Implement shape of oval using XML

Last exercise demonstrate how to "Implement shape of rounded-rect using XML", with little bit of modification, we can shape of oval. Like this:

/res/drawable/oval.xml

<?xml version="1.0" encoding="utf-8"?>
<shape
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="oval">

    <gradient
        android:angle="90"
        android:startColor="#FF000000"
        android:endColor="#FFFFFFFF"
        android:type= "linear" />   
    <stroke
        android:width="1dp"
        android:color="#FF000000" />
    <padding
        android:left="15dp"
        android:top="15dp"
        android:right="15dp"
        android:bottom="15dp" />
</shape>

Layout with shape of oval.

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:padding="10dp"
    tools:context=".MainActivity" >

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@string/hello_world" />

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical"
        android:background="@drawable/oval" >
        
        <ImageView 
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:src="@drawable/ic_launcher"
            android:background="@drawable/oval" />
        <TextView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="normal TextView"
            android:layout_margin="5dp" />
        <TextView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="TextView with roundrect"
            android:layout_margin="5dp"
            android:background="@drawable/oval" />
        <EditText
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:hint="normal EditText"
            android:layout_margin="5dp" />
        <EditText
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:hint="EditText with roundrect"
            android:text="Hello"
            android:layout_margin="5dp"
            android:background="@drawable/oval" />
    </LinearLayout>

</LinearLayout>