title: Creating LinearLayout in Java - Elements are not shown
body: <p>I am trying to create a LinearLayout with TextViews in Java, because the number of elements is dynamically specified so using XML won't work out for me.
  Here is a little sample of my Code:</p>
  
  <pre><code>public class MyActivity extends Activity {
  
  @Override
  public void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
  
      LinearLayout layout = new LinearLayout(this);
      layout.setOrientation(LinearLayout.VERTICAL);
      layout.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT));
  
  
      TextView titleView = new TextView(this);
      titleView.setWidth(LayoutParams.WRAP_CONTENT);
      titleView.setHeight(LayoutParams.WRAP_CONTENT);
      titleView.setTextAppearance(this, android.R.attr.textAppearanceLarge);
      titleView.setText("Hallo Welt!");
      layout.addView(titleView);
  
      setContentView(layout);
  
  }
  }
  </code></pre>
  
  <p>When i start this activity it does not show this TextView but it also does not show an error.
  Does anyone have an advice?</p>