第一部分可以通過使用附加屬性Panel.ZIndex被acomplished,將其設置爲較高的值,當你啓動動畫和較低的值在動畫完成時。第二部分(在窗口外面有一個控件)更加複雜。我嘗試了一些東西,這種方法似乎是最好的。當我遇到剪輯問題時,它使用全屏窗口而不是Popup。該元素的副本使用RenderTargetBitmap製作,然後放置在相同的位置。原始元素在複製動畫時隱藏。
public void PopupAnimation(UIElement element)
{
double w = element.RenderSize.Width,h = element.RenderSize.Height;
var screen = new Canvas();
var pos = element.PointToScreen(new Point(0, 0));
var rtb = new RenderTargetBitmap((int)w,(int)h, 96, 96, PixelFormats.Pbgra32);
rtb.Render(element);
Image i = new Image { Source = rtb, Width = w, Height = h,Stretch=Stretch.Fill};
Canvas.SetLeft(i, pos.X);
Canvas.SetTop(i, pos.Y);
screen.Children.Add(i);
var window = new Window() {
Content = screen, AllowsTransparency = true,
Width=SystemParameters.PrimaryScreenWidth,Height=SystemParameters.PrimaryScreenHeight,
WindowStyle=WindowStyle.None,ShowInTaskbar=false,Topmost=true,
Background=Brushes.Transparent,ShowActivated=false,Left=0,Top=0
};
var transform = new RotateTransform();
i.RenderTransformOrigin = new Point(0.5, 0.5);
i.RenderTransform = transform;
var anim = new DoubleAnimation { To = 360 };
anim.Completed += (s,e) =>
{
element.Visibility = Visibility.Visible;
var delay = new Storyboard { Duration = TimeSpan.FromSeconds(0.1) };
delay.Completed += (s2, e2) => window.Close();
delay.Begin();
};
window.ContentRendered += (s, e) =>
{
transform.BeginAnimation(RotateTransform.AngleProperty, anim);
element.Visibility = Visibility.Hidden;
};
window.Show();
}
我想你想要一個ScaleTransform。 – Reddog 2010-07-02 00:13:38