In my application there is two viewControllers as FirstViewController
and DetailViewController
. When tap on a table cell, it navigate to DetailViewController
. In DetailViewController
, I want to edit and reload the FirstViewController
's table view
How can I use NSNotification
for this problem?
Here's the method I want to implement NSNotification
stuff
-(IBAction) save{
strSelectedText=theTextField.text;
[NSNotificationCenter defaultCenter];
NSNotification* notification = [NSNotification notificationWithName:@"MyNotification" object:self];
[[NSNotificationCenter defaultCenter] postNotification:notification];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector (objFirstViewController) name:@"MyNotification" object:nil];
[self.navigationController popViewControllerAnimated:YES];
}
-(void)viewDidLoad {
[NSNotificationCenter defaultCenter];
NSNotification* notification = [NSNotification notificationWithName:@"MyNotification" object:self];
[[NSNotificationCenter defaultCenter] postNotification:notification];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector (objFirstViewController) name:@"MyNotification" object:nil];
}
-(IBAction) save{
[[NSNotificationCenter defaultCenter] postNotificationName:MyNotification object:sender];
//this will go to where you implement your selector objFirstViewController.
}
-(void)objFirstViewController:(NSNotification *)notification {
}
post the notification from detailViewController and add firstViewController as the observer.
Make sure you remove fireViewController from the observer list from viewDidUnload.
Right now you are adding detailViewController as observer.
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