Close Status Bar after Notification click

My notification contains several buttons :

1 button launch back the main activity (should close status bar when doing so)
4 of them send pending intents to control the music (should keep status bar open)

The problem is, the first button does not close the status bar...

the PendingIntent sent by the first button :

Intent activityIntent = new Intent(smp, MusicShaker.class)
            .setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP
                    | Intent.FLAG_ACTIVITY_SINGLE_TOP);
activityIntent.setAction(MyIntentAction.DO_LAUNCH_ACTIVITY_FROM_NOTIF);
remoteViews.setOnClickPendingIntent(R.id.notif_album_IV, PendingIntent
            .getActivity(ctxt, 0, activityIntent,
                    PendingIntent.FLAG_CANCEL_CURRENT));

the activity is correctly launched, but the status bar stays there and does not close itself.
Am I missing/misunderstanding a flag ? can I close the status bar progamaticaly from MyActivity.onResume() ?
edit: by the way, the notification is pushed by a service

thanks =)

Solution

ok, I found a solution... I could not reproduce the same behavior produced by standard notification, so I :
- made my imageButton "notif_album_IV" non clickable, and change it to an ImageView
- used this code :

builder.setContentIntent(PendingIntent.getActivity(smp, 0,
  activityIntent,PendingIntent.FLAG_CANCEL_CURRENT))

instead of setting the setOnClickPendingIntent "manually" on the image, the intent broadcast is handled by the content background