Passing Data to view controllers that are embedded in container views

Question

I have view controllers that just need to get passed a NSDictionary called \"otherUser\". I am using a segmented controller to conveniently present 4 of these views to a use

Answer 1

In your Storyboard, when you embed a VC in a ContainerView, you also see a "segue" connecter. When the root VC loads, you will get a call to prepare for segue for that.

Give each storyboard-created segue an Identifier - such as "infoViewEmbedSegue", "feedViewEmbedSegue", etc.

In your root VC, I'm guessing that

var infos: BusinessProfilesDetails!
var feeds: BusinessProfilePostsFeed!

are variables to reference the content of infoView? If so, in prepare() you want to:

override func prepare(for segue: UIStoryboardSegue, sender: Any?) {

    // get a reference to the embedded PageViewController on load

    if let vc = segue.destination as? BusinessProfilesDetails,
        segue.identifier == "infoViewEmbedSegue" {
        self.infos = vc
        // if you already have your data object
        self.infos.otherUser = theDataDict
    }

    if let vc = segue.destination as? BusinessProfilePostsFeed,
        segue.identifier == "feedViewEmbedSegue" {
        self.feeds = vc
        // if you already have your data object
        self.feeds.otherUser = theDataDict
    }

    // etc

}

Now you'll have persistent references to the actual View Controllers embedded in your Container Views, in case you want access to them in other parts of your root VC, e.g.:

@IBAction func btnTapped(_ sender: Any) {
    self.feeds.otherUser = theDataDict
}