RecyclerView.java 文件源码

public void smoothScrollBy(int dx, int dy, int duration, Interpolator interpolator) {
    if (mInterpolator != interpolator) {
        mInterpolator = interpolator;
        mScroller = ScrollerCompat.create(getContext(), interpolator);
    }
    setScrollState(SCROLL_STATE_SETTLING);
    mLastFlingX = mLastFlingY = 0;
    mScroller.startScroll(0, 0, dx, dy, duration);
    postOnAnimation();
}