<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent">
    <TextView
        android:id="@+id/tv_content"
        android:textColor="#FFFFFF"
        android:textSize="13sp"
        android:background="#349DFF"
        android:text="你好啊"
        android:layout_marginTop="@dimen/dp_10"
        android:layout_centerInParent="true"
        android:padding="@dimen/dp_5"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />

</RelativeLayout>