Databases
StackOverflow2013
Postsdbo
POInstance variables not working in ViewController in UINavigationController
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POInstance variables not working in ViewController in UINavigationController
    primarykey
    data
    text
    <p>I'm still new to iOS development but I've ran into a problem that I can't solve and I've tried looking online but can't find anything yet.</p> <p>I'm using a UIImagePickerController to pick and image and I'm using it in the App Delegate. When an image is returned, in the imagePickerController:didFinishPickingMediaWithInfo method, I want to make a new navigation controller with a view controller and put it over the "app".</p> <p>Here is how I'm doing it:</p> <pre><code>CustomNavigationController *customNavigationController = [[CustomNavigationController alloc] init]; PhotoViewController *photoViewController = [[PhotoViewController alloc] initWithNibName:@"PhotoViewController" bundle:[NSBundle mainBundle]]; [customNavigationController pushViewController:photoViewController animated:NO]; [customNavigationController.view setFrame:[[UIScreen mainScreen] applicationFrame]]; [photoViewController release]; [self.window addSubview:customNavigationController.view]; //Call method of photoViewController. [[customNavigationController.viewControllers objectAtIndex:0] addPhotoFromData:info]; [self.tabBarController dismissViewControllerAnimated:YES completion:nil]; //Get rid of UIImagePickerController </code></pre> <p>However in the photoViewController, I don't have access to any instance variables synthesized and loaded in viewDidLoad. They all return to null. There is also a tableView and calls to reload the tableView do not actually cause the tableView to respond.</p> <p>Here is some of the code from photoViewController</p> <pre><code>- (void)viewDidLoad { [super viewDidLoad]; self.photoCount = 0; self.timestamp = [[NSDate date] timeIntervalSince1970]; self.photos = [[NSMutableArray alloc] initWithCapacity:5]; self.photosData = [[NSMutableArray alloc] initWithCapacity:5]; self.uploadingCount = 0; UINib *customCell = [UINib nibWithNibName:@"CustomTableCell" bundle:[NSBundle mainBundle]]; [self.tableView registerNib:customCell forCellReuseIdentifier:@"customCell"]; self.tableView.separatorColor = [UIColor clearColor]; NSLog(@"%@", self); } </code></pre> <p>and also the addPhotoFromData method:</p> <pre><code>- (void)addPhotoFromData:(NSDictionary *)info { [self.photos addObject:info]; NSLog(@"%@", self.photos); //Doesn't add "info" and does not return anything when later called from other methods. [self.tableView reloadData]; //Doesn't work </code></pre> <p>Everything was working before I add in the UINavigationController. I'm completely lost.</p> <p><strong>EDIT:</strong> After some more debugging attempts, I have discovered that the view is not loaded when addPhotoFromData is called. viewDidLoad is called afterwords. Is there a way to delay method calls?</p>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. USYuriy
    1. USYuriy
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. COWhy do you need to make a new navigation controller? Just push a new view on the current one.
      singulars
      1. POInstance variables not working in ViewController in UINavigationController
      1. USmsgambel
    2. COIt's a tabbed application and I want to kind of replicate Instagram where if you press the middle tab you can take the photo and then it goes another view where you can't see the tab bar. I need another view after that so I assumed I should use a navigation controller.
      singulars
      1. POInstance variables not working in ViewController in UINavigationController
      1. USYuriy
    3. COAlso if I push another view controller over the initial photoViewController, there is no problem with instance variables there.
      singulars
      1. POInstance variables not working in ViewController in UINavigationController
      1. USYuriy
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload