■ ExpressionAnimation 클래스를 사용하는 방법을 보여준다.
▶ MainPage.xaml
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<Page x:Class="TestProject.MainPage" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Background="{ThemeResource ApplicationPageBackgroundThemeBrush}" FontFamily="나눔고딕코딩" FontSize="16"> <Grid Loaded="grid_Loaded"> <StackPanel HorizontalAlignment="Center" VerticalAlignment="Center" Spacing="10"> <Button Name="button1" Margin="5" Width="100" Height="50" Content="항목 1" PointerEntered="button_PointerEntered" PointerExited="button_PointerExited" /> <Button Name="button2" Margin="5" Width="100" Height="50" Content="항목 2" PointerEntered="button_PointerEntered" PointerExited="button_PointerExited" /> <Button Name="button3" Margin="5" Width="100" Height="50" Content="항목 3" PointerEntered="button_PointerEntered" PointerExited="button_PointerExited" /> <Button Name="button4" Margin="5" Width="100" Height="50" Content="항목 4" PointerEntered="button_PointerEntered" PointerExited="button_PointerExited" /> </StackPanel> </Grid> </Page> |
▶ MainPage.xaml.cs
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using System; using System.Numerics; using Windows.Foundation; using Windows.Foundation.Metadata; using Windows.Graphics.Display; using Windows.UI.Composition; using Windows.UI.ViewManagement; using Windows.UI.Xaml; using Windows.UI.Xaml.Controls; using Windows.UI.Xaml.Input; namespace TestProject { /// <summary> /// 메인 페이지 /// </summary> public sealed partial class MainPage : Page { //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Private #region Field /// <summary> /// 작성자 /// </summary> private Compositor compositor = Window.Current.Compositor; /// <summary> /// 애니메이션 /// </summary> private SpringVector3NaturalMotionAnimation animation; #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - MainPage() /// <summary> /// 생성자 /// </summary> public MainPage() { InitializeComponent(); #region 윈도우 크기를 설정한다. double width = 800d; double height = 600d; double dpi = (double)DisplayInformation.GetForCurrentView().LogicalDpi; ApplicationView.PreferredLaunchWindowingMode = ApplicationViewWindowingMode.PreferredLaunchViewSize; Size windowSize = new Size(width * 96d / dpi, height * 96d / dpi); ApplicationView.PreferredLaunchViewSize = windowSize; Window.Current.Activate(); ApplicationView.GetForCurrentView().TryResizeView(windowSize); #endregion #region 윈도우 제목을 설정한다. ApplicationView.GetForCurrentView().Title = "ExpressionAnimation 클래스 사용하기"; #endregion } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Private //////////////////////////////////////////////////////////////////////////////// Event #region 그리드 로드시 처리하기 - grid_Loaded(sender, e) /// <summary> /// 그리드 로드시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void grid_Loaded(object sender, RoutedEventArgs e) { if(!ApiInformation.IsApiContractPresent("Windows.Foundation.UniversalApiContract", 7)) { return; } ExpressionAnimation animation = this.compositor.CreateExpressionAnimation(); animation.Expression = "(aboveButton.Scale.Y - 1) * 50 + aboveButton.Translation.Y % (50 * index)"; animation.Target = "Translation.Y"; animation.SetExpressionReferenceParameter("aboveButton", this.button1); animation.SetScalarParameter("index", 1); this.button2.StartAnimation(animation); animation.SetExpressionReferenceParameter("aboveButton", this.button2); animation.SetScalarParameter("index", 2); this.button3.StartAnimation(animation); animation.SetExpressionReferenceParameter("aboveButton", this.button3); animation.SetScalarParameter("index", 3); this.button4.StartAnimation(animation); } #endregion #region 버튼 포인터 진입시 처리하기 - button_PointerEntered(sender, e) /// <summary> /// 버튼 포인터 진입시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void button_PointerEntered(object sender, PointerRoutedEventArgs e) { Button button = sender as Button; UpdateSpringAnimation(1.5f); StartAnimation(button, this.animation); } #endregion #region 버튼 포인터 이탈시 처리하기 - button_PointerExited(sender, e) /// <summary> /// 버튼 포인터 이탈시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void button_PointerExited(object sender, PointerRoutedEventArgs e) { Button button = sender as Button; UpdateSpringAnimation(1f); StartAnimation(button, this.animation); } #endregion //////////////////////////////////////////////////////////////////////////////// Function #region 스프링 애니메이션 업데이트하기 - UpdateSpringAnimation(finalValue) /// <summary> /// 스프링 애니메이션 업데이트하기 /// </summary> /// <param name="finalValue">최종 값</param> private void UpdateSpringAnimation(float finalValue) { if(this.animation == null) { this.animation = this.compositor.CreateSpringVector3Animation(); this.animation.Target = "Scale"; } this.animation.FinalValue = new Vector3(finalValue); this.animation.DampingRatio = 0.6f; this.animation.Period = TimeSpan.FromMilliseconds(50); } #endregion #region 애니메이션 시작하기 - StartAnimation(element, animation) /// <summary> /// 애니메이션 시작하기 /// </summary> /// <param name="element">엘리먼트</param> /// <param name="animation">애니메이션</param> private void StartAnimation(UIElement element, CompositionAnimation animation) { if(ApiInformation.IsApiContractPresent("Windows.Foundation.UniversalApiContract", 7)) { element.StartAnimation(animation); } } #endregion } } |
