我使用的是精彩的框架NineOldAndroids，但我找不到任何设置支点在我的动画的看法。具体来说，我试图做一个的scaleX + 的scaleY 动画在左上角边缘的支点，所以 pivotX = 0和 pivotY = 0。蜂窝和超越，我只想设置 MyView的。 setPivotX（0）和 myView.setPivotY（0），但如何做到这一点的pre-蜂窝设备与NineOldAndroids？我试过如下：

I'm using the wonderful framework NineOldAndroids, but I can't find anything to set the pivot on my animated views. Specifically, I'm trying to do a scaleX + scaleY animation with a pivot on the top-left edge, so pivotX = 0 and pivotY = 0. On Honeycomb and beyond I would just set myView.setPivotX(0) and myView.setPivotY(0), but how to do it for pre-Honeycomb devices with NineOldAndroids? I tried the following:

AnimatorSet set = new AnimatorSet();
set.playTogether(
    ObjectAnimator.ofFloat(myView, "pivotX", -(myView.getWidth() / 2), -(myView.getWidth() / 2)),
    ObjectAnimator.ofFloat(myView, "pivotY", -(myView.getHeight() / 2), -(myView.getHeight() / 2)),
    ObjectAnimator.ofFloat(myView, "scaleX", 0, 1),
    ObjectAnimator.ofFloat(myView, "scaleY", 0, 1),
    ObjectAnimator.ofFloat(myView, "alpha", 0, 1)
);
set.setDuration(1000).start();

，但它不工作时，枢轴停留在视图的中心

but it doesn't work, the pivot stays at the center of the view.

你能帮助我吗？

感谢;）

推荐答案

由于笔者杰克沃顿商学院，这里是解决方案：

Thanks to the author Jake Wharton, here is the solution:

AnimatorProxy.wrap(myView).setPivotX(0);

在任何时候，甚至的在的有名为 ObjectAnimator.start（）。