public async void PrepareEntranceEffect()
{
try
{
Compositor BaseCompositor = ElementCompositionPreview.GetElementVisual(BasePage).Compositor;
Vector2 WindowSize = new Vector2(Convert.ToSingle(Window.Current.Bounds.Width), Convert.ToSingle(Window.Current.Bounds.Height));
ContainerVisual Visual = BaseCompositor.CreateContainerVisual();
Visual.Size = WindowSize;
Visual.CenterPoint = new Vector3(WindowSize.X, WindowSize.Y, 0) * 0.5f;
ElementCompositionPreview.SetElementChildVisual(BasePage, Visual);
SpriteVisual BackgroundSprite = BaseCompositor.CreateSpriteVisual();
BackgroundSprite.Size = WindowSize;
BackgroundSprite.Brush = BaseCompositor.CreateColorBrush((Color)Application.Current.Resources["SystemAccentColor"]);
Visual.Children.InsertAtBottom(BackgroundSprite);
CompositionDrawingSurface ImageDrawingSurface = await SurfaceLoader.LoadFromUri(new Uri("ms-appx:///Assets/SplashScreen.png"));
SpriteVisual ImageSprite = BaseCompositor.CreateSpriteVisual();
ImageSprite.Brush = BaseCompositor.CreateSurfaceBrush(ImageDrawingSurface);
ImageSprite.Offset = new Vector3(Convert.ToSingle(SplashScreenRect.X), Convert.ToSingle(SplashScreenRect.Y), 0f);
ImageSprite.Size = new Vector2(Convert.ToSingle(SplashScreenRect.Width), Convert.ToSingle(SplashScreenRect.Height));
Visual.Children.InsertAtTop(ImageSprite);
}
catch (Exception ex)
{
Debug.WriteLine($"Error in PrepareEntranceEffect, message:{ex.Message}");
}
}
public async void PrepareEntranceEffect()
{
Compositor compositor = ElementCompositionPreview.GetElementVisual(BasePageObject).Compositor;
Vector2 windowSize = new Vector2((float)Window.Current.Bounds.Width, (float)Window.Current.Bounds.Height);
//1.创建ContainerVisual实例填充背景色和图片；
//2.设置中心缩放
ContainerVisual cv = compositor.CreateContainerVisual();
cv.Size = windowSize;
cv.CenterPoint = new Vector3(windowSize.X, windowSize.Y, 0) * 0.5f;
ElementCompositionPreview.SetElementChildVisual(BasePageObject, cv);
//创建sprite的背景色为APP的主题色
SpriteVisual backgroundSprite = compositor.CreateSpriteVisual();
backgroundSprite.Size = windowSize;
backgroundSprite.Brush = compositor.CreateColorBrush((Color)Application.Current.Resources["SystemAccentColor"]);
cv.Children.InsertAtBottom(backgroundSprite);
//创建包含初始屏图像的sprite的尺寸和位置
CompositionDrawingSurface surface = await SurfaceLoader.LoadFromUri(new Uri("ms-appx:///Assets/SplashScreen.png"));
SpriteVisual imageSprite = compositor.CreateSpriteVisual();
imageSprite.Brush = compositor.CreateSurfaceBrush(surface);
imageSprite.Offset = new Vector3((float)SplashScreenRect.X, (float)SplashScreenRect.Y, 0f);
imageSprite.Size = new Vector2((float)SplashScreenRect.Width, (float)SplashScreenRect.Height);
cv.Children.InsertAtTop(imageSprite);
}
public EntranceAnimationEffect(Page BasePageObject, UIElement UIObject, Rect SplashScreenRect)
{
this.UIObject = UIObject;
this.BasePageObject = BasePageObject;
this.SplashScreenRect = SplashScreenRect;
SurfaceLoader.Initialize(ElementCompositionPreview.GetElementVisual(BasePageObject).Compositor);
}
public EntranceAnimationEffect(FrameworkElement BasePage, FrameworkElement UIToShow, Rect SplashScreenRect, float ScaleFactor = 20f)
{
this.UIToShow = UIToShow;
this.BasePage = BasePage;
this.SplashScreenRect = SplashScreenRect;
this.ScaleFactor = ScaleFactor;
SurfaceLoader.Initialize(ElementCompositionPreview.GetElementVisual(BasePage).Compositor);
}
public void StartEntranceEffect()
{
ContainerVisual container = (ContainerVisual)ElementCompositionPreview.GetElementChildVisual(BasePage);
Compositor compositor = container.Compositor;
// 设置缩放和动画
const float ScaleFactor = 20f;
TimeSpan duration = TimeSpan.FromMilliseconds(1200);
LinearEasingFunction linearEase = compositor.CreateLinearEasingFunction();
CubicBezierEasingFunction easeInOut = compositor.CreateCubicBezierEasingFunction(new Vector2(.38f, 0f), new Vector2(.45f, 1f));
// 创建淡出动画
ScalarKeyFrameAnimation fadeOutAnimation = compositor.CreateScalarKeyFrameAnimation();
fadeOutAnimation.InsertKeyFrame(1, 0);
fadeOutAnimation.Duration = duration;
// Grid的动画
Vector2KeyFrameAnimation scaleUpGridAnimation = compositor.CreateVector2KeyFrameAnimation();
scaleUpGridAnimation.InsertKeyFrame(0.1f, new Vector2(1 / ScaleFactor, 1 / ScaleFactor));
scaleUpGridAnimation.InsertKeyFrame(1, new Vector2(1, 1));
scaleUpGridAnimation.Duration = duration;
// 初始屏动画
Vector2KeyFrameAnimation scaleUpSplashAnimation = compositor.CreateVector2KeyFrameAnimation();
scaleUpSplashAnimation.InsertKeyFrame(0, new Vector2(1, 1));
scaleUpSplashAnimation.InsertKeyFrame(1, new Vector2(ScaleFactor, ScaleFactor));
scaleUpSplashAnimation.Duration = duration;
// 设置Grid的中心缩放视觉
Visual gridVisual = ElementCompositionPreview.GetElementVisual(UIToShow);
gridVisual.Size = UIToShow.ActualSize;
gridVisual.CenterPoint = new Vector3(gridVisual.Size.X, gridVisual.Size.Y, 0) * .5f;
// 创建一个视觉组，当改组所有视觉执行完后不再显示
CompositionScopedBatch batch = compositor.CreateScopedBatch(CompositionBatchTypes.Animation);
container.StartAnimation("Opacity", fadeOutAnimation);
container.StartAnimation("Scale.XY", scaleUpSplashAnimation);
gridVisual.StartAnimation("Scale.XY", scaleUpGridAnimation);
batch.Completed += (s, a) =>
{
ElementCompositionPreview.SetElementChildVisual(BasePage, null);
SurfaceLoader.Uninitialize();
AnimationCompleted?.Invoke(this, null);
};
batch.End();
}
public void StartEntranceEffect()
{
try
{
TimeSpan AnimationDuration = TimeSpan.FromMilliseconds(1000);
ContainerVisual Container = (ContainerVisual)ElementCompositionPreview.GetElementChildVisual(BasePage);
ScalarKeyFrameAnimation FadeOutAnimation = Container.Compositor.CreateScalarKeyFrameAnimation();
FadeOutAnimation.InsertKeyFrame(1, 0);
FadeOutAnimation.Duration = AnimationDuration;
Vector2KeyFrameAnimation ScaleUIAnimation = Container.Compositor.CreateVector2KeyFrameAnimation();
ScaleUIAnimation.InsertKeyFrame(0.1f, new Vector2(1 / ScaleFactor, 1 / ScaleFactor));
ScaleUIAnimation.InsertKeyFrame(1, new Vector2(1, 1));
ScaleUIAnimation.Duration = AnimationDuration;
Vector2KeyFrameAnimation ScaleSplashAnimation = Container.Compositor.CreateVector2KeyFrameAnimation();
ScaleSplashAnimation.InsertKeyFrame(0, new Vector2(1, 1));
ScaleSplashAnimation.InsertKeyFrame(1, new Vector2(ScaleFactor, ScaleFactor));
ScaleSplashAnimation.Duration = AnimationDuration;
Visual UIVisual = ElementCompositionPreview.GetElementVisual(UIToShow);
UIVisual.Size = new Vector2((float)UIToShow.ActualWidth, (float)UIToShow.ActualHeight);
UIVisual.CenterPoint = new Vector3(UIVisual.Size.X, UIVisual.Size.Y, 0) * 0.5f;
CompositionScopedBatch BatchAnimation = Container.Compositor.CreateScopedBatch(CompositionBatchTypes.Animation);
Container.StartAnimation("Opacity", FadeOutAnimation);
Container.StartAnimation("Scale.XY", ScaleSplashAnimation);
UIVisual.StartAnimation("Scale.XY", ScaleUIAnimation);
BatchAnimation.Completed += (s, a) =>
{
ElementCompositionPreview.SetElementChildVisual(BasePage, null);
SurfaceLoader.Uninitialize();
AnimationCompleted?.Invoke(this, null);
};
BatchAnimation.End();
}
catch (Exception ex)
{
Debug.WriteLine($"Error in StartEntranceEffect, message:{ex.Message}");
}
}