如何刷新BroadcastReceiver中的片段ListView？

Question

当数据收到时，有什么办法刷新BroadcastReceiver中的片段ListView？

这是在碎片ListView的刷新方法扩展ListFragment：

public void refreshTicketList() { 

     list = readData.getAllRows(); 
     Collections.reverse(list); 
     if (list.isEmpty()) { 
      Toast.makeText(getContext(), "No data, Please Swipe Down to get data.", Toast.LENGTH_LONG).show(); 
     } else { 
      adapter = new ListAdapter(getContext(), list); 
      setListAdapter(adapter); 
     } 
    } 

如何使用在广播接收器这种方法吗？

Answer 1

我发现当BroadcastReceiver从服务器接收数据时，我们该如何刷新ListView。

当广播接收器获取的数据，我们必须将消息发送到活动或片段是这样的：

BroadcastReceiver broadcastReceiver = new BroadcastReceiver() { 
      @Override 
      public void onReceive(Context context, Intent intent) { 
       //Refresh code here 
      } 
     }; 

@Override 
    public void onResume() { 
     super.onResume();   
     getActivity().registerReceiver(broadcastReceiver, new IntentFilter("REFRESH")); 
    } 


    @Override 
    public void onDestroy() { 
     super.onDestroy(); 
     getActivity().unregisterReceiver(broadcastReceiver); 
    } 

这一切;）