UWP中幾個ui元素的動畫

Question

這是我的代碼，用於對一個ui元素進行動畫處理（更改不透明度）。

    var animation = new DoubleAnimation
    {
        To = 0.0,
        Duration = TimeSpan.FromSeconds(5),
        FillBehavior = FillBehavior.HoldEnd
    };

    Storyboard story = new Storyboard();
    Storyboard.SetTarget(animation, element1);
    Storyboard.SetTargetProperty(animation, "Opacity");
    story.Children.Add(animation);        
    story.Begin();

由於某些原因，我只需要以編程方式就可以使用它。 問題是我需要同時對多個控件進行動畫處理。 有幾種控制解決方案嗎？

Answer 1

您將必須為此控件定義幾個動畫。

var animation1 = new DoubleAnimation
{
    To = 0.0,
    Duration = TimeSpan.FromSeconds(5),
    FillBehavior = FillBehavior.HoldEnd
};

var animation2 = new DoubleAnimation
{
    To = 0.0,
    Duration = TimeSpan.FromSeconds(5),
    FillBehavior = FillBehavior.HoldEnd
};

Storyboard.SetTarget(animation1, element1);
Storyboard.SetTargetProperty(animation1, "Opacity");

Storyboard.SetTarget(animation2, element2);
Storyboard.SetTargetProperty(animation2, "Opacity");

Storyboard story = new Storyboard();
story.Children.Add(animation1);
story.Children.Add(animation2);        
story.Begin();