public void showStateDialog() { String msg = new StringBuilder().append(mCard.getAidName()).append(" detected").toString(); AlertDialog.Builder builder = new AlertDialog.Builder(this); builder .setMessage(msg) .setNegativeButton( "No", new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int id) { dialog.cancel(); } }); AlertDialog alert = builder.create(); alert.show(); }