Adding view to bottom of layout inside a scrollview

Question

So my layout looks basically like this:

<ScrollView>
    <RelativeLayout>
        <BunchOfViews/>
        <ImageView android:layout_alignParentBottom="true"/>
    </RelativeLayout>
</ScrollView>

I have the ScrollView so all of the layout always is visible no matter the height of the screen. The problem is that on a very high screen, I still want my imageview to be at the bottom. However, a child of a ScrollView dont seem to have a defined bottom. The View is placed at the top of the layout. How can I solve this problem in a neat way?

Cheers,

Answer 1

From: http://code.google.com/p/k9mail/source/browse/k9mail/trunk/res/layout/account_setup_basics.xml?r=1314

This should help you:

<RelativeLayout
        android:layout_marginTop="-45dip" 
        android:padding="0dip"
        android:layout_alignParentBottom="true"
        android:gravity="bottom|right" 
        android:background="@android:drawable/bottom_bar"
        android:layout_height="fill_parent"
        android:layout_width="fill_parent">
        <Button
            android:id="@+id/manual_setup"
            android:text="@string/account_setup_basics_manual_setup_action"
            android:minWidth="@dimen/button_minWidth"
            android:layout_height="wrap_content"
            android:layout_width="wrap_content"
            android:layout_marginBottom="-4dip" 
            android:layout_alignParentLeft="true"
            android:layout_centerVertical="false" 
            />
        <Button
            android:id="@+id/next"
            android:text="@string/next_action"
            android:minWidth="@dimen/button_minWidth"
            android:layout_height="wrap_content"
            android:layout_width="wrap_content"
            android:drawableRight="@drawable/button_indicator_next"
            android:layout_marginBottom="-4dip" 
            android:layout_alignParentRight="true"
            android:layout_centerVertical="false" 
            />
    </RelativeLayout>

Answer 2

I ran into the same issue. I never could find a very pleasing solution, but here is how I did it. Maybe someone else has a better way, I hate adding layouts that don't do anything.

My hack was to add a dummy linearlayout at the bottom of the scrollview that has fill_parent to take up all the room and force the scrollview to fill the screen. Then add whatever component I want to that linearlayout.

Here is one of my layouts that does this:

<ScrollView
    android:layout_height="fill_parent"
    android:layout_width="fill_parent"
    android:fillViewport="true"
    android:layout_weight="1">
    <RelativeLayout
      android:layout_height="fill_parent"
      android:layout_width="fill_parent"
      android:layout_marginTop="15px">

    ... bunch of components

    <LinearLayout
        android:layout_width="fill_parent"
        android:layout_marginTop="5px"
        android:paddingTop="2px"
        android:layout_below="@+id/spinner"
        android:layout_height="fill_parent"
        android:gravity="center_horizontal|bottom">

          <Button
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Delete"
            android:paddingLeft="20px"
            android:paddingRight="20px" />
    </LinearLayout>
</RelativeLayout>

Answer 3

it seems that the linearlayout isn't necessary, all that is important is the fillViewPort. you could just use

    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignBottomParent="true">

now that you have specified the relativelayout to be at least the size of the screen.