title: How to Add an event in Google Calendar from Activity?
body: <p>I tried using content providers, but the event was not added to the calendar.</p>
  
  <pre><code>final ContentResolver cr = ctx.getContentResolver();
  
  ContentValues cv = new ContentValues();    
  cv.put("calendar_id", l_calId);    
  cv.put("title", title);    
  cv.put("description", description);    
  cv.put("dtstart", millis1 );    
  cv.put("hasAlarm", 1);   
  cv.put("dtend", millis2);    
  cv.put("eventLocation", "Hall: "+location);    
  cv.put("transparency", 1);    
  cv.put("hasAlarm", 1);    
  
  
  Uri newEvent ;    
  if (Integer.parseInt(Build.VERSION.SDK) == 8 )    
      newEvent = cr.insert(Uri.parse("content://com.android.calendar/events"), cv);    
  else    
      newEvent = cr.insert(Uri.parse("content://com.android.calendar/events"), cv);
  </code></pre>