rounded_corner_shape.xml

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle">
    <solid android:color="@color/light_gray"/>
    <corners android:radius="16dp" />
</shape>

text_with_rounded_corner_bg.xml

<TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:padding="16dp"
        android:background="@drawable/rounded_corner_shape" />