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EditText setError的使用

  /** called when the activity is first created. */<br> edittext login_accountedt,login_passwordedt;<br> button login_loginbtn;<br>    @override<br>    public void oncreate(bundle savedinstancestate) {<br>        super.oncreate(savedinstancestate);<br>        setcontentview(r.layout.main);<br>        login_accountedt=(edittext)findviewbyid(r.id.login_accountedt);<br>        login_passwordedt=(edittext)findviewbyid(r.id.login_passwordedt);<br>        login_loginbtn=(button)findviewbyid(r.id.login_loginbtn);<br>        login_loginbtn.setonclicklistener(new onclicklistener() {<br>   <br>         <br>   @override<br>   public void onclick(view v) {<br>    // todo auto-generated method stub<br>    system.out.println(login_accountedt.gettext().tostring() +"    "+ login_passwordedt.gettext().tostring());<br>    if(isempty(login_accountedt) )<br>    {<br>     login_accountedt.seterror("用户名不能为空!");<br>    }else<br>    {<br>     login_accountedt.seterror(null);<br>    }<br>    if(isempty(login_passwordedt) )<br>    {<br>     login_passwordedt.seterror("密码不能为空!");<br>    }else<br>    {<br>     login_passwordedt.seterror(null);<br>    }<br>   }<br>  });<br>        <br>    }<br>    public boolean isempty(edittext... edittextes)<br> {<br>  for (edittext et : edittextes)<br>  {<br>   if (et.gettext() == null)<br>    return true;<br>   if (et.gettext().tostring().trim().equals(""))<br>    return true;<br>  }<br>  return false;<br> }<br>    <br>    <br>}

补充:软件开发 , Java ,
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