relative layout

- 위치를 부모 또는 상호간 상대적으로 지정된다.

- 엘리먼트는 주어진 순서대로 렌더링 된다.

[code]
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android
                android:layout_width="fill_parent"
                android:layout_height="wrap_content"
                android:background="@drawable/blue"
                android:padding="10px" >

    <TextView android:id="@+id/label"
             android:layout_width="fill_parent"
             android:layout_height="wrap_content"
             android:text="Type here:" />

    <EditText android:id="@+id/entry"
             android:layout_width="fill_parent"
             android:layout_height="wrap_content"
             android:background="@android:drawable/editbox_background"
             android:layout_below="@id/label" />     // @id/label below 지정!!!!

    <Button android:id="@+id/ok"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_below="@id/entry"         // @id/entry below 지정!!!
            android:layout_alignParentRight="true"
            android:layout_marginLeft="10px"         // 정렬을 left 로
            android:text="OK" />

    <Button android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_toLeftOf="@id/ok"         // @id/ok toLeftof 지정!!!
            android:layout_alignTop="@id/ok"
            android:text="Cancel" />
</RelativeLayout>
[/code]


http://developer.android.com/resources/tutorials/views/hello-relativelayout.html