private void checkNetworkConnection() {
    ConnectivityManager connMgr =
        (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
    NetworkInfo activeInfo = connMgr.getActiveNetworkInfo();

    if (activeInfo != null && activeInfo.isConnected()) {

        boolean wifiConnected = activeInfo.getType() == ConnectivityManager.TYPE_WIFI;
         boolean mobileConnected = activeInfo.getType() == ConnectivityManager.TYPE_MOBILE;

        if(wifiConnected) {
            Log.i(TAG, "WIFI connected");
            stsRede.setText("Conectado no WiFi");
        } else if (mobileConnected){
            Log.i(TAG, "Mobile Connected");
            //stsRede.setText("Conectado no 3G");
        }
    } else {
        Log.i(TAG,"Neither Mobile nor WIFi connected.");
        //stsRede.setText("Sem conexão a internet");
    }
   }