UWP unfocused VisualState overriding selected VisualState on ListViewItem - xaml

I have a ListView that is using a custom style on its ItemContainerStyle property.
The problem is that when I use a keyboard to navigate through the items in the list, if I navigate to the currently-selected item, it gets the focused style (which is good), but then the moment I navigate away from that item it starts using the unfocused style instead of the selected style.
For example, let's say item 3 out of 5 is selected in the ListView. It'll look like this before the list gets focus, which is correct:
Then I use my keyboard to navigate to the list, which applies the "focused" style to the selected item, which is fine...
But then I navigate down by pressing the down arrow key, and suddenly the third item is no longer looks "selected." It looks like it's just a normal unselected item:
This is happening because the "unfocused" state is overriding the "selected" visual state of the third item, but I want it to be the other way around.
Note: I have SingleSelectionFollowsFocus="False" on the ListView.
If I remove the "unselected" state, then moving the focus from the third item makes any item that I navigate to look like it's currently getting the focused state... if I could figure out why this is happening, then I could safely remove the "unselected" state, and it would work fine.
How can I retain the "selected" visual state of the selected item after unfocusing it?
Here's my code:
XAML:
<ListView x:Name="ThingieListView"
ItemsSource="{x:Bind viewModel.ThingieDataList}"
SingleSelectionFollowsFocus="False"
SelectionMode="Single"
IsItemClickEnabled="True"
XYFocusRight="{x:Bind LocationListView}"
Margin="8"
Width="256"
IsTabStop="True"
TabIndex="0"
LostFocus="ThingieListView_LostFocus"
GotFocus="ThingieListView_GotFocus"
ItemClick="ThingieListView_OnItemClick"
ItemContainerStyle="{StaticResource SelectThingieItemStyle}">
<ListView.ItemTemplate>
<DataTemplate>
<ListViewItem Content="{Binding DisplayValue}" />
</DataTemplate>
</ListView.ItemTemplate>
</ListView>
Custom Style:
<Style x:Key="SelectThingieItemStyle" TargetType="ListViewItem">
<Setter Property="FontFamily" Value="{StaticResource Res-FontFamily}"/>
<Setter Property="FontSize" Value="{StaticResource FontSizeText2}"/>
<Setter Property="Background" Value="{ThemeResource ListViewItemBackground}"/>
<Setter Property="Foreground" Value="{ThemeResource ListViewItemForeground}"/>
<Setter Property="TabNavigation" Value="Local"/>
<Setter Property="IsHoldingEnabled" Value="True"/>
<Setter Property="Padding" Value="0,0,0,0"/>
<Setter Property="HorizontalContentAlignment" Value="Left"/>
<Setter Property="VerticalContentAlignment" Value="Center"/>
<Setter Property="MinWidth" Value="{ThemeResource ListViewItemMinWidth}"/>
<Setter Property="MinHeight" Value="{ThemeResource ListViewItemMinHeight}"/>
<Setter Property="AllowDrop" Value="False"/>
<Setter Property="UseSystemFocusVisuals" Value="{StaticResource UseSystemFocusVisuals}"/>
<Setter Property="FocusVisualMargin" Value="0"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="ListViewItem">
<ListViewItemPresenter x:Name="Root"
CheckBrush="{ThemeResource ListViewItemCheckBrush}"
ContentMargin="15"
Height="63"
Margin="0 0 0 1"
CheckBoxBrush="{ThemeResource ListViewItemCheckBoxBrush}"
ContentTransitions="{TemplateBinding ContentTransitions}"
CheckMode="{ThemeResource ListViewItemCheckMode}"
DragOpacity="{ThemeResource ListViewItemDragThemeOpacity}"
DisabledOpacity="{ThemeResource ListViewItemDisabledThemeOpacity}"
DragBackground="{ThemeResource ListViewItemDragBackground}"
DragForeground="{ThemeResource ListViewItemDragForeground}"
FocusBorderBrush="{ThemeResource ListViewItemFocusBorderBrush}"
FocusVisualMargin="{TemplateBinding FocusVisualMargin}"
FocusVisualPrimaryThickness="0"
FocusSecondaryBorderBrush="{ThemeResource ListViewItemFocusSecondaryBorderBrush}"
HorizontalContentAlignment="{TemplateBinding HorizontalContentAlignment}"
Control.IsTemplateFocusTarget="True"
PressedBackground="{ThemeResource ListViewItemBackgroundPressed}"
PlaceholderBackground="{ThemeResource ListViewItemPlaceholderBackground}"
PointerOverForeground="{ThemeResource ListViewItemForegroundPointerOver}"
PointerOverBackground="{ThemeResource ListViewItemBackgroundPointerOver}"
RevealBorderThickness="{ThemeResource ListViewItemRevealBorderThemeThickness}"
ReorderHintOffset="{ThemeResource ListViewItemReorderHintThemeOffset}"
RevealBorderBrush="{ThemeResource ListViewItemRevealBorderBrush}"
RevealBackground="{ThemeResource ListViewItemRevealBackground}"
SelectedForeground="{ThemeResource ListViewItemForegroundSelected}"
SelectionCheckMarkVisualEnabled="{ThemeResource ListViewItemSelectionCheckMarkVisualEnabled}"
SelectedBackground="{ThemeResource ListViewItemBackgroundSelected}"
SelectedPressedBackground="{ThemeResource ListViewItemBackgroundSelectedPressed}"
SelectedPointerOverBackground="{ThemeResource ListViewItemBackgroundSelectedPointerOver}"
VerticalContentAlignment="{TemplateBinding VerticalContentAlignment}">
<VisualStateManager.VisualStateGroups>
<VisualStateGroup x:Name="CommonStates">
<VisualState x:Name="Normal">
<VisualState.Setters>
<Setter Target="Root.Foreground" Value="{StaticResource Res-White}"/>
<Setter Target="Root.RevealBackground" Value="{StaticResource Res-Gray_2}"/>
<Setter Target="Root.RevealBorderBrush" Value="{StaticResource Res-Gray_1}"/>
<Setter Target="Root.RevealBorderThickness" Value="0"/>
</VisualState.Setters>
</VisualState>
<VisualState x:Name="Selected">
<VisualState.Setters>
<Setter Target="Root.Foreground" Value="{StaticResource Res-White}"/>
<Setter Target="Root.RevealBorderBrush" Value="{StaticResource Res-Black}"/>
<Setter Target="Root.FontWeight" Value="Bold"/>
<Setter Target="Root.RevealBorderThickness" Value="0"/>
<Setter Target="Root.RevealBackground" Value="{StaticResource Res-Gray_4}"/>
</VisualState.Setters>
</VisualState>
<VisualState x:Name="PointerOver">
<VisualState.Setters>
<Setter Target="Root.RevealBackground" Value="{StaticResource Res-Gray_2}"/>
<Setter Target="Root.RevealBorderThickness" Value="3"/>
<Setter Target="Root.Foreground" Value="{StaticResource Res-White}"/>
<Setter Target="Root.RevealBorderBrush" Value="{StaticResource Res-Orange}"/>
</VisualState.Setters>
</VisualState>
<VisualState x:Name="PointerOverSelected">
<VisualState.Setters>
<Setter Target="Root.RevealBackground" Value="{StaticResource Res-Gray_4}"/>
<Setter Target="Root.RevealBorderThickness" Value="3"/>
<Setter Target="Root.Foreground" Value="{StaticResource Res-White}"/>
<Setter Target="Root.RevealBorderBrush" Value="{StaticResource Res-Orange}"/>
</VisualState.Setters>
</VisualState>
<VisualState x:Name="PointerOverPressed">
<VisualState.Setters>
<Setter Target="Root.RevealBackground" Value="{StaticResource Res-Gray_2}"/>
<Setter Target="Root.RevealBorderThickness" Value="3"/>
<Setter Target="Root.Foreground" Value="{StaticResource Res-Black}"/>
<Setter Target="Root.RevealBorderBrush" Value="{StaticResource Res-Orange}"/>
</VisualState.Setters>
</VisualState>
<VisualState x:Name="Pressed">
<VisualState.Setters>
<Setter Target="Root.RevealBorderThickness" Value="3"/>
<Setter Target="Root.RevealBorderBrush" Value="{StaticResource Res-Orange}"/>
<Setter Target="Root.FontWeight" Value="Bold"/>
<Setter Target="Root.Foreground" Value="{StaticResource Res-White}"/>
<Setter Target="Root.RevealBackground" Value="{StaticResource Res-Orange}"/>
</VisualState.Setters>
</VisualState>
<VisualState x:Name="PressedSelected">
<VisualState.Setters>
<Setter Target="Root.RevealBorderThickness" Value="3"/>
<Setter Target="Root.RevealBorderBrush" Value="{StaticResource Res-Orange}"/>
<Setter Target="Root.FontWeight" Value="Bold"/>
<Setter Target="Root.Foreground" Value="{StaticResource Res-White}"/>
<Setter Target="Root.RevealBackground" Value="{StaticResource Res-Orange}"/>
</VisualState.Setters>
</VisualState>
</VisualStateGroup>
<VisualStateGroup x:Name="FocusedStates">
<VisualState x:Name="Focused">
<VisualState.Setters>
<Setter Target="Root.FontWeight" Value="Bold"/>
<Setter Target="Root.Foreground" Value="{StaticResource Res-Black}"/>
<Setter Target="Root.RevealBackground" Value="{StaticResource Res-White}"/>
<Setter Target="Root.RevealBorderThickness" Value="0 0 20 0"/>
<Setter Target="Root.RevealBorderBrush" Value="{StaticResource Res-Orange}"/>
</VisualState.Setters>
</VisualState>
<VisualState x:Name="Unfocused">
<VisualState.Setters>
<Setter Target="Root.Foreground" Value="{StaticResource Res-White}"/>
<Setter Target="Root.RevealBackground" Value="{StaticResource Res-Gray_2}"/>
<Setter Target="Root.RevealBorderBrush" Value="{StaticResource Res-Gray_1}"/>
<Setter Target="Root.RevealBorderThickness" Value="0 1 0 1"/>
</VisualState.Setters>
</VisualState>
</VisualStateGroup>
<VisualStateGroup x:Name="DisabledStates">
<VisualState x:Name="Enabled"/>
<VisualState x:Name="Disabled">
<VisualState.Setters>
<Setter Target="Root.RevealBorderThickness" Value="0"/>
</VisualState.Setters>
</VisualState>
</VisualStateGroup>
</VisualStateManager.VisualStateGroups>
</ListViewItemPresenter>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>

How can I retain the "selected" visual state of the selected item after unfocusing it?
As you mentioned, the "unfocused" state will override the "selected" state, if you want to display the "selected" state, you could try to trigger the "selected" visual state manually when the selected item loses focus in the VesselListView_LostFocus event. First determine if the item that loses focus is selected, if it is, you could trigger the "selected" state. For example:
private void VesselListView_LostFocus(object sender, RoutedEventArgs e)
{
ListViewItem litem = e.OriginalSource as ListViewItem;
if (litem != null && litem.IsSelected == true)
{
VisualStateManager.GoToState(litem, "Selected", false);
}
}

Related

How to change the background color of selected item of dropdown menu in a ComboBox (UWP/XAML)

I'm struggling to handle the styling for the ComboBox control, more specifically, from drop-down menu the selected item's background color.
Is there a specific theme key color that the selected item takes?
On the example below the background color i want to change is the lighter grey one.
If you want to change the style of the ComboBoxItem, you will need to modify the default style of the ComboBoxItem. The ComboBoxItem is using some system value as the background for different states. I've made a simple demo which you could refer to.
Xaml:
<Page.Resources>
<Style TargetType="ComboBoxItem" x:Key="MyItemStyle">
<Setter Property="Foreground" Value="{ThemeResource ComboBoxItemForeground}" />
<Setter Property="Background" Value="{ThemeResource ComboBoxItemRevealBackground}" />
<Setter Property="BorderBrush" Value="{ThemeResource ComboBoxItemRevealBorderBrush}" />
<Setter Property="BorderThickness" Value="{ThemeResource ComboBoxItemRevealBorderThemeThickness}" />
<Setter Property="TabNavigation" Value="Local" />
<Setter Property="Padding" Value="{ThemeResource ComboBoxItemRevealThemePadding}" />
<Setter Property="HorizontalContentAlignment" Value="Stretch" />
<Setter Property="UseSystemFocusVisuals" Value="{StaticResource UseSystemFocusVisuals}" />
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="ComboBoxItem">
<Grid x:Name="LayoutRoot" Background="{TemplateBinding Background}" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" CornerRadius="{TemplateBinding CornerRadius}" Control.IsTemplateFocusTarget="True">
<VisualStateManager.VisualStateGroups>
<VisualStateGroup x:Name="CommonStates">
<VisualState x:Name="Normal">
<Storyboard>
<PointerUpThemeAnimation Storyboard.TargetName="LayoutRoot" />
</Storyboard>
</VisualState>
<VisualState x:Name="PointerOver">
<VisualState.Setters>
<Setter Target="LayoutRoot.(RevealBrush.State)" Value="PointerOver" />
<Setter Target="LayoutRoot.Background" Value="Azure" />
<Setter Target="LayoutRoot.BorderBrush" Value="{ThemeResource ComboBoxItemRevealBorderBrushPointerOver}" />
<Setter Target="ContentPresenter.Foreground" Value="{ThemeResource ComboBoxItemForegroundPointerOver}" />
</VisualState.Setters>
<Storyboard>
<PointerUpThemeAnimation Storyboard.TargetName="LayoutRoot" />
</Storyboard>
</VisualState>
<VisualState x:Name="Disabled">
<VisualState.Setters>
<Setter Target="LayoutRoot.Background" Value="{ThemeResource ComboBoxItemRevealBackgroundDisabled}" />
<Setter Target="LayoutRoot.BorderBrush" Value="{ThemeResource ComboBoxItemRevealBorderBrushDisabled}" />
<Setter Target="ContentPresenter.Foreground" Value="{ThemeResource ComboBoxItemForegroundDisabled}" />
</VisualState.Setters>
</VisualState>
<VisualState x:Name="Pressed">
<VisualState.Setters>
<Setter Target="LayoutRoot.Background" Value="{ThemeResource ComboBoxItemRevealBackgroundPressed}" />
<Setter Target="LayoutRoot.BorderBrush" Value="{ThemeResource ComboBoxItemRevealBorderBrushPressed}" />
<Setter Target="ContentPresenter.Foreground" Value="{ThemeResource ComboBoxItemForegroundPressed}" />
<Setter Target="LayoutRoot.(RevealBrush.State)" Value="Pressed" />
</VisualState.Setters>
<Storyboard>
<PointerDownThemeAnimation Storyboard.TargetName="LayoutRoot" />
</Storyboard>
</VisualState>
<VisualState x:Name="Selected">
<VisualState.Setters>
<Setter Target="LayoutRoot.Background" Value="Yellow" />
<Setter Target="LayoutRoot.BorderBrush" Value="{ThemeResource ComboBoxItemRevealBorderBrushSelected}" />
<Setter Target="ContentPresenter.Foreground" Value="{ThemeResource ComboBoxItemForegroundSelected}" />
</VisualState.Setters>
<Storyboard>
<PointerUpThemeAnimation Storyboard.TargetName="LayoutRoot" />
</Storyboard>
</VisualState>
<VisualState x:Name="SelectedUnfocused">
<VisualState.Setters>
<Setter Target="LayoutRoot.Background" Value="{ThemeResource ComboBoxItemRevealBackgroundSelectedUnfocused}" />
<Setter Target="LayoutRoot.BorderBrush" Value="{ThemeResource ComboBoxItemRevealBorderBrushSelectedUnfocused}" />
<Setter Target="ContentPresenter.Foreground" Value="{ThemeResource ComboBoxItemForegroundSelectedUnfocused}" />
</VisualState.Setters>
</VisualState>
<VisualState x:Name="SelectedDisabled">
<VisualState.Setters>
<Setter Target="LayoutRoot.Background" Value="{ThemeResource ComboBoxItemRevealBackgroundSelectedDisabled}" />
<Setter Target="LayoutRoot.BorderBrush" Value="{ThemeResource ComboBoxItemRevealBorderBrushSelectedDisabled}" />
<Setter Target="ContentPresenter.Foreground" Value="{ThemeResource ComboBoxItemForegroundSelectedDisabled}" />
</VisualState.Setters>
</VisualState>
<VisualState x:Name="SelectedPointerOver">
<VisualState.Setters>
<Setter Target="LayoutRoot.Background" Value="Red" />
<Setter Target="LayoutRoot.BorderBrush" Value="{ThemeResource ComboBoxItemRevealBorderBrushSelectedPointerOver}" />
<Setter Target="ContentPresenter.Foreground" Value="{ThemeResource ComboBoxItemForegroundSelectedPointerOver}" />
<Setter Target="LayoutRoot.(RevealBrush.State)" Value="PointerOver" />
</VisualState.Setters>
<Storyboard>
<PointerUpThemeAnimation Storyboard.TargetName="LayoutRoot" />
</Storyboard>
</VisualState>
<VisualState x:Name="SelectedPressed">
<VisualState.Setters>
<Setter Target="LayoutRoot.Background" Value="Green" />
<Setter Target="LayoutRoot.BorderBrush" Value="{ThemeResource ComboBoxItemRevealBorderBrushSelectedPressed}" />
<Setter Target="ContentPresenter.Foreground" Value="{ThemeResource ComboBoxItemForegroundSelectedPressed}" />
<Setter Target="LayoutRoot.(RevealBrush.State)" Value="Pressed" />
</VisualState.Setters>
</VisualState>
</VisualStateGroup>
<VisualStateGroup x:Name="InputModeStates">
<VisualState x:Name="InputModeDefault" />
<VisualState x:Name="TouchInputMode">
<VisualState.Setters>
<Setter Target="ContentPresenter.Margin" Value="{ThemeResource ComboBoxItemRevealThemeTouchPadding}" />
</VisualState.Setters>
</VisualState>
<VisualState x:Name="GameControllerInputMode">
<VisualState.Setters>
<Setter Target="ContentPresenter.Margin" Value="{ThemeResource ComboBoxItemRevealThemeGameControllerPadding}" />
</VisualState.Setters>
</VisualState>
</VisualStateGroup>
</VisualStateManager.VisualStateGroups>
<ContentPresenter x:Name="ContentPresenter"
Content="{TemplateBinding Content}"
ContentTransitions="{TemplateBinding ContentTransitions}"
ContentTemplate="{TemplateBinding ContentTemplate}"
Foreground="{TemplateBinding Foreground}"
HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}"
VerticalAlignment="{TemplateBinding VerticalContentAlignment}"
Margin="{TemplateBinding Padding}" />
</Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</Page.Resources>
<Grid>
<ComboBox x:Name="FontsCombo" Header="Fonts" Height="200" Width="200"
ItemsSource="{x:Bind fonts}" DisplayMemberPath="Source" ItemContainerStyle="{StaticResource MyItemStyle}"/>
</Grid>
I changed the PointerOver color, Selected color, SelectedPointerOver color and SelectedPressed color.

How to add hover animations for ListViewItems similar to the oficial Windows 10 Photos app

I would like to add an animation like this to my own ListView:
As you can see, it zooms in/out the content of the ListViewItem when the mouse is hovering. This is the behavior of the oficial Windows 10 application called Microsoft Photos.
Is there an automated way to do it, preferably using a XAML-only approach?
Is there an automated way to do it, preferably using a XAML-only approach?
Sure, you could edit the default ListViewItem style and add DoubleAnimation to PointerOver state to animate ScaleTransform . I have made the complete style for this question, you could use it directly.
<Style TargetType="ListViewItem">
<Setter Property="FontFamily" Value="{ThemeResource ContentControlThemeFontFamily}" />
<Setter Property="FontSize" Value="{ThemeResource ControlContentThemeFontSize}" />
<Setter Property="Background" Value="{ThemeResource ListViewItemBackground}" />
<Setter Property="Foreground" Value="{ThemeResource ListViewItemForeground}" />
<Setter Property="TabNavigation" Value="Local" />
<Setter Property="IsHoldingEnabled" Value="True" />
<Setter Property="Padding" Value="12,0,12,0" />
<Setter Property="HorizontalContentAlignment" Value="Left" />
<Setter Property="VerticalContentAlignment" Value="Center" />
<Setter Property="MinWidth" Value="{ThemeResource ListViewItemMinWidth}" />
<Setter Property="MinHeight" Value="{ThemeResource ListViewItemMinHeight}" />
<Setter Property="AllowDrop" Value="False" />
<Setter Property="UseSystemFocusVisuals" Value="{StaticResource UseSystemFocusVisuals}" />
<Setter Property="FocusVisualMargin" Value="0" />
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="ListViewItem">
<ListViewItemPresenter
x:Name="Root"
HorizontalContentAlignment="{TemplateBinding HorizontalContentAlignment}"
VerticalContentAlignment="{TemplateBinding VerticalContentAlignment}"
CheckBoxBrush="{ThemeResource ListViewItemCheckBoxBrush}"
CheckBrush="{ThemeResource ListViewItemCheckBrush}"
CheckMode="{ThemeResource ListViewItemCheckMode}"
ContentMargin="{TemplateBinding Padding}"
ContentTransitions="{TemplateBinding ContentTransitions}"
Control.IsTemplateFocusTarget="True"
DisabledOpacity="{ThemeResource ListViewItemDisabledThemeOpacity}"
DragBackground="{ThemeResource ListViewItemDragBackground}"
DragForeground="{ThemeResource ListViewItemDragForeground}"
DragOpacity="{ThemeResource ListViewItemDragThemeOpacity}"
FocusBorderBrush="{ThemeResource ListViewItemFocusBorderBrush}"
FocusSecondaryBorderBrush="{ThemeResource ListViewItemFocusSecondaryBorderBrush}"
FocusVisualMargin="{TemplateBinding FocusVisualMargin}"
PlaceholderBackground="{ThemeResource ListViewItemPlaceholderBackground}"
PointerOverBackground="{ThemeResource ListViewItemBackgroundPointerOver}"
PointerOverForeground="{ThemeResource ListViewItemForegroundPointerOver}"
PressedBackground="{ThemeResource ListViewItemBackgroundPressed}"
ReorderHintOffset="{ThemeResource ListViewItemReorderHintThemeOffset}"
RevealBackground="{ThemeResource ListViewItemRevealBackground}"
RevealBorderBrush="{ThemeResource ListViewItemRevealBorderBrush}"
RevealBorderThickness="{ThemeResource ListViewItemRevealBorderThemeThickness}"
SelectedBackground="{ThemeResource ListViewItemBackgroundSelected}"
SelectedForeground="{ThemeResource ListViewItemForegroundSelected}"
SelectedPointerOverBackground="{ThemeResource ListViewItemBackgroundSelectedPointerOver}"
SelectedPressedBackground="{ThemeResource ListViewItemBackgroundSelectedPressed}"
SelectionCheckMarkVisualEnabled="{ThemeResource ListViewItemSelectionCheckMarkVisualEnabled}"
>
<VisualStateManager.VisualStateGroups>
<VisualStateGroup x:Name="CommonStates">
<VisualState x:Name="Normal" />
<VisualState x:Name="Selected" />
<VisualState x:Name="PointerOver">
<VisualState.Setters>
<Setter Target="Root.(RevealBrush.State)" Value="PointerOver" />
<Setter Target="Root.RevealBorderBrush" Value="{ThemeResource ListViewItemRevealBorderBrushPointerOver}" />
</VisualState.Setters>
<Storyboard>
<DoubleAnimation Storyboard.TargetName="Root" Storyboard.TargetProperty="(UIElement.RenderTransform).(ScaleTransform.ScaleY)" From="1" To="1.5" Duration="0:0:0.1"/>
<DoubleAnimation Storyboard.TargetName="Root" Storyboard.TargetProperty="(UIElement.RenderTransform).(ScaleTransform.ScaleX)" From="1" To="1.5" Duration="0:0:0.1"/>
</Storyboard>
</VisualState>
<VisualState x:Name="PointerOverSelected">
<VisualState.Setters>
<Setter Target="Root.(RevealBrush.State)" Value="PointerOver" />
<Setter Target="Root.RevealBorderBrush" Value="{ThemeResource ListViewItemRevealBorderBrushPointerOver}" />
</VisualState.Setters>
</VisualState>
<VisualState x:Name="PointerOverPressed">
<VisualState.Setters>
<Setter Target="Root.(RevealBrush.State)" Value="Pressed" />
<Setter Target="Root.RevealBorderBrush" Value="{ThemeResource ListViewItemRevealBorderBrushPressed}" />
</VisualState.Setters>
</VisualState>
<VisualState x:Name="Pressed">
<VisualState.Setters>
<Setter Target="Root.(RevealBrush.State)" Value="Pressed" />
<Setter Target="Root.RevealBorderBrush" Value="{ThemeResource ListViewItemRevealBorderBrushPressed}" />
</VisualState.Setters>
</VisualState>
<VisualState x:Name="PressedSelected">
<VisualState.Setters>
<Setter Target="Root.(RevealBrush.State)" Value="Pressed" />
<Setter Target="Root.RevealBorderBrush" Value="{ThemeResource ListViewItemRevealBorderBrushPressed}" />
</VisualState.Setters>
</VisualState>
</VisualStateGroup>
<VisualStateGroup x:Name="DisabledStates">
<VisualState x:Name="Enabled" />
<VisualState x:Name="Disabled">
<VisualState.Setters>
<Setter Target="Root.RevealBorderThickness" Value="0" />
</VisualState.Setters>
</VisualState>
</VisualStateGroup>
</VisualStateManager.VisualStateGroups>
<ListViewItemPresenter.RenderTransform>
<ScaleTransform ScaleX="1" ScaleY="1"/>
</ListViewItemPresenter.RenderTransform>
</ListViewItemPresenter>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>

UWP / XAML : Larger reveal effect (or gradient customization) on ListView

I am styling a ListViewItemPresenter and want the reveal effect on mouse hovering to be larger.
I managed to change the thickness, but I can't get it to expand on the sides.
Any hints on how I can achieve that ?
I tried defining a RevealBorderBrush but can't find a way to change that.
After reading MS Doc, parameters are not really clear. Trying to redeclare a Transform seems to be forbidden, so I'm lost there.
Thanks!
Note: I am using the default template for ListViewItem :
<Style x:Key="ListViewItemStyle1" TargetType="ListViewItem">
<Setter Property="FontFamily" Value="{ThemeResource ContentControlThemeFontFamily}"/>
<Setter Property="FontSize" Value="{ThemeResource ControlContentThemeFontSize}"/>
<Setter Property="Background" Value="{ThemeResource ListViewItemBackground}"/>
<Setter Property="Foreground" Value="{ThemeResource ListViewItemForeground}"/>
<Setter Property="TabNavigation" Value="Local"/>
<Setter Property="IsHoldingEnabled" Value="True"/>
<Setter Property="Padding" Value="12,0,12,0"/>
<Setter Property="HorizontalContentAlignment" Value="Left"/>
<Setter Property="VerticalContentAlignment" Value="Center"/>
<Setter Property="MinWidth" Value="{ThemeResource ListViewItemMinWidth}"/>
<Setter Property="MinHeight" Value="{ThemeResource ListViewItemMinHeight}"/>
<Setter Property="AllowDrop" Value="False"/>
<Setter Property="UseSystemFocusVisuals" Value="{StaticResource UseSystemFocusVisuals}"/>
<Setter Property="FocusVisualMargin" Value="0"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="ListViewItem">
<ListViewItemPresenter x:Name="Root" CheckBrush="{ThemeResource ListViewItemCheckBrush}" ContentMargin="{TemplateBinding Padding}" CheckBoxBrush="{ThemeResource ListViewItemCheckBoxBrush}" ContentTransitions="{TemplateBinding ContentTransitions}" CheckMode="{ThemeResource ListViewItemCheckMode}" DragOpacity="{ThemeResource ListViewItemDragThemeOpacity}" DisabledOpacity="{ThemeResource ListViewItemDisabledThemeOpacity}" DragBackground="{ThemeResource ListViewItemDragBackground}" DragForeground="{ThemeResource ListViewItemDragForeground}" FocusBorderBrush="{ThemeResource ListViewItemFocusBorderBrush}" FocusVisualMargin="{TemplateBinding FocusVisualMargin}" FocusSecondaryBorderBrush="{ThemeResource ListViewItemFocusSecondaryBorderBrush}" HorizontalContentAlignment="{TemplateBinding HorizontalContentAlignment}" Control.IsTemplateFocusTarget="True" PressedBackground="{ThemeResource ListViewItemBackgroundPressed}" PlaceholderBackground="{ThemeResource ListViewItemPlaceholderBackground}" PointerOverForeground="{ThemeResource ListViewItemForegroundPointerOver}" PointerOverBackground="{ThemeResource ListViewItemBackgroundPointerOver}" RevealBorderThickness="2" ReorderHintOffset="{ThemeResource ListViewItemReorderHintThemeOffset}" RevealBorderBrush="{ThemeResource ListViewItemRevealBorderBrush}" RevealBackground="{ThemeResource ListViewItemRevealBackground}" SelectedForeground="{ThemeResource ListViewItemForegroundSelected}" SelectionCheckMarkVisualEnabled="{ThemeResource ListViewItemSelectionCheckMarkVisualEnabled}" SelectedBackground="{ThemeResource ListViewItemBackgroundSelected}" SelectedPressedBackground="{ThemeResource ListViewItemBackgroundSelectedPressed}" SelectedPointerOverBackground="{ThemeResource ListViewItemBackgroundSelectedPointerOver}" VerticalContentAlignment="{TemplateBinding VerticalContentAlignment}">
<VisualStateManager.VisualStateGroups>
<VisualStateGroup x:Name="CommonStates">
<VisualState x:Name="Normal"/>
<VisualState x:Name="Selected"/>
<VisualState x:Name="PointerOver">
<VisualState.Setters>
<Setter Target="Root.(RevealBrush.State)" Value="PointerOver"/>
<Setter Target="Root.RevealBorderBrush" Value="{ThemeResource ListViewItemRevealBorderBrushPointerOver}"/>
</VisualState.Setters>
</VisualState>
<VisualState x:Name="PointerOverSelected">
<VisualState.Setters>
<Setter Target="Root.(RevealBrush.State)" Value="PointerOver"/>
<Setter Target="Root.RevealBorderBrush" Value="{ThemeResource ListViewItemRevealBorderBrushPointerOver}"/>
</VisualState.Setters>
</VisualState>
<VisualState x:Name="PointerOverPressed">
<VisualState.Setters>
<Setter Target="Root.(RevealBrush.State)" Value="Pressed"/>
<Setter Target="Root.RevealBorderBrush" Value="{ThemeResource ListViewItemRevealBorderBrushPressed}"/>
</VisualState.Setters>
</VisualState>
<VisualState x:Name="Pressed">
<VisualState.Setters>
<Setter Target="Root.(RevealBrush.State)" Value="Pressed"/>
<Setter Target="Root.RevealBorderBrush" Value="{ThemeResource ListViewItemRevealBorderBrushPressed}"/>
</VisualState.Setters>
</VisualState>
<VisualState x:Name="PressedSelected">
<VisualState.Setters>
<Setter Target="Root.(RevealBrush.State)" Value="Pressed"/>
<Setter Target="Root.RevealBorderBrush" Value="{ThemeResource ListViewItemRevealBorderBrushPressed}"/>
</VisualState.Setters>
</VisualState>
</VisualStateGroup>
<VisualStateGroup x:Name="DisabledStates">
<VisualState x:Name="Enabled"/>
<VisualState x:Name="Disabled">
<VisualState.Setters>
<Setter Target="Root.RevealBorderThickness" Value="0"/>
</VisualState.Setters>
</VisualState>
</VisualStateGroup>
</VisualStateManager.VisualStateGroups>
</ListViewItemPresenter>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
If you want to modify ListView Reveal effect size, you could set ListViewItemRevealBorderThemeThickness in the page resource like the follow, and the default value of ListViewItemRevealBorderThemeThickness is 1.
<Page.Resources>
<Thickness x:Key="ListViewItemRevealBorderThemeThickness">2</Thickness>
</Page.Resources>
UWP has not provide Reveal border width property yet, We could not change it. For custom reveal effect, you could refer composition lighting.
Xaml
<Rectangle
Height="44"
HorizontalAlignment="Stretch"
Fill="Azure"
Loaded="Rectangle_Loaded"
PointerMoved="Rectangle_PointerMoved"
/>
Code behind
private PointLight _pointLight;
private void Rectangle_PointerMoved(object sender, PointerRoutedEventArgs e)
{
var point = e.GetCurrentPoint(sender as UIElement).Position;
// If you want to make light large, please set large Z Value for `Vector3`
_pointLight.Offset = new Vector3((float)point.X, (float)point.Y, (float)100);
}
private void Rectangle_Loaded(object sender, RoutedEventArgs e)
{
var compositor = Window.Current.Compositor;
var visual = ElementCompositionPreview.GetElementVisual(sender as UIElement);
_pointLight = compositor.CreatePointLight();
_pointLight.Color = Colors.Red;
_pointLight.CoordinateSpace = visual;
_pointLight.Targets.Add(visual);
}

How can I change the font and font size of a gridview as focus/selection changes

In UWP I'm building a Gridview that contains letters. (e.g. A B C D E F G... Z) as the user navigates in the Gridview I'd like to change the font(and size) of the currently selected/focused letter. I'd like to be able to do it via XAML if possible but I can't seem to make it work.
Some background:
I've created a DataTemplate to represent my letters (I have 2 data templates, one for enabled letters and one for disabled letters) and I use an ItemTemplateSelector and databinding to render the list of letters.
I've a LetterModel that represents the Letter and it's state so that At page load some the disabled letters have a different look and those items are disabled in the gridview. I'd now like to be able to change the font and font size via the styling of the LIstViewPresenter (if this is even possible).
Some code:
Letter Model:
public class LetterModel
{
public string Letter { get; set; }
public bool IsEnabled { get; set; }
}
Data Templates XAML (contained in a resource file along with the GridViewItem Style overrides I've implemented):
<helpers:LetterSelector x:Key="alphabetSelector" EnabledTemplate="{StaticResource LetterEnabled}" DisabledTemplate="{StaticResource LetterEnabled}"/>
<DataTemplate x:Name="LetterEnabled">
<TextBlock x:Name="myLetter" Text="{Binding Letter}" Style="{StaticResource LetterTextStyle}" FontSize="24"/>
</DataTemplate>
<DataTemplate x:Name="LetterDisabled">
<TextBlock x:Name="myLetter" Text="{Binding Letter}" Style="{StaticResource DisabledLetterTextStyle}" Foreground="{StaticResource MyColor}" FontSize="24"/>
</DataTemplate>
Declaration of GridView in a page:
<GridView x:Name="alphaGrid" Width="Auto" Height="Auto"
HorizontalAlignment="Stretch"
VerticalAlignment="Stretch" Margin="22, 0, 22, 0"
SelectionChanged="AlphaGrid_SelectionChanged"
ItemsSource="{x:Bind MyViewModel.Letters}"
ItemTemplateSelector="{StaticResource alphabetSelector}"
ItemContainerStyle="{StaticResource LetterSelectionGridViewStyle}">
Here is my LetterSelectionGridViewStyle:
<Style x:Key="LetterSelectionGridViewStyle" TargetType="GridViewItem">
<Setter Property="FontFamily" Value="{ThemeResource ContentControlThemeFontFamily}"/>
<Setter Property="FontSize" Value="{ThemeResource ControlContentThemeFontSize}"/>
<Setter Property="Background" Value="{ThemeResource GridViewItemBackground}"/>
<Setter Property="Foreground" Value="{ThemeResource GridViewItemForeground}"/>
<Setter Property="TabNavigation" Value="Local"/>
<Setter Property="IsHoldingEnabled" Value="True"/>
<Setter Property="HorizontalContentAlignment" Value="Center"/>
<Setter Property="VerticalContentAlignment" Value="Center"/>
<Setter Property="Margin" Value="0,0,6,6"/>
<Setter Property="MinWidth" Value="{ThemeResource GridViewItemMinWidth}"/>
<Setter Property="MinHeight" Value="{ThemeResource GridViewItemMinHeight}"/>
<Setter Property="AllowDrop" Value="False"/>
<Setter Property="UseSystemFocusVisuals" Value="{StaticResource UseSystemFocusVisuals}"/>
<Setter Property="FocusVisualMargin" Value="-2,-2,-2,-6"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="GridViewItem">
<ListViewItemPresenter x:Name="Root" CheckBrush="{ThemeResource GridViewItemCheckBrush}"
ContentMargin="{TemplateBinding Padding}"
CheckBoxBrush="{ThemeResource GridViewItemCheckBoxBrush}"
ContentTransitions="{TemplateBinding ContentTransitions}"
CheckMode="{ThemeResource GridViewItemCheckMode}"
DragOpacity="{ThemeResource ListViewItemDragThemeOpacity}"
DisabledOpacity="{ThemeResource ListViewItemDisabledThemeOpacity}"
DragBackground="{ThemeResource GridViewItemDragBackground}"
DragForeground="{ThemeResource GridViewItemDragForeground}"
FocusBorderBrush="{ThemeResource GridViewItemFocusBorderBrush}"
FocusVisualPrimaryBrush="{StaticResource MyOrange}"
FocusVisualPrimaryThickness="0,0,0,8"
FocusVisualMargin="{TemplateBinding FocusVisualMargin}"
FocusSecondaryBorderBrush="{ThemeResource GridViewItemFocusSecondaryBorderBrush}"
HorizontalContentAlignment="{TemplateBinding HorizontalContentAlignment}"
Control.IsTemplateFocusTarget="True"
PressedBackground="{ThemeResource GridViewItemBackgroundPressed}"
PlaceholderBackground="{ThemeResource GridViewItemPlaceholderBackground}"
PointerOverForeground="{ThemeResource GridViewItemForegroundPointerOver}"
PointerOverBackground="{ThemeResource GridViewItemBackgroundPointerOver}"
RevealBorderThickness="{ThemeResource GridViewItemRevealBorderThemeThickness}"
ReorderHintOffset="{ThemeResource GridViewItemReorderHintThemeOffset}"
RevealBorderBrush="{ThemeResource GridViewItemRevealBorderBrush}"
RevealBackground="{ThemeResource GridViewItemRevealBackground}"
SelectedForeground="{ThemeResource GridViewItemForegroundSelected}"
SelectionCheckMarkVisualEnabled="{ThemeResource GridViewItemSelectionCheckMarkVisualEnabled}"
SelectedBackground="{ThemeResource SystemControlTransparentBrush}"
SelectedPressedBackground="{ThemeResource SystemControlTransparentBrush}"
SelectedPointerOverBackground="{ThemeResource SystemControlTransparentBrush}"
VerticalContentAlignment="{TemplateBinding VerticalContentAlignment}">
<VisualStateManager.VisualStateGroups>
<VisualStateGroup x:Name="CommonStates">
<VisualState x:Name="Normal"/>
<VisualState x:Name="Selected"/>
<VisualState x:Name="PointerOver">
<VisualState.Setters>
<Setter Target="Root.(RevealBrush.State)" Value="PointerOver"/>
</VisualState.Setters>
</VisualState>
<VisualState x:Name="PointerOverSelected">
<VisualState.Setters>
<Setter Target="Root.(RevealBrush.State)" Value="PointerOver"/>
</VisualState.Setters>
</VisualState>
<VisualState x:Name="PointerOverPressed">
<VisualState.Setters>
<Setter Target="Root.(RevealBrush.State)" Value="Pressed"/>
</VisualState.Setters>
</VisualState>
<VisualState x:Name="Pressed">
<VisualState.Setters>
<Setter Target="Root.(RevealBrush.State)" Value="Pressed"/>
</VisualState.Setters>
</VisualState>
<VisualState x:Name="PressedSelected">
<VisualState.Setters>
<Setter Target="Root.(RevealBrush.State)" Value="Pressed"/>
</VisualState.Setters>
</VisualState>
</VisualStateGroup>
<VisualStateGroup x:Name="DisabledStates">
<VisualState x:Name="Enabled"/>
<VisualState x:Name="Disabled">
<VisualState.Setters>
<Setter Target="Root.RevealBorderThickness" Value="0"/>
</VisualState.Setters>
</VisualState>
</VisualStateGroup>
</VisualStateManager.VisualStateGroups>
</ListViewItemPresenter>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
Ideally I'd be able to do something in the VisualStateGroups that understands the selected/unselected behavior and I could change the FontSize Properties in my datatemplate
Or am I just misunderstanding something here?
I tried using behaviors in my DataTemplate however that changed all the letter's fonts... not just the selected.
I've spent a lot of time trying to Understand if this should be doable in XAML.
Thanks!
If you set the FontSize=24 in your DataTemplate, then the font size applied to 'ListViewItemPresenter' will not work.
So, if you want to change the font size when the GridViewItem is selected in visual state, you need to remove the FontSize=24 in your DataTemplate and change the font size in 'Selected' visual state directly.
<VisualState x:Name="Selected">
<VisualState.Setters>
<Setter Target="Root.FontSize" Value="50"></Setter>
</VisualState.Setters>
</VisualState>

Add Reveal Higlight to pivot header

I would like to add a bit of reveal highlight in my app to my pivot headers. But I'm not getting there
Below is my Style for the Pivot
<Style x:Key="PivotStyle1" TargetType="Pivot">
<Setter Property="Margin" Value="0"/>
<Setter Property="Padding" Value="0"/>
<Setter Property="Background" Value="{ThemeResource PivotBackground}"/>
<Setter Property="IsTabStop" Value="False"/>
<Setter Property="ItemsPanel">
<Setter.Value>
<ItemsPanelTemplate>
<Grid/>
</ItemsPanelTemplate>
</Setter.Value>
</Setter>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="Pivot">
<Grid x:Name="RootElement" Background="{TemplateBinding Background}" HorizontalAlignment="{TemplateBinding HorizontalAlignment}" VerticalAlignment="{TemplateBinding VerticalAlignment}">
<Grid.Resources>
<Style x:Key="BaseContentControlStyle" TargetType="ContentControl">
<Setter Property="FontFamily" Value="Segoe UI"/>
<Setter Property="FontWeight" Value="SemiBold"/>
<Setter Property="FontSize" Value="{ThemeResource PivotHeaderItemFontSize}"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="ContentControl">
<ContentPresenter Content="{TemplateBinding Content}"
ContentTemplate="{TemplateBinding ContentTemplate}"
Margin="{TemplateBinding Padding}"
ContentTransitions="{TemplateBinding ContentTransitions}"
HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}"
VerticalAlignment="{TemplateBinding VerticalContentAlignment}"
OpticalMarginAlignment="TrimSideBearings"/>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
<Style x:Key="TitleContentControlStyle" TargetType="ContentControl" >
<Setter Property="FontWeight" Value="SemiLight"/>
<Setter Property="FontSize" Value="{ThemeResource PivotHeaderItemFontSize}"/>
</Style>
<Style TargetType="PivotHeaderItem">
<Setter Property="FontSize" Value="{ThemeResource PivotHeaderItemFontSize}" />
<Setter Property="FontFamily" Value="{ThemeResource PivotHeaderItemFontFamily}" />
<Setter Property="CharacterSpacing" Value="{ThemeResource PivotHeaderItemCharacterSpacing}" />
<Setter Property="Background" Value="Transparent" />
<Setter Property="Foreground" Value="{ThemeResource SystemControlForegroundBaseMediumHighBrush}" />
<Setter Property="Margin" Value="{ThemeResource PivotHeaderItemMargin}" />
<Setter Property="Height" Value="32" />
<Setter Property="VerticalContentAlignment" Value="Center" />
<Setter Property="IsTabStop" Value="False" />
<Setter Property="BorderBrush" Value="PaleGreen" />
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="PivotHeaderItem">
<Border x:Name="Grid"
Background="{TemplateBinding Background}"
BorderBrush="{TemplateBinding BorderBrush}"
BorderThickness="2,2,2,2"
Padding="16,0,16,0"
Margin="0"
>
<Border.Resources>
<Style x:Key="BaseContentPresenterStyle" TargetType="ContentPresenter">
<Setter Property="FontFamily" Value="Segoe UI"/>
<Setter Property="FontWeight" Value="SemiBold"/>
<Setter Property="FontSize" Value="{ThemeResource PivotHeaderItemFontSize}"/>
<Setter Property="TextWrapping" Value="Wrap"/>
<Setter Property="LineStackingStrategy" Value="MaxHeight"/>
<Setter Property="TextLineBounds" Value="Full"/>
<Setter Property="OpticalMarginAlignment" Value="TrimSideBearings"/>
</Style>
<Style x:Key="BodyContentPresenterStyle" TargetType="ContentPresenter" BasedOn="{StaticResource BaseContentPresenterStyle}">
<Setter Property="FontWeight" Value="SemiLight"/>
<Setter Property="FontSize" Value="{ThemeResource PivotHeaderItemFontSize}"/>
</Style>
</Border.Resources>
<VisualStateManager.VisualStateGroups>
<VisualStateGroup x:Name="SelectionStates">
<VisualStateGroup.Transitions>
<VisualTransition From="Unselected" To="UnselectedLocked" GeneratedDuration="0:0:0.33" />
<VisualTransition From="UnselectedLocked" To="Unselected" GeneratedDuration="0:0:0.33" />
</VisualStateGroup.Transitions>
<VisualState x:Name="Disabled">
<Storyboard>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="ContentPresenter"
Storyboard.TargetProperty="Foreground" >
<DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlDisabledBaseLowBrush}" />
</ObjectAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
<VisualState x:Name="Unselected" />
<VisualState x:Name="UnselectedLocked">
</VisualState>
<VisualState x:Name="Selected">
</VisualState>
<VisualState x:Name="UnselectedPointerOver">
</VisualState>
<VisualState x:Name="SelectedPointerOver">
<VisualState.Setters>
<Setter Target="Grid.(RevealBrush.State)" Value="PointerOver" />
<Setter Target="Grid.Background" Value="{ThemeResource ButtonRevealBackgroundPointerOver}" />
<Setter Target="ContentPresenter.BorderBrush" Value="{ThemeResource ButtonRevealBorderBrush}"/>
<Setter Target="ContentPresenter.Foreground" Value="{ThemeResource ButtonForegroundPointerOver}" />
</VisualState.Setters>
</VisualState>
<VisualState x:Name="UnselectedPressed">
</VisualState>
<VisualState x:Name="SelectedPressed">
</VisualState>
</VisualStateGroup>
</VisualStateManager.VisualStateGroups>
<ContentPresenter
x:Name="ContentPresenter"
Content="{TemplateBinding Content}"
ContentTemplate="{TemplateBinding ContentTemplate}"
HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}"
VerticalAlignment="{TemplateBinding VerticalContentAlignment}"
Style="{StaticResource BodyContentPresenterStyle}">
<ContentPresenter.RenderTransform>
<TranslateTransform x:Name="ContentPresenterTranslateTransform" />
</ContentPresenter.RenderTransform>
</ContentPresenter>
</Border>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</Grid.Resources>
<Grid.RowDefinitions>
<RowDefinition Height="Auto"/>
<RowDefinition Height="*"/>
</Grid.RowDefinitions>
{... add here stuff from the standard template ... }
</Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
If I hover over the selected Header the background changes, but it's a flat color and like in the NavigationView/Listview. The BorderBrush changes his color too, but there is no shading.
P.S.: How could I modify the Style to be API aware. If the user fas the FCU user Reveal Highlight, if not use flat colors...
Update
The effect is very subtile and hardly visible. Is there a possibility to make the effect stronger?
how can I expand the effect, so that all headers are included. For know the effect is limited to one header only... in navigation view the effect spread to other lines as well
Many thanks for your help
The Reveal is a lighting effect that helps bring depth and focus to your app's interactive elements. It seems you have implement the Reveal effect of the PivotItem, you can set your Pivot with a high Contrast background to see it, such as LightGray.
If you want the BorderBrush changes his color with shading, you should change your Xaml of the SelectedPointerOver VisualState in your code as the following that to change the Grid Border brush but not the ContentPresenter,
<VisualState x:Name="SelectedPointerOver">
<VisualState.Setters>
<Setter Target="Grid.(RevealBrush.State)" Value="PointerOver" />
<Setter Target="Grid.Background" Value="{ThemeResource ButtonRevealBackgroundPointerOver}" />
<Setter Target="Grid.BorderBrush" Value="{ThemeResource NavigationViewItemBorderBrushPointerOver}"/>
<Setter Target="ContentPresenter.Foreground" Value="{ThemeResource ButtonForegroundPointerOver}" />
</VisualState.Setters>
</VisualState>
You can also create a new MyRevealBorderBrush with a x:Key, a Color, an Opacity (optional), and a FallbackColor to use it in your Xaml.
<RevealBackgroundBrush x:Key="MyRevealBorderBrush" Color="PaleGreen" Opacity= "0.5" FallbackColor="PaleGreen"/>
Then you can use it in the VisualState,
<VisualState.Setters>
<Setter Target="Grid.(RevealBrush.State)" Value="PointerOver" />
<Setter Target="Grid.Background" Value="{ThemeResource ButtonRevealBackgroundPointerOver}" />
<Setter Target="Grid.BorderBrush" Value="{StaticResource MyRevealBorderBrush}"/>
<Setter Target="ContentPresenter.Foreground" Value="{ThemeResource ButtonRevealBackgroundPointerOver}" />
</VisualState.Setters>
As for modifying the Style to be API aware, you can look into this document :
https://learn.microsoft.com/en-us/windows/uwp/debug-test-perf/conditional-xaml#use-ifelse-conditions
-----Update----
To implement the similar effect, you should add the setters in the UnselectedPointerOver VisualState in your PivotHeaderItem style,
<VisualState x:Name="UnselectedPointerOver">
<VisualState.Setters>
<Setter Target="Grid.(RevealBrush.State)" Value="PointerOver" />
<Setter Target="Grid.Background" Value="{ThemeResource ButtonRevealBackgroundPointerOver}" />
<Setter Target="Grid.BorderBrush" Value="{StaticResource MyRevealBorderBrush}"/>
<Setter Target="ContentPresenter.Foreground" Value="{ThemeResource ButtonForegroundPointerOver}" />
</VisualState.Setters>
</VisualState>
As for the colors, you should try what you want. For the NavigationView, it should uses the NavigationViewItemBorderBrushPointerOver ThemeResource. You can also try it to see the effect.
<Setter Target="Grid.BorderBrush" Value="{ThemeResource NavigationViewItemBorderBrushPointerOver}"/>