layout for picture gallery with controls at the bottom of the screen, gallery centered between top of controls and top of device

gallery.xml

<?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="fill_parent"
				android:background="@color/gallery_background" 
		
				>
	<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        android:layout_alignParentTop="true" 
        android:id="@+id/header"
    >

    </LinearLayout>
     

     

    
	<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
	    android:orientation="vertical"
	    android:background="@color/gallery_background" 
	    android:layout_height="wrap_content" 
	    android:layout_width="wrap_content"
	    android:layout_alignParentBottom="true"
	    android:id="@+id/footer" 
	    >
	    
		
			<TextView android:id="@+id/lblCategory"
					android:text="@string/lblCategory" 
					android:singleLine="true" 
					android:layout_width="fill_parent"
					android:layout_height="wrap_content"
								 
				/>
				
			<Spinner android:layout_width="fill_parent" 
						android:layout_height="wrap_content" 
						android:id="@+id/txtCategory" 
						android:layout_below="@+id/lblCategory"/>
				
			<TextView android:id="@+id/lblNote"
				android:text="@string/lblNote" 
				android:singleLine="true" 
				android:layout_width="fill_parent"
				android:layout_height="wrap_content"
				android:layout_below="@+id/txtCategory"
				 
			/>
	  		<EditText android:id="@+id/txtNote"
				android:singleLine="false" 
				android:layout_width="fill_parent"
				android:layout_height="wrap_content"
				android:layout_below="@+id/lblNote"
				android:imeOptions="actionNext"
				 
			/>
		
	
		    <Button android:id="@+id/btnTake" 
		    		android:layout_height="wrap_content" 
		    		android:layout_below="@+id/txtNote"
		    		android:text="@string/btnTake" 
		    		android:layout_width="wrap_content"
		    		/>
		    
		    <Button android:id="@+id/btnAttach" 
		    		android:layout_height="wrap_content" 
		    		android:layout_below="@+id/txtNote"
		    		android:layout_toRightOf="@id/btnTake"
		    		android:text="@string/btnAttach"
		    		android:layout_width="wrap_content"
		    		/>
		  
		    		 
			<Button android:id="@+id/btnNext" 
				
				android:layout_width="wrap_content"
				android:layout_below="@+id/txtNote"
				android:layout_toRightOf="@id/btnAttach"
				android:text="@string/btnNext" 
				android:layout_height="wrap_content"/>
		
			<Button android:id="@+id/btnExit" 
				android:layout_height="wrap_content"
				android:layout_width="wrap_content"
				android:layout_below="@+id/txtNote"
				android:layout_toRightOf="@id/btnNext"
				android:text="@string/btnExit"
				/>	  
	
	          
	    <ImageView android:id="@+id/gallery_image"
	               android:layout_width="@dimen/gps_width"
	               android:layout_height="@dimen/gps_height"
	               android:src="@drawable/gps_not_connected"
	               android:layout_below="@+id/txtNote"
					android:layout_toRightOf="@id/btnExit"
	               android:contentDescription="@string/gallery_gps"
	               android:layout_alignParentRight="true"
	               />
	  
	  
	</RelativeLayout>
  

		<Gallery
		android:id="@+id/photoGallery"
		android:layout_width="fill_parent"
		android:layout_height="wrap_content"
		android:background="@color/gallery_background" 
		android:layout_above="@id/footer"
        android:layout_below="@id/header"			
		
		 />

</RelativeLayout>