title: Why my android GridView appear different from normal. It's covered by a holo blue block
body: <p>Why my android GridView appear different from normal. It's covered by a holo blue block.</p>
  
  <p>Here is my xml:</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
      xmlns:app="http://schemas.android.com/apk/res-auto"
      android:id="@+id/devicesScreen"
      android:layout_width="match_parent"
      android:layout_height="match_parent"
      android:layout_gravity="center_horizontal"
      android:gravity="center_horizontal"
      android:orientation="vertical"
      android:padding="@dimen/defaultPaddingSmall" &gt;
  
      &lt;TextView
          android:id="@+id/lblNoGatewayDevices"
          android:layout_width="wrap_content"
          android:layout_height="wrap_content"
          android:layout_gravity="center_horizontal"
          android:paddingTop="@dimen/tabDetailContainerTopPadding"
          android:textSize="@dimen/infoMsgTextSize"
          android:visibility="gone" /&gt;
  
      &lt;!-- &lt;ca.laplanete.mobile.pageddragdropgrid.PagedDragDropGrid --&gt;
      &lt;!-- xmlns:android="http://schemas.android.com/apk/res/android" --&gt;
      &lt;!-- android:id="@+id/gridGatewayDevices" --&gt;
      &lt;!-- android:layout_width="fill_parent" --&gt;
      &lt;!-- android:layout_height="0dip" --&gt;
      &lt;!-- android:layout_weight="1" --&gt;
      &lt;!-- android:choiceMode="multipleChoice" --&gt;
      &lt;!-- android:columnWidth="@dimen/grid_column_width" --&gt;
      &lt;!-- android:gravity="center" --&gt;
      &lt;!-- android:horizontalSpacing="5dp" --&gt;
      &lt;!-- android:numColumns="4" --&gt;
      &lt;!-- android:scrollbars="none" --&gt;
      &lt;!-- android:stretchMode="columnWidth" --&gt;
      &lt;!-- android:verticalSpacing="5dp" /&gt; --&gt;
  
      &lt;GridView
          android:id="@+id/gridGatewayDevices"
          android:layout_width="match_parent"
          android:layout_height="0dip"
          android:layout_weight="1"
          android:columnWidth="@dimen/grid_column_width"
          android:gravity="center"
          android:horizontalSpacing="5dp"
          android:numColumns="4"
          android:paddingTop="10dp"
          android:scrollbars="none"
          android:stretchMode="columnWidth"
          android:verticalSpacing="10dp" &gt;
      &lt;/GridView&gt;
  
  &lt;/LinearLayout&gt;
  </code></pre>
  
  <p>I don't want the blue color covering my GridView just like below.
  <a href="http://www.sofatrip.cn/WeChat_1435115165.jpeg" rel="nofollow">http://www.sofatrip.cn/WeChat_1435115165.jpeg</a></p>
  
  <p>Can anyone please tell me what's going on?</p>
  
  <p>I would appreciate it.</p>