title: SetWidht Half of match_parent
body: <p>I need that my Relative Layout always have the half of the match_parent Width, How can I do that?</p>
  
  <p><code>&lt;RelativeLayout
                  android:id="@+id/new_post_nsfw_button"
                  android:layout_width="match_parent"
                  android:layout_height="46dp"
                  android:layout_alignRight="@+id/new_post_image"
                  android:layout_alignBottom="@+id/new_post_image"
                  android:layout_marginBottom="12dp"
                  android:layout_marginRight="12dp"&gt;
  &lt;/RelativeLayout&gt;</code></p>