public class MainActivity extends Activity {
    final String LOG_TAG = "myLogs";
    private VarsClass vc;
    private Handler mh;
    MyReceiver uiUpdated;
    private class MyReceiver extends BroadcastReceiver{
        private final Handler mahandler; // Handler used to execute code on the UI thread

        public MyReceiver(Handler handler) {
            this.mahandler = handler;
         
        }    	
        @Override
        public void onReceive(final Context context, final Intent intent) {
    	   Log.d(LOG_TAG, "receive in mainactivity done");		    	
    	   int resp=intent.getExtras().getInt("<MSG>");
    	   switch(resp){
	      case VarsClass.MSG_START_AUTH:{
         	 new Thread(new Runnable() {	    				   
    		    @Override
    		    public void run() {	
                       //...работа с SOAP
                       //............................
                       //шлем сообщение
                       Message mess = mahandler.obtainMessage(); 
	  	       Bundle b = new Bundle(); 
	  	       b.putString("TITLE", "Сообщение сервера"); 
	  	       b.putString("SERVERMSG", "ПРОБА"); 
	  	       mess.setData(b); 
	  	       mahandler.handleMessage(mess);        
                    }
                 }
              }
              //ДРУГИЕ CASE                   
           } 
        }
    }
    @Override
    protected void onCreate(Bundle savedInstanceState) {
       super.onCreate(savedInstanceState);
       setContentView(R.layout.activity_main);
       mh=new Handler() {
          public void handleMessage(Message msg) {
             final String title = msg.getData().getString("TITLE");
             final String servermsg = msg.getData().getString("SERVERMSG");
             Log.d(LOG_TAG, "showmessage");
             VarsClass.ShowSimpleDialog(
        	MainActivity.this, title, 
        	servermsg);                    
          }            
        };  
	uiUpdated = new MyReceiver(mh); // Create the receiver
        registerReceiver(uiUpdated, new IntentFilter("MAINACTIVITYMSG"));
     }
}

//ПРИ ОБЫЧНОМ ВЫЗОВЕ РАБОТАЕТ НОРМ
public class VarsClass {
    public static void ShowSimpleDialog(Context context,String title,String msg){
		AlertDialog.Builder builder = new AlertDialog.Builder(context);
		builder.setTitle(title)
				.setMessage(msg)
				.setIcon(R.drawable.ic_launcher)
				.setCancelable(false)
				.setNegativeButton("ОК",
						new DialogInterface.OnClickListener() {
							public void onClick(DialogInterface dialog, int id) {
								dialog.cancel();
							}
						});
		AlertDialog alert = builder.create();
		alert.show();    	
    }
     
}

	  				        	mahandler.post(new Runnable() {							
	  				        		@Override
	  				        		public void run() {
	  				        			// TODO Auto-generated method stub
	  				        			VarsClass.ShowSimpleDialog(
	  				        					MainActivity.this, "Ошибка", 
	  				        					emess); 
	  				        		}
	  				        	});