If your app published in only one language such as zh-cn, but the generated package contain two languages such as en-us, zh-cn, you should to force language in Package.appxmanifest.
Locate the codes here:
<Resources>
<Resource Language="x-generate" />
</Resources>Changes to eg: zh-cn:
<Resources>
<Resource Language="zh-cn" />
</Resources>1. Check all focus codes in your solution.
2. Make sure Control.IsTabStop = True, especially for the Page class because it is not default to true.
3. Remove .vs folder under your solution.(Need close Visual Studio)
1. Add ListViewItemStyle Template
2. Change the code below:
<Style x:Key="ListViewItemStyle1" TargetType="ListViewItem">
<Setter Property="FontFamily" Value="{ThemeResource ContentControlThemeFontFamily}"/>
<Setter Property="FontSize" Value="{ThemeResource ControlContentThemeFontSize}"/>
<Setter Property="Background" Value="Transparent"/>
<Setter Property="Foreground" Value="{ThemeResource SystemControlForegroundBaseHighBrush}"/>
<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="Template">
<Setter.Value>
<ControlTemplate TargetType="ListViewItem">
<!--<ListViewItemPresenter CheckBrush="{ThemeResource SystemControlForegroundBaseMediumHighBrush}" ContentMargin="{TemplateBinding Padding}" CheckMode="Inline" ContentTransitions="{TemplateBinding ContentTransitions}" CheckBoxBrush="{ThemeResource SystemControlForegroundBaseMediumHighBrush}" DragForeground="{ThemeResource ListViewItemDragForegroundThemeBrush}" DragOpacity="{ThemeResource ListViewItemDragThemeOpacity}" DragBackground="{ThemeResource ListViewItemDragBackgroundThemeBrush}" DisabledOpacity="{ThemeResource ListViewItemDisabledThemeOpacity}" FocusBorderBrush="{ThemeResource SystemControlForegroundAltHighBrush}" FocusSecondaryBorderBrush="{ThemeResource SystemControlForegroundBaseHighBrush}" HorizontalContentAlignment="{TemplateBinding HorizontalContentAlignment}" PointerOverForeground="{ThemeResource SystemControlHighlightAltBaseHighBrush}" PressedBackground="{ThemeResource SystemControlHighlightListMediumBrush}" PlaceholderBackground="{ThemeResource ListViewItemPlaceholderBackgroundThemeBrush}" PointerOverBackground="{ThemeResource SystemControlHighlightListLowBrush}" ReorderHintOffset="{ThemeResource ListViewItemReorderHintThemeOffset}" SelectedPressedBackground="{ThemeResource SystemControlHighlightListAccentHighBrush}" SelectionCheckMarkVisualEnabled="True" SelectedForeground="{ThemeResource SystemControlHighlightAltBaseHighBrush}" SelectedPointerOverBackground="{ThemeResource SystemControlHighlightListAccentMediumBrush}" SelectedBackground="{ThemeResource SystemControlHighlightListAccentLowBrush}" VerticalContentAlignment="{TemplateBinding VerticalContentAlignment}"/>-->
<ContentPresenter />
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>