Question

我目前有一个管理广播接收器的服务。可以关闭此接收器。

当收到短信时触发OnReceive。然后它将SMS上传到服务器。代码工作正常，但我从3.0上面听说网络连接需要在异步任务上运行。即使不是这种情况，我也想将上传移动到另一个线程，因此上传任务无法阻止UI线程。（我已经厌倦了将服务移动到IntentService，这会导致广播Receiver泄漏）

          SMSBR = new BroadcastReceiver(){

            @Override
            public void onReceive(Context context, Intent intent) {
                //START OF ONRECIVER************************
                Bundle extras = intent.getExtras();

                String strMessage = "";

                if ( extras != null )
                {
                    Object[] smsextras = (Object[]) extras.get( "pdus" );

                    for ( int i = 0; i < smsextras.length; i++ )
                    {
                        SmsMessage smsmsg = SmsMessage.createFromPdu((byte[])smsextras[i]);

                        String strMsgBody = smsmsg.getMessageBody().toString();
                        String strMsgSrc = smsmsg.getOriginatingAddress();

                        strMessage += "SMS from " + strMsgSrc + " : " + strMsgBody;                    

                        Log.d("Message", "is "+strMessage);
                        //***************************************************************
                        InputStream is = null;
                        try{
                            HttpClient httpclient = new DefaultHttpClient();
                            HttpPost httppost = new HttpPost("http://mayar.abertay.ac.uk/~1001077/insert.php");

                            ArrayList<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>();
                                nameValuePairs.add(new BasicNameValuePair("DeviceNumber", telephonyManager.getLine1Number().toString()));
                                nameValuePairs.add(new BasicNameValuePair("SenderNumber", strMsgSrc));
                                nameValuePairs.add(new BasicNameValuePair("Message", strMsgBody));
                                httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
                                HttpResponse response = httpclient.execute(httppost);
                                HttpEntity entity = response.getEntity();
                                is = entity.getContent();
                                Log.d("is = ", is.toString());
                                Log.d("In SMS", "Sender success");
                                  if (Looper.getMainLooper().getThread() == Thread.currentThread()) {
                                        Log.d("Message upload Running", "on UI");
                                    } else {
                                        Log.d("Message upload NOT running", "on UIx");
                                    }

                        }catch (Exception e){
                            Log.e("Log_tag", "Error in http sms " + e.toString());
                            Log.d("In SMS", "Sender NOT success");
                        }
                        //****************************************************************

                    }

                }
                //END OF ON RECEIVE****************************
            }


          };

Answer 1

让我回答你的问题而不谈论AsyncTasks：看看

BroadcastReceiver.registerReceiver（BroadcastReceiver接收器， IntentFilter过滤器，String broadcastPermission，Handler scheduler）

我发现当我检查BroadcastReceivers上的一些文档时，看起来就像你需要的那样（检查this link）。还有一个提示：将其与HandlerThread结合使用。

Android：在OnReceive方法中启动异步任务

1 个答案: