title: How to get appWidgetId in AppWidgetProvider?
body: <p>I need to get the specific appWidgetId in AppWidgetProvider, not a bundle of appWidgetIds[] but the specific id which user clicked. </p>
  
  <p>I could get it in its configure activity, using the "intent.getExtra().getInt(AppWidgetManager.APP_WIDGET_ID)" says like 504. </p>
  
  <p>But it is so different in AppWidgetProvider, I will be appreciate it if anyone give me a hand.thanks in advance.</p>
  
  <pre><code>public class WidgetBox extends AppWidgetProvider implements Widget {
  
  private int _widgetId = ?; // not appWidgetIds[]
  
  }
  </code></pre>