title: Set visibility of TextView in android not working
body: <p>My program runs into a runtime exception when I try to make the view 'GONE'.
  My code that handles it:</p>
  
  <pre><code>setContentView(R.layout.list_main);
  ... 
   lv =  getListView();
               View header = (View) findViewById(R.id.header_layout_root);
               TextView tv = (TextView) header.findViewById(R.id.new_highscore);
              tv.setVisibility(View.GONE);
  
   lv = getListView();
          LayoutInflater inflater = getLayoutInflater();
          View header = inflater.inflate(R.layout.list_header, (ViewGroup) findViewById(R.id.header_layout_root));
          lv.addHeaderView(header, null, false);
  
  mC = mDBHelper.getAllHighScores();
          startManagingCursor(mC);
  
          SimpleCursorAdapter adapter = new SimpleCursorAdapter(this, R.layout.row, mC, 
                  new String[] { DBAdapter.COL_NAME, DBAdapter.COL_SCORE }, 
                  new int[] { R.id.txtText1, R.id.txtText2 });
          lv.setAdapter(adapter);
  </code></pre>
  
  <p>xml:</p>
  
  <pre><code>&lt;LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:id="@+id/header_layout_root"
    android:background="#ffffff"
    android:orientation="vertical"&gt;
  &lt;TextView
      android:layout_width="fill_parent"
      android:layout_height="wrap_content"
      android:text="Pick Master High Scores"
      android:background="#000000"
      android:textColor="#ffffff"
      android:textSize="28dp"
      android:gravity="center_horizontal"
      android:paddingTop="10dp"
      android:paddingBottom="10dp"&gt;
  &lt;/TextView&gt;
  &lt;RelativeLayout
      android:layout_width="fill_parent"
      android:layout_height="wrap_content"
       android:id="@+id/header_layout_root1"&gt;
      &lt;ImageView
          android:id="@+id/sample_image"
          android:layout_width="fill_parent"
          android:layout_height="wrap_content"
          android:adjustViewBounds="true"
          android:src="@drawable/pickmaster"
          android:scaleType="fitXY"&gt;
      &lt;/ImageView&gt;
      &lt;TextView
          android:id="@+id/new_highscore"
          android:text="New High Score added!"
          android:layout_width="wrap_content"
          android:layout_height="wrap_content"
          android:textColor="#ffffffff"
          android:textSize="12dp"
          android:background="#AA000000"
          android:padding="5dp"
          android:layout_alignParentLeft="true"
          android:layout_alignBottom="@id/sample_image"&gt;
      &lt;/TextView&gt;
  &lt;/RelativeLayout&gt;
  </code></pre>
  
  <p></p>
  
  <p>The problem is, I think, that new_highscore is not in list_main, but it is in another xml file. I am using two as I have a listview with a header and image etc.</p>
  
  <p>Any ideas on making the view 'invisible' or just 'gone'?</p>
  
  <p>Thanks,</p>
  
  <p>Ben</p>