onpostexecute在doinnbackground成功完成后没有被调用

Question

我多次使用Async Task，但第一次遇到这种类型的问题。搜索SO，但找不到解决我的问题的任何有用的解决方案。

我的问题是onPostExecute没有在异步任务中调用，所有在doinbackground中的操作都已完成，但控制未达到onPostExecute ...无法理解原因。

请帮帮我。

谢谢你的时间。

代码：

public class deletedaily extends AsyncTask<Void , Void, long[]>{ 

    ProgressDialog pd; 
    long resultdelete; 
    protected void onPreExecute(){ 

     pd=new ProgressDialog(StockDetail.this); 
     if(pd!=null){ 

      pd.setMessage("Deleting data.....please wait"); 
      pd.show(); 
     } 
    } 

    protected long[] doInBackground(Void... params) { 

     // TODO Auto-generated method stub 
     try{ 

      Database.getInstance(getApplicationContext()).getWritableDatabase().beginTransaction(); 
      resultdelete = Database.getInstance(getApplicationContext()).getWritableDatabase().delete(st.tablename, st.column2 + "=? AND " + st.column3 + "=?", new String[] {getdailydate.toString(),stockname}); 
      Database.getInstance(getApplicationContext()).getWritableDatabase().setTransactionSuccessful(); 

      new popdailydata().execute(); //here calling list view to populate after deletion 
     } 
     catch(Exception dailydeleteerror){} 
     finally{ 
       Database.getInstance(getApplicationContext()).getWritableDatabase().endTransaction(); 
     } 
     return new long[] {resultdelete}; 
    } 

    protected void onPostExecute(long result){ 

     System.out.println("postexecute entered"); 
     if(pd!=null){ 

      pd.dismiss(); 
     } 

     if(result!=-1){ 

      Toast.makeText(getApplicationContext(),"Date deleted from your portfolio", Toast.LENGTH_LONG).show(); 
     } 
     else{ 

      Toast.makeText(getApplicationContext(),"Failed to delete ....try again", Toast.LENGTH_LONG).show(); 
     } 
    } 
} 

编辑---------------------------------

我从图片布顿的的onclick调用

deletedailydata.setOnClickListener(new OnClickListener() { 

       @Override 
       public void onClick(View v) { 
        // TODO Auto-generated method stub 

        new deletedaily().execute(); 
       } 
      }); 

Answer 1

应该onPostExecute(long [] result)。