SwipeBackThemeAnimation Class

Definition

Namespace:

Windows.UI.Xaml.Media.Animation

Represents the preconfigured animation that applies to controls when an element slides back into its layout slot after a Swipe interaction.

public ref class SwipeBackThemeAnimation sealed : Timeline

/// [Windows.Foundation.Metadata.ContractVersion(Windows.Foundation.UniversalApiContract, 65536)]
/// [Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
/// [Windows.Foundation.Metadata.Threading(Windows.Foundation.Metadata.ThreadingModel.Both)]
/// [Windows.Foundation.Metadata.Activatable(65536, "Windows.Foundation.UniversalApiContract")]
class SwipeBackThemeAnimation final : Timeline

[Windows.Foundation.Metadata.ContractVersion(typeof(Windows.Foundation.UniversalApiContract), 65536)]
[Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
[Windows.Foundation.Metadata.Threading(Windows.Foundation.Metadata.ThreadingModel.Both)]
[Windows.Foundation.Metadata.Activatable(65536, "Windows.Foundation.UniversalApiContract")]
public sealed class SwipeBackThemeAnimation : Timeline

Public NotInheritable Class SwipeBackThemeAnimation
Inherits Timeline

<SwipeBackThemeAnimation ... />

Inheritance

Object Platform::Object IInspectable DependencyObject Timeline SwipeBackThemeAnimation

Attributes

ActivatableAttribute ContractVersionAttribute MarshalingBehaviorAttribute ThreadingAttribute

Windows requirements

Device family	Windows 10 (introduced in 10.0.10240.0)
API contract	Windows.Foundation.UniversalApiContract (introduced in v1.0)

Examples

The following example applies a SineEase easing function to a DoubleAnimation to create a decelerating animation.

<!-- Example template of a custom control that supports swipe selection.  
     A SwipeBackThemeAnimation is run when the control goes to the Normal state. -->
-->
<ResourceDictionary
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:local="using:BlankApp1">

    <Style TargetType="local:SwipeControl" >
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="local:SwipeControl">
                    <Grid>
                        <VisualStateManager.VisualStateGroups>
                            <VisualStateGroup x:Name="SwipeStates">
                                <VisualState x:Name="Normal">
                                    <Storyboard>
                                        <SwipeBackThemeAnimation TargetName="contentRectangle"/>
                                    </Storyboard>
                                </VisualState>
                                <VisualState x:Name="Selected">
                                    <Storyboard>
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetName="SelectedText" 
                                            Storyboard.TargetProperty="Visibility">
                                            <DiscreteObjectKeyFrame KeyTime="0" Value="Visible"/>
                                        </ObjectAnimationUsingKeyFrames>
                                    </Storyboard>
                                </VisualState>
                                <VisualState x:Name="Hinting">
                                    <Storyboard>
                                        <SwipeHintThemeAnimation TargetName="contentRectangle"/>
                                    </Storyboard>
                                </VisualState>
                            </VisualStateGroup>
                        </VisualStateManager.VisualStateGroups>
                        <Rectangle Width="100" Height="100" Fill="{TemplateBinding Background}"/>

                        <Rectangle x:Name="contentRectangle"
                            Width="100" 
                            Height="100" 
                            Fill="{TemplateBinding Foreground}"/>
                        <TextBlock x:Name="SelectedText" 
                            Text="Selected" 
                            Visibility="Collapsed" 
                            Foreground="White" 
                            FontSize="20" 
                            VerticalAlignment="Center" 
                            HorizontalAlignment="Center"/>
                    </Grid>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>
</ResourceDictionary>

public sealed class SwipeControl : Control
{
    GestureRecognizer _gestureRecognizer;
    bool _isPointerDown = false;
    bool _isSelected = false;
    bool _isCrossSliding = false;

    public SwipeControl()
    {
        this.DefaultStyleKey = typeof(SwipeControl);
        // Direct gesture recognizer to recognize hold and swipe gestures.
        _gestureRecognizer = new GestureRecognizer();
        _gestureRecognizer.GestureSettings = GestureSettings.Hold | 
                                             GestureSettings.HoldWithMouse | 
                                             GestureSettings.CrossSlide;

        _gestureRecognizer.Holding += GestureRecognizer_Holding;
        _gestureRecognizer.CrossSlideHorizontally = false; // Support vertical swiping.
        _gestureRecognizer.CrossSliding += GestureRecognizer_CrossSliding;            
    }

    protected override void OnPointerPressed(PointerRoutedEventArgs e)
    {
        base.OnPointerPressed(e);
        _isPointerDown = CapturePointer(e.Pointer);
        // Send input to GestureRecognizer for processing.
        _gestureRecognizer.ProcessDownEvent(e.GetCurrentPoint(this));

    }

    protected override void OnPointerReleased(PointerRoutedEventArgs e)
    {
        base.OnPointerReleased(e);
        // Send input to GestureRecognizer for processing.
        _gestureRecognizer.ProcessUpEvent(e.GetCurrentPoint(this));

        _isCrossSliding = false;

        // Go to Normal state when pointer is released.
        if (!_isSelected)
        {
            VisualStateManager.GoToState(this, "Normal", true);
        }
    }

    protected override void OnPointerMoved(PointerRoutedEventArgs e)
    {
        base.OnPointerMoved(e);
        if (_isPointerDown)
        {
            // Send input to GestureRecognizer for processing.
            _gestureRecognizer.ProcessMoveEvents(e.GetIntermediatePoints(this));
        }
    }

    void GestureRecognizer_Holding(GestureRecognizer sender, HoldingEventArgs args)
    {
        // Go to Hinting state if control is not already selected.
        if (!_isSelected)
        {
            VisualStateManager.GoToState(this, "Hinting", true);
        }
    }

    void GestureRecognizer_CrossSliding(GestureRecognizer sender, CrossSlidingEventArgs args)
    {
        // Prevent multiple state changes for the same swipe gesture.
        if (!_isCrossSliding)
        {
            _isCrossSliding = true;                

            // Toggle between Selected and Normal on swipe gesture.
            _isSelected = !_isSelected;
            if (_isSelected)
            {
                VisualStateManager.GoToState(this, "Selected", true);
            }
            else
            {
                VisualStateManager.GoToState(this, "Normal", true);
            }
        }
    }
}

// SwipeControl.h:
struct SwipeControl : SwipeControlT<SwipeControl>
{
    SwipeControl();

    void OnPointerPressed(Windows::UI::Xaml::Input::PointerRoutedEventArgs const& e);
    void OnPointerReleased(Windows::UI::Xaml::Input::PointerRoutedEventArgs const& e);
    void OnPointerMoved(Windows::UI::Xaml::Input::PointerRoutedEventArgs const& e);

private:
    Windows::UI::Input::GestureRecognizer m_gestureRecognizer;
    bool m_isPointerDown;
    bool m_isSelected;
    bool m_isCrossSliding;

    void GestureRecognizer_Holding(Windows::UI::Input::GestureRecognizer const& sender, Windows::UI::Input::HoldingEventArgs const& args);
    void GestureRecognizer_CrossSliding(Windows::UI::Input::GestureRecognizer const& sender, Windows::UI::Input::CrossSlidingEventArgs const& args);
};

// SwipeControl.cpp:
SwipeControl::SwipeControl() : m_isCrossSliding(false), m_isPointerDown(false), m_isSelected(false)
{
    DefaultStyleKey(winrt::box_value(L"DocsCppWinRT.SwipeControl"));

    m_gestureRecognizer.GestureSettings(
        Windows::UI::Input::GestureSettings::Hold |
        Windows::UI::Input::GestureSettings::HoldWithMouse |
        Windows::UI::Input::GestureSettings::CrossSlide);

    m_gestureRecognizer.Holding({ this, &SwipeControl::GestureRecognizer_Holding });
    m_gestureRecognizer.CrossSlideHorizontally(false); // Support vertical swiping.
    m_gestureRecognizer.CrossSliding({ this, &SwipeControl::GestureRecognizer_CrossSliding });
}

void SwipeControl::OnPointerPressed(Windows::UI::Xaml::Input::PointerRoutedEventArgs const& e)
{
    m_isPointerDown = CapturePointer(e.Pointer());
    // Send input to GestureRecognizer for processing.
    m_gestureRecognizer.ProcessDownEvent(e.GetCurrentPoint(*this));
}

void SwipeControl::OnPointerReleased(Windows::UI::Xaml::Input::PointerRoutedEventArgs const& e)
{
    // Send input to GestureRecognizer for processing.
    m_gestureRecognizer.ProcessUpEvent(e.GetCurrentPoint(*this));

    m_isCrossSliding = false;

    // Go to Normal state when pointer is released.
    if (!m_isSelected)
    {
        Windows::UI::Xaml::VisualStateManager::GoToState(*this, L"Normal", true);
    }
}

void SwipeControl::OnPointerMoved(Windows::UI::Xaml::Input::PointerRoutedEventArgs const& e)
{
    if (m_isPointerDown)
    {
        // Send input to GestureRecognizer for processing.
        m_gestureRecognizer.ProcessMoveEvents(e.GetIntermediatePoints(*this));
    }
}

void SwipeControl::GestureRecognizer_Holding(Windows::UI::Input::GestureRecognizer const& /* sender */,
    Windows::UI::Input::HoldingEventArgs const& /* args */)
{
    // Go to Hinting state if control is not already selected.
    if (!m_isSelected)
    {
        Windows::UI::Xaml::VisualStateManager::GoToState(*this, L"Hinting", true);
    }
}

void SwipeControl::GestureRecognizer_CrossSliding(Windows::UI::Input::GestureRecognizer const& /* sender */,
    Windows::UI::Input::CrossSlidingEventArgs const& /* args */)
{
    // Prevent multiple state changes for the same swipe gesture.
    if (!m_isCrossSliding)
    {
        m_isCrossSliding = true;

        // Toggle between Selected and Normal on swipe gesture.
        m_isSelected = !m_isSelected;
        if (m_isSelected)
        {
            Windows::UI::Xaml::VisualStateManager::GoToState(*this, L"Selected", true);
        }
        else
        {
            Windows::UI::Xaml::VisualStateManager::GoToState(*this, L"Normal", true);
        }
    }
}

// SwipeControl.h:
public ref class SwipeControl sealed : public Windows::UI::Xaml::Controls::Control
{
public:
    SwipeControl();

protected:
    virtual void OnPointerPressed(Windows::UI::Xaml::Input::PointerRoutedEventArgs^ e) override;
    virtual void OnPointerReleased(Windows::UI::Xaml::Input::PointerRoutedEventArgs^ e) override;
    virtual void OnPointerMoved(Windows::UI::Xaml::Input:: PointerRoutedEventArgs^ e) override;

private:
    Windows::UI::Input::GestureRecognizer^     m_gestureRecognizer;
    bool                                       m_isPointerDown;
    bool                                       m_isSelected;
    bool                                       m_isCrossSliding;

    void GestureRecognizer_Holding(Windows::UI::Input::GestureRecognizer^ sender,    
        Windows::UI::Input::HoldingEventArgs^ args);
    void GestureRecognizer_CrossSliding(Windows::UI::Input::GestureRecognizer^ sender, 
        Windows::UI::Input::CrossSlidingEventArgs^ args);
};

// SwipeControl.cpp:
SwipeControl::SwipeControl() : m_isCrossSliding(false), m_isPointerDown(false), m_isSelected(false)
{
    DefaultStyleKey = "DocsCPP.SwipeControl";

    m_gestureRecognizer = ref new GestureRecognizer();
    m_gestureRecognizer->GestureSettings = GestureSettings::Hold | 
                                              GestureSettings::HoldWithMouse | 
                                              GestureSettings::CrossSlide;

    m_gestureRecognizer->Holding::add(ref new TypedEventHandler<GestureRecognizer^, 
        HoldingEventArgs^>(this, &SwipeControl::GestureRecognizer_Holding));
    m_gestureRecognizer->CrossSlideHorizontally = false; // Support vertical swiping.
    m_gestureRecognizer->CrossSliding::add(ref new TypedEventHandler<GestureRecognizer^, 
        CrossSlidingEventArgs^>(this, &SwipeControl::GestureRecognizer_CrossSliding));
}

void SwipeControl::OnPointerPressed(PointerRoutedEventArgs^ e)
{
    m_isPointerDown = CapturePointer(e->Pointer);
    // Send input to GestureRecognizer for processing.
    m_gestureRecognizer->ProcessDownEvent(e->GetCurrentPoint(this));
}

void SwipeControl::OnPointerReleased(PointerRoutedEventArgs^ e)
{
    // Send input to GestureRecognizer for processing.
    m_gestureRecognizer->ProcessUpEvent(e->GetCurrentPoint(this));

    m_isCrossSliding = false;

    // Go to Normal state when pointer is released.
    if (!m_isSelected)
    {
        VisualStateManager::GoToState(this, "Normal", true);
    }
}

void SwipeControl::OnPointerMoved(PointerRoutedEventArgs^ e)
{
    if (m_isPointerDown)
    {
        // Send input to GestureRecognizer for processing.
        m_gestureRecognizer->ProcessMoveEvents(e->GetIntermediatePoints(this));
    }
}

void SwipeControl::GestureRecognizer_Holding(GestureRecognizer^ sender, HoldingEventArgs^ args)
{
    // Go to Hinting state if control is not already selected.
    if (!m_isSelected)
    {
        VisualStateManager::GoToState(this, "Hinting", true);
    }
}

void SwipeControl::GestureRecognizer_CrossSliding(GestureRecognizer^ sender, CrossSlidingEventArgs^ args)
{
    // Prevent multiple state changes for the same swipe gesture.
    if (!m_isCrossSliding)
    {
        m_isCrossSliding = true;                

        // Toggle between Selected and Normal on swipe gesture.
        m_isSelected = !m_isSelected;
        if (m_isSelected)
        {
            VisualStateManager::GoToState(this, "Selected", true);
        }
        else
        {
            VisualStateManager::GoToState(this, "Normal", true);
        }
    } 
}

Remarks

Note that setting the Duration property has no effect on this object since the duration is preconfigured.

Constructors

SwipeBackThemeAnimation()

Initializes a new instance of the SwipeBackThemeAnimation class.

Properties

AutoReverse	Gets or sets a value that indicates whether the timeline plays in reverse after it completes a forward iteration. (Inherited from Timeline)
BeginTime	Gets or sets the time at which this Timeline should begin. (Inherited from Timeline)
Dispatcher	Gets the CoreDispatcher that this object is associated with. The CoreDispatcher represents a facility that can access the DependencyObject on the UI thread even if the code is initiated by a non-UI thread. (Inherited from DependencyObject)
Duration	Gets or sets the length of time for which this timeline plays, not counting repetitions. (Inherited from Timeline)
FillBehavior	Gets or sets a value that specifies how the animation behaves after it reaches the end of its active period. (Inherited from Timeline)
FromHorizontalOffset	Gets or sets the distance by which the target is translated in the horizontal direction when the animation is active.
FromHorizontalOffsetProperty	Identifies the FromHorizontalOffset dependency property.
FromVerticalOffset	Gets or sets the distance by which the target is translated in the vertical direction when the animation is active.
FromVerticalOffsetProperty	Identifies the FromHorizontalOffset dependency property.
RepeatBehavior	Gets or sets the repeating behavior of this timeline. (Inherited from Timeline)
SpeedRatio	Gets or sets the rate, relative to its parent, at which time progresses for this Timeline. (Inherited from Timeline)
TargetName	Gets or sets the reference name of the control element being targeted.
TargetNameProperty	Identifies the TargetName dependency property.

Methods

ClearValue(DependencyProperty)	Clears the local value of a dependency property. (Inherited from DependencyObject)
GetAnimationBaseValue(DependencyProperty)	Returns any base value established for a dependency property, which would apply in cases where an animation is not active. (Inherited from DependencyObject)
GetValue(DependencyProperty)	Returns the current effective value of a dependency property from a DependencyObject. (Inherited from DependencyObject)
ReadLocalValue(DependencyProperty)	Returns the local value of a dependency property, if a local value is set. (Inherited from DependencyObject)
RegisterPropertyChangedCallback(DependencyProperty, DependencyPropertyChangedCallback)	Registers a notification function for listening to changes to a specific DependencyProperty on this DependencyObject instance. (Inherited from DependencyObject)
SetValue(DependencyProperty, Object)	Sets the local value of a dependency property on a DependencyObject. (Inherited from DependencyObject)
UnregisterPropertyChangedCallback(DependencyProperty, Int64)	Cancels a change notification that was previously registered by calling RegisterPropertyChangedCallback. (Inherited from DependencyObject)

Events

Completed

Occurs when the Storyboard object has completed playing. (Inherited from Timeline)

See also

• Timeline
• Animating swipe gestures