How to schedule a local notification in iOS 10 (objective-c) [closed]

问题

I'd like to schedule local notifications using iOS 10. I'd like to know how to do this. I've looked all around the web, but I keep finding clues only for registering and handeling the notifications. Not for the scheduling of a local notification.

So, does anyone know how to do this?

回答1:

Try it. Its deprecated but working code. Use it for Before iOS 10.0 :

//Get all previous noti..
 NSLog(@"scheduled notifications: --%@----", [[UIApplication sharedApplication] scheduledLocalNotifications]);

 NSDate *now = [NSDate date];
 now = [now dateByAddingTimeInterval:60*60*24*7]; //7 for 7th day of the week.
 NSCalendar *calendar = [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar];

[calendar setTimeZone:[NSTimeZone localTimeZone]];
 NSDateComponents *components = [calendar components:NSYearCalendarUnit|NSMonthCalendarUnit|NSDayCalendarUnit|NSHourCalendarUnit|NSMinuteCalendarUnit|NSSecondCalendarUnit|NSTimeZoneCalendarUnit fromDate:now];


 NSDate *SetAlarmAt = [calendar dateFromComponents:components];


 UILocalNotification *localNotification = [[UILocalNotification alloc] init];

 localNotification.fireDate = SetAlarmAt;


 NSLog(@"FIRE DATE --%@----",[SetAlarmAt description]);

 localNotification.alertBody =@"Alert";

 localNotification.alertAction = [NSString stringWithFormat:@"My test for Weekly alarm"];

 localNotification.userInfo = @{
                           @"alarmID":[NSString stringWithFormat:@"123"],
                           @"SOUND_TYPE":[NSString stringWithFormat:@"hello.mp3"]
                           };

  localNotification.repeatInterval=0; //[NSCalendar currentCalendar];


  [[UIApplication sharedApplication] scheduleLocalNotification:localNotification];

For iOS 10.0 and later: Now try with UserNotifications framework: Add the framework, and import like #import . In Appdelegate Didfinishluanch method.

UNUserNotificationCenter *center = [UNUserNotificationCenter currentNotificationCenter];
    [center requestAuthorizationWithOptions:(UNAuthorizationOptionBadge | UNAuthorizationOptionSound | UNAuthorizationOptionAlert)
              completionHandler:^(BOOL granted, NSError * _Nullable error) {
                  if (!error) {
                      NSLog(@"request succeeded!");
                      [self testAlrt];
                  }
              }];

In your ibaction or method, write it and test:

 NSDate *now = [NSDate date];

// NSLog(@"NSDate--before:%@",now);

now = [now dateByAddingTimeInterval:60*60*24*7];

NSLog(@"NSDate:%@",now);

NSCalendar *calendar = [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar];

[calendar setTimeZone:[NSTimeZone localTimeZone]];

NSDateComponents *components = [calendar components:NSYearCalendarUnit|NSMonthCalendarUnit|NSDayCalendarUnit|NSHourCalendarUnit|NSMinuteCalendarUnit|NSSecondCalendarUnit|NSTimeZoneCalendarUnit fromDate:now];

NSDate *todaySehri = [calendar dateFromComponents:components]; //unused



UNMutableNotificationContent *objNotificationContent = [[UNMutableNotificationContent alloc] init];
objNotificationContent.title = [NSString localizedUserNotificationStringForKey:@"Notification!" arguments:nil];
objNotificationContent.body = [NSString localizedUserNotificationStringForKey:@"This is local notification message!"
                                                                    arguments:nil];
objNotificationContent.sound = [UNNotificationSound defaultSound];

/// 4. update application icon badge number
objNotificationContent.badge = @([[UIApplication sharedApplication] applicationIconBadgeNumber] + 1);


UNCalendarNotificationTrigger *trigger = [UNCalendarNotificationTrigger triggerWithDateMatchingComponents:components repeats:NO];


UNNotificationRequest *request = [UNNotificationRequest requestWithIdentifier:@"ten"
                                                                      content:objNotificationContent trigger:trigger];
/// 3. schedule localNotification
UNUserNotificationCenter *center = [UNUserNotificationCenter currentNotificationCenter];
[center addNotificationRequest:request withCompletionHandler:^(NSError * _Nullable error) {
    if (!error) {
        NSLog(@"Local Notification succeeded");
    }
    else {
        NSLog(@"Local Notification failed");
    }
}];

回答2:

Follow the step: 1. Import UserNotifications.framework and go to your AppDelegate class.

In .h

#import <UserNotifications/UserNotifications.h>
@interface AppDelegate : UIResponder          <UIApplicationDelegate,UNUserNotificationCenterDelegate>

@end

#define SYSTEM_VERSION_GRATERTHAN_OR_EQUALTO(v)  ([[[UIDevice currentDevice] systemVersion] compare:v options:NSNumericSearch] != NSOrderedAscending)

Now add this in did finish launching :

-(BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions{
   [self registerForRemoteNotifications];
return YES;
}

 - (void)registerForRemoteNotifications {
  if(SYSTEM_VERSION_GRATERTHAN_OR_EQUALTO(@"10.0")){
    UNUserNotificationCenter *center = [UNUserNotificationCenter currentNotificationCenter];
    center.delegate = self;
    [center requestAuthorizationWithOptions:(UNAuthorizationOptionSound | UNAuthorizationOptionAlert | UNAuthorizationOptionBadge) completionHandler:^(BOOL granted, NSError * _Nullable error){
         if(!error){
             [[UIApplication sharedApplication] registerForRemoteNotifications];
         }
     }];  
}
else {
    // Code for old versions
}
}

Delegate methods for UserNotifications :

  //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);
completionHandler(UNAuthorizationOptionSound | UNAuthorizationOptionAlert | UNAuthorizationOptionBadge);
}

 //Called to let your app know which action was selected by the user for a given notification.
 -(void)userNotificationCenter:(UNUserNotificationCenter *)center didReceiveNotificationResponse:(UNNotificationResponse *)response withCompletionHandler:(void(^)())completionHandler{
 NSLog(@"User Info : %@",response.notification.request.content.userInfo);
  completionHandler();
  }

Push Notifications Entitlements : From project target’s Capabilities tab and add Push Notifications Entitlements.
Add push and mobile certificate properly. Hope this is everything you need!

For more info: http://ashishkakkad.com/2016/09/push-notifications-in-ios-10-objective-c/

来源：https://stackoverflow.com/questions/39941778/how-to-schedule-a-local-notification-in-ios-10-objective-c

标签

objective-c

ios10

usernotifications