title: Why Bundle object is always null on onCreate()?
body: <p>I am trying get into Android programming, and for I am taken some examples from a book.
  In on of these example is requested to put the following code:</p>
  
  <pre><code>public class ExemploCicloVida extends Activity {
  
      /** Called when the activity is first created. */
      @Override
      public void onCreate(Bundle icicle) {
          super.onCreate(icicle);
          Log.i(TAG, getClassName() + " onCreate() called on: " + icicle);
  
          TextView t = new TextView(this);
          t.setText("Exemplo de ciclo de vida de uma Activity.\nConsulte os logs no LogCat");
          setContentView(t);
      }
  }
  </code></pre>
  
  <p>I wonder why Bundle object is always null on this case.</p>