Android shape background

Yes you can use any shape file as background for any view. This sample create rounded background with white color and black border around the shape.

Sample :

rounded_corner.xml

<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle" >

    <corners
        android:bottomLeftRadius="10dp"
        android:bottomRightRadius="10dp"
        android:topLeftRadius="10dp"
        android:topRightRadius="10dp" />

    <stroke
        android:width="0.5dp"
        android:color="@color/color_grey" />

    <solid android:color="@color/color_white" />

</shape>

u can use this as,

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:layout_gravity="center_horizontal"
    android:background="@drawable/rounded_corner"
    android:orientation="vertical" >