android 如何在对话框中获取edittext中的数据

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//得到自定义对话框
    final View DialogView = a .inflate ( R.layout.loand, null);  
//创建对话框
    AlertDialog dlg = new AlertDialog.Builder(loand.this)
    .setTitle("登录框")
    .setView(DialogView)//设置自定义对话框的样式
    setPositiveButton("登陆", //设置"确定"按钮
    new DialogInterface.OnClickListener() //设置事件监听
    {
        public void onClick(DialogInterface dialog, int whichButton)
        {
            editText1 =(EditText) DialogView.findViewById(R.id.editText1);
            editText2 =(EditText) DialogView.findViewById(R.id.editText2);
            String id = editText1.getText().toString();

            String password = editText2.getText().toString();
            //输入完成后，点击“确定”开始登陆
            c_log judge = new c_log();
            boolean b_judge = judge.aa(id,password);
            if(b_judge){
                bar();
            }else{
                //加东西    
                DisplayToast("NO");
            }     
        }
    });