<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="40dp"
    android:orientation="vertical">

    <TextView
        android:id="@+id/txt_back_top"
        android:layout_width="match_parent"
        android:layout_height="40dp"
        android:gravity="center"
        android:text="加载完毕 点击回到顶部"
        android:textColor="@color/empty_txt_color" />

</LinearLayout>