unity3d - Send a broadcast message from Unity app on Android -

i need send broadcast message unity3d application running on android device. i've seen tutorial

http://jeanmeyblum.weebly.com/scripts--tutorials/communication-between-an-android-app-and-unity

but need opposite thing. unity app sender , android app receiver. hard obtain?

this code:

1) code created .jar import in unity

package com.example.unitysender;  import android.app.activity; import android.content.intent; import android.os.bundle;  public class mainactivity extends activity {      @override     protected void oncreate(bundle savedinstancestate) {         super.oncreate(savedinstancestate);         setcontentview(r.layout.activity_main);          intent intent = new intent();         intent.setaction("unitytoandroid");         sendbroadcast(intent);         finish();     }  } 

2) code in unity, method createinstance public static can call button.

using unityengine; using system.collections;  public class mainactivity : monobehaviour {      static androidjavaclass jc;      // use initialization     void start () {     }      // update called once per frame     void update () {      }      public static void createinstance()     {         jc = new androidjavaclass("com.example.unitysender.mainactivity");         jc.callstatic("createinstance");     } } 

i'm pretty sure it's wrong if can guide me in right direction i'll happy. in advance.