title: How to write onclick llistener for notification item in android?
body: <p>Hi i am new to android. 
  I am implementing a code with notification functionality. Here i have two activities in my application those are ActivityA, and ActivityB.
  I want to start ActivityB from notification and i need to send some flag or some value to the ActivityB. How can i send the data like int value or flag to that called activity using notification on click. The problem is when i am launching activity from launcher icon first it will called ActivityA and from that ActivityA i am passing some value to ActivityB.
  But when i am launching ActivityB from notification i con't send any values to that activity so it is giving force close.</p>
  
  <p>To call activity from notification i am using this code</p>
  
  <pre><code>mNotificationManager = (NotificationManager)getSystemService(NOTIFICATION_SERVICE);
  final Notification notifyDetails = new Notification(R.drawable.android,"New Alert, Click Me!",System.currentTimeMillis());
  Context context = getApplicationContext();
  CharSequence contentTitle = "Notification Details...";
  CharSequence contentText = "Browse Android Official Site by clicking me";               
  Intent notifyIntent = new Intent(Intent.ACTION_MAIN);
  notifyIntent.setComponent(new ComponentName("mypackage","mypackage.ActivityB"));
  
  PendingIntent intent = PendingIntent.getActivity(SimpleNotification.this, 0,notifyIntent, android.content.Intent.FLAG_ACTIVITY_NEW_TASK);
  notifyDetails.setLatestEventInfo(context, contentTitle, contentText, intent);
  mNotificationManager.notify(SIMPLE_NOTFICATION_ID, notifyDetails);
  </code></pre>
  
  <p>Please advise me how can i send values from notification to called activity.</p>