android 怎么获取alertdailog自定义布局里的控件

LayoutInflater inflater = getLayoutInflater();
final View layout = inflater.inflate(R.layout.config,
(ViewGroup) findViewById(R.id.tableView));
new AlertDialog.Builder(v.getContext()).setTitle("设置选项").setView(layout)
.setPositiveButton("设置", new DialogInterface.OnClickListener() {

public void onClick(DialogInterface dialog, int which){

EditText add=(EditText)layout.findViewById(R.id.address_c);

EditText po=(EditText)layout.findViewById(R.id.port_c);

if(add!=null&&po!=null)

{

if(add.getText().toString()!=""&&po.getText().toString()!="")

insertConfigData(add.getText().toString(),po.getText().toString());

}

//String address=add.getText().toString();

//String port=po.getText().toString();

//将获取的值组装成一条记录插入到数据库中

/*

emptyTable();

insertConfigData("122.205.129.39","8080");

*/

return;

}})
.setNegativeButton("取消", null).show();

一样的获取啊，只是把id封装一下，传递过去就行了。