Question

当我在从DatePicker和TimePicker中选择的特定日期和时间设置通知时，通知会在正确的时间显示，但在我取消后，它会在一段时间后重新出现。
我尝试了setAutoCancel(true)和Notification.FLAG_AUTO_CANCEL，但似乎没有效果。

这是我设置闹钟的代码片段

 if(item.getTitle().equals("Add Reminder"))
    {
        Log.d("REMINDER", "Show Time Picker Entered from Decided Case");
        final Dialog dialog = new Dialog(this);

        dialog.setContentView(R.layout.date_time_layout);

        dialog.setTitle("Choose Date and Time");

        dialog.show();
        Button ok = (Button) dialog.findViewById(R.id.alarm_set);
        ok.setOnClickListener(new View.OnClickListener() {

            @Override
            public void onClick(View arg0) {
                // TODO Auto-generated method stub
                DatePicker dp = (DatePicker) dialog.findViewById(R.id.datePicker1);
                TimePicker tp = (TimePicker)dialog.findViewById(R.id.timePicker1);

                Calendar cal = Calendar.getInstance();       //for using this you need to import java.util.Calendar;

                // add minutes to the calendar object
                cal.set(Calendar.MONTH, dp.getMonth());
                cal.set(Calendar.YEAR, dp.getYear());               
                cal.set(Calendar.DAY_OF_MONTH, dp.getDayOfMonth());
                cal.set(Calendar.HOUR_OF_DAY, tp.getCurrentHour());
                cal.set(Calendar.MINUTE, tp.getCurrentMinute());
                //cal.add(Calendar.MINUTE, 1);
                 //cal.setTimeInMillis(System.currentTimeMillis());
                // cal.add(Calendar.SECOND, 10);
                Intent alarmintent = new Intent(getApplicationContext(), AlarmReceiver.class);


                PendingIntent sender = PendingIntent.getBroadcast(getApplicationContext(), 0,
                alarmintent,0);
                int HELLO_ID=1;
                // Get the AlarmManager service
                HELLO_ID++;
                AlarmManager am = (AlarmManager) getSystemService(ALARM_SERVICE);
                am.set(AlarmManager.RTC_WAKEUP, cal.getTimeInMillis(), sender);
                Log.d("Alarm Set","day = "+dp.getDayOfMonth()+" month = "+(dp.getMonth()+1)+" year = "+dp.getYear()+" hours "+tp.getCurrentHour()+" minutes = "+tp.getCurrentMinute());
                dialog.dismiss();

            }
        });
    }

AlarmReciever.java

public class AlarmReceiver extends BroadcastReceiver {



    @Override
public void onReceive(Context context, Intent intent) {

    // When our Alaram time is triggered , this method will be excuted (onReceive)
     // We're invoking a service in this method which shows Notification to the User
      Intent myIntent = new Intent(context, NotificationService.class);
      context.startService(myIntent);



}
};

NotificationService.java

public class NotificationService extends Service {

private NotificationManager mManager;
Notification notification;
private static int NOTIFICATION_ID = 1;

@Override
public IBinder onBind(Intent arg0) {
    // TODO Auto-generated method stub
    return null;
}

@Override
public void onCreate() {
    super.onCreate();
}

@Override
public void onStart(Intent intent, int startId) {
    super.onStart(intent, startId);
    // Getting Notification Service
    mManager = (NotificationManager) this.getApplicationContext()
            .getSystemService(
                    this.getApplicationContext().NOTIFICATION_SERVICE);
    /*
     * When the user taps the notification we have to show the Home Screen
     * of our App, this job can be done with the help of the following
     * Intent.
     */
    Intent intent1 = new Intent(this.getApplicationContext(), DecidedCase.class);
    PendingIntent pendingNotificationIntent = PendingIntent.getActivity(
            this.getApplicationContext(),NOTIFICATION_ID, intent1,
            PendingIntent.FLAG_UPDATE_CURRENT);
    //notification = new Notification(R.drawable.ic_launcher,
        //  "Trying out Alarm", System.currentTimeMillis());
    notification = new NotificationCompat.Builder(this.getApplicationContext())
                    .setContentTitle("ScheduLAWyer")
                    .setContentText("You've got a notification")
                    .setContentIntent(pendingNotificationIntent)
                    .setSmallIcon(R.drawable.ic_launcher)
                    .setAutoCancel(true)
                    .setPriority(8)
                    .setTicker("A case has to be viewed").build();
                    //.addAction(R.drawable.ic_launcher,"Launch app",pendingNotificationIntent)
                    //.addAction(R.drawable.ic_launcher, "Cancel",pendingNotificationIntent).build();

    intent1.addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP
            | Intent.FLAG_ACTIVITY_CLEAR_TOP);

    //PendingIntent pendingNotificationIntent = PendingIntent.getActivity(
        //  this.getApplicationContext(), 0, intent1,
            //PendingIntent.FLAG_UPDATE_CURRENT);



    /*notification.setLatestEventInfo(this.getApplicationContext(),
            "sudduLAWyer", "Trying out Alarm Manager",
            pendingNotificationIntent);*/
    //notification.flags = Notification.FLAG_INSISTENT;
    notification.flags |= Notification.FLAG_AUTO_CANCEL | Notification.FLAG_INSISTENT | Notification.FLAG_SHOW_LIGHTS;
    notification.defaults |= Notification.DEFAULT_SOUND | Notification.DEFAULT_VIBRATE;
    //notification.defaults |= Notification.DEFAULT_VIBRATE;
    //notification.flags |= Notification.FLAG_SHOW_LIGHTS;
    notification.ledARGB = 0xFFFFA500;
    notification.ledOnMS = 800;
    notification.ledOffMS = 1000;

    mManager.notify(NOTIFICATION_ID++, notification);
    Log.d("NOTIFICATION","Notficiation Set");
}

@Override
public void onDestroy() {
    // TODO Auto-generated method stub
    super.onDestroy();
    mManager.cancel(0);
}

}

Answer 1

可能是因为闹钟。如果您致电Notification，setAutoCancel(true)本身无法再添加一次。

你可以尝试

{p> a.cancel(sender) onReceive的{{1}}你的AlarmReceiver。您必须重新创建该发件人对象才能取消它。

Answer 2

理想情况下，您不应该使用服务来发送notification，我认为如果您编写一些Util函数并将service onStart的代码移到Util方法。

如果您的要求仅需要服务，我建议您使用IntentServive

从AlarmManager开始的通知会再次重复

2 个答案: