Multiple Unusernotifications Not Firing

Multiple UNUserNotifications not firing

Give a different "requestWithIdentifier" and "time delay" for each notification and try, may it works for you.

Local notifications are not firing in ios10

Set NSDateComponents like:

NSDateComponents *components = [calendar components:NSCalendarUnitYear|NSCalendarUnitMonth|NSCalendarUnitDay|NSCalendarUnitHour|NSCalendarUnitMinute|NSCalendarUnitSecond|NSCalendarUnitTimeZone fromDate:[[NSDate date] dateByAddingTimeInterval:10]];

UNUserNotification doesn't fire out my local notification under iOS 12

Your code is working fine. I guess the problem is that your app is active when you receive the notifications. iOS shows system notifications only if the app is not active. If app is active when notifications fires, the system triggers the UNUserNotificationCenterDelegate method so you could handle the notification by yourself.

So since you set a notification time with a delay for 10 seconds, you need to run your app, then close it and wait for 10 seconds. Notification should appear if you give your app such a permission.

Showing a UIAlertAction based on UNUserNotification iOS not working as expected

I figured out how to do it.

I got rid of trying to implement the UNUserNotificationCenterDelegate in another class and just did it in my View Controller:

#import <UIKit/UIKit.h>
#import "PickerViewHelperViewController.h"
@import UserNotifications;

@interface ViewController : UIViewController <UNUserNotificationCenterDelegate>

@property (weak, nonatomic) IBOutlet UIPickerView *pickerView;

@property (strong, nonatomic) PickerViewHelperViewController *pvHelper;

// Two methods needed to implement from the UNUserNotificationCenterDelegate
- (void)userNotificationCenter:(UNUserNotificationCenter *)center
       willPresentNotification:(UNNotification *)notification
         withCompletionHandler:(void (^)(UNNotificationPresentationOptions))completionHandler;

- (void)userNotificationCenter:(UNUserNotificationCenter *)center
didReceiveNotificationResponse:(UNNotificationResponse *)response
         withCompletionHandler:(void (^)())completionHandler;

@end

and then just had the accompanying code within my .m file to present a local notification.

- (void) sendMessage:(UIApplication *)application title:(NSString *)title message:(NSString *)message{
    UIAlertController *ac = [UIAlertController alertControllerWithTitle:title
                                                                message:message
                                                         preferredStyle:UIAlertControllerStyleAlert];

    UIAlertAction *action = [UIAlertAction actionWithTitle:@"Go Away!" style:UIAlertActionStyleDefault handler:nil];

    [ac addAction:action];

    dispatch_async(dispatch_get_main_queue(), ^{
        [application.keyWindow.rootViewController presentViewController:ac animated:YES completion:^{
            application.applicationIconBadgeNumber = 0;
        }];
    });
}

//Called when a notification is delivered to a foreground app.
-(void)userNotificationCenter:(UNUserNotificationCenter *)center
      willPresentNotification:(UNNotification *)notification
        withCompletionHandler:(void (^)(UNNotificationPresentationOptions options))completionHandler{

    NSLog(@"User Info : %@",notification.request.content.userInfo);
    [self sendMessage:[UIApplication sharedApplication] title:@"local notification within App" message:notification.request.content.body];
    completionHandler(UNAuthorizationOptionSound | UNAuthorizationOptionBadge);
}

//Called when a notification is delivered to a background app.
-(void)userNotificationCenter:(UNUserNotificationCenter *)center
didReceiveNotificationResponse:(UNNotificationResponse *)response
        withCompletionHandler:(void(^)())completionHandler{
    NSLog(@"User Info : %@",response.notification.request.content.userInfo);
    [self sendMessage:[UIApplication sharedApplication]
                title:@"I habe been opened from outside the App"
              message:response.notification.request.content.body];
    completionHandler(UNAuthorizationOptionSound | UNAuthorizationOptionAlert | UNAuthorizationOptionBadge);
}

my create notification and ask for permission methods above remained unchanged in the code.

This allowed for a local notification to appear within the app and for a notification to appear if the app was opened via the notification.

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