new AlertDialog.Builder(this)
　 .setTitle(R.string.config_url)
   .setItems(new CharSequence[]{
        getString(R.string.config_url_scan),
        getString(R.string.config_url_manual)
     }, new OnClickListener() {
             @Override
             public void onClick(DialogInterface dialogInterface, int i) {
                 switch (i) {
                     case 0:
                         scanForProxyUrl();
                         break;
                     case 1:
                         showProxyUrlInputDialog();
                         break;
                 }
          }
    }).show();