How to reload parent view

Question

How to update parent view, after i close the UIModalPresentationFormSheet view. If I use normal view I can reload my parent view. Issue only in UIModalPresentationFormSheet. Please help me. Thanks

 navigationController.modalPresentationStyle  = UIModalPresentationFormSheet;

If I use

navigationController.modalPresentationStyle  = UIModalPresentationFullScreen;

I can refresh the parent tableview.Issue only in UIModalPresentationFormSheet but I need to use UIModalPresentationFormSheet for popup view. Please help me. Thanks

I edit some data in "UIModalPresentationFormSheet" view. I want to show the changes in parent view. — Suppry, Feb 26 '13 at 06:49
you need some other to notify the change (KVO, NSNotificationCenter, delegate, pass a reference and call the method, so many way) — Bryan Chen, Feb 26 '13 at 06:54
@Joshy Joseph .... exactly so many ways are there wat he(@xlc0212) told .... — Nag_iphone, Feb 26 '13 at 07:16
I think the easiest method is to reload in 'viewWillAppear'. After you dismiss the form sheet your previous controller in the navigation controller will get 'viewWillAppear' called. — George, Feb 26 '13 at 07:55
@George Unfortunately not. The form is above the view and the view remains visible. So `viewWillAppear` is not called. — Mundi, Feb 26 '13 at 09:21
Then..use delegation. I always use deletion for stuff like this but I thought 'viewWillAppear' would be easier. Just declare a protocol and a delegate property , set it and call the method in the protocol at the appropriate time. — George, Feb 26 '13 at 09:35
viewWillAppear and viewDidLoad are not called when a view is re-displayed. See my answer at http://stackoverflow.com/a/18493699/1532399 — tooluser, Aug 28 '13 at 16:45

Mundi · Answer 1 · 2013-08-28T17:50:35.610

3

IMO easiest way:

//FormController.h

@protocol FormDelegate;

@interface FormController : UIViewController 
...
@property (nonatomic, assign) id <FormDelegate> delegate;
...
@end

@protocol FormDelegate
-(void)didDismissForm;
@end

//MainViewController.h

#import "FormController.h"    
@interface MainViewController : UIViewController <FormDelegate>
...

Set the delegate when creating (or performing segue of) the FormController.
Call the delegate method when you dismiss it. Implement the delegate method in the MainViewController.

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

edited Aug 28 '13 at 17:50

answered Feb 26 '13 at 11:14

Mundi

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If I use navigationController.modalPresentationStyle = UIModalPresentationFullScreen; I can refresh the parent tableview.Issue only in UIModalPresentationFormSheet but I need to use UIModalPresentationFormSheet for popup view. Please help me. Thanks – Suppry Mar 06 '13 at 08:32
Works exactly the same way. – Mundi Mar 06 '13 at 12:53

score 0 · Answer 2 · answered Aug 28 '13 at 18:38

You should delegate the parentView of PresentModalView and should call referesh method on the viewWillDisappear of PresentModalView.

Otherwise, you can try to push notification and observe it in parentView.

    - (void) refreshMyParentViewController{
     NSNotificationCenter *center = [NSNotificationCenter defaultCenter];
     [center postNotificationName:@"RefreshNeeded" object:self userInfo:refreshData];
}

//In ParentViewController -- AddObserver to detect data. // And the method you want to call.

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

- (void)delegateMethod:(NSNotification *)notification {
      NSLog(@"%@", notification.userInfo);
      NSLog(@"%@", [notification.userInfo objectForKey:@"RefreshObject"]);    
}



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

    - (void)delegateMethod:(NSNotification *)notification {
          NSLog(@"%@", notification.userInfo);
          NSLog(@"%@", [notification.userInfo objectForKey:@"RefreshObject"]);    
    }

How to reload parent view

2 Answers2