title: HorizontalScrollView can host only one direct child
body: <p>I ve got a relative Layout and adding imageview programatically in my horizontal scrollview which is placed in xml.when i tried to add my imageview in horizontalScrollView ..i m getting the runtime exception .HorizontalScrollView can host only a single child.could you guys help me out</p>
  
  <pre><code>  RelativeLayout.LayoutParams HParams = new RelativeLayout.LayoutParams(
                  LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
          HParams.topMargin = 200 * displayHeight / 480;
          HsrollView.setLayoutParams(HParams);
  
           for (int i = 0; i &lt; 4; i++) { 
               ImageView btnTag = new ImageView(this);
               btnTag.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT));
               btnTag.setImageResource(R.drawable.book);
               btnTag.setTag(i);
               btnTag.setId(i);
               HsrollView.addView(btnTag);
           }
  </code></pre>
  
  <p><strong>XML file</strong></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="match_parent"
      android:background="@drawable/directbg"
      tools:context=".DirectorActivity" &gt;
      &lt;HorizontalScrollView
          android:id="@+id/Hscrollview"
          android:layout_width="wrap_content"
          android:layout_height="wrap_content" 
          android:scrollbars="none"&gt;
          &lt;LinearLayout
              android:layout_width="wrap_content"
              android:layout_height="wrap_content" &gt;
          &lt;/LinearLayout&gt;
      &lt;/HorizontalScrollView&gt;
      &lt;/RelativeLayout&gt;
  </code></pre>