win8RP snapped 横屏 竖屏

  Window.Current.SizeChanged += this.WindowSizeChanged;

private void WindowSizeChanged(object sender, Windows.UI.Core.WindowSizeChangedEventArgs e)
{
if (this._useFilledStateForNarrowWindow) this.InvalidateVisualState();
switch (Windows.UI.ViewManagement.ApplicationView.Value)
{
case Windows.UI.ViewManagement.ApplicationViewState.Filled:
VisualStateManager.GoToState(this, "Filled", false);
break;
case Windows.UI.ViewManagement.ApplicationViewState.FullScreenLandscape:
VisualStateManager.GoToState(this, "FullScreenLandscape", false);
break;
case Windows.UI.ViewManagement.ApplicationViewState.Snapped:
VisualStateManager.GoToState(this, "Snapped", false);
break;
case Windows.UI.ViewManagement.ApplicationViewState.FullScreenPortrait:
VisualStateManager.GoToState(this, "FullScreenPortrait", false);
break;
default:
break;
}
}

 

<VisualStateManager.VisualStateGroups>

<!-- Visual states reflect the application's view state -->
<VisualStateGroup>
<VisualState x:Name="FullScreenPortrait">
<Storyboard>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="backButton" Storyboard.TargetProperty="Style">
<DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource PortraitBackButtonStyle}"/>
</ObjectAnimationUsingKeyFrames>

<ObjectAnimationUsingKeyFrames Storyboard.TargetName="itemGridScrollViewerPort" Storyboard.TargetProperty="Margin">
<DiscreteObjectKeyFrame KeyTime="0" Value="96,0,10,56"/>
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="itemGridScrollViewerPort" Storyboard.TargetProperty="Visibility">
<DiscreteObjectKeyFrame KeyTime="0" Value="Visible"/>
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="itemGridView" Storyboard.TargetProperty="Visibility">
<DiscreteObjectKeyFrame KeyTime="0" Value="Collapsed"/>
</ObjectAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
<VisualState x:Name="Filled"/>

<!-- The entire page respects the narrower 100-pixel margin convention for portrait -->
<VisualState x:Name="FullScreenLandscape">
<Storyboard>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="backButton" Storyboard.TargetProperty="Style">
<DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource PortraitBackButtonStyle}"/>
</ObjectAnimationUsingKeyFrames>

<ObjectAnimationUsingKeyFrames Storyboard.TargetName="itemGridView" Storyboard.TargetProperty="Margin">
<DiscreteObjectKeyFrame KeyTime="0" Value="96,0,10,56"/>
</ObjectAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
<!--
The back button and title have different styles when snapped, and the list representation is substituted
for the grid displayed in all other view states
-->
<VisualState x:Name="Snapped">
<Storyboard>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="backButton" Storyboard.TargetProperty="Style">
<DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource SnappedBackButtonStyle}"/>
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="pageTitle" Storyboard.TargetProperty="Style">
<DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource SnappedPageHeaderTextStyle}"/>
</ObjectAnimationUsingKeyFrames>

<ObjectAnimationUsingKeyFrames Storyboard.TargetName="itemListScrollViewer" Storyboard.TargetProperty="Visibility">
<DiscreteObjectKeyFrame KeyTime="0" Value="Visible"/>
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="itemGridScrollViewer" Storyboard.TargetProperty="Visibility">
<DiscreteObjectKeyFrame KeyTime="0" Value="Collapsed"/>
</ObjectAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
</VisualStateGroup>
</VisualStateManager.VisualStateGroups>