I am trying to implement local notification into my application. I don't know how to do properly, below code i am using for new data arrival process, here after how to implement Notification process and I need notification during foreground and background both time
Below I had successfully background fetching process for new data arrival checking method
// Value matching and trying to get new data [live_array removeObjectsInArray:stored_array]; // if you require result as a string NSString *result = [stored_array componentsJoinedByString:@","]; NSLog(@"New Data: %@", result); // objects as string:
Above code finally giving some string value...Once the value came I want to show notification. Everything I am doing into appdelegate.
Thanks
1) When the app is closed, schedule a local notification that will fire in 24 hours
- (void)applicationDidEnterBackground:(UIApplication *)application { UILocalNotification *notification = [[UILocalNotification alloc] init]; notification.fireDate = [[NSDate date] dateByAddingTimeInterval:60*60*24]; notification.alertBody = @"24 hours passed since last visit :("; [[UIApplication sharedApplication] scheduleLocalNotification:notification]; }
2) if the app is opened (before the local notification fires), cancel the local notification
- (void)applicationDidBecomeActive:(UIApplication *)application { [[UIApplication sharedApplication] cancelAllLocalNotifications]; }
//For local Notification
first thing we need to do is register the notifications.
// New for iOS 8 - Register the notifications UIUserNotificationType types = UIUserNotificationTypeBadge | UIUserNotificationTypeSound | UIUserNotificationTypeAlert; UIUserNotificationSettings *mySettings = [UIUserNotificationSettings settingsForTypes:types categories:nil]; [[UIApplication sharedApplication] registerUserNotificationSettings:mySettings];
Now let’s create the notification itself
UILocalNotification *notification = [[UILocalNotification alloc] init]; if (notification) { notification.fireDate = _datePicker.date; NSDate *fireTime = [[NSDate date] addTimeInterval:10]; // adds 10 secs notification.fireDate = fireTime; notification.alertBody = @"Alert!"; notification.timeZone = [NSTimeZone defaultTimeZone]; notification.applicationIconBadgeNumber = 1; notification.soundName = UILocalNotificationDefaultSoundName; switch (_frequencySegmentedControl.selectedSegmentIndex) { case 0: notification.repeatInterval = NSCalendarUnitDay; break; case 1: notification.repeatInterval = NSCalendarUnitWeekOfYear; break; case 2: notification.repeatInterval = NSCalendarUnitYear; break; default: notification.repeatInterval = 0; break; } notification.alertBody = _customMessage.text;
Once we have the notification created we need to schedule it with the app.
// this will schedule the notification to fire at the fire date [[UIApplication sharedApplication] scheduleLocalNotification:notification]; // this will fire the notification right away, it will still also fire at the date we set [[UIApplication sharedApplication] presentLocalNotificationNow:notification];
If we leave things the way they are now a notification will only appear on screen if the app is in the background. In order to display something when the app is in the foreground and a notification fires we need to implement a method in the app delegate.
- (void)application:(UIApplication *)application didReceiveLocalNotification:(UILocalNotification *)notification { UIAlertView *alertView = [[UIAlertView alloc]initWithTitle:@"Notification Received" message:notification.alertBody delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil, nil]; [alertView show]; }
We added a icon badge to our app, and this icon badge will only display when the app is in the background. Generally you want to dismiss the icon once a user has opened the app and seen the notification. We’ll need to handle this in the app delegate as well.
These two methods will take care of it.
- (void)applicationWillEnterForeground:(UIApplication *)application { // Called as part of the transition from the background to the inactive state; here you can undo many of the changes made on entering the background. NSLog(@"%s", __PRETTY_FUNCTION__); application.applicationIconBadgeNumber = 0; } - (void)applicationDidBecomeActive:(UIApplication *)application { // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface. NSLog(@"%s", __PRETTY_FUNCTION__); application.applicationIconBadgeNumber = 0; }
IOS 10 by apple document
UNMutableNotificationContent* content = [[UNMutableNotificationContent alloc] init]; content.title = [NSString localizedUserNotificationStringForKey:@"Hello!" arguments:nil]; content.body = [NSString localizedUserNotificationStringForKey:@"Hello_message_body" arguments:nil]; content.sound = [UNNotificationSound defaultSound]; // Deliver the notification in five seconds. UNTimeIntervalNotificationTrigger* trigger = [UNTimeIntervalNotificationTrigger triggerWithTimeInterval:5 repeats:NO]; UNNotificationRequest* request = [UNNotificationRequest requestWithIdentifier:@"FiveSecond" content:content trigger:trigger]; // Schedule the notification. UNUserNotificationCenter* center = [UNUserNotificationCenter currentNotificationCenter]; [center addNotificationRequest:request completionHandler:nil];
