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Handling User Selection
AppStore JSON APIs
Another rather tricky aspect of this app is to correctly capture what the user is doing within these nested UICollectionView components. In today's lesson, we'll implement a simple event that can be captured every time an app is selected. To make this process super simple, we can use NotificationCenter use post notifications from our views. Finally, our app needs to listen to these events and react appropriately by pushing a new view controller onto the screen.

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