iOS TableView not reloading if current view is tableViewController

Question

- (void)application:(UIApplication *)app didReceiveLocalNotification:(UILocalNotification *)notif {
    // Handle the notificaton when the app is running

    NSLog(@"Recieved Notification %@",notif);

    NSLog(@"local notifications count = %d", [[[UIApplication sharedApplication] scheduledLocalNotifications] count]);
}

This is the method from app delegate, and I need to reload the table view when a notification arrives.

How can I implement the reloadData, since Xcode won't accept if I write "[TableViewController.tableView reloadData];"?

score 4 · Accepted Answer · answered Jun 26 '12 at 07:59

//Just do one thing, as you got the notification , post on more notification as follows in the method ....

- (void)application:(UIApplication *)app didReceiveLocalNotification:(UILocalNotification *)notif {

[[NSNotificationCenter defaultCenter] postNotificationName:@"RELOAD_DATA"object:nil];
}

//the add observer in viewDidLoad of that view controller where your table is added..

 [[NSNotificationCenter defaultCenter] addObserver:self
    selector:@selector(receiveTableNotification:) 
    name:@"RELOAD_DATA"
    object:nil];

//and make a method in the same class 

- (void)receiveTableNotification:(NSNotification *)pNotification{
    [your_table_view reloadData];
}

//now remove obser in dealloc in your view controller class where you add observer .. 

- (void) dealloc
{

    [[NSNotificationCenter defaultCenter] removeObserver:self];
    [super dealloc];
 }

Bingo!!!!!!! Man, you just solved a problem I'm trying for 1 week now. Super thank you. Really. I can't explain how happy I am right now. — Lucas Vallim da Costa, Jun 26 '12 at 08:04
@Abhishek can we do it without notification? i am doing it in swift — user2413621, Feb 05 '15 at 19:30

score 0 · Answer 2 · answered Jun 26 '12 at 07:27

0

instead of TableViewController.tableView use [self.viewController.tableView reloadData];

If your current view Controller is not the tableView, consider using NSNotificationCenter to post a reload notification

answered Jun 26 '12 at 07:27

Omar Abdelhafith

21,163
5
52
56

Could you post me an example of this? I'm new to iOS – Lucas Vallim da Costa Jun 26 '12 at 07:31
did you try using this [self.viewController.tableView reloadData]? – Omar Abdelhafith Jun 26 '12 at 07:31
Yes, when I write [self.TableViewController.tableView reloadData] Xcode gives me "propery 'TableViewController' not found on object of type 'AppNameAppDelegate' – Lucas Vallim da Costa Jun 26 '12 at 07:34
post your code for - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions, so i can see what are your doing there – Omar Abdelhafith Jun 26 '12 at 07:36
I got nothing in this AppDelegate method. just "return YES" Is there something I should write on it? – Lucas Vallim da Costa Jun 26 '12 at 07:39

score 0 · Answer 3 · answered Jun 26 '12 at 07:29

0

use NSNotificationCenter postNotification: mechanism for posting a reloadTable notification which you can catch in your class having tableViewController by observer to fire reloadData for your tableview

answered Jun 26 '12 at 07:29

Saurabh Passolia

8,099
1
26
41

score 0 · Answer 4 · answered Jun 26 '12 at 07:38

0

Please call this in app deligate within the call backfunction

- (void)application:(UIApplication *)app didReceiveLocalNotification:(UILocalNotification *)notif {

      UINavigationController *navControl = [[[self tableViewController] viewControllers] objectAtIndex:lastObject]; //
         id Obj = [[navControl viewControllers] lastObject];
                if([Obj isKindOfClass:[Required class]])
                {
                   [Obj reloadDataOfTable];// made an function to desired class.
                }
}

answered Jun 26 '12 at 07:38

Prabhat Kasera

1,129
11
28

do I put it exactly as it is here? – Lucas Vallim da Costa Jun 26 '12 at 07:44
you need to make changes.... little bit... according to your class name and tableviewcontroller name – Prabhat Kasera Jun 26 '12 at 07:46
The problem is Xcode won't accept my tableView name. WHen I write [self TableViewController] I get errors saying no such property exists – Lucas Vallim da Costa Jun 26 '12 at 07:49
please see the appdeligate class .h file and see the name of tableviewcontroller... you will get it.... you can also call it with .(DOT operator) – Prabhat Kasera Jun 26 '12 at 07:55

iOS TableView not reloading if current view is tableViewController

4 Answers4