private void showNotification(Context ctx, String url) {
    Notification n = new Notification();
    n.flags |= Notification.FLAG_SHOW_LIGHTS;
    n.flags |= Notification.FLAG_AUTO_CANCEL;
    n.defaults = Notification.DEFAULT_SOUND;
    n.icon = R.drawable.ic_launcher;
    n.when = System.currentTimeMillis();
    Intent intent = new Intent(Intent.ACTION_VIEW);
    intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
    intent.setClassName(ctx.getPackageName(), MainActivity.class.getName());
    PendingIntent pi = PendingIntent.getActivity(ctx, 0, intent, 0);
    n.setLatestEventInfo(ctx, "title", "summary", pi);
    NotificationManager manager = (NotificationManager) ctx.getSystemService(Context.NOTIFICATION_SERVICE);
    manager.notify(0, n);
}

<animation-list
  xmlns:android="http://schemas.android.com/apk/res/android"
    android:oneshot="false">
  <item android:drawable="@drawable/stat_sys_download_anim0" android:duration="200" />
  <item android:drawable="@drawable/stat_sys_download_anim1" android:duration="200" />
  <item android:drawable="@drawable/stat_sys_download_anim2" android:duration="200" />
  <item android:drawable="@drawable/stat_sys_download_anim3" android:duration="200" />
  <item android:drawable="@drawable/stat_sys_download_anim4" android:duration="200" />
  <item android:drawable="@drawable/stat_sys_download_anim5" android:duration="200" />
</animation-list>