Android :: Using Alarm Manager To Start A Service At Specific Time
Jun 16, 2010
I have searched a lot of places but couldnt find a clean sequential explanation of how to start a service (or if thats not possible then an activity) at a specific time daily using the AlarmManager??I want to register several such alarms and triggering them should result in a service to be started. I'll be having a small piece of code in the service which can then execute and i can finish the service for good. Code...
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Apr 17, 2010
I am making a app similar to a Alarm Clock as the first exercise. I would like to let my app start up itself in the specified time,even it has not been actived in the background. Just like a Alarm Clock.
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Nov 17, 2010
I am building an application in which i need to start a service when the time is 7pm.
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Nov 10, 2012
I need a alarm app which can show the time remainig till the set alarm buzz off.
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Sep 8, 2009
How can I probe for whether a specific alarm has been set? I set the alarm as illustrated below, but how can I ask the OS whether or not the below code has been called? The point is not to overwrite an existing alarm with a new one.
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Aug 25, 2009
at the moment I am thinking about a new app and need some information to decide whether to develop on Android or an alternative OS. I am particularly interested in "time to first screen", "boot-up time", "time to first Audio" and "app-start" (can be any from the android market or even one of the pre-installed ones) time? Does anyone know a source or perhaps measured those numbers?
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Aug 20, 2009
I am getting following message when i try to launch service.Also is there any specific path on file system where we need to place the .apk file which contains my serivce component only.
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Mar 4, 2010
Can someone get me started on how to set a repeating alarm so that it fires at a specific time on a specific day of the week. For example, I would like an alarm to trigger an intent every Monday at 8am.
Looks like a lot of apps do this (e.g., Locale, Alarm Clock, etc.)
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Sep 7, 2010
How can we pass the value to receiver...i am using alarm manager...
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Feb 11, 2010
Please point me at the best call manager, whitelist, firewall app that will let me add a specific number and then send them to voicemail.
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Aug 5, 2010
I'm writing an android application that depends on network activity and the alarm manager sometimes waking the phone up from a sleeping state. My question is how can I reliably test this on device? Ideally, how can I force the phone into a full-on sleeping state. Failing that, how can I know for sure when the phone has fully gone to sleep? How do you test your Alarm Manager / Wake Lock / Sleep handling code?
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May 25, 2010
I have an Android Service. When a phone boots up, a broadcast receiver receives a notification and it schedules the service to run repeatedly at a gap of X minutes. Henceforth After every X minutes another broadcast receiver gets those notifications and kicks the service off, which does it's job and quits. So far so good. Now I want those X minutes to be configurable. I have a perf.xml similar to what is given at the link below. This XML captures all my preferences along with that of service timer. http://android-journey.blogspot.com/2010/01/for-almost-any-application-we-need-to.html Now when user changes preferences; how can I reschedule the alarm? Is there a way I can set a listener on preferences change? I have used only XML files to speficy preferences screen. Code...
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Aug 16, 2010
In my application i have created pending intent which calls another activity (after 20mins of alarm off) with the help of alarm manger. It should happen each time for each new pending intent or when I call that activity. But when i create one pending intent and after few mins again create new pending intent ,then the last one overlap the other previous pending intents and start specified activity only for ones for the last pending intent.I want that each time i create any pending intent it should start specified activity after 20 mins of it's alarm off time.How it can be done ?
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May 15, 2010
I have two BroadcastReceiver registered. When the app is closed they both fire at the appropriate times and do the appropriate things. If the app is closed then killed (say with an AppKiller), the receivers never receive their broadcasts, and nothing happens. Presumably the same thing happens if the parent app is killed due to low memory, so how do I ensure those broadcasts are fired/received. The API states that even if the app is killed it should fire, does anyone else have experience with this situation? If it helps my manifest is:
<!-- receivers for AlarmManager -->
<receiver android:exported="true" android:label="Shift roster updating calendar."
android:name="com.skooter.shiftroster.backend.service.UpdateCalendar" >
</receiver> <receiver android:exported="true" android:label="Shift roster checking alarm."
android:name="com.skooter.shiftroster.backend.service.SetWakeup" >
</receiver>
and nothing esoteric is going on in the AlarmManager/BroadcastReceivers
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Oct 19, 2010
I would like to show an alert dialog that shows a counter(timer of time) and after 10 seconds will automatically disappear. Code...
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May 28, 2009
Do we hear a ringing sound when the alarm manager sets off an alarm. I know its start a intent and that broadcasts to the receiver.. but does there occur a ringing or something similar sound when the alarm goes off.. am developing using and emulator...so not sure.. also i have come to know that vibrator service is not available in the emulator....is there an alternate way to ensure that the vibrator did go off as programmed...am using the vibrator servcie and also setting the vibrator in the notification.
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Nov 9, 2010
I'd like to set the ringer mode to silent for specific events in the future. It should only happen if a checkbox in the preferences is checked. I know that I have to update the manifest for the permissions and also that I can set the ringer mode with something like this:
if (getPreferences(MODE_PRIVATE).getBoolean(PREFS_KEY_SILENTOPTION, false)) {
AudioManager audioManager = (AudioManager) getSystemService(AUDIO_SERVICE);
audioManager.setRingerMode(AudioManager.RINGER_MODE_SILENT);
}
But how can I set (and reset) it for a space of time in the future?
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Oct 5, 2010
I met a problem , i have a expandableListView has 5 groups, if i wanna add some items to the second group , and update the expandableListView at run time, could someone teach me how to do that?
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Jun 13, 2010
Is there am app on the market that will let me set an alarm on the phone that will start to shock her when it goes off?
Nothing that will hurt her, just get her to put the bleeping phone down and remember me?
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Oct 26, 2010
on my pim you can only set a reminder alarm as an offset from the event date/time and not as a specific date/time for the alarm itself
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Jun 29, 2010
I'm new here, hope I can post this here Does anyone know if you can set a specific time for the reminder for a specific event, i.e 9:12am, I couldn't find the feature and it really annoys me as in my 8 year old nokia I could set a specific time for the reminder to go off at for the calendar event. In the desire you can only set 5,10min..1,2,3,12,24hrs.. etc, but I need the reminder to go off i.e. 4 hours before the scheduled event or at 9:12. Any app suggestions? I've got the phone for like a day so maybe the feature is there but don't think so.
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Mar 14, 2010
I was wondering about the following scenario: I have an application that periodically needs to do some stuff, and at first I found that starting it as an alarm service was a neat way conserving resources AND being sure that the service would execute. However, my service also needs to know the location of the device, and I found that using getLastKnownLocation does not suffice as the location tends to be drastically outdated. I then tried adding a location listener, and requested location updates as frequently as possible, but then it could still take minutes before any location event was fired. So, now I have it running as a standard background service but I really don't like that approach. Is it possible to force a location fix within limited given that the circumstances enable acquiring a fix at all?
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Jun 6, 2010
I am having some design techniques about How shall I schedule a code to retrieve the weather info? Should I use alarms to retrieve the weather each 10 minutes? And do I need to run a service for this? Or just put the code in the Broadcastreceiver and start when the alarm fired?
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Jun 7, 2010
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_REALTIME_WAKEUP,
c.getTimeInMillis(), 1*60*60*1000, sender);
It is not executed at 23:22h. What I am doing wrong? I noticed firstTime and c.getTimeInMillis() differs a lot in size and length. When I use firstTime, so when set to 30 seconds, the alarm is executed well.
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Jul 2, 2009
I have a location manager: mLocationManager01 = (LocationManager)getSystemService (Context.LOCATION_SERVICE); because i want to stop the gps service, but when i use mLocationManager01.removeUpdates(mLocationListener01); that's not working to stop gps. how can i stop it?
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Dec 17, 2009
I am using marks' method of alarmreceiver and appservice. I am trying to pass a record id to the alarmintent through putextra and receive it in ontimealarmreceiver in getExtra. What I observe is, first time record id goes correct (say 11) second time record id is sent 12, but in receiver I receive record id = 11. Third time too record id -11
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Sep 16, 2010
I have just recently released my free app into the market and was wondering when is a good time to start placing ads in the app? Should I put it straight from the beginning?
I'm thinking maybe when the downloads gets to 5000 but these are numbers I'm pulling out of thin air so I would love for some of you guys to share your experience with placing ads in your app.
When did you place ads in your app? What kind of revenue was/is it making? And any tips for someone that has no idea where to start?
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May 7, 2010
It is very important that my service stay running until someone with a password stops the service from my UI screen. My app runs great but it is designed to be turned on/off by parents (with a password) on their kids phones. I have managed to make everything work but the problem I'm having is that if the kid uses a task manager to kill my service then my app is useless. I would be grateful to anyone who knows a way to either
1) monitor the service and start it back up automatically if its "killed"
or
2) prevent someone from being able to kill it except from the activity (administration screen) that launched the service. Or both?
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Nov 14, 2010
I am developing an Android app and I am doing some heavy work (bringing data from an online web page and parsing it to store in database) in a service. Currently, it is taking about 20+ mins and for this time my UI is stuck. I was thinking of using a thread in service so my UI doesn't get stuck but it is giving error.
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Sep 3, 2010
I have a launcher activity which gets activated everytime i start the application and a service which complements it. Now as i press the return key from my main activity .Its Ondestroy gets called.Now i have nullify the pointer of the my launcher activity there. now i am listening through the service any event happening on the network after closing the launcher activity thread and if any event occurs i have to relaunch my launcher activity. i have tried intent but doesnot seems to get though it .
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