如何让DIALOG点击确定按钮之后由于数据不合法不关闭

public void SetDialogIsClose(DialogInterface pDialog, Boolean pisClose)
    {
        try {
            Field _Field = pDialog.getClass().getSuperclass().getDeclaredField("mShowing");
            _Field.setAccessible(true);
            _Field.set(pDialog,pisClose);
        } catch (NoSuchFieldException e) {
            e.printStackTrace();
        } catch (IllegalAccessException e) {
            e.printStackTrace();
        }

    }