title: How to open application by clicking widget
body: <p>My WidgetProvider is thus: </p>
  
  <pre><code>package br.com.pedro.widget;
  
  import android.appwidget.AppWidgetProvider;
  
  public class MyWidgetProvider extends AppWidgetProvider {
  
  }
  </code></pre>
  
  <p>How to show a widget that displays a layout and when clicked goes to my main class?</p>