如何创建Android ViewPager滑动超调/弹跳动画？

import android.content.Context;
import android.support.v4.view.ViewPager;
import android.util.AttributeSet;
import android.view.MotionEvent;
import android.view.animation.AccelerateInterpolator;

public class BounceViewPager extends ViewPager {
    private float mLastMotionX;
    private float mLastMotionY;

    public BounceViewPager(Context context) {
        super(context);
    }

    public BounceViewPager(Context context, AttributeSet attrs) {
        super(context, attrs);
    }

    @Override
    public boolean onTouchEvent(MotionEvent ev) {
        float x = ev.getX();
        float y = ev.getY();

        switch (ev.getAction()) {
            case MotionEvent.ACTION_DOWN:
                mLastMotionX = x;
                mLastMotionY = y;
                break;
            case MotionEvent.ACTION_MOVE:
                float deltaX = x - mLastMotionX;
                float deltaY = y - mLastMotionY;

                // 根据滑动距离设置动画效果
                setAnimation(deltaX);

                mLastMotionX = x;
                mLastMotionY = y;
                break;
            case MotionEvent.ACTION_UP:
                // 恢复原始状态
                resetAnimation();
                break;
        }

        return super.onTouchEvent(ev);
    }

    private void setAnimation(float deltaX) {
        // 根据滑动距离设置动画效果，这里使用了AccelerateInterpolator插值器
        float scale = 1 - Math.abs(deltaX) / getWidth();
        setScaleX(scale);
        setScaleY(scale);
        setAlpha(scale);
        setTranslationX(deltaX / 2);
        setInterpolator(new AccelerateInterpolator());
    }

    private void resetAnimation() {
        // 恢复原始状态
        setScaleX(1);
        setScaleY(1);
        setAlpha(1);
        setTranslationX(0);
    }
}