EXTRA_NEW_RSSI 질문드립니다.

Question

EXTRA_NEW_RSSI 를 이용하여 와이파이의 RSSI를 실시간으로 받아오려고 하는데 잘 안됩니다ㅠㅠ

액티비티 안에서 아래와 같이 작성하였습니다.

 

       this.registerReceiver(this.myRssiChangeReceiver,
        		new IntentFilter(WifiManager.RSSI_CHANGED_ACTION));

    }
    
    private BroadcastReceiver myRssiChangeReceiver
    = new BroadcastReceiver(){

		@Override
		public void onReceive(Context arg0, Intent arg1) {
			// TODO Auto-generated method stub
			String details = "";
			int newRssi = arg1.getIntExtra(WifiManager.EXTRA_NEW_RSSI, 0);
			textRssi.setText(String.valueOf(newRssi));
			
			if (WifiManager.RSSI_CHANGED_ACTION.equals(arg1.getAction())) {
	        	Log.e("TEST", "Received action: " + arg1.getAction());
	        	
	        	details = Integer.toString( arg1.getIntExtra(WifiManager.EXTRA_NEW_RSSI, 0) );    
	        	
				Log.d("TAG", "[" + new Throwable().getStackTrace()[0].getFileName() + "][" + new Throwable().getStackTrace()[0].getMethodName() + "]["
				          + new Throwable().getStackTrace()[0].getLineNumber() + "] : "+details+"NEW RSSI");
	        }
		}};

조언 부탁드립니다ㅠㅠㅠ