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The table view controller lists locations for a user to choose and has a delegate protocol to send the location back to the master view controller. The map view controller holds a MKMapView to show the location passed to it by the master view controller. The aim is to have the root views of our child controllers appear in the view of the master view controller. Using Interface Builder drag two container views from the Xcode Object Library into the empty root view of the master view controller:.

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Interface Builder creates two placeholder container views connected to view controllers with an embed segue. After deleting these added view controllers control-drag from the top container view to the location table view controller and choose embed segue:. The next step is to setup some Auto Layout constraints for our container views. I have added both views to a vertical stack view pinned to the margins of the root view:. Note that when using Interface Builder to create container views you end up with an extra placeholder view that the root view of the child controller is then added to.

We use this in the viewDidLoad of the master view controller to get references to the children and set the delegate:. An alternate approach suggested by Cameron in the comments is to use prepare for segue: A quick side-track to show the table and map side-by-side in landscape.

Managing View Controllers With Container View Controllers

That needs a few lines of code in the master view controller to have viewWillTransition to size: Storyboards make it easy to setup static container views but what if you want to dynamically add and remove child view controllers? To see an example I will remove the container views and embed segues from the Storyboard and recreate the same setup in code. My MasterViewController now takes care of the stack view and lazily creates the two child view controllers from the Storyboard when first accessed details omitted for brevity:.

In the viewDidLoad method of the master view controller we set up the stack view and add the two child view controllers:.


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I will skip the setup of the stack view setting the axis, alignment and pinning to the margins. What is interesting are the steps to add a child view controller which I have collected into a small method:. Use Your Loaf.

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Too Many Responsibilities Take a look at this user interface. This is a great time to use container view controllers and split our app into a parent and two child view controllers: A parent master view controller manages the view hierarchy and communication between the child view controllers. A child table view controller handles the list of countries.

A child map view controller handles displaying a location. Using a Storyboard This is our starting Storyboard with a parent master view controller embedded in a navigation controller. Using Interface Builder drag two container views from the Xcode Object Library into the empty root view of the master view controller: After deleting these added view controllers control-drag from the top container view to the location table view controller and choose embed segue: Repeat this process for the lower container view and the map view controller.

Container View Controllers

Container View Constraints The next step is to setup some Auto Layout constraints for our container views. I have added both views to a vertical stack view pinned to the margins of the root view: The stack view has a fill equally distribution. Access parent view controller Copy link Quote reply.

How to access parent view controller from pages view controllers?

In child view controller self. I think it is incorrect maybe you haven't called didMove for each child view controller in your framework? As you discussed in I can try to use willMoveToPageMenuController , but that method is not called when you're initially loaded view controller e. This comment has been minimized. Sign in to view.

willMoveToParentViewController: - UIViewController | Apple Developer Documentation

It does here. L It doesn't call these delegate method because initial load is not considered as moving menu.


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It doesn't call these delegate method because initial load is not considered as moving menu. PagingMenuController pagingMenuController. Sorix closed this Oct 12, Sign up for free to subscribe to this conversation on GitHub.