public class Broadcast_Receiver extends BroadcastReceiver {


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

        if(intent.getAction().equals("android.provider.Telephony.SMS_SENT")){
            Intent service = new Intent(context, SMSService.class);
            context.startService(service);
            Log.d("Broadcast_Receiver", "message sent");
        }
        else if ((intent.getAction().equals("android.provider.Telephony.SMS_RECEIVED")))
        {
            Log.d("Broadcast_Receiver", "message received");
        }

    }
}

<receiver android:name=".APPServices.SMS.Broadcast_Receiver" android:enabled="true">
    <intent-filter>
        <action android:name="android.provider.Telephony.SMS_SENT"/>
    </intent-filter>
</receiver>