2016-09-13 28 views
1

這裏是我的代碼,我想從DB填單子,然後使用它,當然,但我有問題,它做asychronouz,當我試圖從這個名單中獲得價值,我得到了束縛例外,我應該如何重新調整這個方法,或者我應該如何從Mainactivity調用來解決這個問題?在如何獲得排球完成工作?

public void onResponse(JSONArray response) { //process response }

在onResponse凌空

public class VolleySingleton extends Application { 
public static final String TAG = VolleySingleton.class.getSimpleName(); 
private RequestQueue requestQueue; 
private static VolleySingleton instance; 
public static int count=0; 

@Override 
public void onCreate() { 
    super.onCreate(); 
    instance = this; 
} 

public static synchronized VolleySingleton getInstance() { 
    return instance; 
} 

public RequestQueue getRequestQueue() { 
    if (requestQueue == null) { 
     requestQueue = Volley.newRequestQueue(getApplicationContext()); 
    } 
    return requestQueue; 
} 

public <T> void addToRequestQueue(Request<T> req, String tag) { 
    req.setTag(TextUtils.isEmpty(tag) ? TAG : tag); 
    getRequestQueue().add(req); 
    count++; 
} 

public <T> void addToRequestQueue(Request<T> request) { 
    getRequestQueue().add(request); 
} 

public void cancelPendingRequests(Object tag) { 
    if (requestQueue != null) { 
     requestQueue.cancelAll(tag); 
    } 
} 

}

private static String TAG = JSonParse.class.getSimpleName(); 

public static List<Room> getRoomArray(String url, Context context) throws InterruptedException { 
    final List<Room> roomList = new ArrayList<>(); 
    final CountDownLatch countDownLatch = new CountDownLatch(1); 
    JsonArrayRequest arrayRequest = new JsonArrayRequest(url, new Response.Listener<JSONArray>() { 
     @Override 
     public void onResponse(JSONArray response) { 
      Log.d(TAG, response.toString()); 
      try { 
       Room room = null; 
       for (int i = 0; i < response.length(); i++) { 
        room = new Room(); 
        JSONObject newRoom = (JSONObject) response.get(i); 
        room.setId(newRoom.getLong("id")); 
        room.setName(newRoom.getString("name")); 
        room.setActive(newRoom.getBoolean("active")); 
        roomList.add(room); 
       } 
       Helper.initList(roomList); 
      } catch (JSONException e) { 
       e.printStackTrace(); 
      } 

     } 
    }, new Response.ErrorListener() { 

     @Override 
     public void onErrorResponse(VolleyError volleyError) { 
      volleyError.printStackTrace(); 
     } 
    }); 

    VolleySingleton.getInstance().addToRequestQueue(arrayRequest); 
    return roomList; 
} 

回答

-1

你可以處理的數據完成了工作。 您可以在此處設置回調以在班級中發送回覆。

+0

我該怎麼辦呢? –

+0

1.創建接口 「公共接口OnResponseReceived { 公共無效responseReceived(JSONArray響應); }」 2.Implement這個接口在活動 3.當調用排球方法 「getRoomArray()」 通過實例您的活動 4.Now你可以調用方法「responseReceived(jSONArray),其中」中凌空響應和傳遞數組到methos.So您將獲得該數組中的活動 – rushi

+0

是什麼downvote以上回答的原因是什麼? – rushi

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