title: Cardview half width of the screen
body: <p>This is my layout. I am putting in a GridView. I want two columns in GridView which fill the width of the screen. Not able to make CardView layout to fill half of the screen. I followed this <a href="https://stackoverflow.com/questions/9470790/button-half-width-of-screen/9470815?noredirect=1#comment51626486_9470815">link</a> but no result.</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;android.support.v7.widget.CardView
  xmlns:android="http://schemas.android.com/apk/res/android"
  xmlns:card_view="http://schemas.android.com/apk/res-auto"
  android:layout_width="150dp" android:layout_height="wrap_content"
  android:gravity="center"
  card_view:cardCornerRadius="2dp"
  card_view:cardElevation="2sp"
  card_view:cardUseCompatPadding="true"
  card_view:contentPadding="5dp"
  &gt;
  &lt;RelativeLayout
      android:layout_width="match_parent"
      android:layout_height="wrap_content"
      &gt;
      &lt;TextView
          android:layout_width="fill_parent"
          android:layout_height="wrap_content"
          android:id="@+id/quote"
          android:text="jalkdjlajflkdajf akjfdlajfljal alfjk"
          android:layout_margin="3dp"
          /&gt;
      &lt;RelativeLayout
          android:layout_width="match_parent"
          android:layout_height="wrap_content"
          android:layout_marginTop="5dp"
          android:layout_marginLeft="2dp"
          android:layout_below="@+id/quote"
          &gt;
          &lt;TextView
              android:layout_width="wrap_content"
              android:layout_height="wrap_content"
              android:id="@+id/time"
              android:layout_alignParentLeft="true"
              android:text="time started"
              android:layout_centerVertical="true"
              /&gt;
          &lt;Button
              android:layout_width="wrap_content"
              android:layout_height="wrap_content"
              android:id="@+id/button1"
              android:layout_alignParentRight="true"
              android:text="5"
              android:layout_marginLeft="3dp"
              /&gt;
          &lt;Button
              android:layout_width="wrap_content"
              android:layout_height="wrap_content"
              android:id="@+id/button2"
              android:layout_toLeftOf="@+id/button1"
              android:text="5"
              android:layout_marginLeft="3dp"
              /&gt;
          &lt;Button
              android:layout_width="wrap_content"
              android:layout_height="wrap_content"
              android:id="@+id/button3"
              android:layout_toLeftOf="@+id/button2"
              android:text="5"
              android:layout_marginLeft="3dp"
              /&gt;
          &lt;Button
              android:layout_width="wrap_content"
              android:layout_height="wrap_content"
              android:id="@+id/button4"
              android:layout_toLeftOf="@+id/button3"
              android:text="5"
              android:layout_marginLeft="3dp"
              /&gt;
      &lt;/RelativeLayout&gt;
  &lt;/RelativeLayout&gt;
  </code></pre>
  
  <p></p>