CODEWITHSUNDEEP
iosobjective-cxcodemacosstoryboard
Harold Washington
Harold Washington

Reputation: 23

OS X: Scene is unreachable due to lack of entry points

This question may have been asked similarly relating to iOS, but not OS X. I've been struggling for three days to simply try and embed an NSView or NSViewController within an NSView using storyboards.

This works fine using a .xib or .nib: (when the next button is pushed it displays either customView1 or customView2 within the Container View.

nib example

Trying to use a storyboard it does not work. In fact I have no concept or clue on how to connect, embed, call, summons, or beg customView1 or customView2 to get itself inside Container View.

storyboard example

It seems I cannot access anything outside of it's own View Controller!?!

Example of properly working functionality (from .nib):

example

Upvotes: 2

Views: 4079

Answers (1)

Darren
Darren

Reputation: 25619

Here's one way to do it.

You can add two "Container View" objects to your main view controller, as top level objects, and connect them to NSView outlets in your controller. This will automatically create two new view controller scenes, with Embed segues from the container view to the child view controller.

Interface Builder

Your view controller now has references to two inner NSViews and you can manipulate them as you wish.

If you need a reference to the child view controllers, assign a storyboard identifier to each Embed segue and implement -prepareForSegue:sender:

- (void)prepareForSegue:(NSStoryboardSegue*)segue sender:(id)sender
{
    if ([segue.identifier isEqual:@"Embed1"])
    {
        _innerController1 = segue.destinationController;
    }
    else if ([segue.identifier isEqual:@"Embed2"])
    {
        _innerController2 = segue.destinationController;
    }
}

Alternatively to segues, you can assign a storyboard identifier to each of your inner view controllers, and instantiate them in code from the storyboard:

_innerController1 = [self.storyboard instantiateControllerWithIdentifier:@"InnerController1"];

You're also free to mix Storyboards and NIBs, so you can design your inner views in a separate NIB and instantiate them in code.

Upvotes: 2

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