无法同步调用notify()

时间:2013-04-05 08:46:16

标签: android multithreading

原谅我,但我无法接到NotificationBuilder的notify()方法的电话。我有这段代码:

timer.scheduleAtFixedRate(
              new TimerTask() {
                @Override
                public void run() {
                    synchronized (this) {
            Builder notif = new NotificationCompat.Builder(c);
        notif.setContentIntent(contIntent)
                .setWhen(System.currentTimeMillis())
                .setTicker("Notification ticker")
                .setSmallIcon(R.drawable.ic_launcher)
                .setContentTitle("Vinceri")
                .setContentText("Ha recibido una oferta de trabajo")
                .setAutoCancel(true);

        notif.notify();
        }
}
}

无论我把同步块放在哪里,我都会得到同样的例外:

04-05 10:42:55.116: E/AndroidRuntime(18244): FATAL EXCEPTION: Timer-0
04-05 10:42:55.116: E/AndroidRuntime(18244): java.lang.IllegalMonitorStateException: object not locked by thread before notifyAll()
04-05 10:42:55.116: E/AndroidRuntime(18244):    at java.lang.Object.notifyAll(Native Method)
04-05 10:42:55.116: E/AndroidRuntime(18244):    at com.publidirecta.vinceriazafata.NotificationService$1.run(NotificationService.java:126)
04-05 10:42:55.116: E/AndroidRuntime(18244):    at java.util.Timer$TimerImpl.run(Timer.java:284)

这可能是一个noob问题,但是......我必须做些什么来不接受这个例外?谢谢。

1 个答案:

答案 0 :(得分:3)

假设您正在尝试向android通知抽屉添加通知..您需要执行以下操作:

Builder notif = new NotificationCompat.Builder(c);
        notif.setContentIntent(contIntent)
                .setWhen(System.currentTimeMillis())
                .setTicker("Notification ticker")
                .setSmallIcon(R.drawable.ic_launcher)
                .setContentTitle("Vinceri")
                .setContentText("Ha recibido una oferta de trabajo")
                .setAutoCancel(true);
      //create notification from builder
      Notification notification = notif.build();
      //get instance of NotificationManager
      NotificationManager notificationmanager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
      //call notify method of NotificationManager to add this notification to android notification drawer..
      notificationmanager.notify(0, notification);