title: Button alignment to the side
body: <p>When I want to set the button to be from one side to another it gives me a 0.5 cm free space but I want to make it from one side to another without spaces. Here is my code so far. I made a test app and it worked so I'm trying to finish it and add some new stuff.</p>
  
  <pre><code>&lt;RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
  xmlns:tools="http://schemas.android.com/tools"
  android:layout_width="match_parent"
  android:layout_height="wrap_content"
  android:background="@drawable/back"
  android:paddingBottom="@dimen/activity_vertical_margin"
  android:paddingLeft="@dimen/activity_horizontal_margin"
  android:paddingRight="@dimen/activity_horizontal_margin"
  android:paddingTop="@dimen/activity_vertical_margin"
  tools:context=".Main" &gt;
  
  &lt;Button
      android:id="@+id/button1"
      android:layout_width="fill_parent"
      android:layout_height="wrap_content"
      android:text="Button" /&gt;
  
  &lt;/RelativeLayout&gt;
  </code></pre>