■ ExpressionAnimation 클래스를 사용해 관련된 다수 애니메이션을 함께 움직이는 방법을 보여준다.
▶ MainPage.xaml
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<?xml version="1.0" encoding="utf-8"?> <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 Margin="10"> <Grid.ColumnDefinitions> <ColumnDefinition Width="*" /> <ColumnDefinition Width="10" /> <ColumnDefinition Width="Auto" /> </Grid.ColumnDefinitions> <StackPanel Grid.Column="0"> <Button Name="button1" Margin="5" Width="100" Height="50" Content="Item 1" /> <Button Name="button2" Margin="5" Width="100" Height="50" Content="Item 2" /> <Button Name="button3" Margin="5" Width="100" Height="50" Content="Item 3" /> <Button Name="button4" Margin="5" Width="100" Height="50" Content="Item 4" /> </StackPanel> <StackPanel Grid.Column="2" VerticalAlignment="Center"> <RadioButtons Name="dampingRadioButtons" Header="Damping Ratio"> <RadioButton Content="0.2" /> <RadioButton Content="0.4" /> <RadioButton Content="0.6" IsChecked="True" /> <RadioButton Content="0.8" /> </RadioButtons> <Slider Name="periodSlider" Header="Period (in ms)" Minimum="25" Maximum="200" TickFrequency="25" StepFrequency="25" Value="50" /> </StackPanel> </Grid> </Page> |
▶ MainPage.xaml.cs
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using System; using System.Numerics; using Microsoft.UI.Composition; using Microsoft.UI.Xaml; using Microsoft.UI.Xaml.Controls; using Microsoft.UI.Xaml.Input; using Microsoft.UI.Xaml.Media; namespace TestProject { /// <summary> /// 메인 페이지 /// </summary> public sealed partial class MainPage : Page { //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Private #region Field /// <summary> /// 합성자 /// </summary> private Compositor compositor = CompositionTarget.GetCompositorForCurrentThread(); /// <summary> /// 스프링 벡터3 자연 동작 애니메이션 /// </summary> private SpringVector3NaturalMotionAnimation springAnimation; #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - MainPage() /// <summary> /// 생성자 /// </summary> public MainPage() { InitializeComponent(); Loaded += Page_Loaded; this.button1.PointerEntered += button_PointerEntered; this.button1.PointerExited += button_PointerExited; this.button2.PointerEntered += button_PointerEntered; this.button2.PointerExited += button_PointerExited; this.button3.PointerEntered += button_PointerEntered; this.button3.PointerExited += button_PointerExited; this.button4.PointerEntered += button_PointerEntered; this.button4.PointerExited += button_PointerExited; } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Private //////////////////////////////////////////////////////////////////////////////// Event #region 페이지 로드시 처리하기 - Page_Loaded(sender, e) /// <summary> /// 페이지 로드시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void Page_Loaded(object sender, RoutedEventArgs e) { UpdateSpringAnimation(1.0f); ExpressionAnimation animation = this.compositor.CreateExpressionAnimation(); animation.Expression = "(above.Scale.Y - 1) * 50 + above.Translation.Y % (50 * index)"; animation.Target = "Translation.Y"; animation.SetExpressionReferenceParameter("above", this.button1); animation.SetScalarParameter("index", 1); this.button2.StartAnimation(animation); animation.SetExpressionReferenceParameter("above", this.button2); animation.SetScalarParameter("index", 2); this.button3.StartAnimation(animation); animation.SetExpressionReferenceParameter("above", 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) { UpdateSpringAnimation(1.5f); (sender as UIElement).StartAnimation(this.springAnimation); } #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) { UpdateSpringAnimation(1f); (sender as UIElement).StartAnimation(this.springAnimation); } #endregion //////////////////////////////////////////////////////////////////////////////// Function #region 댐핑 비율 구하기 - GetDampingRatio() /// <summary> /// 댐핑 비율 구하기 /// </summary> /// <returns>댐핑 비율</returns> private float GetDampingRatio() { if(this.dampingRadioButtons.SelectedItem != null) { return (float)Convert.ToDouble((this.dampingRadioButtons.SelectedItem as RadioButton).Content); } return 0.6f; } #endregion #region 기간 구하기 - GetPeriod() /// <summary> /// 기간 구하기 /// </summary> /// <returns>기간</returns> private TimeSpan GetPeriod() { return TimeSpan.FromMilliseconds(this.periodSlider.Value); } #endregion #region 스프링 애니메이션 업데이트하기 - UpdateSpringAnimation(finalValue) /// <summary> /// 스프링 애니메이션 업데이트하기 /// </summary> /// <param name="finalValue">최종 값</param> private void UpdateSpringAnimation(float finalValue) { if(this.springAnimation == null) { this.springAnimation = this.compositor.CreateSpringVector3Animation(); this.springAnimation.Target = "Scale"; } this.springAnimation.FinalValue = new Vector3(finalValue); this.springAnimation.DampingRatio = GetDampingRatio(); this.springAnimation.Period = GetPeriod(); } #endregion } } |
