hackiftekhar/IQKeyboardManager

//
//  CollectionViewDemoController.swift
//  https://github.com/hackiftekhar/IQKeyboardManager
//  Copyright (c) 2013-24 Iftekhar Qurashi.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.

import UIKit

class CollectionViewDemoController: BaseViewController, UICollectionViewDelegate, UICollectionViewDataSource {

    @IBOutlet var collectionView: UICollectionView!

    override func viewDidLoad() {
        super.viewDidLoad()

        do {
            let itemSize = NSCollectionLayoutSize(widthDimension: .fractionalWidth(1.0),
                                                 heightDimension: .fractionalHeight(1.0))

            let groupSize = NSCollectionLayoutSize(widthDimension: .fractionalWidth(1.0),
                                                  heightDimension: .absolute(50))

            let item = NSCollectionLayoutItem(layoutSize: itemSize)

            let group = NSCollectionLayoutGroup.horizontal(layoutSize: groupSize,
                                                           subitems: [item])

            let section: NSCollectionLayoutSection = NSCollectionLayoutSection(group: group)

            let configuration: UICollectionViewCompositionalLayoutConfiguration = .init()
            configuration.scrollDirection = .vertical

            collectionView.collectionViewLayout = UICollectionViewCompositionalLayout(section: section,
                                                                                      configuration: configuration)
        }
    }

    func collectionView(_ collectionView: UICollectionView,
                        numberOfItemsInSection section: Int) -> Int {
        return 15
    }

    func collectionView(_ collectionView: UICollectionView,
                        cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {

        let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "TextFieldCollectionViewCell",
                                                      for: indexPath)

        let textField = cell.viewWithTag(10) as? UITextField
        textField?.placeholder = "\(indexPath.section) \(indexPath.row)"

        return cell
    }
}