安卓ObjectAnimator冻结用户界面

Question

我在我的应用程序中做了一些动画。工作正常，除了一个小细节。在动画完成之前，UI不会响应。我不能滚动，也不能做其他任何事情。

我读到把它放在一个Runnable中不是解决方案。所以我不知所措。

最终，我想让每个对象根据对象的大小使用不同的持续时间，这样动画在较小的圆圈上运行得更快，在较大的圆圈上运行得较慢。

下面是我用来测试动画的代码：

    HoleView holeView = (HoleView) view.findViewById(R.id.holeView1);
    ObjectAnimator oa1 = ObjectAnimator.ofInt(holeView, "animationTime", 0, holeView.getAnimationTime());
    oa1.setDuration(holeView.getAnimationTime());

    holeView = (HoleView) view.findViewById(R.id.holeView2);
    ObjectAnimator oa2 = ObjectAnimator.ofInt(holeView, "animationTime", 0, holeView.getAnimationTime());
    oa2.setDuration(holeView.getAnimationTime());

    holeView = (HoleView) view.findViewById(R.id.holeView3);
    ObjectAnimator oa3 = ObjectAnimator.ofInt(holeView, "animationTime", 0, holeView.getAnimationTime());
    oa3.setDuration(holeView.getAnimationTime());

    holeView = (HoleView) view.findViewById(R.id.holeView4);
    ObjectAnimator oa4 = ObjectAnimator.ofInt(holeView, "animationTime", 0, holeView.getAnimationTime());
    oa4.setDuration(holeView.getAnimationTime());

    AnimatorSet animatorSet = new AnimatorSet();
    animatorSet.play(oa1).with(oa2).with(oa3).with(oa4);
    animatorSet.start();

Answer 1

尝试改用value animator：

创建一个返回ValueAnimator的方法：

 public static ValueAnimator animate(float from, float to, long duration) {
        ValueAnimator anim = ValueAnimator.ofFloat(from, to);
        anim.setDuration(duration);
        return anim;
    }

然后在哪里使用它，例如，如果您想要设置名为ImageView的imageView的比例，请执行以下操作

//where 0 is the start value, 1 is the end value, and 850 is the duration in milliseconds
ValueAnimator imageAnimator = animate(0, 1, 850);

imageAnimator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
        @Override
        public void onAnimationUpdate(ValueAnimator anim) {
            float scale = (Float) anim.getAnimatedValue();
            imageView.setScaleX(scale);
            imageView.setScaleY(scale);
        }
    });

 imageAnimator.start();