FUIFormCollectionViewController

@MainActor
open class FUIFormCollectionViewController : UICollectionViewController

When FUIListPickerCollectionViewCells are to be used in an application, the application’s implementation of UICollectionViewController that hosts these FUIListPickerCollectionViewCells must be a subclass of this FUIFormCollectionViewController. FUIFormCollectionViewController hides all the complexity and interactions for handling FUIListPickerCollectionViewCell.

The application’s implementation of the UICollectionViewController needs to only implement the following functions:

 class FormCollectionViewCellTestTVC: UICollectionViewController {
    override func viewDidLoad() {
        // MUST: Call viewDidLoad function of super class.
        super.viewDidLoad()

        // Register FUIFormCells that will be used
        self.collectionView.register(FUIListPickerCollectionViewCell.self, forCellWithReuseIdentifier: FUIListPickerCollectionViewCell.reuseIdentifier)
        ...
    }

    override func numberOfSections(in collectionView: UICollectionView) -> Int {
        // Return how many sections are in the collection
        return ...
    }

    override func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
        // Return number of items in each section
        return ...
    }

    override func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
        // Return the cell to be used at the IndexPath specified
        let cell = collectionView.dequeueReusableCell(withReuseIdentifier: FUIListPickerCollectionViewCell.reuseIdentifier, for: indexPath) as! FUIListPickerCollectionViewCell
        cell.keyName = "Pick One"
        cell.isEnabled = true
        // MARK:  implement onChangeHandler
        cell.onChangeHandler = { newValue in
            myObject.title = newValue
        }
        return cell
    }