AutoFitMode of ListView

AutoFit considers height of the item when SfListView.Orientation is vertical. When SfListView.Orientation is horizontal, it considers width of the item. The SfListView.GridLayout AutoFit all the items in a row and takes the maximum item height of the row and applies to all other items in the row.

<ContentPage xmlns:syncfusion="clr-namespace:Syncfusion.ListView.XForms;assembly=Syncfusion.SfListView.XForms">
  <syncfusion:SfListView x:Name="listView" 
                    ItemSize="200"
                    AutoFitMode="Height"
                    ItemsSource="{Binding BookInfo}" />
</ContentPage>

To know more about item size customization in ListView, please refer here.