Android编程实现google消息通知功能示例

本文实例讲述了android编程实现google消息通知功能。分享给大家供大家参考，具体如下：

1. 定义一个派生于wakefulbroadcastreceiver的类

public class gcmbroadcastreceiver extends wakefulbroadcastreceiver {
  private static final string tag = "gcmbroadcastreceiver";
  @override
  public void onreceive(context context, intent intent) {
    log.v(tag, "onreceive start");
    componentname comp = new componentname(context.getpackagename(),
        gcmintentservice.class.getname());
    startwakefulservice(context, (intent.setcomponent(comp)));
    setresultcode(activity.result_ok);
    log.v(tag, "onreceive end");
  }
}

2. 用于处理broadcast消息的类

public class gcmintentservice extends intentservice {
  private static final string tag = "gcmintentservice";
  public static final int notification_id = 1;
  private notificationmanager mnotificationmanager;
  notificationcompat.builder builder;
  private intent mintent;
  public gcmintentservice() {
    super("gcmintentservice");
    log.v(tag, "gcmintentservice start");
    log.v(tag, "gcmintentservice end");
  }
  @override
  protected void onhandleintent(intent intent) {
    log.v(tag, "onhandleintent start");
    bundle extras = intent.getextras();
    googlecloudmessaging gcm = googlecloudmessaging.getinstance(this);
    string messagetype = gcm.getmessagetype(intent);
    if (!extras.isempty()) {
      if (googlecloudmessaging.message_type_send_error
          .equals(messagetype)) {
        sendnotification(extras.getstring("from"), "send error",
            extras.tostring(), "", null, null);
      } else if (googlecloudmessaging.message_type_deleted
          .equals(messagetype)) {
        sendnotification(extras.getstring("from"),
            "deleted messages on server", extras.tostring(), "",
            null, null);
      } else if (googlecloudmessaging.message_type_message
          .equals(messagetype)) {
        log.v(tag, "bundle size = " + extras.size());
        boolean sendreply = false;
        string msgid = null;
        for (string key : extras.keyset()) {
          if ("gcm.notification.title".equals(key)
              || "gcm.notification.body".equals(key)
              || "gcm.notification.click_action".equals(key)
              || "gcm.notification.ordernumber".equals(key)) {
            log.v(tag,
                "key=" + key + " data=" + extras.getstring(key));
          } else if ("gcm.notification.messageid".equals(key)) {
            sendreply = true;
            msgid = extras.getstring(key);
            log.v(tag, "key=" + key + " data=" + msgid);
          } else {
            log.v(tag, "key=" + key);
          }
        }
        sendnotification(extras.getstring("from"),
            extras.getstring("gcm.notification.title"),
            extras.getstring("gcm.notification.body"),
            extras.getstring("gcm.notification.click_action"),
            extras.getstring("gcm.notification.ordernumber"), msgid);
        log.i(tag, "received: " + extras.tostring());
        mintent = intent;
        if (sendreply) {
          new sendreceivedreply().execute(msgid);
        } else {
          gcmbroadcastreceiver.completewakefulintent(intent);
        }
      }
    } else {
      gcmbroadcastreceiver.completewakefulintent(intent);
    }
    log.v(tag, "onhandleintent end");
  }
  private void sendnotification(string from, string title, string msg,
      string action, string ordernumber, string msgid) {
    log.v(tag, "sendnotification start");
    log.v(tag, "from=" + from + " title=" + title + " msg=" + msg
        + " action=" + action + " ordernumber=" + ordernumber);
    mnotificationmanager = (notificationmanager) this
        .getsystemservice(context.notification_service);
    notificationcompat.builder mbuilder = new notificationcompat.builder(
        this).setsmallicon(r.drawable.ic_launcher)
        .setcontenttitle(title)
        .setstyle(new notificationcompat.bigtextstyle().bigtext(msg))
        .setcontenttext(msg)
        .setsound(settings.system.default_notification_uri);
    pendingintent contentintent = pendingintent.getactivity(this, 0,
        new intent(this, activitysplash.class), 0);
    mbuilder.setcontentintent(contentintent);
    if (ordernumber == null) {
      mnotificationmanager.notify(notification_id, mbuilder.build());
    } else {
      int n = ordernumber.charat(0);
      string s = string.format(locale.english, "%d%s", n,
          ordernumber.substring(1));
      n = integer.valueof(s);
      log.v(tag, "notif id=" + n);
      mnotificationmanager.notify(n, mbuilder.build());
    }
    gregoriancalendar c = new gregoriancalendar();
    utildb.msgadd(c.gettimeinmillis(), title, msg, msgid);
    intent intent = new intent(utilconst.broadcast_message);
    localbroadcastmanager.getinstance(this).sendbroadcast(intent);
    log.v(tag, "sendnotification end");
  }
  /*************************************************************/
  /************************** asynctask ************************/
  /*************************************************************/
  private class sendreceivedreply extends asynctask<string, void, void> {
    @override
    protected void doinbackground(string... params) {
      if (params[0] != null) {
        arraylist<namevaluepair> nvp = new arraylist<namevaluepair>();
        nvp.add(new basicnamevaluepair("messageid", params[0]));
        utilapp.dohttppost(getstring(r.string.url_base)
            + getstring(r.string.url_msg_send_received), nvp, null);
      }
      return null;
    }
    @override
    protected void onpostexecute(void result) {
      gcmbroadcastreceiver.completewakefulintent(mintent);
    }
  }
}

服务器端（c#）：

public class googlenotificationrequestobj
{
  public ilist<string> registration_ids { get; set; }
  public dictionary<string, string> notification { get; set; }
}
private static ilog _log = logmanager.getlogger(typeof(googlenotification));
public static string callgoogleapi(string receiverlist, string title, string message, string messageid = "-1")
{
  string result = "";
  string applicationid = configurationmanager.appsettings["gcmauthkey"];
  webrequest wrequest;
  wrequest = webrequest.create("https://gcm-http.googleapis.com/gcm/send");
  wrequest.method = "post";
  wrequest.contenttype = " application/json;charset=utf-8";
  wrequest.headers.add(string.format("authorization: key={0}", applicationid));
  string postdata;
  var obj = new googlenotificationrequestobj()
  {
    registration_ids = new list<string>() { receiverlist },
    notification = new dictionary<string, string>
    {
      {"body", message},
      {"title", title}
    }
  };
  if (messageid != "-1")
  {
    obj.notification.add("messageid", messageid);
  }
  postdata = jsonconvert.serializeobject(obj);
  _log.info(postdata);
  byte[] bytes = encoding.utf8.getbytes(postdata);
  wrequest.contentlength = bytes.length;
  stream stream = wrequest.getrequeststream();
  stream.write(bytes, 0, bytes.length);
  stream.close();
  webresponse wresponse = wrequest.getresponse();
  stream = wresponse.getresponsestream();
  streamreader reader = new streamreader(stream);
  string response = reader.readtoend();
  httpwebresponse httpresponse = (httpwebresponse)wresponse;
  string status = httpresponse.statuscode.tostring();
  reader.close();
  stream.close();
  wresponse.close();
  if (status != "ok")
  {
    result = string.format("{0} {1}", httpresponse.statuscode, httpresponse.statusdescription);
  }
  return result;
}

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希望本文所述对大家android程序设计有所帮助。