Question

I have an application in which i have button. When i click on button then generate a local notification. The variable of local notification is set in appDelegate file. For generate local notification i used this code:-

UILocalNotification* ln = [[UILocalNotification alloc] init];
ln.alertBody = @”Time for another cup of coffee!”;
ln.applicationIconBadgeNumber = 1;
ln.fireDate = notification_date; //[NSDate dateWithTimeIntervalSinceNow:15];
ln.timeZone = [NSTimeZone timeZoneWithAbbreviation:@”GMT”];
NSString *string_date=[formatter stringFromDate:notification_date];
NSDateFormatter* formatter_alarm = [[[NSDateFormatter alloc] init] autorelease];
formatter_alarm.timeZone = [NSTimeZone timeZoneWithAbbreviation:@”GMT”];
[formatter_alarm setDateFormat:@”hh:mm a”];
NSString *str=[formatter_alarm stringFromDate:notification_date];
appDelegate.alarm_time=[NSString stringWithFormat:@”%@”,str];
NSLog(@”%@”,appDelegate.alarm_time);

        [[NSUserDefaults standardUserDefaults] setObject:appDelegate.alarm_time forKey:@"alarm_on_time"];
        [[NSUserDefaults standardUserDefaults] setObject:string_date forKey:@"alarm_on_date"];
         [[NSUserDefaults standardUserDefaults] synchronize]; 
        NSLog(@"alarm will activate on%@",notification_date);
        ln.soundName = @"alarm.wav";
        AudioServicesPlayAlertSound(kSystemSoundID_Vibrate);

        ln.repeatInterval=NSDayCalendarUnit;
        [[UIApplication sharedApplication] scheduleLocalNotification:ln];

// if(appDelegate.appDelegate_notification ==nil)
// appDelegate.appDelegate_notification= [[UILocalNotification alloc] init];
appDelegate.appDelegate_notification=ln;
[ln release];

Now i have a another button which is used for change the sound of local notification. I wan t that when user click on that button then change the sound of local notification. For that purpose i use this code:-

appDelegate.appDelegate_notification.soundName = @”Blow.wav”;

Now problem is that when i click on another button then sound of local notification is not changed. How make that event on button click?

Thanks in advances…

Answer 1

When we generate any local notification then we can set sound file at that time . If we want to set sound after setting notification then i get only one way that i share here. When we edit any sound of alert then first we have to save fire date of alert and after that we will cancel that alert and set a new alert with same fire date anad this time we will pass new sound file. I use this and working fine.