How To Load Xamarin.Forms Sflistview With Background Image?

        <Grid>
            <Image Source="{Binding BackgroundImage}" Aspect="AspectFill"/>
            <syncfusion:SfListView x:Name="listView" SelectionMode="None" Margin="5"
                                   ItemSize="70"
                                   ItemsSource="{Binding contactsinfo}">
                <syncfusion:SfListView.GroupHeaderTemplate>
                    <DataTemplate>
                        <ViewCell>
                            <Label Text="{Binding Key}" TextColor="White" FontAttributes="Bold" FontSize="24"/>
                        </ViewCell>
                    </DataTemplate>
                </syncfusion:SfListView.GroupHeaderTemplate>

                <syncfusion:SfListView.ItemTemplate>
                    <DataTemplate>
                        <ViewCell>
                            <ViewCell.View>
                                <Grid x:Name="grid" RowSpacing="0">

                                    <Grid.RowDefinitions>
                                        <RowDefinition Height="*" />
                                        <RowDefinition Height="1" />
                                    </Grid.RowDefinitions>
                                    <Grid RowSpacing="0">
                                        <Grid.ColumnDefinitions>
                                            <ColumnDefinition Width="Auto" />
                                        </Grid.ColumnDefinitions>

                                        <Grid Grid.Column="1"
                          RowSpacing="1"
                          Padding="10,0,0,0"
                          VerticalOptions="Center">
                                            <Grid.RowDefinitions>
                                                <RowDefinition Height="*" />
                                                <RowDefinition Height="*" />
                                            </Grid.RowDefinitions>

                                            <Label  Text="{Binding ContactName}" TextColor="White" FontSize="18"/>
                                            <Label Grid.Row="1" Grid.Column="0" TextColor="White" FontSize="18"
                                                  Text="{Binding ContactNumber}">

                                            </Label>
                                        </Grid>
                                    </Grid>
                                </Grid>
                            </ViewCell.View>
                        </ViewCell>
                    </DataTemplate>
                </syncfusion:SfListView.ItemTemplate>

            </syncfusion:SfListView>
        </Grid>