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);
}
