i want that my app will run in the background and do check on somethings.
and if so the local notification will show.
i use this code in the method that check:
UIApplication *app = [UIApplication sharedApplication];
UILocalNotification *notification = [[UILocalNotification alloc] init];
NSArray *oldNotifications = [app scheduledLocalNotifications];
if ([oldNotifications count] > 0) {
[app cancelAllLocalNotifications];
}
if (notification == nil)
return;
NSDate *notificationDate = [NSDate dateWithTimeIntervalSinceNow:10];
notification.fireDate = notificationDate;
notification.timeZone = [NSTimeZone systemTimeZone];
notification.alertBody = #"Test Body";
[app scheduleLocalNotification:notification];
[notification release];
the problem is that when the app is in the foreground it show the alert, but if the app is in the background the notification not show to the screen.
the check that i do is running on uiwebview and reload every 10 seconds, so he need to run in the background too.
Your app won't run in background, except certain cases. Look in to this How to run the application in the background? post.
Related
I have my notification, but for some reason it still doesnt come up as an alert view.
Here it is :
- (void)applicationDidEnterBackground:(UIApplication *)application
{
UIApplication *app = [UIApplication sharedApplication];
UILocalNotification *notification = [[UILocalNotification alloc] init];
if (notification) {
notification.fireDate = [NSDate dateWithTimeIntervalSinceNow:5];
notification.timeZone = [NSTimeZone defaultTimeZone];
notification.alertBody = #"Notification";
notification.alertAction = #"View";
[app scheduleLocalNotification:notification];
}
If you want to view your local notification as a UIAlertView and not a banner, you'll have to test your app on an actual device and change your app's notification 'Alert Style' in Settings. Since, as you said, there is no 'Notifications' option in the simulator's Settings, it will always default to a banner.
I am working on an islamic PrayerTimes app that gives five prayertimes a day.So my goal for now is to deliver five notifications to the user everyday at specific prayerTimes. then i created five notifications for each prayers , assigned five firedate for each notification, and i can get the notification delivered .
However , my problem is every time i run the app or restart the app i am having a notification on notification center, at the console area i can see all the older notifications are delivered as well (I overrode application:didReceiveLocalNotification: method).
Frankly I am not a experienced developer , i really didn't get this , and I thought my code is very long.
So can somebody help me and tell how can i manage to do this ? :) (my english is not that good please be tolerant). if i missed some other sing to inform ,please tell.
Here is my code ;
Edit: I call this mehod from viewDidLoad.
I　got five times in an array blow:
NSSArray *timeArray = #[time0,time1,time2,time3,time4];
I sceduled five UILocalNotification like this:
if (localNotification0 != nil) {
[[UIApplication sharedApplication] cancelLocalNotification:localNotification0];
}
NSDate *date0 = [_timeArray objectAtIndex:0];
NSLog(#"date %#",date0);
localNotification0 = [[UILocalNotification alloc] init];
localNotification0.fireDate = date0;
localNotification0.timeZone =[NSTimeZone defaultTimeZone];
NSLog(#"firedate %#",localNotification0.timeZone);
localNotification0.alertBody = #"Se";
localNotification0.soundName = _adhanName;
[[UIApplication sharedApplication] scheduleLocalNotification:localNotification0];
if (localNotification1 != nil) {
[[UIApplication sharedApplication] cancelLocalNotification:localNotification1];
}
NSDate *date1 = [_timeArray objectAtIndex:1];
localNotification1 = [[UILocalNotification alloc] init];
localNotification1.fireDate = date1;
NSLog(#"firedate %#",localNotification1.fireDate);
localNotification1.timeZone =[NSTimeZone defaultTimeZone];
localNotification1.alertBody = #"Se";
localNotification1.soundName = _adhanName;
[[UIApplication sharedApplication] scheduleLocalNotification:localNotification1];
[localNotification1 release];
if (localNotification2 != nil) {
[[UIApplication sharedApplication] cancelLocalNotification:localNotification2];
}
NSDate *date2 = [_timeArray objectAtIndex:2];
localNotification2 = [[UILocalNotification alloc] init];
localNotification2.fireDate = date2;
localNotification2.timeZone =[NSTimeZone defaultTimeZone];
NSLog(#"firedate %#",localNotification2.fireDate);
localNotification2.alertBody = #"Se";
localNotification2.soundName = _adhanName;
[[UIApplication sharedApplication] scheduleLocalNotification:localNotification2];
[localNotification2 release];
if (localNotification3 != nil) {
[[UIApplication sharedApplication] cancelLocalNotification:localNotification3];
}
NSDate *date3 = [_timeArray objectAtIndex:3];
localNotification3 = [[UILocalNotification alloc] init];
localNotification3.fireDate = date3;
localNotification3.timeZone =[NSTimeZone defaultTimeZone];
NSLog(#"firedate %#",localNotification3.fireDate);
localNotification3.alertBody = #"Se";
localNotification3.soundName = _adhanName;
[[UIApplication sharedApplication] scheduleLocalNotification:localNotification3];
[localNotification3 release];
if (localNotification4 != nil) {
[[UIApplication sharedApplication] cancelLocalNotification:localNotification4];
}
NSDate *date4 = [_timeArray objectAtIndex:4];
localNotification4 = [[UILocalNotification alloc] init];
localNotification4.fireDate = date4;
localNotification4.timeZone =[NSTimeZone defaultTimeZone];
NSLog(#"firedate %#",localNotification4.fireDate);
localNotification4.alertBody = #"Se";
localNotification4.soundName = _adhanName;
[[UIApplication sharedApplication] scheduleLocalNotification:localNotification4];
[localNotification4 release];
Is there other more easy way to do this ? pleas help me out!
For starters, it looks like you can shorten your code by using a loop, something like this:
for (NSDate *time in times) {
if (localNotification3 != nil) {
[[UIApplication sharedApplication] cancelLocalNotification:localNotification3];
}
UILocalNotification *note = [[UILocalNotification alloc] init];
note.fireDate = time;
note.timeZone =[NSTimeZone defaultTimeZone];
note.alertBody = #"Se";
note.soundName = _adhanName;
[[UIApplication sharedApplication] scheduleLocalNotification:note];
[note release]; // no need to release note if you use ARC
}
That loop will run once for each entry in your times array, reducing the amount of code you need by a factor of 5, in this case, or [times count] in general.
every time i run the app or restart the app i am having a notification on notification center
I'm not sure I fully understand what's wrong here, but if any/all the notifications are being presented too soon, it sounds like you should check the times for which they're scheduled. If the problem is that your app keeps scheduling new notifications every time it starts, resulting in too many notifications, then you have at least two options:
use -cancelAllLocalNotifications before you schedule any new notifications
record the times for which notifications have already been scheduled (NSUserDefaults is good for that kind of thing) and avoid scheduling new notifications for those times
I want to implement local notification in my clock app.Basically i want that a music file should be played after every half an hour like in ship's clock in which chimes are played after every 30 minutes.
Can anyone give rough idea as how i can implement this functionality even when the app enters in background?
I recently used the Local notification stuff and used the following functions
//Setting up the Local Notifications
for (int i= 1 ; i<=10; i++) { //We here set 10 Notification after every 30 minutes from now you can modify it accordingly
NSDate *scheduled = [[NSDate date] dateByAddingTimeInterval:60*30*i]; //These are seconds
NSDictionary* dataDict = [NSDictionary dictionaryWithObjectsAndKeys:scheduled,FIRE_TIME_KEY,#"Background Notification received",NOTIFICATION_MESSAGE_KEY,nil];
[self scheduleNotificationWithItem:dataDict];
}
Where scheduleNotificationWithItem is defined as
- (void)scheduleNotificationWithItem:(NSDictionary*)item {
UILocalNotification *localNotification = [[UILocalNotification alloc] init];
if (localNotification == nil) return;
localNotification.fireDate = [item valueForKey:FIRE_TIME_KEY];
localNotification.timeZone = [NSTimeZone defaultTimeZone];
localNotification.alertBody = [NSString stringWithFormat:NSLocalizedString(#"%#", nil), [item valueForKey:NOTIFICATION_MESSAGE_KEY]];
localNotification.alertAction = NSLocalizedString(#"View Details", nil);
localNotification.soundName = UILocalNotificationDefaultSoundName;
localNotification.userInfo = item;
[[UIApplication sharedApplication] scheduleLocalNotification:localNotification];
[localNotification release];
}
Finally you can handle these notifications as
You can handle these notifications as follows
- (void)application:(UIApplication *)application didReceiveLocalNotification:(UILocalNotification *)notification {
// Do the required work you can obtain additional Info via notification.userInfo which happens to be a dictionary
}
reading the developer documentation will help you more to understand the stuff.Hope it helps
You can use UILocalNotifications and set their 'firedate', according to your requirement and then schedule the notification. These notifications doesn't bother whether your app is running or is in background they will always show up like an alertview.
i want to set localnotification say for a program which starts at 6:00 pm.For that i have taken the time in a date variable and i am comparing it with current date from system.
Say setDate is for fixed date i.e 6.00 pm so i have to set firedate such that it shows the notification before 30 mintes the program starts. The examples i have seen in that the firedate is set according to currentdate.
Can someone tell me how can i set firedate according to my fixed date??
You fire the local notification this way
UILocalNotification *localNotif = [[UILocalNotification alloc] init];
if (localNotif == nil)
return;
localNotif.fireDate = [NSDate date];// Now here you can manage the fire time.
localNotif.timeZone = [NSTimeZone defaultTimeZone];
// Notification details
localNotif.alertBody = #"BusBuddy";
// Set the action button
localNotif.alertAction = #"View";
localNotif.soundName = UILocalNotificationDefaultSoundName;
localNotif.applicationIconBadgeNumber = 1;
// Specify custom data for the notification
NSDictionary *infoDict = [NSDictionary dictionaryWithObject:#"You are near to reach the Bus Stop" forKey:#"someKey"];
localNotif.userInfo = infoDict;
// Schedule the notification
[[UIApplication sharedApplication] scheduleLocalNotification:localNotif];
[localNotif release];
This line of code will work for you. you just need to provide the date time for this
localNotif.fireDate = [NSDate date];
And now for formatting your date time you can refer to these links
iphonedevelopertips.com
developer.apple.com, CFDatesAndTimes
developer.apple.com, DataFormatting
Well then you can handle your local notification in application delegate file when ever you get the notification.
e.g. here is the delegate method which is fired everytime when you get the local notification.
- (void)application:(UIApplication *)app didReceiveLocalNotification:(UILocalNotification *)notif {
//Handle the notificaton when the app is running
NSLog(#"Recieved Notification %#",notif);
UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:#"Hey Neha" message:#"Sanjay wants to be your friend " delegate:self cancelButtonTitle:#"OK" otherButtonTitles:nil, nil];
[alertView show];
[alertView release];
SystemSoundID bell;
AudioServicesCreateSystemSoundID((CFURLRef)[NSURL fileURLWithPath:[[NSBundle mainBundle] pathForResource:#"WhoopFlp" ofType:#"wav"]], &bell);
AudioServicesPlaySystemSound (bell);
AudioServicesPlaySystemSound(kSystemSoundID_Vibrate);
i=0;
}
}
So what I am doing here is simply showing the alert and playing a system sound when my local notification occurs.
So now what you want is to navigate to the page in the program where you were when you get the local notification.So simply in this delegate method you need to allocate your view controller and need to push the view controller to that view where you want to be.
That would solve your problem.
Well i had a similar kind of problem what i wanted is to show the notification in the background and in the front end as well, so writing the 2 different methods in my app was not worthful.so i handled it this way in the delegate method which will show the notification in the front end as well.
Good luck to you.
localnotification =[[UILocalNotification alloc]init];
[localnotification setFireDate:[NSDate dateWithTimeIntervalSinceNow:[lodatepicker countDownDuration]]];
[localnotification setAlertAction:#"Launch"];
[localnotification setHasAction: YES];
[localnotification setAlertBody:[lotextview text]];
// [localnotification setSoundName:musicString];
localnotification.timeZone = [NSTimeZone defaultTimeZone];
[localnotification setApplicationIconBadgeNumber:[[UIApplication sharedApplication] applicationIconBadgeNumber]+1];
[[UIApplication sharedApplication] scheduleLocalNotification:localnotification];
I have used the code from apples example from this page: Link, but I can't seem to get the sound to repeat. I have checked other applications, such as skype (for VOIP) and Alarm Clock Pro (audio?) but I cannot get the sound file to be repeated.
This is my code:
- (void)applicationDidEnterBackground:(UIApplication *)application
{
AlarmHandler *AHinstance = getAlarmHandlerInstance();
UIApplication* app = [UIApplication sharedApplication];
NSArray *alarmList = [AHinstance getAlarms];
NSArray *oldNotifications = [app scheduledLocalNotifications];
if ([oldNotifications count] > 0)
{
[app cancelAllLocalNotifications];
}
for (Alarm *theAlarm in alarmList) {
NSDate *alarmDate = [theAlarm getNearestActivationDate];
Package *alarmPackage = [theAlarm getAlarmPackage];
NSArray *fileList = [alarmPackage getVoiceFileListForBackgroundNotificationWithHour:theAlarm.larmHour];
if( alarmDate == nil ) continue;
UILocalNotification* alarm = [[[UILocalNotification alloc] init] autorelease];
if (alarm)
{
NSLog(#"File: %#", [fileList objectAtIndex:0]);
alarm.fireDate = alarmDate;
alarm.timeZone = [NSTimeZone defaultTimeZone];
alarm.soundName = [fileList objectAtIndex:0];
alarm.alertBody = #"Time to wake up!";
alarm.repeatInterval = 0;
[app scheduleLocalNotification:alarm];
}
}
}
Any suggestions on how I can fix this?
I have had suggestions to register app as audio player and play sounds in the background, but it seems that apple does take kindly to those applications because they aren't real audio players. Therefore they deny those apps.
Regards,
Paul Peelen
There is no way to do this for local notifications. You can either register as a VOIP app or as a "background audio" app, which have separate APIs. However, if you do not provide appropriate functionality to qualify for those kinds of uses, you'll most likely be rejected.
Yes this is possible, as the documentation states:
Your own applications can schedule up to 128 simultaneous notifications, any of which can be configured to repeat at a specified interval
You just need to configure the repeatInterval property:
The calendar interval at which to reschedule the notification.