Validando o valor de uma String

txtRecebeDados = (TextView) findViewById(R.id.txtRecebeDados);
		
		Intent i = getIntent();
		String user = i.getStringExtra("usuario").toString();
		String pass = i.getStringExtra("senha").toString();
		
		List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(2);
		nameValuePairs.add(new BasicNameValuePair("usuario", user));
		nameValuePairs.add(new BasicNameValuePair("senha", pass));

		try {           

		    HttpClient httpclient = new DefaultHttpClient();
		    HttpPost httppost = new HttpPost("URL");
		    httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
		    ResponseHandler<String> responseHandler = new BasicResponseHandler();

		    SetServerString = httpclient.execute(httppost, responseHandler);
		    
		    //txtRecebeDados.setText(SetServerString);

		}  catch(Exception ex) {
		    // failed
			ex.printStackTrace();
			txtRecebeDados.setText(ex.toString());
		}
		
		if(SetServerString.equals("1")) {
	    	txtRecebeDados.setText("Logado");
	    } else {
	    	txtRecebeDados.setText("Erro");
	    }

if(SetServerString.equals("1")) {
	    	txtRecebeDados.setText("Logado");
	    } else {
	    	txtRecebeDados.setText("Erro");
	    }