android服务器异步回调,android–如何从异步任务返回结果

如何从异步调用onPostExecute返回结果字符串&＃xff1f;我怎么称呼它&＃xff1f;我似乎无法让我的代码能够做到这一点.线程应该没有问题,因为我有一个冻结UI的对话框,直到完成工作.

我的典型asyncTask代码如下

class GetDataFromServer extends AsyncTaskPHP";

public myAsyncMethos(String dialogMessage,Context con)

{

this.qDialog &＃61; new ProgressDialog(con);

this.dialogString &＃61; dialogMessage;

this.context &＃61; con;

}

/**

* Before starting background thread Show Progress Dialog

* */

&＃64;Override

protected void onPreExecute()

{

super.onPreExecute();

qDialog &＃61; new ProgressDialog(this.context);

qDialog.setMessage(this.dialogString);

qDialog.setIndeterminate(false);

qDialog.setCancelable(false);

qDialog.show();

}

&＃64;Override

protected JSONObject doInBackground(String... args)

{

//MAKE SERVER CALL and cast to JSONOBject

return jsonNewUser;

}

public void onPostExecute(JSONObject jsonString)

{

// dismiss the dialog after getting response

qDialog.dismiss();

//I WANT TO RETURN A STRING HERE BUT KEEP GETTING Syntax ERRORS BEFORE RUNTIME

}

}