Databases
StackOverflow2013
Postsdbo
POCalling a parent UIViewControllers function
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POCalling a parent UIViewControllers function
    primarykey
    data
    text
    <p>Okay, I have a problem and has not been able to find what I'm doing wrong.</p> <p>I have a <code>UIVievController</code> with a view and some functions and stuff. One is to open (from a button in a actionsheet) another <code>UIVeiwController</code>. Looks like this:</p> <pre><code>PersonalSettings *personalSettings; -(IBAction) displaySettingsMenu:(id)sender { personalSettings = [[PersonalSettings alloc] initWithNibName:@"PersonalSettings" bundle:nil]; [self.view addSubview:personalSettings.view]; [SettingsSheet dismissWithClickedButtonIndex:0 animated:YES]; } </code></pre> <p>This works like a charm and I can make som updates in this view. When I close this view all the settings are updated properly and the view disappears, but what I want to do is to reload the parent <code>ViewController</code> (View?) so I can see the new settings I've made. I have a void function for this in the parent, but how can I call it? When the save-button is hit in the child <code>ViewController</code> I remove the view with:</p> <pre><code>[self.view removeFromSuperview]; </code></pre> <p>What I have to do from here is to call the update function from the child view for the parent view.</p> <p>I found some code for this, but with the exception "superclass" instead of "superview" since superview does not appears in the list. Looks like this:</p> <pre><code>[self.view removeFromSuperview]; MainViewController *Parent = (MainViewController *)self.superclass; [Parent updateView]; </code></pre> <p>Is there something "magic" I can do to say something like "reload parent view"?</p> <p>I hope I've made the problem understandable. :)</p> <p>EDIT:</p> <p>Really thanks you gyus, i'm closer now. I'm not 100% sure how this delegate thing works (yet) but i'm close to a solution. Actually, i realized don't even have to run a method, just update a label. </p> <p>From the child, i have written this:</p> <pre><code>MainViewController* Parent = [[MainViewController alloc] init]; Parent.delegate = self; Parent.TheLabel.text = @"foo"; </code></pre> <p>...but this does not work - even if it really finds the label and every thing. And if i from the child tries this:</p> <pre><code>NSLog(@"Parent label: %@", Parent.TheLabel.text); </code></pre> <p>it logs "Parent label: (null)".</p> <p>But, however, i can reach the update function from the child now and it runs. The problem is that this function takes values from other labels (in the parent view) and this is where it crashes - they all say null when i run the function from the child. Even if their not. Any ideas why?</p>
    singulars
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PTQuestion
    1. USgubbfett
    1. USgubbfett
    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
    2. PO
      singulars
      1. PTAnswer
    3. PO
      singulars
      1. PTAnswer
    1. VO
      singulars
      1. POCalling a parent UIViewControllers function
      1. This table or related slice is empty.
      1. VTApproveEditSuggestion
    1. COThis is unrelated to your problem, but when you want to display a new view and associated `UIViewController`, you should use a view controller method. `- (void)presentModalViewController:(UIViewController *)modalViewController animated:(BOOL)animated` for example. If you just add the controller view as a subview, you lose all the nifty memory management methods you get for free with your view controllers.
      singulars
      1. POCalling a parent UIViewControllers function
      1. USkubi
    2. COIt's a shame i cant mark your comment as the fix, this did it! Now the parent updates properly since it runs the view did load.
      singulars
      1. POCalling a parent UIViewControllers function
      1. USgubbfett
 

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