sheishuoAPP/app/res/layout/chat_rooms.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
    android:id="@+id/rlRoot"
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:background="@color/bussiness_card_gridview_bg">

    <com.netease.nim.uikit.common.ui.ptr2.PullToRefreshLayout
        android:id="@+id/swipe_refresh"
        android:layout_width="match_parent"
        android:layout_height="match_parent">

        <android.support.v7.widget.RecyclerView
            android:id="@+id/recycler_view"
            android:layout_width="match_parent"
            android:layout_height="match_parent"/>
    </com.netease.nim.uikit.common.ui.ptr2.PullToRefreshLayout>

</RelativeLayout>