如何在CollapsingToolbarLayout中滚动回收器视图

<android.support.design.widget.CoordinatorLayout
    ...
    >

    <android.support.design.widget.AppBarLayout
        ...
        >

        <android.support.design.widget.CollapsingToolbarLayout
            ...
            app:layout_scrollFlags="scroll|exitUntilCollapsed"
            >

            <ImageView
                ...
                app:layout_collapseMode="parallax"
                />

            <android.support.v7.widget.Toolbar
                ...
                app:layout_collapseMode="pin"
                />

        </android.support.design.widget.CollapsingToolbarLayout>

    </android.support.design.widget.AppBarLayout>

    <android.support.v7.widget.RecyclerView
        ...
        app:layout_behavior="@string/appbar_scrolling_view_behavior"
        />

</android.support.design.widget.CoordinatorLayout>

CollapsingToolbarLayout collapsingToolbarLayout = findViewById(R.id.collapsingToolbarLayout);
collapsingToolbarLayout.setTitle("标题");

AppBarLayout appBarLayout = findViewById(R.id.appBarLayout);
appBarLayout.addOnOffsetChangedListener(new AppBarLayout.OnOffsetChangedListener() {
    @Override
    public void onOffsetChanged(AppBarLayout appBarLayout, int verticalOffset) {
        // 根据verticalOffset的值，可以实现滚动时的一些动画效果
    }
});