Fragment如何接受广播

在Android开发中，我们经常需要利用Fragment来动态更新UI，我们利用Service进行联网，从网上下载下来的数据通过广播出去，再利用Receiver接受，下面是例子：

这是service的写法：

public class InternetService extends Service {@Overridepublic IBinder onBind(Intent intent) {// TODO Auto-generated method stubreturn binder;}@Overridepublic void onCreate() {lm = new LogicMethod(this);super.onCreate();}@Overridepublic void onStart(Intent intent, int startId) {if (method.equals("login")) {final String username = bundle.getString("username");final String password = bundle.getString("password");new Thread() {@Overridepublic void run() {try {String SendData = null;SendData = xmlhead + "<request><method>" + method+ "</method><username>" + username+ "</username><password>" + password+ "</password></request>";String st = nu.XHttp(SendData);if (null != st) {BroadCastMethod(st, "com.onpiece.sslogin");} else {BroadCastMethod("connection fail!","com.onpiece.sslogin");Log.i(TAG, "st is null");}} catch (Exception e) {e.printStackTrace();}}}.start();}else {}}private boolean BroadCastMethod(String st, String ReceiveAction) {Intent intentReceiver = new Intent();intentReceiver.setAction(ReceiveAction);// intentReceiver.putExtra("name", "sucess\r\n");Log.i(TAG, "st is " + st);if (null == st) {intentReceiver.putExtra("name", "");} else {intentReceiver.putExtra("name", st);}intentReceiver.putExtra("networkstat", NetworkStat);intentReceiver.putExtra("netavailablestat", NetworkAvailableStat);InternetService.this.sendBroadcast(intentReceiver);Log.i(TAG, "发送广播成功");return true;}@Overridepublic void onDestroy() {System.out.println("----onDestory-----");super.onDestroy();}}

如何在Fragment中接收呢？

public class ContactsFragment extends Fragment {@Overridepublic View onCreateView(LayoutInflater inflater, ViewGroup container,Bundle savedInstanceState) {View contactsLayout = inflater.inflate(R.layout.contacts_layout,container, false);CFcontext = this;mListView = (ListView) contactsLayout.findViewById(R.id.contact_name_listview);return contactsLayout;}private class MyReceiver extends BroadcastReceiver {@Overridepublic void onReceive(Context context, Intent intent) {Log.i(TAG, "in onReceive");String return_data = intent.getExtras().getString("name");if (return_data != null && return_data != "") {XmlParser xpm = new XmlParser();String status = xpm.XMLParseMethod(return_data, "status");if (status.equals("0")) {String username = xpm.XMLParseMethod(return_data,"username");Log.i(TAG, "username is " + username);String usersex = xpm.XMLParseMethod(return_data, "usersex");List<String> items = new ArrayList<String>();items.add(username);i++;ArrayAdapter<String> adapter = new ArrayAdapter<String>(CFcontext.getActivity(),android.R.layout.simple_list_item_1, items);mListView.setAdapter(adapter);} else if (status.equals("getcontactname")) {String outcome = xpm.XMLParseMethod(return_data, "outcome");if (outcome.equals("connection fail!")) {Log.i(TAG, "嘿嘿，联网失败");Toast.makeText(CFcontext.getActivity(), "嘿嘿，联网失败",Toast.LENGTH_SHORT).show();}}}}}@Overridepublic void onAttach(Activity activity) {Log.i(TAG, "in onAttach");/** 注册广播 */receiver = new MyReceiver();IntentFilter filter = new IntentFilter();filter.addAction("com.onpiece.ContactsFragment"); // 只有持有相同的action的接受者才能接收此广播activity.registerReceiver(receiver, filter);super.onAttach(activity);}}

不能用这种方法接收广播，如下：

// if (null == receiver) {// receiver = new MyReceiver();// }// LocalBroadcastManager broadcastManager = LocalBroadcastManager// .getInstance(getActivity());// IntentFilter filter = new IntentFilter();// // filter.addCategory(Intent.CATEGORY_DEFAULT);// filter.addAction("com.onpiece.ContactsFragment");// broadcastManager.registerReceiver(receiver, filter);

利用这种方法接收不到广播。原因现在还不知道。。。