android.intent.action.MAIN

get all background notification message on your current Activity

in your background service.java

Intent i = new Intent("android.intent.action.MAIN");
i.putExtra("isNet", true);
context.sendBroadcast(i);

in your Activity where you want data

declare-----

private BroadcastReceiver mReceiver;


try {
    this.unregisterReceiver(this.mReceiver);
} catch (Exception ex) {
}

mReceiver = new BroadcastReceiver() {

    @Override    public void onReceive(Context context, Intent intent) {

//-----------here you get data from intent
    }
};
this.registerReceiver(mReceiver, new IntentFilter("android.intent.action.MAIN"));