我想在broadcastReceiver中检查设备是否已连接。下面是我的代码:publicbooleanisOnline(Contextcontext){NetworkInfoinfo=(NetworkInfo)((ConnectivityManager)context.getSystemService(Context.CONNECTIVITY_SERVICE)).getActiveNetworkInfo();if(info==null||!info.isConnected()){Log.e("UpdateDataReceiver","info:"+info);returnfalse;