在动画集结束时在MonoTouch中实现CAKeyFrameAnimation回调？ [英] Implementing a CAKeyFrameAnimation callback in MonoTouch at the end of an animation set?

问题描述

我的代码的工作原理和我的动画，但我不知道如何做到这一点：

My code works and I animate, but I'm not sure how to do this:

动画结束回调CALayer？

...在MonoTouch中。

...in MonoTouch.

这是我有：

public partial class MyCustomView: UIView
{
    // Code Code Code

    private void RunAnimation()
    {        
         CAKeyFrameAnimation pathAnimation = new CAKeyFrameAnimation();
         pathAnimation.KeyPath = "position";
         pathAnimation.Path = trail; //A collection of PointFs
         pathAnimation.Duration = playbackSpeed;
         Character.Layer.AddAnimation(pathAnimation,"MoveCharacter");
    }

    //Code Code Code
}

MyCustomView已经从UIView继承，我不能继承自两个类。当动画完成时，我如何调用一个名为AnimationsComplete（）的函数？

MyCustomView is already inheriting from UIView and I can't inherit from two classes. How would I call a function called "AnimationsComplete()" when this is done animating?

推荐答案

我的dev机器，但我想你创建一个类从CAAnimationDelegate降序，实现void AnimationStopped（CAAnimation anim，bool finished）方法，然后将这个类的实例分配给pathAnimation.Delegate（在你的示例）。

I'm not in front of my dev machine, but I think you create a class descending from CAAnimationDelegate, implement the "void AnimationStopped(CAAnimation anim, bool finished) method" and then assign an instance of this class to pathAnimation.Delegate (in your sample).

所以，这样的东西（警告 - 未经测试的代码）：

So, something like this (warning - untested code):

public partial class MyCustomView: UIView
{
    private void RunAnimation()
    {        
        CAKeyFrameAnimation pathAnimation = new CAKeyFrameAnimation();

        // More code.

        pathAnimation.Delegate = new MyCustomViewDelegate();

   }
}

public class MyCustomViewDelegate : CAAnimationDelegate
{
    public void AnimationStopped(CAAnimation anim, bool finished)
    {
        // More code.
    }
}

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