我正在将我的WP8.1应用程序移植到UWP,我发现新的通用ListView喜欢通过添加一些额外的元素和逻辑(如鼠标覆盖项目时的一些背景颜色)来混淆DataTemplaes的UI
假设我有一个非常简单的模板:
<DataTemplate x:Key="IconsTemplate">
<Grid Width="40"
Height="40">
<Image Source="{Binding IconImage}"/>
</Grid>
</DataTemplate>
这个ListView:
<ListView ItemTemplate="{StaticResource IconsTemplate}"
ItemsSource="{x:Bind ViewModel.Source, Mode=OneWay}"
CanReorderItems="False">
<ListView.ItemsPanel>
<ItemsPanelTemplate>
<ItemsWrapGrid Orientation="Horizontal"/>
</ItemsPanelTemplate>
</ListView.ItemsPanel>
</ListView>
我希望得到,就像在WP8.1上一样,一个简单的包裹网格,我的40 * 40项目里面有一个图像。相反,我得到了这个:
每个项目都是矩形而不是方形(我的意思是,那些明显不我的40 * 40模板),而且我的模板的背景颜色也有自动逻辑。
我不想要任何,我希望我的模板显示完全,我希望能够手动设置我的逻辑指针事件。
我尝试查看默认的ListView模板但是我没有找到任何有用的东西,是否有一个我缺少的参数或者是否有办法让ListView显示像以前那样的普通项目WP8.1?
答案 0 :(得分:1)
我设法通过使用ListViewItems的自定义样式来解决问题。 这是我使用的风格:
<Style TargetType="ListViewItem" x:Key="CustomListViewItemExpanded">
<Setter Property="FontFamily" Value="{ThemeResource ContentControlThemeFontFamily}" />
<Setter Property="FontSize" Value="{ThemeResource ControlContentThemeFontSize}" />
<Setter Property="Background" Value="Transparent"/>
<Setter Property="Foreground" Value="Transparent" />
<Setter Property="TabNavigation" Value="Local"/>
<Setter Property="IsHoldingEnabled" Value="True"/>
<Setter Property="Padding" Value="0"/>
<Setter Property="Margin" Value="0"/>
<Setter Property="HorizontalAlignment" Value="Stretch"/>
<Setter Property="VerticalAlignment" Value="Stretch"/>
<Setter Property="HorizontalContentAlignment" Value="Stretch"/>
<Setter Property="VerticalContentAlignment" Value="Stretch"/>
<Setter Property="MinWidth" Value="0"/>
<Setter Property="MinHeight" Value="0"/>
<Setter Property="UseSystemFocusVisuals" Value="True" />
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="ListViewItem">
<Grid x:Name="ContentBorder"
BorderThickness="0">
<VisualStateManager.VisualStateGroups>
<VisualStateGroup x:Name="CommonStates">
<VisualState x:Name="Normal">
<Storyboard>
<PointerUpThemeAnimation Storyboard.TargetName="ContentPresenter" />
</Storyboard>
</VisualState>
<VisualState x:Name="PointerOver">
<Storyboard>
<PointerUpThemeAnimation Storyboard.TargetName="ContentPresenter" />
</Storyboard>
</VisualState>
<VisualState x:Name="Pressed">
<Storyboard>
<PointerDownThemeAnimation TargetName="ContentPresenter" />
</Storyboard>
</VisualState>
<VisualState x:Name="Selected">
<Storyboard>
<PointerUpThemeAnimation Storyboard.TargetName="ContentPresenter" />
</Storyboard>
</VisualState>
<VisualState x:Name="PointerOverSelected">
<Storyboard>
<PointerUpThemeAnimation Storyboard.TargetName="ContentPresenter" />
</Storyboard>
</VisualState>
<VisualState x:Name="PressedSelected">
<Storyboard>
<PointerDownThemeAnimation TargetName="ContentPresenter" />
</Storyboard>
</VisualState>
</VisualStateGroup>
<VisualStateGroup x:Name="DisabledStates">
<VisualState x:Name="Enabled"/>
<VisualState x:Name="Disabled"/>
</VisualStateGroup>
<VisualStateGroup x:Name="MultiSelectStates">
<VisualState x:Name="MultiSelectDisabled"/>
<VisualState x:Name="MultiSelectEnabled"/>
</VisualStateGroup>
<VisualStateGroup x:Name="DataVirtualizationStates">
<VisualState x:Name="DataAvailable"/>
<VisualState x:Name="DataPlaceholder"/>
</VisualStateGroup>
<VisualStateGroup x:Name="ReorderHintStates">
<VisualState x:Name="NoReorderHint"/>
<VisualState x:Name="BottomReorderHint"/>
<VisualState x:Name="TopReorderHint"/>
<VisualState x:Name="RightReorderHint"/>
<VisualState x:Name="LeftReorderHint"/>
<VisualStateGroup.Transitions>
<VisualTransition To="NoReorderHint" GeneratedDuration="0:0:0.2"/>
</VisualStateGroup.Transitions>
</VisualStateGroup>
<VisualStateGroup x:Name="DragStates">
<VisualState x:Name="NotDragging" />
<VisualState x:Name="Dragging"/>
<VisualState x:Name="DraggingTarget"/>
<VisualState x:Name="MultipleDraggingPrimary"/>
<VisualState x:Name="MultipleDraggingSecondary"/>
<VisualState x:Name="DraggedPlaceholder"/>
<VisualStateGroup.Transitions>
<VisualTransition To="NotDragging" GeneratedDuration="0:0:0.2"/>
</VisualStateGroup.Transitions>
</VisualStateGroup>
</VisualStateManager.VisualStateGroups>
<ContentPresenter x:Name="ContentPresenter"
ContentTransitions="{TemplateBinding ContentTransitions}"
ContentTemplate="{TemplateBinding ContentTemplate}"
Content="{TemplateBinding Content}"
HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}"
VerticalAlignment="{TemplateBinding VerticalContentAlignment}"
Margin="{TemplateBinding Padding}"/>
</Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
这将禁用所有 VisualStates,它将删除模板中存在的所有不必要的控件,并允许以原始大小呈现每个项目。