alarm

need programs that illustrate use of settimer and alarm functions in GNU C

一世执手 提交于 2019-11-28 01:50:29
问题 Can anyone illustrate the use of settimer or alarm function in gnu C , with some program examples ,please ? I have a program that continuously processes some data , and i need to set a timer / alarm that goes off every t seconds , in response to which , i need to store the processed data into a file. This file writing has to be asynchronous < i.e. the data processing and file writing must not wait for each other > . I went through the GNU C Library pages , but i couldn't understand much..

How to set an Alarm in iOS?

久未见 提交于 2019-11-27 22:31:12
I know this question has asked many times on StackOverflow but i couldn't able to set alarm in my app because i am very new to iOS? I am following this tutorial to set an alarm: Setting a reminder using UILocalNotification in iOS. However, it doesn't seems to be working for me. I am in need to set alarm daily lets say 5.00 PM daily. I can't use date picker for choosing the time. George Sachpatzidis First on your xib , (or code) set the date picker mode: Time (Default is date & time) The system assumes that the firedate is the current date, and the time is the time the user have chosen. This is

Send notification once in a week

笑着哭i 提交于 2019-11-27 20:54:57
I want to notify the user about answer the weekly questions.I need to send the notification to the user even my app is not running.The notification will send once in a week. When user clicks the notification my app will gets open. I tried this via Timer and TimerTask().This notifies the user when my app is running.How can I send the notification to the user while app is not running. Anyone can help me out? The following code uses Alarmmanager with BroadcastReceiver which will help you out achieving your need. In your activity: Intent intent = new Intent(MainActivity.this, Receiver.class);

How to schedule my android app to do something every hour

一世执手 提交于 2019-11-27 16:17:30
问题 I want my app to access database every hour and read next record from the table then update desctop widget and send notification. I know that there is AlarmManager which I can use to register my Intents but they are deleted when the phone is turned off or rebooted. Is there any other android class/service that I would update my application continuously even when I reboot my phone? Thanks, 回答1: take a look at the demo applications provided with android sdk http://developer.android.com/samples

How can I terminate a system command with alarm in Perl?

丶灬走出姿态 提交于 2019-11-27 14:29:24
I am running the below code snippet on Windows. The server starts listening continuously after reading from client. I want to terminate this command after a time period. If I use alarm() function call within main.pl , then it terminates the whole Perl program (here main.pl ), so I called this system command by placing it in a separate Perl file and calling this Perl file ( alarm.pl ) in the original Perl File using the system command. But in this way I was unable to take the output of this system() call neither in the original Perl File nor in called one Perl File. Could anybody please let me

Android AlarmManager problem with setting & resetting an alarm

走远了吗. 提交于 2019-11-27 13:46:23
I use an Alarm to fetch data from server. I like to give user the option to start and stop the alarm. This means I have to check and see if alarm is already set. I found some code that tells me if the alarm is already set: Intent I = new Intent(getApplicationContext(),AlarmReceiver.class); PendingIntent P = PendingIntent.getBroadcast(getApplicationContext(), 0, I, PendingIntent.FLAG_NO_CREATE); found = (P!=null); if the Alarm is already set I cancel it but if it is not set then I set it (like a toggle) Problem is this works only once. The first time the above code to check existing alarms will

How to set an alarm to fire properly at fixed time?

我只是一个虾纸丫 提交于 2019-11-27 12:34:46
问题 I have this code Calendar c = new GregorianCalendar(); c.add(Calendar.DAY_OF_YEAR, 1); c.set(Calendar.HOUR_OF_DAY, 23); c.set(Calendar.MINUTE, 22); c.set(Calendar.SECOND, 0); c.set(Calendar.MILLISECOND, 0); // We want the alarm to go off 30 seconds from now. long firstTime = SystemClock.elapsedRealtime(); firstTime += 30*1000; long a=c.getTimeInMillis(); // Schedule the alarm! AlarmManager am = (AlarmManager)ctx.getSystemService(Context.ALARM_SERVICE); am.setRepeating(AlarmManager.ELAPSED

How do I pass data from a BroadcastReceiver through to an Activity being started?

独自空忆成欢 提交于 2019-11-27 12:31:07
I've got an Android application which needs to be woken up sporadically throughout the day. To do this, I'm using the AlarmManager to set up a PendingIntent and have this trigger a BroadcastReceiver. This BroadcastReceiver then starts an Activity to bring the UI to the foreground. All of the above seems to work, in that the Activity launches itself correctly; but I'd like the BroadcastReceiver to notify the Activity that it was started by the alarm (as opposed to being started by the user). To do this I'm trying, from the onReceive() method of the BroadcastReceiver to set a variable in the

How to repeat notification daily on specific time in android through background service

本小妞迷上赌 提交于 2019-11-27 11:15:02
Hi I am working on application where I have set the notification on user entered date and time through background service. Now I want to set notification/alarm daily at 6 pm to ask user does he want to add another entry? How can I achieve this? Should I use the same background service or Broadcast receiver? Please give me better solution for that and tutorial will be great idea. Thanks in advance. Mr. N.V.Rao First set the Alarm Manager as below Calendar calendar = Calendar.getInstance(); calendar.set(Calendar.HOUR_OF_DAY, 18); calendar.set(Calendar.MINUTE, 30); calendar.set(Calendar.SECOND, 0

iOs 8, start playing sound when in the background, alarm clock app

白昼怎懂夜的黑 提交于 2019-11-27 10:02:56
问题 I know there are many questions on SOF, but this is the "newest" one. The thing is, I'm trying to create and alarm app, and I know for a fact that there are alarm apps out there that works perfectly ( somehow ), even if the app is not running and is in the background. My question is: how do you start playing sound after your app is already in the background ?? UILocalNotification is great, but you'll only get application:(_:didReceiveLocalNotification:) after the user has already clicked on