How to change the ListView selected item text color in Xamarin.Forms (SfListView)

In Xamarin.Forms ListView, you can change the text color of selected item by using SelectionChanging event.

You can also refer the following article.

https://www.syncfusion.com/kb/11363/how-to-change-the-listview-selected-item-text-color-in-xamarin-forms-sflistview

C#

TextColor updated in SelectionChanging event, based on selection added or removed.

public class Behavior : Behavior<SfListView>
{
    SfListView listView;
    protected override void OnAttachedTo(SfListView bindable)
    {
        listView = bindable;
        listView.SelectionChanging += ListView_SelectionChanging;
        base.OnAttachedTo(bindable);
    }
 
    private void ListView_SelectionChanging(object sender, ItemSelectionChangingEventArgs e)
    {
        if (listView.SelectionMode == Syncfusion.ListView.XForms.SelectionMode.Single)
        {
            if (e.AddedItems.Count > 0)
            {
                var item = e.AddedItems[0] as Contacts;
                item.LabelTextColor = Color.Red;
            }
            if (e.RemovedItems.Count > 0)
            {
                var item = e.RemovedItems[0] as Contacts;
                item.LabelTextColor = Color.Black;
            }
        }
    }
 
    protected override void OnDetachingFrom(SfListView bindable)
    {
        listView.SelectionChanging -= ListView_SelectionChanging;
 
        base.OnDetachingFrom(bindable);
    }
}

XAML

LabelTextColor bound to the Label added to SfListView in the ItemTemplate and Behaviour.

<syncfusion:SfListView x:Name="listView" ItemSpacing="1" SelectionMode="Single"
                        SelectionBackgroundColor="LightGray" AutoFitMode="Height" 
                        ItemsSource="{Binding contactsinfo}">
    <syncfusion:SfListView.Behaviors>
        <local:Behavior/>
    </syncfusion:SfListView.Behaviors>
    <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="70" />
                                <ColumnDefinition Width="*" />
                                <ColumnDefinition Width="Auto" />
                            </Grid.ColumnDefinitions>
 
                            <Image Source="{Binding ContactImage}"
                                    VerticalOptions="Center"
                                    HorizontalOptions="Center"
                                    HeightRequest="50" WidthRequest="50"/>
 
                            <Grid Grid.Column="1" RowSpacing="1" Padding="10,0,0,0" VerticalOptions="Center">
                                <Grid.RowDefinitions>
                                    <RowDefinition Height="*" />
                                    <RowDefinition Height="*" />
                                </Grid.RowDefinitions>
 
                                <Label LineBreakMode="NoWrap"  Text="{Binding ContactName}" 
                                        TextColor="{Binding LabelTextColor}"/>
                                <Label Grid.Row="1" Grid.Column="0"
                                        TextColor="{Binding LabelTextColor}"
                                        LineBreakMode="NoWrap" Text="{Binding ContactNumber}"/>
                            </Grid>
                        </Grid>
                    </Grid>
                </ViewCell.View>
            </ViewCell>
        </DataTemplate>
    </syncfusion:SfListView.ItemTemplate>
</syncfusion:SfListView>

Output