Androidpn学习与使用4

notificationReceiver = new NotificationReceiver();

先来看看这个。

这个NotificationReceiver是继承BroadcastReceiver这个类的，这个类还不太了解，去网上搜搜。

http://yangguangfu.iteye.com/blog/1063732这个文章不错

这个是一个接收intent,然后做一些处理工作的类。所谓处理工作，就是一个广播。

重写onReceive方法，定义收到intent之后干嘛：

 @Override
    public void onReceive(Context context, Intent intent) {
        Log.d(LOGTAG, "NotificationReceiver.onReceive()...");//先声明，准备好接收了。。。
        String action = intent.getAction();//得到action
        Log.d(LOGTAG, "action=" + action);//就是那个service

        if (Constants.ACTION_SHOW_NOTIFICATION.equals(action)) {
            String notificationId = intent                  //首先读出各种参数
                    .getStringExtra(Constants.NOTIFICATION_ID);
            String notificationApiKey = intent
                    .getStringExtra(Constants.NOTIFICATION_API_KEY);
            String notificationTitle = intent
                    .getStringExtra(Constants.NOTIFICATION_TITLE);
            String notificationMessage = intent
                    .getStringExtra(Constants.NOTIFICATION_MESSAGE);
            String notificationUri = intent
                    .getStringExtra(Constants.NOTIFICATION_URI);

            Log.d(LOGTAG, "notificationId=" + notificationId);
            Log.d(LOGTAG, "notificationApiKey=" + notificationApiKey);
            Log.d(LOGTAG, "notificationTitle=" + notificationTitle);
            Log.d(LOGTAG, "notificationMessage=" + notificationMessage);
            Log.d(LOGTAG, "notificationUri=" + notificationUri);
            
            Notifier notifier = new Notifier(context);
            notifier.notify(notificationId, notificationApiKey,
                    notificationTitle, notificationMessage, notificationUri);
        }

    }

红色字体是重点，下面看看Notifier类的方法。

 public Notifier(Context context) {
        this.context = context;
        this.sharedPrefs = context.getSharedPreferences(
                Constants.SHARED_PREFERENCE_NAME, Context.MODE_PRIVATE);
        this.notificationManager = (NotificationManager) context
                .getSystemService(Context.NOTIFICATION_SERVICE);
    }

这里主要是初始化notifier,然后准备好notificationManager来显示推送信息。

notify方法：

  public void notify(String notificationId, String apiKey, String title,
            String message, String uri) {
        Log.d(LOGTAG, "notify()...");//通知，要开始显示通知了

        Log.d(LOGTAG, "notificationId=" + notificationId);
        Log.d(LOGTAG, "notificationApiKey=" + apiKey);
        Log.d(LOGTAG, "notificationTitle=" + title);
        Log.d(LOGTAG, "notificationMessage=" + message);
        Log.d(LOGTAG, "notificationUri=" + uri);

        if (isNotificationEnabled()) {
            // Show the toast
            if (isNotificationToastEnabled()) {
                Toast.makeText(context, message, Toast.LENGTH_LONG).show();
            }

            // Notification
            Notification notification = new Notification();
            notification.icon = getNotificationIcon();
            notification.defaults = Notification.DEFAULT_LIGHTS;
            if (isNotificationSoundEnabled()) {
                notification.defaults |= Notification.DEFAULT_SOUND;
            }
            if (isNotificationVibrateEnabled()) {
                notification.defaults |= Notification.DEFAULT_VIBRATE;
            }
            notification.flags |= Notification.FLAG_AUTO_CANCEL;
            notification.when = System.currentTimeMillis();
            notification.tickerText = message;

         
            Intent intent = new Intent(context,NotificationDetailsActivity.class);//跳转到这个界面
            
            intent.putExtra(Constants.NOTIFICATION_ID, notificationId);
            intent.putExtra(Constants.NOTIFICATION_API_KEY, apiKey);
            intent.putExtra(Constants.NOTIFICATION_TITLE, title);
            intent.putExtra(Constants.NOTIFICATION_MESSAGE, message);
            intent.putExtra(Constants.NOTIFICATION_URI, uri);
            intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
            intent.setFlags(Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS);
            intent.setFlags(Intent.FLAG_ACTIVITY_NO_HISTORY);
            intent.setFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP);
            intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);

            PendingIntent contentIntent = PendingIntent.getActivity(context, 0,
                    intent, PendingIntent.FLAG_UPDATE_CURRENT);

            notification.setLatestEventInfo(context, title, message,
                    contentIntent);
            notificationManager.notify(random.nextInt(), notification);//显示推送信息

        } else {
            Log.w(LOGTAG, "Notificaitons disabled.");
        }
    }

好了，其实就是准备好接受推送消息并显示了。