamarin.Forms.PlatformConfiguration.iOSSpecific;assembly=Xamarin.Forms.Core"
             ios:Page.UseSafeArea="true">
     <StackLayout>
          <CollectionView ItemsSource="{Binding PermissionsList}"
                          SelectionChangedCommand="{Binding OnSelectPermissionChangeCommand}"
                          SelectedItem="{Binding PermissionSelected, Mode=TwoWay}"
                          SelectionMode="Single">
            <CollectionView.ItemTemplate>
                <DataTemplate>
                    <Grid Padding="10"
                          RowSpacing="5">
                        <Grid.RowDefinitions>
                            <RowDefinition Height="Auto" />
                            <RowDefinition Height="Auto" />
                        </Grid.RowDefinitions>
                        <Grid.ColumnDefinitions>
                            <ColumnDefinition Width="Auto" />
                            <ColumnDefinition Width="*" />
                            <ColumnDefinition Width="Auto" />
                        </Grid.ColumnDefinitions>
                        <Image Grid.RowSpan="2"
                               Source="{Binding Icon}"
                               Aspect="AspectFill"
                               HeightRequest="60"
                               WidthRequest="60" />

                        <Label Grid.Column="1"
                               Text="{Binding Name}"
                               FontAttributes="Bold"
                               VerticalOptions="End"/>

                        <Label Grid.Row="1"
                               Grid.Column="1"
                               Text="{Binding Description}"
                               VerticalOptions="Start"
                               FontAttributes="Italic"/>

                        <CheckBox Grid.Row="0"
                                  Color="#6C8AAE"
                                  IsChecked="{Binding IsGranted}"
                                  Grid.RowSpan="2"
                                  Grid.Column="2"/>
                    </Grid>
                </DataTemplate>
             </CollectionView.ItemTemplate>
          </CollectionView>
          <Button Text="Next"
                  Command="{Binding GoHomeCommand}"
                  CornerRadius="0"
                  FontSize="20"
                  TextColor="#F9E0A9"
                  BackgroundColor="#6C8AAE" />
    </StackLayout>
</ContentPage>