How to pass object with NSNotificationCenter

by

You’ll have to use the “userInfo” variant and pass a NSDictionary object that contains the messageTotal integer:

NSDictionary* userInfo = @{@"total": @(messageTotal)};

NSNotificationCenter* nc = [NSNotificationCenter defaultCenter];
[nc postNotificationName:@"eRXReceived" object:self userInfo:userInfo];

On the receiving end you can access the userInfo dictionary as follows:

-(void) receiveTestNotification:(NSNotification*)notification
{
    if ([notification.name isEqualToString:@"TestNotification"])
    {
        NSDictionary* userInfo = notification.userInfo;
        NSNumber* total = (NSNumber*)userInfo[@"total"];
        NSLog (@"Successfully received test notification! %i", total.intValue);
    }
}

More Related Contents:

  1. How do I add 1 day to an NSDate?
  2. What’s the best way to communicate between view controllers?
  3. How to write iOS app purely in C
  4. Synthesized property and variable with underscore prefix: what does this mean? [duplicate]
  5. Deep copying an NSArray
  6. Check that a input to UITextField is numeric only
  7. iOS application: how to clear notifications?
  8. How to find out who called a method?
  9. Cocoa error 3840 using JSON (iOS)
  10. self.variable and variable difference [duplicate]
  11. How to use a Objective-C #define from Swift
  12. convert UIImage to NSData
  13. Scrolling a UITableView inside a UIScrollView
  14. how to check screen size of iphone 4 and iphone 5 programmatically in swift
  15. How to track down cause of SIGABRT
  16. Advantages, problems, examples of adding another UIWindow to an iOS app?
  17. Delete all keys from a NSUserDefaults dictionary iOS
  18. Swift readonly external, readwrite internal property
  19. How can I round a float value to 2 post decimal positions?
  20. How to use Objective-C CocoaPods in a Swift Project
  21. How to reload and animate just one UITableView cell/row?
  22. How can I add forward class references used in the -Swift.h header?
  23. Can I disable UIPickerView scroll sound?
  24. Removing duplicates from NSMutableArray
  25. Can a Swift Optional Int (Int?) be exposed to Objective-C via bridging?
  26. Can you do custom animations for UITableView Cell Inserts?
  27. Swift – Objective-C load class method?
  28. Is it possible to detect that your iOS app is running on an iPad mini at runtime?
  29. Core Data unique attributes
  30. Class method equivalent of -respondsToSelector:

Leave a Comment