Question

rotating button click 180 degree位于AnimationServices.RotationAnimation((FrameworkElement)sender, 180, 1, "Y"); // working，工作正常

rotating

但是当我按AnimationServices.RotationAnimation((FrameworkElement)sender, 90, 1, "Y"); AnimationServices.RotationAnimation((FrameworkElement)sender, 90, 1, "Y"); // not working做同样的事情时，两次90度角比不工作

rotating

仅90 degree一个internal static void RotationAnimation(FrameworkElement sender, int Angle, int DurationInMSec, String Axis) { var storyboard = new Storyboard(); var easingDoubleKeyFrame1 = new EasingDoubleKeyFrame { KeyTime = TimeSpan.FromMilliseconds(0), Value = 0 }; var easingDoubleKeyFrame2 = new EasingDoubleKeyFrame { KeyTime = TimeSpan.FromMilliseconds(DurationInMSec), Value = Angle }; var doubleAnimationUsingKeyFrames = new DoubleAnimationUsingKeyFrames(); doubleAnimationUsingKeyFrames.KeyFrames.Add(easingDoubleKeyFrame1); doubleAnimationUsingKeyFrames.KeyFrames.Add(easingDoubleKeyFrame2); var rotateTransform = new PlaneProjection(); var button = (FrameworkElement)sender; button.Projection = rotateTransform; Storyboard.SetTarget(doubleAnimationUsingKeyFrames, rotateTransform); Storyboard.SetTargetProperty(doubleAnimationUsingKeyFrames, new PropertyPath("Rotation" + Axis)); storyboard.Children.Add(doubleAnimationUsingKeyFrames); storyboard.Begin(); }角度

有没有人对这个奇怪的问题有任何想法？

更新

{{1}}

Answer 1

如果您不提供RotationAnimation方法的代码，很难说出发生了什么。尽管如此，这种方法很可能同时尝试两次执行相同的动画。所以你有两个动画试图将相同的元素从0度旋转到90度。这使得... 90度。更改当前正在执行的动画的旋转角度，或者在启动新动画之前等待当前动画完成执行。要求两个不同的动画同时动画相同的属性不可能提供一致的结果。

编辑：看到你的代码后，确实是问题所在。你正在创建两个动画，它们都会从0度旋转到90度。您需要链接两个动画，并在方法中添加“origin”参数，以便第二个动画将从90°开始旋转（而不是从0开始）。要链接动画，您可以修改方法以返回创建的动画，然后订阅Completed事件。

类似的东西：

internal static Storyboard RotationAnimation(FrameworkElement sender, int origin, int Angle, int DurationInMSec, String Axis)
{
    var storyboard = new Storyboard();

    var easingDoubleKeyFrame1 = new EasingDoubleKeyFrame
    {
        KeyTime = TimeSpan.FromMilliseconds(0),
        Value = origin
    };

    var easingDoubleKeyFrame2 = new EasingDoubleKeyFrame
    {
        KeyTime = TimeSpan.FromMilliseconds(DurationInMSec),
        Value = Angle + origin
    };

    var doubleAnimationUsingKeyFrames = new DoubleAnimationUsingKeyFrames();

    doubleAnimationUsingKeyFrames.KeyFrames.Add(easingDoubleKeyFrame1);
    doubleAnimationUsingKeyFrames.KeyFrames.Add(easingDoubleKeyFrame2);

    var rotateTransform = new PlaneProjection();

    var button = (FrameworkElement)sender;
    button.Projection = rotateTransform;

    Storyboard.SetTarget(doubleAnimationUsingKeyFrames, rotateTransform);
    Storyboard.SetTargetProperty(doubleAnimationUsingKeyFrames, new PropertyPath("Rotation" + Axis));
    storyboard.Children.Add(doubleAnimationUsingKeyFrames);
    storyboard.Begin();

    return storyboard;
}

然后你可以这样称呼它：

var storyboard = RotateAnimation((FrameworkElement)sender, 0, 90, 1, "Y");
storyboard.Completed += (s, e) => RotateAnimation((FrameworkElement)sender, 90, 90, 1, "Y");

storyBoard动画旋转问题

1 个答案: