Using layout_alignBaseline and layout_alignBottom in RelativeLayout together

Question

I'm trying to get a layout that looks something like this:

That is:

1. TextView aligned (with margins) to parent left and top.
2. An EditText to the left of the TextView, to the right of the Button and baseline-aligned with the TextView.
3. A Button aligned (with only a right margin) to the parent right. And here's the broken part: bottom-aligned to the EditText.

For whatever reason it doesn't work. Here's the code I'd expect to work:

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent" >

    <TextView
        android:id="@+id/text"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_alignParentTop="true"
        android:layout_marginLeft="32dp"
        android:layout_marginTop="32dp"
        android:text="Text:" />

    <EditText
        android:id="@+id/edit"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignBaseline="@+id/text"
        android:layout_toLeftOf="@+id/button"
        android:layout_toRightOf="@+id/text"
        android:ems="10" >

        <requestFocus />
    </EditText>

    <Button
        android:id="@+id/button"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentRight="true"
        android:layout_alignBottom="@+id/edit"
        android:layout_marginRight="32dp"
        android:text="Ok" />

</RelativeLayout>

That comes out like this:

What's going on?

Edit

Sorry I'm not sure why I changed this example, but in my code I'm actually using an ImageButton, not Button, so the solution can't involve aligning with the baseline of the button - the EditText must be aligned with the bottom (or middle if that is possible) of the button.

Answer 1

Try this..

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >

<TextView
    android:id="@+id/text"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_alignParentLeft="true"
    android:layout_alignParentTop="true"
    android:layout_marginLeft="32dp"
    android:layout_marginTop="32dp"
    android:text="Text:" />


<EditText
    android:id="@+id/edit"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_alignBaseline="@+id/text"
    android:layout_toLeftOf="@+id/button"
    android:layout_toRightOf="@+id/text"
    android:ems="10" >

    <requestFocus />
</EditText>

<Button
    android:id="@+id/button"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_alignBaseline="@+id/edit"
    android:layout_alignBottom="@+id/edit"
    android:layout_alignParentRight="true"
    android:layout_marginRight="30dp"
    android:text="Ok" />

Answer 2

Appears to be a bug affecting alignBaseline being used as an anchor for other children. https://code.google.com/p/android/issues/detail?id=73697&thanks=73697