broadcastreceiver - Android wait for WiFi scan to finish -

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i'm trying wait wifi scan finish in broadcast receiver!.

i have 1 activty (chooseactivity extends activity) , 1 class (scan).

in activity call scan class scan wifi , return boolean (true) when finish, here code.

my purpose separate scan of activity because call scan class in several places. 

public class chooseactivity extends activity implements onclicklistener{  private int idmap;  @override protected void oncreate(bundle savedinstancestate) {     // todo auto-generated method stub     super.oncreate(savedinstancestate);     setcontentview(r.layout.activity_choose);      idmap = this.getintent().getextras().getint("id_map");      ((button)this.findviewbyid(r.id.scan_button)).setonclicklistener(this);   }  @override public void onclick(view v) {     // todo auto-generated method stub     switch(v.getid()){     case r.id.scan_button:         scan scan = new scan();         toast.maketext(getapplicationcontext(), " "+scan.scanhotspots(idmap), toast.length_short).show();          break;     }    } }

and here scan class

public boolean scanhotspots(int idmap){      wifimanager = (wifimanager)context.getsystemservice(context.wifi_service);      wifimanager.startscan();      receiver = new receiver();     intentfilter intentfilter = new intentfilter(wifimanager.scan_results_available_action);     context.registerreceiver(receiver, intentfilter);      //here want stop execution wait test vairable change status          return test; }   public class receiver extends broadcastreceiver{       @override     public void onreceive(context context, intent intent) {         // todo auto-generated method stub         if(intent.getaction().equals(wifimanager.scan_results_available_action))         {                test=true;           }     }          } }

thank in advance.


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