sheishuoAPP/app/res/layout/circle_of_friends_fragment.xml

<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:my="http://schemas.android.com/tools"
    android:id="@+id/main_content"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <android.support.design.widget.AppBarLayout
        android:id="@+id/appbar"
        android:layout_width="match_parent"
        android:layout_height="256dp">
        <!--android:fitsSystemWindows="true">-->

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




            <RelativeLayout
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:orientation="vertical"
                app:layout_collapseMode="parallax">
                <!--android:fitsSystemWindows="true"   >-->
                <ImageView
                    android:id="@+id/circle_background"
                    android:layout_width="match_parent"
                    android:layout_height="match_parent"
                    android:scaleType="centerCrop"
                    android:src="@drawable/temp_circle_background" />

                <LinearLayout
                    android:layout_width="match_parent"
                    android:layout_height="match_parent"
                    android:gravity="center"
                    android:orientation="horizontal">

                    <TextView
                        android:layout_width="wrap_content"
                        android:layout_height="wrap_content"
                        android:layout_weight="1"
                        android:enabled="false"
                        android:shadowColor="@color/black"
                        android:shadowDx="1"
                        android:shadowDy="1"
                        android:shadowRadius="1"
                        android:text="轻触换背景"
                        android:textAlignment="center"
                        android:textColor="@color/GreyWhite" />
                </LinearLayout>

                <LinearLayout
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:orientation="horizontal"
                    android:layout_alignParentBottom="true"
                    android:layout_marginStart="40dp"
                    android:layout_marginLeft="40dp"
                    android:layout_marginBottom="40dp">
                    <com.netease.nim.uikit.common.ui.imageview.HeadImageView
                        android:id="@+id/circle_avatar"
                        android:layout_width="56dp"
                        android:layout_height="56dp"
                        android:textStyle="bold"
                        android:textSize="30sp" />
                    <TextView
                        android:id="@+id/circle_username"
                        android:layout_width="match_parent"
                        android:layout_height="match_parent"
                        android:text="用户昵称"
                        android:textSize="22sp"
                        android:gravity="center"
                        android:textColor="@android:color/white"
                        android:layout_marginLeft="15dp"
                        android:layout_marginStart="15dp"
                        />
                </LinearLayout>

            </RelativeLayout>


            <!--<com.sheishuo.app.common.views.BaseToolbar-->
                <!--android:id="@+id/circle_toolbar"-->
                <!--android:layout_width="match_parent"-->
                <!--android:layout_height="?attr/actionBarSize"-->
                <!--app:layout_collapseMode="pin"-->
                <!--app:title="朋友圈"-->
                <!--app:right_text="发表"-->
                <!--style="@style/fullToolbarStyle"/>-->

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

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



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


        <android.support.v7.widget.RecyclerView
            android:id="@+id/circle_recyclerview"
            android:layout_width="match_parent"
            android:layout_height="match_parent"/>
    </LinearLayout>

    <!--<android.support.design.widget.FloatingActionButton-->
        <!--android:id="@+id/circle_fab"-->
        <!--android:layout_height="wrap_content"-->
        <!--android:layout_width="wrap_content"-->
        <!--app:layout_anchor="@id/appbar"-->
        <!--app:layout_anchorGravity="bottom|right|end"-->
        <!--android:src="@drawable/ic_add_friends"-->
        <!--android:layout_margin="24dp"-->
        <!--android:clickable="true"/>-->

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