Question

First of all I don’t know If controller is the right word. What I want to achieve is this.

   @interface ClubViewController : CoreDataTableViewController :NRGridViewController
   {

I know that this is not possible in objective-C. But is there a way to work around this?
Because I want to use CoreDateTableViewController and NRGridViewController.

Kind regards

Stef
EDIT

This is how my storyboard Hierarchy looks like.

-ViewController
  -TableView
      -View
      -TableViewCell

So I have a tableview Controller but above this tableview controller you find a small view with three buttons. When I push on button 1 I want to take the tableview away and draw a gridView with the NRGridview Controller. But when I push on button 2 and 3 I fill up my tableview using the CoreDataTableViewController.

I hope this explains more my problem.

Answer 1

I think one way to do this is with a container view with a container view controller inside it. That container controller would have 2 child controllers which would be your CoreDateTableViewController and NRGridViewController. I’ve implemented something like this, and I can show you some code if you’re interested.

After Edit: In a test app, I started with a single view template and a storyboard. I added two buttons to the top of the view and a container view to the bottom half of the view (this first controller is of class ViewController). I then dragged out a new view controller, and control dragged from the container view to the new controller and chose the “embed segue” (this will resize the view to be the same size as the container view). The class of this controller was changed to my subclass, ContainerController. I then created 2 more controllers for the 2 views that will be managed by the container controller (the views need to have their size set to “freeform” in IB so you can set the size to be the same as the container view). Here is the code in ContainerController:

- (void)viewDidLoad
{
    [super viewDidLoad];
    self.cont1 = [[FirstController alloc]initWithNibName:@"FirstView" bundle:nil];
    self.cont2 = [[SecondController alloc]initWithNibName:@"SecondController" bundle:nil];
    [self addChildViewController:self.cont1];
    self.currentController = self.cont1;
    [self.view addSubview:self.cont1.view];
}

-(void)switchToFirst {
    if (self.currentController != self.cont1) {
        [self addChildViewController:self.cont1];
        [self moveToNewController:self.cont1];
    }
}

-(void)switchToSecond {
    if (self.currentController != self.cont2) {
        [self addChildViewController:self.cont2];
        [self moveToNewController:self.cont2];
    }
}

-(void)moveToNewController:(id) newController {
    [self.currentController willMoveToParentViewController:nil];
    [self transitionFromViewController:self.currentController toViewController:newController duration:.6 options:UIViewAnimationOptionTransitionFlipFromLeft animations:^{}
                            completion:^(BOOL finished) {
                                [self.currentController removeFromParentViewController];
                                [newController didMoveToParentViewController:self];
                                self.currentController = newController;
                            }];
}

The only code I have in ViewController are the IBActions for the 2 buttons that switch the views. Those methods just call methods in the container controller:

-(IBAction)chooseFirstController:(id)sender {
    [self.childViewControllers.lastObject switchToFirst];
}

-(IBAction)chooseSecondController:(id)sender {
    [self.childViewControllers.lastObject switchToSecond];
}