CODEWITHSUNDEEP
iosuinavigationcontrollertableview
Stonep123
Stonep123

Reputation: 625

reloading tableView of one view controller from a pushed view controller

I've got a Parse background block that uploads some data. This occurs in a view controller (lets call it addDataViewController) that was pushed onto another view controller (where my table view is, lets call that tableViewController). I need to reload that tableView when the data finishes uploading. Ive got a navigation controller embedded in my storyboard so ive tried doing

//In addDataViewController
//when the data finishes uploading
self.navigationController.viewControllers objectAtIndex:0];

but for some reason the viewController stack was nil.

Then I tried referencing tableViewController as a property of the addDataViewController in prepare for segue of tableViewController. I added a tableViewController property to my h file of addDataViewController 

//in prepare for segue of tableViewController
dataViewController.tableViewController = self;

then referenced that objects tableView and called reloadData, but nothing seemed to happen

[self.tableViewController.tableView reloadData];

I thought for sure that would have worked, but it didnt. Any ideas?

Upvotes: 0

Views: 501

Answers (2)

user2068378
user2068378

Reputation: 114

If you are importing view controller then you must use [self.addChildViewController:tableViewController.view];

hope this will help.

Upvotes: 0

thorb65
thorb65

Reputation: 2716

one approach is to use notifications. in your addDataViewController you would fire a notification, when the update is done:

[[NSNotificationCenter defaultCenter] postNotificationName:@"UpdateDone" object:nil];

in your tableViewController you would subscribe to the notification in viewDidLoad:

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

and then:

-(void)doSomething {
    [self.tableView reloadData];
}

Upvotes: 0

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