title: I want to bring button(subview) to front in android
body: <pre><code>    &lt;?xml version="1.0" encoding="utf-8"?&gt;
      &lt;RelativeLayout 
        xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:tools="http://schemas.android.com/tools"
        android:id="@+id/topHeader"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" &gt;
  
  
        &lt;!-- Header aligned to top --&gt;
      &lt;!--   &lt;include layout="@layout/header_layout" /&gt; --&gt;
  
        &lt;!-- Footer aligned to bottom --&gt;
      &lt;!--   &lt;include layout="@layout/footer_layout" /&gt; --&gt;
  
        &lt;!-- Content below header and above footer --&gt;
      &lt;!--   &lt;include layout="@layout/intermediate_layout" /&gt; --&gt;
        &lt;RelativeLayout
          android:layout_width="fill_parent"
          android:layout_height="fill_parent"
          android:gravity="center"&gt;
  
          &lt;ImageView
          android:id="@+id/imgLogo"
          android:layout_width="wrap_content"
          android:layout_height="wrap_content"
          android:layout_centerInParent="true"
          android:src="@drawable/header" /&gt;
        &lt;/RelativeLayout&gt;
  
      &lt;/RelativeLayout&gt;
  </code></pre>
  
  <p><strong>I make layout xml, in which I put one button in center.And I want that button to front always.
          I adding some textview, imageview etc dynamically on this layout and that one centerised button should be bring front.
          This is possible in ios and i want in android.Any suggestion for this thoughts?
      I have above topHeaderlayout.xml</strong> 
  <strong>In this xml, I dynamically adds view.And one button should be front of view.</strong>   </p>