<Grid x:Name="SliderGrid" Grid.ColumnSpan="" Grid.Row="">

                    <Grid.ColumnDefinitions>

                        <ColumnDefinition Width="*"/>

                        <ColumnDefinition Width="*"/>

                    </Grid.ColumnDefinitions>

                    <ContentPresenter x:Name="LeftContentPresenter"

                            HorizontalAlignment="Center" Tapped="LeftContentPresenter_Tapped"

                            VerticalAlignment="Center">

                        <Grid>

                            <Grid.RowDefinitions>

                                <RowDefinition Height="Auto"/>

                                <RowDefinition Height="*"/>

                            </Grid.RowDefinitions>

                            <TextBlock Text="" FontSize="" Margin="0,0,0,10"/>

                            <Rectangle x:Name="LeftRectStateName" Fill="Red" Height=""

                                                   HorizontalAlignment="Stretch" Grid.Row="">

                                <Rectangle.RenderTransform>

                                    <CompositeTransform/>

                                </Rectangle.RenderTransform>

                            </Rectangle>

                        </Grid>

                    </ContentPresenter>

                    <ContentPresenter x:Name="RightContentPresenter"

                                                    Grid.Column=""

                                                    Tapped="RightContentPresenter_Tapped"

                                                    HorizontalAlignment="Center"

                                                    VerticalAlignment="Center">

                        <Grid>

                            <Grid.RowDefinitions>

                                <RowDefinition Height="Auto"/>

                                <RowDefinition Height="*"/>

                            </Grid.RowDefinitions>

                            <TextBlock Text="" FontSize="" Margin="0,0,0,10"/>

                            <Rectangle x:Name="RightRectStateName" Fill="Red" Height="" Opacity=""

                                                   HorizontalAlignment="Stretch" Grid.Row="">

                                <Rectangle.RenderTransform>

                                    <CompositeTransform/>

                                </Rectangle.RenderTransform>

                            </Rectangle>

                        </Grid>

                    </ContentPresenter>

                </Grid>

        private Rectangle rect_old; // 上一次选中的 Rectangle

        private Rectangle rect_current;// 当前选中的 Rectangle

        private Storyboard tempStoryboard;

        private void RightContentPresenter_Tapped(object sender, TappedRoutedEventArgs e)

        {

            rect_current = VisualTreeUtil.FindChildOfType<Rectangle>(RightContentPresenter) as Rectangle;

            rect_old = VisualTreeUtil.FindChildOfType<Rectangle>(LeftContentPresenter) as Rectangle;

            var new_rect = ElementUtil.GetBounds(rect_current, SliderGrid);

            var old_rect = ElementUtil.GetBounds(rect_old, SliderGrid);

            tempStoryboard = StoryBordImg(old_rect, new_rect, LeftContentPresenter, RightContentPresenter);

            tempStoryboard.Completed += (s1, e1) =>

            {

                RightContentPresenter.IsHitTestVisible = false;

                LeftContentPresenter.IsHitTestVisible = true;

                rect_current.Opacity = ;

                rect_old.Opacity = ;

                tempStoryboard.Stop();

                WYToastDialog dialog = new WYToastDialog();

                dialog.ShowAsync("");

            };

        }

        private void LeftContentPresenter_Tapped(object sender, TappedRoutedEventArgs e)

        {

            rect_current = VisualTreeUtil.FindChildOfType<Rectangle>(LeftContentPresenter) as Rectangle;

            rect_old= VisualTreeUtil.FindChildOfType<Rectangle>(RightContentPresenter) as Rectangle;

            var new_rect = ElementUtil.GetBounds(rect_current, SliderGrid);

            var old_rect = ElementUtil.GetBounds(rect_old, SliderGrid);

            tempStoryboard = StoryBordImg(old_rect, new_rect, RightContentPresenter, LeftContentPresenter);

            tempStoryboard.Completed += (s1, e1) =>

            {

                LeftContentPresenter.IsHitTestVisible = false;

                RightContentPresenter.IsHitTestVisible = true;

                rect_current.Opacity = ;

                rect_old.Opacity = ;

                tempStoryboard.Stop();

                WYToastDialog dialog = new WYToastDialog();

                dialog.ShowAsync("");

            };

        }

        private Storyboard StoryBordImg(Rect oldR,Rect newR,ContentPresenter oldP,ContentPresenter newP)

        {

            var sb = new Storyboard();

            if (rect_old != null && rect_current != null)

            {

                var anim = new DoubleAnimationUsingKeyFrames();

                Storyboard.SetTarget(anim, rect_old);

                Storyboard.SetTargetProperty(anim, "(UIElement.RenderTransform).(CompositeTransform.TranslateX)");

                EasingDoubleKeyFrame KeyFrame = new EasingDoubleKeyFrame();

                KeyFrame.KeyTime = KeyTime.FromTimeSpan(TimeSpan.FromSeconds());

                KeyFrame.Value = ;

                EasingDoubleKeyFrame KeyFrame2 = new EasingDoubleKeyFrame();

                KeyFrame2.KeyTime = KeyTime.FromTimeSpan(TimeSpan.FromMilliseconds());

                KeyFrame2.Value = ;

                QuarticEase easing = new QuarticEase();

                easing.EasingMode = EasingMode.EaseOut;

                easing.Ease(0.3);

                KeyFrame2.EasingFunction = easing;

                anim.KeyFrames.Add(KeyFrame);

                anim.KeyFrames.Add(KeyFrame2);

                anim.KeyFrames[].Value = newR.X - oldR.X;

                var anim2 = new DoubleAnimation();

                anim2.To = rect_current.ActualWidth / oldR.Width;

                System.Diagnostics.Debug.WriteLine("x :" + rect_current.ActualWidth / rect_old.ActualWidth);

                anim2.Duration = TimeSpan.FromMilliseconds();

                Storyboard.SetTarget(anim2, rect_old);

                Storyboard.SetTargetProperty(anim2, "(UIElement.RenderTransform).(CompositeTransform.ScaleX)");

                sb.Children.Add(anim);

                sb.Children.Add(anim2);

                sb.Begin();

            }

            return sb;

        }