■ 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 Margin="50" Loaded="grid_Loaded"> <Grid.ColumnDefinitions> <ColumnDefinition Width="*" /> <ColumnDefinition Width="50" /> <ColumnDefinition Width="Auto" /> </Grid.ColumnDefinitions> <Grid Name="grid" Grid.Column="0" Width="200" Height="200" /> <Slider Grid.Column="2" VerticalAlignment="Center" MinWidth="150" Header="반경 변경" Minimum="200" Maximum="400" ValueChanged="slider_ValueChanged" /> </Grid> </Page> |
▶ MainPage.xaml.cs
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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.Controls.Primitives; 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; #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", 8)) { return; } string radius = "(grid.ActualSize.X / 2)"; string theta = ".02 * " + radius + " + ((2 * Pi) / total) * index"; string xOffset = radius; string yOffset = "0"; string expression = string.Format("Vector3({0} * cos({1}) + {2}, {0} * sin({1}) + {3}, 0)", radius, theta, xOffset, yOffset); int elementCount = 8; for(int i = 0; i < elementCount; i++) { Button button = new Button() { Content = "버튼" }; this.grid.Children.Add(button); ExpressionAnimation animation = this.compositor.CreateExpressionAnimation(); animation.Expression = expression; animation.SetScalarParameter("index", i + 1); animation.SetScalarParameter("total", elementCount); animation.Target = "Translation"; animation.SetExpressionReferenceParameter("grid", grid); button.StartAnimation(animation); } } #endregion #region 슬라이더 값 변경시 처리하기 - slider_ValueChanged(sender, e) /// <summary> /// 슬라이더 값 변경시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void slider_ValueChanged(object sender, RangeBaseValueChangedEventArgs e) { if(this.grid == null) { return; } this.grid.Width = this.grid.Height = e.NewValue; } #endregion } } |