在Doinbackground将数据从服务器获取到本地之前，将执行OnPostExecute方法 [英] OnPostExecute Method is Executing before Doinbackground Fetching Data from Server To Local

问题描述

1. 在我的Android异步任务类中，我正在从Azure服务器中的数据提取到 DoinBackground 方法

但是在完成 DoinBackground 方法之前，它正在执行 OnPostExecute 方法

But before finishing the DoinBackground method, it's executing the OnPostExecute method

内部 OnPostExecute 方法中，我禁用了 ProgressBar

Inside OnPostExecute method I am disabling the ProgressBar

帮我解决这个问题.

我的代码:

public class AsyncTaskSync_UserGroupMappingTableClass extends AsyncTask<String, String, Boolean>
{
      {

       @Override
       protected void onPreExecute()
       {
           super.onPreExecute();
       }

       @Override
       protected Boolean doInBackground(String... values)
       {
           try
           {
                mToDoTable_Form5_SPINNER_DataTable456_ServerAzure
                                .execute(new TableQueryCallback<FormsObjectTable2TaskHopsSPinnerValues>() {
                                    public void onCompleted(List<FormsObjectTable2TaskHopsSPinnerValues> result, int count, Exception exception, ServiceFilterResponse response) {
                       if (exception == null) {
                          if (!result.equals("")) {
                              for (int i = 0; i < result.size(); i++) {
                                  /*Table 5 SPinner Data Table*/
                                  IdValue_TableValue5 = result.get(i).getId();
                                  ImeiStringval1_TableValue5 = result.get(i).getImeINumberValOne();
                                  Spinner_IDStringVal1_TableValue5 = result.get(i).getSpinner_id_StringOne();
                                  Spinner_data_StringVal1_TableValue5 = result.get(i).getSPinner_data_Value_StringOne();
                                  Log.i("From SErver DataBase", " Spinner : " + ImeiStringval1_TableValue5 + " : " + Spinner_IDStringVal1_TableValue5 + " : " + Spinner_data_StringVal1_TableValue5);
                                  Asynxfor_DATAinsert5_SpinnerTable(IdValue_TableValue5, ImeiStringval1_TableValue5, Spinner_IDStringVal1_TableValue5, Spinner_data_StringVal1_TableValue5);
                              }
                          } else {
                              Log.i("Data Retrieval Not Found", "No Data In Server For Specific IMEI......!");
                          }
                     } else {
                          Log.i("SOme Exception", "Data Retrieval From Server FORMTABLE1 Data......!");
                          exception.printStackTrace();
                     }
                 }
           });
        }
        catch (Exception e)
        {
            e.printStackTrace();;
            Log.i("Data Retrieval", "Exception Occur......!");
        }

        // PrgDialog.dismiss();
        return null;
    }

    @Override
    protected void onPostExecute(Boolean results)
    {
        try
        {
            Log.i("DONE ", "Data Sync Done Successfully 5 Spinner Values");
            PrgDialog.dismiss();
        }
        catch (Exception e)
        {
            e.printStackTrace();
            Log.i("Exception ", "Post Excecute");
        }
    }
};

编辑1

我的Logcat消息:

My Logcat message:

// From OnPostExecute first Executing also disabling the Progressbar
DONE: Data Sync Done Successfully Form Master 1 

// From Doinbackground
From Server database

推荐答案

您在 doInBackground 内部执行的请求是异步进行的，这意味着 doInBackground 已经在您执行之前获取 TableQueryCallback .换句话说，这是一个正在启动另一个线程的线程.我认为您不需要将其包围在 AsyncTask 中，您可以使用处理程序或接口在 TableQueryCallback.onCompleted()上处理响应.

The requests you are doing inside doInBackground are made asynchronusly that's means that doInBackground is already execute before you get the TableQueryCallback. In other words It's a thread which is launching another thread. I think you do not need to surround it in an AsyncTask, you could handle your respond on TableQueryCallback.onCompleted() with a Handler or an Interface.

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