XRefreshView与AppBarLayout滑动冲突，

[icqapp]

当XRefreshView上拉使得AppBarLayout隐藏后，我设置AppBarLayout.addOnOffsetChangedListener(this);事件监听来设置XRefreshView的setPullRefreshEnable方法，但是不管用！！！XR还是不能下拉使得AppBarLayout显示出来
@OverRide
public void onOffsetChanged(AppBarLayout appBarLayout, int verticalOffset) {
Log.d("AppBarLayout:","位移："+verticalOffset);
xRefreshView.setPullRefreshEnable(verticalOffset == 0);//不能下拉
}
xml代码如下

<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:icqapp="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent">

<!--第一部分：伸缩工具栏-->
<android.support.design.widget.AppBarLayout
    android:id="@+id/appbar"
    android:layout_width="match_parent"
    android:layout_height="100dp"
    android:fitsSystemWindows="true"
    android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar">

    <android.support.design.widget.CollapsingToolbarLayout
        android:id="@+id/collapsing_toolbar"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:fitsSystemWindows="true"
        icqapp:contentScrim="?attr/colorPrimary"
        icqapp:expandedTitleMarginEnd="64dp"
        icqapp:expandedTitleMarginStart="48dp"
        icqapp:layout_scrollFlags="scroll|exitUntilCollapsed">

        <ImageView
            android:id="@+id/backdrop"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:fitsSystemWindows="true"
            android:scaleType="centerCrop"
            android:src="@drawable/ic_toolbar_head"
            icqapp:layout_collapseMode="parallax" />


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

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


<LinearLayout
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    icqapp:layout_behavior="@string/appbar_scrolling_view_behavior">

    <com.andview.refreshview.XRefreshView
        android:id="@+id/xrefreshview"
        android:layout_width="match_parent"
        android:layout_height="match_parent">

        <android.support.v7.widget.RecyclerView
            android:id="@+id/rv_datas"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:scrollbars="vertical" />
    </com.andview.refreshview.XRefreshView>

</LinearLayout>

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

[icqapp]

已经解决！！！
可以这样改
@OverRide
public void onOffsetChanged(AppBarLayout appBarLayout, int verticalOffset) {
Log.d("AppBarLayout:","位移："+verticalOffset);
//xRefreshView.setPullRefreshEnable(verticalOffset == 0);//不能下拉
xRefreshView.setEnabled(verticalOffset == 0);
}