title: unable to make ListView header Clickable
body: <p>I am trying to make a header image placed on the top of <code>listView</code> clickable.</p>
  
  <p><strong>records.xml</strong></p>
  
  <pre><code>&lt;?xml version="1.0" encoding="UTF-8"?&gt;
  &lt;RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
      android:layout_width="fill_parent"
      android:layout_height="fill_parent"
      android:background="#efefef"
      android:orientation="vertical" &gt;
  
      &lt;include layout="@layout/header" /&gt;
  
      &lt;ListView
          android:id="@android:id/list"
          android:layout_width="fill_parent"
          android:layout_height="fill_parent"
          android:layout_marginTop="95dp"
          android:cacheColorHint="#00000000"
          android:divider="@android:color/black"
          android:dividerHeight="1.0sp"
          android:textColor="#000000" /&gt;
  
  &lt;/RelativeLayout&gt;
  </code></pre>
  
  <p><strong>header.xml</strong></p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
      android:id="@+id/headerImage"
      android:layout_width="fill_parent"
      android:layout_height="90dp"
      android:background="@drawable/header"
      android:clickable="true"
      android:scaleType="fitXY" &gt;
  
  &lt;/RelativeLayout&gt;
  </code></pre>
  
  <p>Implementation inside activity</p>
  
  <pre><code>layoutInflator=(LayoutInflater)getSystemService(Activity.LAYOUT_INFLATER_SERVICE);
  
          CustomAdapter adapter = new CustomAdapter(this, R.layout.list,R.id.imageStatus, data);
          ListView listView=getListView();
  
  
          //LayoutInflater inflater = getLayoutInflater();
          //ViewGroup header = (ViewGroup)layoutInflator.inflate(R.layout.header, listView, false);
          //listView.addHeaderView(header, null, false);
          View itemView = layoutInflator.inflate(R.layout.header,listView);
          ImageView txt = (ImageView)itemView.findViewById(R.id.headerImage);
          txt.setOnClickListener(new OnClickListener() {
  
              @Override
              public void onClick(View v) {
                  // TODO Auto-generated method stub
                  Toast.makeText(PickupList.this,"header has been pressed", 
                          Toast.LENGTH_LONG).show();
  
              }
          });
  
          setListAdapter(adapter);
  </code></pre>
  
  <p><strong>Logcat</strong></p>
  
  <pre><code>08-21 19:11:51.919: E/AndroidRuntime(22191): FATAL EXCEPTION: main
  08-21 19:11:51.919: E/AndroidRuntime(22191): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.android.myapp/com.android.myapp.PickupList}: java.lang.UnsupportedOperationException: addView(View, LayoutParams) is not supported in AdapterView
  08-21 19:11:51.919: E/AndroidRuntime(22191):    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1651)
  08-21 19:11:51.919: E/AndroidRuntime(22191):    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1667)
  08-21 19:11:51.919: E/AndroidRuntime(22191):    at android.app.ActivityThread.access$1500(ActivityThread.java:117)
  08-21 19:11:51.919: E/AndroidRuntime(22191):    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:935)
  08-21 19:11:51.919: E/AndroidRuntime(22191):    at android.os.Handler.dispatchMessage(Handler.java:99)
  08-21 19:11:51.919: E/AndroidRuntime(22191):    at android.os.Looper.loop(Looper.java:130)
  08-21 19:11:51.919: E/AndroidRuntime(22191):    at android.app.ActivityThread.main(ActivityThread.java:3687)
  08-21 19:11:51.919: E/AndroidRuntime(22191):    at java.lang.reflect.Method.invokeNative(Native Method)
  08-21 19:11:51.919: E/AndroidRuntime(22191):    at java.lang.reflect.Method.invoke(Method.java:507)
  08-21 19:11:51.919: E/AndroidRuntime(22191):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:867)
  08-21 19:11:51.919: E/AndroidRuntime(22191):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:625)
  08-21 19:11:51.919: E/AndroidRuntime(22191):    at dalvik.system.NativeStart.main(Native Method)
  08-21 19:11:51.919: E/AndroidRuntime(22191): Caused by: java.lang.UnsupportedOperationException: addView(View, LayoutParams) is not supported in AdapterView
  08-21 19:11:51.919: E/AndroidRuntime(22191):    at android.widget.AdapterView.addView(AdapterView.java:461)
  08-21 19:11:51.919: E/AndroidRuntime(22191):    at android.view.LayoutInflater.inflate(LayoutInflater.java:416)
  08-21 19:11:51.919: E/AndroidRuntime(22191):    at android.view.LayoutInflater.inflate(LayoutInflater.java:320)
  08-21 19:11:51.919: E/AndroidRuntime(22191):    at android.view.LayoutInflater.inflate(LayoutInflater.java:276)
  08-21 19:11:51.919: E/AndroidRuntime(22191):    at com.android.myapp.PickupList.ShowListOnUI(PickupList.java:103)
  08-21 19:11:51.919: E/AndroidRuntime(22191):    at com.android.myapp.PickupList.onCreate(PickupList.java:71)
  08-21 19:11:51.919: E/AndroidRuntime(22191):    at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
  08-21 19:11:51.919: E/AndroidRuntime(22191):    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1615)
  08-21 19:11:51.919: E/AndroidRuntime(22191):    ... 11 more
  </code></pre>