效果图：

代码：

1. shape_rec_blue.xml

<?xml version="1.0" encoding="utf-8"?><shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle">
    <stroke
        android:width="1dp"
        android:color="#418DF9" />
    <corners android:radius="4dp" /></shape>

1. 使用

<?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="match_parent"
              android:background="#F3F3F3"
              android:orientation="vertical">
    <LinearLayout
            android:id="@+id/ll_bottom_split"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:background="@drawable/shape_rec_blue"
            android:layout_margin="10dp"
            android:layout_gravity="center"
            android:orientation="horizontal">
        <TextView android:layout_width="wrap_content"
                  android:layout_height="wrap_content"
                  android:textSize="30dp"
                  android:text=" 测试测试测试测试 "/>
    </LinearLayout></LinearLayout>

作者：程序园中猿
链接：https://www.jianshu.com/p/8fa45d04ff37