Android AsyncTask在第二次调用时未执行 [英] Android AsyncTask not executing when called second time

问题描述

我有一个扩展AsyncTask的类

I have a class which extends AsyncTask

public class SendJSONArray2Server extends AsyncTask<String, Void, HttpResponse>

该类将JSONArray发送到服务器，并以JSONArray形式接收响应.我实例化了该类，如下所示:

the class send a JSONArray to the server and receives response as JSONArray. I have instantiated the class as follows

private SendJSONArray2Server sendJSON;
String[] params = { "http://10.0.2.2:8084/xyz/abc",jsonArray.toString() };
sendJSON.execute(params);

在onPostExecute中，我处理用户响应

In onPostExecute I process the user response

@Override
protected void onPostExecute(HttpResponse response)

AsyncTask像魅力一样首次执行，我从服务器收到响应，但是当我第二次尝试将JSONArray发送到服务器时，AsyncTask无法执行.

AsyncTask is executed first time like charm and I am receiving the response from the Server but when I try to send JSONArray to server for the second time AsyncTask does not execute.

我在logcat中没有任何异常或错误.

I am not getting any exceptions or errors in logcat.

推荐答案

为异步任务创建一个单独的实例，然后尝试像这样执行.

Create a seperate instance of your async task and try to execute like this..

 new MyAsyncTask().execute(params);

因为 Asynctask只能执行一次(如果尝试第二次执行，则将引发异常)

这篇关于Android AsyncTask在第二次调用时未执行的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！