title: android dialog set icon to title
body: <p>I have this dialog class and i want to set icon to its title:</p>
  
  <pre><code>public class DialogMealInformation extends Dialog implements
          android.view.View.OnClickListener {
      Context context;
      private TextView tv_information;
      private Button b_ok;
      private String information;
  
      public DialogMealInformation(Context context, String information) {
          // TODO Auto-generated constructor stub
          super(context);
          this.context = context;
          this.information = information;
          setContentView(R.layout.dialog_meal_information);
          getWindow().setLayout(android.view.ViewGroup.LayoutParams.FILL_PARENT,
                  android.view.ViewGroup.LayoutParams.WRAP_CONTENT);
          setTitle("Info !");
  
          initialize();
      }
  </code></pre>
  
  <p>it tried like this:</p>
  
  <pre><code>setTitle(R.layout.dialog_simple_header);
  </code></pre>
  
  <h3> dialog_simple_header.xml </h3>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
      android:layout_width="match_parent"
      android:layout_height="match_parent"
      android:orientation="horizontal" &gt;
  
      &lt;TextView
          android:id="@+id/tv_dialog_simple_header_title"
          android:layout_width="wrap_content"
          android:layout_height="wrap_content"
          android:text="@string/tv_information"
          android:drawableLeft="@drawable/more_information" /&gt;
  
  &lt;/LinearLayout&gt;
  </code></pre>
  
  <p>but the title after that was "res/layout/dialog_simple_header.x" just text, no icon is appear, why please , what is the solution , thanks alot</p>