This article explains how to hide the selection indicator in .NET MAUI TabView. The selection indicator highlights the currently selected tab. If you need to hide this indicator, you can set the IndicatorStrokeThickness property to 0.

Instead of using an indicator, you can highlight the selected tab by changing its TextColor property using the VisualStateManager. The following example demonstrates how to achieve this:

<ContentPage.Resources>
    <Style TargetType="tabView:SfTabItem">
        <Setter Property="VisualStateManager.VisualStateGroups">
            <VisualStateGroupList>
                <VisualStateGroup>
                    <VisualState x:Name="Normal" >
                        <VisualState.Setters>
                            <Setter Property="TextColor" Value="Brown" />
                        </VisualState.Setters>
                    </VisualState>
                    <VisualState x:Name="Selected">
                        <VisualState.Setters>
                            <Setter Property="TextColor" Value="Green" />
                        </VisualState.Setters>
                    </VisualState>
                </VisualStateGroup>
            </VisualStateGroupList>
        </Setter>
    </Style>
</ContentPage.Resources>
<tabView:SfTabView x:Name="tabView" IndicatorStrokeThickness="0">
    <tabView:SfTabView.Items>
        <tabView:SfTabItem Header="Call" x:Name="callItem" ImageTextSpacing="3"
                     ImagePosition="Top" >
            <tabView:SfTabItem.ImageSource>
                <FontImageSource Glyph="&#xfeb6;" x:Name="call"
                                 Color="{Binding Source={x:Reference callItem},Path=TextColor}"
                             FontFamily="MaterialDesignIcons"/>
            </tabView:SfTabItem.ImageSource>
            <tabView:SfTabItem.Content>
                <ListView RowHeight="50">
                    <ListView.ItemsSource>
                        <x:Array Type="{x:Type x:String}">
                            <x:String>James</x:String>
                            <x:String>Richard</x:String>
                            <x:String>Michael</x:String>
                            <x:String>Alex</x:String>
                            <x:String>Clara</x:String>
                        </x:Array>
                    </ListView.ItemsSource>
                    <ListView.ItemTemplate>
                        <DataTemplate>
                            <ViewCell>
                                <Grid Margin="10,5">
                                    <Label VerticalOptions="Start"
                                           HorizontalOptions="Start"
                                           TextColor="#666666"
                                           FontSize="16"
                                           Text="{Binding}" />
                                </Grid>
                            </ViewCell>
                        </DataTemplate>
                    </ListView.ItemTemplate>
                </ListView>
            </tabView:SfTabItem.Content>
        </tabView:SfTabItem>
        <!-- Add TabItems -->
    </tabView:SfTabView.Items>
</tabView:SfTabView>

This customization is useful when you want a minimalistic design or if you are implementing a custom visual style for the selected tab.

Output