title: Android - Two buttons in same line filling the whole width
body: <p>I have a little problem defining a Relative Layout. I have a List View with scroll and two buttons always visible at the bottom of the list view. I just would like my two button have 50% of the width, filling the line. This is my code:</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  
  &lt;RelativeLayout
      xmlns:android="http://schemas.android.com/apk/res/android"
      android:layout_width="fill_parent"
      android:layout_height="fill_parent" 
      android:orientation="vertical" &gt;
  
      &lt;Button 
          android:id="@+id/testbutton"
          android:layout_width="wrap_content"
          android:layout_height="wrap_content"
          android:layout_alignParentBottom="true"
          android:text="Save" /&gt;
  
      &lt;Button
          android:id="@+id/cancelButton"
          android:layout_width="wrap_content"
          android:layout_height="wrap_content"
          android:layout_alignParentBottom="true" 
          android:layout_toRightOf="@+id/testbutton"
          android:text="Cancel"/&gt;
  
      &lt;ListView android:layout_width="fill_parent"
          android:layout_height="fill_parent" 
          android:id="@+id/LstPeriodOptions"
          android:layout_alignParentTop="true" 
          android:layout_above="@id/testbutton" /&gt;
  
  &lt;/RelativeLayout&gt;
  </code></pre>
  
  <p>I tried to introduce the buttons in a Linear Layout and give the gravity=1 with width=0dp but in that case the ListView dissapears. Could you help me please?</p>
  
  <p>Sorry for my english. This is the result I would like to have: </p>
  
  <p><img src="https://i.imgur.com/FiWXhzp.jpg" alt="Result"></p>
  
  <p>Thanks a lot, best regards.</p>
  
  <p>EDIT: This is what I tried with Linear Layout:</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  
  &lt;RelativeLayout
      xmlns:android="http://schemas.android.com/apk/res/android"
      android:layout_width="fill_parent"
      android:layout_height="fill_parent" 
      android:orientation="vertical" &gt;
  
      &lt;LinearLayout 
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:id="@+id/container" &gt;
  
          &lt;Button 
              android:id="@+id/testbutton"
              android:layout_width="wrap_content"
              android:layout_height="wrap_content"
              android:layout_alignParentBottom="true"
              android:text="Guardar" /&gt;
  
          &lt;Button
              android:id="@+id/cancelButton"
              android:layout_width="wrap_content"
              android:layout_height="wrap_content"
              android:layout_alignParentBottom="true" 
              android:layout_toRightOf="@+id/testbutton"
              android:text="Cancelar"/&gt;
      &lt;/LinearLayout&gt;
  
      &lt;ListView android:layout_width="fill_parent"
          android:layout_height="fill_parent" 
          android:id="@+id/LstPeriodOptions"
          android:layout_alignParentTop="true" 
          android:layout_above="@id/container" /&gt;
  
  &lt;/RelativeLayout&gt;
  </code></pre>