@Override
 public void onClick(View v) {
   if (v == mNextBtn) {
     // set the value to framework
     if (mSelectedSystemIndex == WIN_XP || mSelectedSystemIndex == WIN_VISTA) {
       mConnectivityManager.setUsbInternet(true, ConnectivityManager.USB_INTERNET_SYSTEM_WINXP);
     } else if (mSelectedSystemIndex == WIN_SEVEN || mSelectedSystemIndex == WIN_EIGHT) {
       mConnectivityManager.setUsbInternet(true, ConnectivityManager.USB_INTERNET_SYSTEM_WIN7);
     }
   } else if (v == mBackBtn) {
     Bundle bundle = new Bundle();
     bundle.putInt(UsbSharingChoose.SYSTEM_TYPE, mSelectedSystemIndex);
     startFragment(this, UsbSharingChoose.class.getName(), 0, bundle, R.string.usb_sharing_title);
     getActivity().overridePendingTransition(R.anim.slide_left_in, R.anim.slide_right_out);
   }
   finishFragment();
 }