在新類中實現AsyncTask

我試圖使用asynctask上傳實體，如Google的教程Mobile Assistant https://cloud.google.com/developers/articles/how-to-build-mobile-app-with-app-engine-backend-tutorial/。當我將下面的代碼放在MainActivity中時，它可以工作，但如果我嘗試在另一個活動（在本例中爲MakeDesire.java）中使用代碼，則它不起作用。問題是在新類中實現AsyncTask

1）new DesireTask（）。execute（）.......... DesireTask被加下劃線並表示創建新的類。 2）Eclipse不允許私人類DesireTask（）.....當單擊下劃線「本地類DesireTask的非法修飾符;只允許抽象或最終」但這在MainActivity中起作用。

任何幫助appriciated。提前致謝。

package com.google.samplesolutions.mobileassistant; 

import java.io.IOException; 



import com.google.api.client.extensions.android.http.AndroidHttp; 
import com.google.api.client.json.jackson2.JacksonFactory; 
import com.google.samplesolutions.mobileassistant.desireendpoint.Desireendpoint; 
import com.google.samplesolutions.mobileassistant.desireendpoint.model.Desire; 


public class MakeDesire extends Activity{ 

private OnTouchListener sendexit = null; 

@Override 
protected void onCreate(Bundle savedInstanceState){ 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.sss); 

    Button button1 = (Button) findViewById(R.id.button1); 
    EditText kategori = (EditText) findViewById(R.id.editText1); 
    final String ktgri = kategori.getText().toString(); 
    EditText mal =(EditText) findViewById(R.id.editText2); 
    final String malstring = mal.getText().toString(); 
    final CheckBox alrm = (CheckBox) findViewById(R.id.checkBox1); 

    sendexit = new OnTouchListener(){ 
     @Override 
     public boolean onTouch(View v, MotionEvent event){ 
      if(event.getAction()== MotionEvent.ACTION_UP){ 
       new DesireTask().execute(); 
       finish(); 
       return true; 
      } 
      return false; 
     } 
}; 
button1.setOnTouchListener(sendexit); 

class DesireTask extends AsyncTask<Void, Void, Void> { 

    @Override 
    protected Void doInBackground(Void... arg0) { 
     Desire desire = new com.google.samplesolutions.mobileassistant.desireendpoint.model.Desire(); 

     desire.setCtgry(ktgri); 
     desire.setGood(malstring); 
     desire.setAlarm(alrm.isChecked()); 

     Desireendpoint.Builder builder = new Desireendpoint.Builder(AndroidHttp.newCompatibleTransport(), new JacksonFactory(), null); 
     builder = CloudEndpointUtils.updateBuilder(builder); 

     Desireendpoint endpoint = builder.build(); 

     try { 
       endpoint.insertDesire(desire).execute(); 
       } catch (IOException e) { 
       // TODO Auto-generated catch block 
       e.printStackTrace(); 
       } 

     return null; 
    } 
} 
} 
}

來源

2014-10-27 savante

看起來要粘貼內onCreate方法內部類。嘗試切割任務聲明和正文並粘貼到onCreate之外。

來源

2014-10-28 00:15:10 akodiakson

在新類中實現AsyncTask

回答

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