artur-ios-dev

dataSource.supplementaryViewProvider = { collectionView, kind, indexPath -> UICollectionReusableView? in
    switch kind {
    case UICollectionView.elementKindSectionHeader:
        guard let headerView = collectionView.dequeueReusableSupplementaryView(ofKind: kind, withReuseIdentifier: "sampleHeaderIdentifier", for: indexPath) as? SampleCollectionReusableView else {
            fatalError("Header is not registered")
        }


        headerView.fill(with: "My Awesome Colours")
        return headerView

artur-ios-dev

let colors: [UIColor] = [
        .brown,
        .purple,
        .systemBlue,
        .systemRed,
        .systemGray,
        .systemPink
    ]

artur-ios-dev

...
let items = colors.shuffled()
snapshot.appendItems(items, toSection: 0)
dataSource.apply(snapshot, animatingDifferences: true)

artur-ios-dev

enum Section: CaseIterable {
    case firstSection
    case secondSection
}
...
var snapshot = NSDiffableDataSourceSnapshot<Section, UIColor>()
snapshot.appendSections(.firstSection)
snapshot.appendSections(.secondSection)
...
```

artur-ios-dev

var snapshot = NSDiffableDataSourceSnapshot<Int, UIColor>()
snapshot.appendSections([0])
snapshot.appendItems(items, toSection: 0)

artur-ios-dev

let dataSource = UICollectionViewDiffableDataSource<Int, UIColor>(collectionView: collectionView) { collectionView, indexPath, item in
    let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "sampleIdentifier", for: indexPath)
    cell.backgroundColor = item
    return cell
}

artur-ios-dev

//: A UIKit based Playground for presenting user interface
  
import UIKit
import PlaygroundSupport

final class SampleCollectionReusableView: UICollectionReusableView {
    private let titleLabel = UILabel()

    override init(frame: CGRect) {
        super.init(frame: frame)

artur-ios-dev

override var isHighlighted: Bool {
        didSet {
            UIView.animate(withDuration: 0.25, delay: 0, options: [.curveEaseInOut], animations: {
                if self.isHighlighted {
                    self.cardView.transform = CGAffineTransform(scaleX: 0.95, y: 0.95)
                } else {
                    self.cardView.transform = CGAffineTransform.identity
                }
            }, completion: nil)
        }

artur-ios-dev

struct SearchView: View {
    let array = "SwiftUI is great but some views might need an extra work".components(separatedBy: " ")

    @State private var searchText = ""

    var body: some View {
        VStack {
            SearchBar(text: $searchText)

            List {

artur-ios-dev

.gesture(DragGesture().onChanged { _ in
                UIApplication.shared.endEditing(true)
            })