如何停止AsyncTask類中的活動

Question

我試圖把finish（）方法停下來，但是它給了我的語法錯誤。我可以停止返回stack.Thanks提前。

private class getNewMessages extends AsyncTask<ApiConnector, Long, JSONArray> { 


      @Override 
      protected JSONArray doInBackground(ApiConnector... params) { 
       try { 
        JSONArray array = params[0].getMessage(name, password); 
        // String [] array=new String[10]; 

        if (array.length() > 0) { 
         Intent nextScreen = new Intent(getApplicationContext(), bussiness.class); 
         nextScreen.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP |Intent.FLAG_ACTIVITY_NEW_TASK); 
         startActivity(nextScreen); 

        } 
       }catch (Exception e) 
       { 
        Toast.makeText(getApplicationContext(),"Wrong Credintials", Toast.LENGTH_SHORT).show(); 
       } 
       return null; 
      } 

      @Override 
      protected void onPostExecute(JSONArray result) { 


      } 


     } 

Answer 1

嘗試使用(Activity)mContext).finish();或finish();

Answer 2

改變你的代碼到你的onPostExecute回調

 @Override 
     protected void onPostExecute(JSONArray result) { 
      if (result.length() > 0) { 
        Intent nextScreen = new Intent(getApplicationContext(), bussiness.class); 
        nextScreen.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK |Intent.FLAG_ACTIVITY_NEW_TASK); 
        startActivity(nextScreen); 
       } 

     }