### Configure DiffableTableController Source: https://context7.com/sparrowcode/diffablekit/llms.txt Use DiffableTableController to simplify table view setup with automatic cell registration and declarative section definitions. ```swift import UIKit import DiffableKit class SettingsController: DiffableTableController { override func viewDidLoad() { super.viewDidLoad() configureDiffable( sections: [ DiffableSection( id: "appearance", header: DiffableTextHeaderFooter(text: "Appearance"), items: [ DiffableTableRow( text: "Theme", detail: "System", accessoryType: .disclosureIndicator, action: { item, indexPath in print("Selected theme at \(indexPath)") } ), DiffableTableRowSwitch( text: "Dark Mode", icon: UIImage(systemName: "moon.fill"), isOn: false, action: { isOn in print("Dark mode toggled: \(isOn)") } ) ] ) ], cellProviders: DiffableTableDataSource.CellProvider.default ) } } ``` -------------------------------- ### Setup and Data Configuration in DiffableTableController Source: https://context7.com/sparrowcode/diffablekit/llms.txt This snippet shows how to set up a DiffableTableController by configuring its data source with sections and items. It uses DiffableSection and DiffableTableRow to define the structure and content of the table view. ```swift import UIKit import DiffableKit class ItemLookupController: DiffableTableController { override func viewDidLoad() { super.viewDidLoad() setupData() } func setupData() { configureDiffable( sections: [ DiffableSection( id: "section-1", items: [ DiffableTableRow(id: "item-a", text: "Item A"), DiffableTableRow(id: "item-b", text: "Item B") ] ), DiffableSection( id: "section-2", items: [ DiffableTableRow(id: "item-c", text: "Item C") ] ) ], cellProviders: DiffableTableDataSource.CellProvider.default ) } func demonstrateLookups() { // Get item by ID if let item = diffableDataSource?.getItem(id: "item-a") { print("Found item: \(item.id)") } // Get item by index path let indexPath = IndexPath(row: 0, section: 0) if let item = diffableDataSource?.getItem(indexPath: indexPath) { print("Item at \(indexPath): \(item.id)") } // Get section by ID if let section = diffableDataSource?.getSection(id: "section-1") { print("Section has \(section.items.count) items") } // Get section by index if let section = diffableDataSource?.getSection(index: 1) { print("Second section: \(section.id)") } // Get index path for item ID if let path = diffableDataSource?.getIndexPath(id: "item-c") { print("item-c is at section \(path.section), row \(path.row)") } // Get index path for item object let row = DiffableTableRow(id: "item-b", text: "Item B") if let path = diffableDataSource?.getIndexPath(item: row) { print("item-b path: \(path)") } } } ``` -------------------------------- ### Implement Custom Cell Provider Source: https://context7.com/sparrowcode/diffablekit/llms.txt Extend `DiffableTableDataSource.CellProvider` to create a custom provider for your item type. This example, `colorCell`, configures a `UITableViewCell` to display the `ColorItem`'s name and a color swatch. ```swift // Custom cell provider extension DiffableTableDataSource.CellProvider { static var colorCell: DiffableTableDataSource.CellProvider { return DiffableTableDataSource.CellProvider { tableView, indexPath, item in guard let colorItem = item as? ColorItem else { return nil } let cell = tableView.dequeueReusableCell(withIdentifier: "ColorCell", for: indexPath) var content = cell.defaultContentConfiguration() content.text = colorItem.name // Create color swatch let size = CGSize(width: 24, height: 24) UIGraphicsBeginImageContextWithOptions(size, false, 0) colorItem.color.setFill() UIBezierPath(roundedRect: CGRect(origin: .zero, size: size), cornerRadius: 4).fill() content.image = UIGraphicsGetImageFromCurrentImageContext() UIGraphicsEndImageContext() cell.contentConfiguration = content return cell } } } ``` -------------------------------- ### Create a Dynamic DiffableSection Source: https://context7.com/sparrowcode/diffablekit/llms.txt Dynamically create sections based on state. This example shows how to conditionally add items to a section, such as notification preferences. ```swift import UIKit import DiffableKit // Section with dynamic items func createNotificationsSection(enabled: Bool) -> DiffableSection { var items: [DiffableItem] = [ DiffableTableRowSwitch( id: "notifications-toggle", text: "Enable Notifications", isOn: enabled, action: { isOn in // Handle toggle } ) ] // Conditionally add items based on state if enabled { items.append(DiffableTableRow( text: "Sound", detail: "Default", accessoryType: .disclosureIndicator )) items.append(DiffableTableRow( text: "Badge", detail: "On", accessoryType: .disclosureIndicator )) } return DiffableSection( id: "notifications", header: DiffableTextHeaderFooter(text: "Notifications"), items: items ) } ``` -------------------------------- ### Define Custom Item Type Source: https://context7.com/sparrowcode/diffablekit/llms.txt Create a custom item class that conforms to `DiffableItem` to represent your data. This example defines a `ColorItem` with color and name properties. ```swift import UIKit import DiffableKit // Custom item type class ColorItem: DiffableItem { let color: UIColor let name: String init(id: String, color: UIColor, name: String) { self.color = color self.name = name super.init(id: id) } } ``` -------------------------------- ### Integrate Custom Cell Provider in Controller Source: https://context7.com/sparrowcode/diffablekit/llms.txt In your `DiffableTableController`, register the cell identifier and combine your custom cell provider with default providers. This example shows how to configure the `ColorPaletteController` with `ColorItem`s and a default row. ```swift // Usage class ColorPaletteController: DiffableTableController { override func viewDidLoad() { super.viewDidLoad() tableView.register(UITableViewCell.self, forCellReuseIdentifier: "ColorCell") // Combine default providers with custom provider var providers = DiffableTableDataSource.CellProvider.default providers.insert(.colorCell, at: 0) configureDiffable( sections: [ DiffableSection( id: "colors", header: DiffableTextHeaderFooter(text: "Colors"), items: [ ColorItem(id: "red", color: .systemRed, name: "Red"), ColorItem(id: "blue", color: .systemBlue, name: "Blue"), ColorItem(id: "green", color: .systemGreen, name: "Green"), DiffableTableRow(text: "Custom", accessoryType: .disclosureIndicator) ] ) ], cellProviders: providers ) } } ``` -------------------------------- ### Implement DiffableCollectionSection in a Controller Source: https://context7.com/sparrowcode/diffablekit/llms.txt Demonstrates setting up a DiffableCollectionController with expandable sections and custom layout configurations. ```swift import UIKit import DiffableKit class OutlineController: DiffableCollectionController { var expandedSections: Set = ["section-1"] override func viewDidLoad() { super.viewDidLoad() collectionView.collectionViewLayout = createOutlineLayout() collectionView.register(UICollectionViewListCell.self, forCellWithReuseIdentifier: "Cell") let cellProvider = DiffableCollectionDataSource.CellProvider { collectionView, indexPath, item in let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "Cell", for: indexPath) as! UICollectionViewListCell var content = cell.defaultContentConfiguration() content.text = item.id cell.contentConfiguration = content return cell } updateSections() configureDiffable( sections: createSections(), cellProviders: [cellProvider] ) } func createSections() -> [DiffableSection] { return [ DiffableCollectionSection( id: "section-1", header: DiffableTextHeaderFooter(text: "Favorites"), headerAsFirstCell: true, items: [ DiffableItem(id: "Item A"), DiffableItem(id: "Item B") ], expanded: expandedSections.contains("section-1") ), DiffableCollectionSection( id: "section-2", header: DiffableTextHeaderFooter(text: "Recent"), headerAsFirstCell: true, items: [ DiffableItem(id: "Item C"), DiffableItem(id: "Item D") ], expanded: expandedSections.contains("section-2") ) ] } func toggleSection(_ sectionId: String) { if expandedSections.contains(sectionId) { expandedSections.remove(sectionId) } else { expandedSections.insert(sectionId) } diffableDataSource?.set(createSections(), animated: true) } func createOutlineLayout() -> UICollectionViewLayout { var config = UICollectionLayoutListConfiguration(appearance: .insetGrouped) config.headerMode = .none return UICollectionViewCompositionalLayout.list(using: config) } func updateSections() { // Refresh sections based on expanded state } } ``` -------------------------------- ### Create DiffableTableRowSwitch for Settings Source: https://context7.com/sparrowcode/diffablekit/llms.txt Implement toggle switches for settings using DiffableTableRowSwitch. This model includes an `isOn` state and an action closure to handle changes. ```swift import UIKit import DiffableKit class NotificationSettings { var pushEnabled = true var soundEnabled = true var badgeEnabled = false func createSwitchRows() -> [DiffableItem] { return [ DiffableTableRowSwitch( id: "push-notifications", text: "Push Notifications", icon: UIImage(systemName: "bell.fill"), isOn: pushEnabled, action: { [weak self] isOn in self?.pushEnabled = isOn self?.saveSettings() } ), DiffableTableRowSwitch( id: "sound", text: "Sound", icon: UIImage(systemName: "speaker.wave.2.fill"), isOn: soundEnabled, action: { [weak self] isOn in self?.soundEnabled = isOn } ), DiffableTableRowSwitch( id: "badge", text: "Badge", icon: UIImage(systemName: "app.badge.fill"), isOn: badgeEnabled, action: { [weak self] isOn in self?.badgeEnabled = isOn } ) ] } func saveSettings() { // Persist settings } } ``` -------------------------------- ### Configure a Settings Controller with DiffableKit Source: https://github.com/sparrowcode/diffablekit/blob/main/README.md Use DiffableTableController to define sections and rows declaratively. The cellProviders parameter handles the default cell configuration. ```swift class SettingsController: DiffableTableController { override func viewDidLoad() { super.viewDidLoad() configureDiffable( sections: [ DiffableSection( id: "general", header: DiffableTextHeaderFooter(text: "General"), items: [ DiffableTableRow(text: "Theme", detail: "System", accessoryType: .disclosureIndicator) ] ) ], cellProviders: DiffableTableDataSource.CellProvider.default ) } } ``` -------------------------------- ### Configure Diffable Collection View with Custom Layout Source: https://context7.com/sparrowcode/diffablekit/llms.txt This snippet demonstrates how to subclass DiffableCollectionController to configure a collection view with a custom compositional layout and a diffable data source. It includes setting up the layout, registering cells, and providing a custom cell provider for displaying items. ```swift import UIKit import DiffableKit class GalleryController: DiffableCollectionController { override func viewDidLoad() { super.viewDidLoad() // Configure collection view layout collectionView.collectionViewLayout = createLayout() collectionView.register(UICollectionViewCell.self, forCellWithReuseIdentifier: "ImageCell") // Custom cell provider let imageProvider = DiffableCollectionDataSource.CellProvider { collectionView, indexPath, item in guard let wrapper = item as? DiffableWrapperItem, let imageName = wrapper.model as? String else { return nil } let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "ImageCell", for: indexPath) cell.contentView.backgroundColor = .systemGray5 let imageView = UIImageView(image: UIImage(systemName: imageName)) imageView.contentMode = .scaleAspectFit imageView.frame = cell.contentView.bounds imageView.autoresizingMask = [.flexibleWidth, .flexibleHeight] cell.contentView.subviews.forEach { $0.removeFromSuperview() } cell.contentView.addSubview(imageView) return cell } configureDiffable( sections: [ DiffableSection(id: "photos", items: [ DiffableWrapperItem(id: "1", model: "photo"), DiffableWrapperItem(id: "2", model: "photo.fill"), DiffableWrapperItem(id: "3", model: "photo.circle") ]) ], cellProviders: [imageProvider]) } func createLayout() -> UICollectionViewLayout { let itemSize = NSCollectionLayoutSize(widthDimension: .fractionalWidth(0.33), heightDimension: .fractionalHeight(1.0)) let item = NSCollectionLayoutItem(layoutSize: itemSize) item.contentInsets = NSDirectionalEdgeInsets(top: 4, leading: 4, bottom: 4, trailing: 4) let groupSize = NSCollectionLayoutSize(widthDimension: .fractionalWidth(1.0), heightDimension: .fractionalWidth(0.33)) let group = NSCollectionLayoutGroup.horizontal(layoutSize: groupSize, subitems: [item]) let section = NSCollectionLayoutSection(group: group) return UICollectionViewCompositionalLayout(section: section) } } ``` -------------------------------- ### Use DiffableWrapperItem for Custom Models Source: https://context7.com/sparrowcode/diffablekit/llms.txt Wraps custom model objects to be compatible with the diffable data source. ```swift import UIKit import DiffableKit struct Product { let sku: String let name: String let price: Double } class ProductListController: DiffableTableController { let products = [ Product(sku: "ABC123", name: "Widget", price: 9.99), Product(sku: "DEF456", name: "Gadget", price: 19.99) ] override func viewDidLoad() { super.viewDidLoad() // Custom cell provider for Product model let productProvider = DiffableTableDataSource.CellProvider { tableView, indexPath, item in guard let wrapper = item as? DiffableWrapperItem, let product = wrapper.model as? Product else { return nil } let cell = tableView.dequeueReusableCell(withIdentifier: "ProductCell", for: indexPath) var content = cell.defaultContentConfiguration() content.text = product.name content.secondaryText = String(format: "$%.2f", product.price) cell.contentConfiguration = content return cell } tableView.register(UITableViewCell.self, forCellReuseIdentifier: "ProductCell") configureDiffable( sections: [ DiffableSection( id: "products", items: products.map { product in DiffableWrapperItem( id: product.sku, model: product, action: { item, indexPath in print("Selected product: \(product.name)") } ) } ) ], cellProviders: [productProvider] ) } } ``` -------------------------------- ### Create a Basic DiffableTableRow Source: https://context7.com/sparrowcode/diffablekit/llms.txt Define a standard table row with text, detail text, an icon, and an accessory type. Actions can be provided for row taps. ```swift import UIKit import DiffableKit // Basic row with disclosure indicator let profileRow = DiffableTableRow( text: "Profile", detail: "John Doe", icon: UIImage(systemName: "person.circle"), accessoryType: .disclosureIndicator, action: { item, indexPath in // Navigate to profile screen } ) ``` -------------------------------- ### Display Subtitle Information with DiffableTableRowSubtitle Source: https://context7.com/sparrowcode/diffablekit/llms.txt Implement `DiffableTableRowSubtitle` to display a main text label and a secondary subtitle below it, suitable for contact lists or detailed item displays. An optional icon and accessory type can be configured. ```swift import UIKit import DiffableKit struct Contact { let name: String let email: String let avatarName: String } class ContactsController: DiffableTableController { let contacts = [ Contact(name: "Alice Smith", email: "alice@example.com", avatarName: "person.circle"), Contact(name: "Bob Johnson", email: "bob@example.com", avatarName: "person.circle.fill") ] override func viewDidLoad() { super.viewDidLoad() configureDiffable( sections: [ DiffableSection( id: "contacts", header: DiffableTextHeaderFooter(text: "Contacts"), items: contacts.map { contact in DiffableTableRowSubtitle( id: contact.email, text: contact.name, subtitle: contact.email, icon: UIImage(systemName: contact.avatarName), accessoryType: .disclosureIndicator, action: { item, indexPath in print("Selected: \(contact.name)") } ) } ) ], cellProviders: DiffableTableDataSource.CellProvider.default ) } } ``` -------------------------------- ### Implement DiffableTableDelegate for Table Interactions Source: https://context7.com/sparrowcode/diffablekit/llms.txt Handles selection, swipe actions, and context menus within a DiffableTableController. ```swift import UIKit import DiffableKit class TaskListController: DiffableTableController, DiffableTableDelegate { override func viewDidLoad() { super.viewDidLoad() diffableDataSource?.diffableDelegate = self loadTasks() } func loadTasks() { configureDiffable( sections: [ DiffableSection( id: "tasks", items: [ DiffableTableRow(id: "task-1", text: "Complete report"), DiffableTableRow(id: "task-2", text: "Review PR"), DiffableTableRow(id: "task-3", text: "Update docs") ] ) ], cellProviders: DiffableTableDataSource.CellProvider.default ) } // MARK: - DiffableTableDelegate func diffableTableView(_ tableView: UITableView, didSelectItem item: DiffableItem, indexPath: IndexPath) { tableView.deselectRow(at: indexPath, animated: true) print("Selected item: \(item.id)") } func diffableTableView(_ tableView: UITableView, trailingSwipeActionsConfigurationForItem item: DiffableItem, at indexPath: IndexPath) -> UISwipeActionsConfiguration? { let deleteAction = UIContextualAction(style: .destructive, title: "Delete") { [weak self] _, _, completion in self?.deleteTask(id: item.id) completion(true) } return UISwipeActionsConfiguration(actions: [deleteAction]) } func diffableTableView(_ tableView: UITableView, contextMenuConfigurationForItem item: DiffableItem, at indexPath: IndexPath, point: CGPoint) -> UIContextMenuConfiguration? { return UIContextMenuConfiguration(identifier: nil, previewProvider: nil) { _ in let editAction = UIAction(title: "Edit", image: UIImage(systemName: "pencil")) { _ in print("Edit \(item.id)") } let shareAction = UIAction(title: "Share", image: UIImage(systemName: "square.and.arrow.up")) { _ in print("Share \(item.id)") } return UIMenu(children: [editAction, shareAction]) } } func deleteTask(id: String) { // Remove task and update UI } } ``` -------------------------------- ### Create Tappable Buttons with DiffableTableRowButton Source: https://context7.com/sparrowcode/diffablekit/llms.txt Utilize `DiffableTableRowButton` for rows that act as tappable buttons. Each button can have text, an icon, and an optional detail text. The `action` closure is executed when the button is tapped. ```swift import UIKit import DiffableKit class AccountController: DiffableTableController { override func viewDidLoad() { super.viewDidLoad() configureDiffable( sections: [ DiffableSection( id: "actions", items: [ DiffableTableRowButton( id: "sign-out", text: "Sign Out", icon: UIImage(systemName: "rectangle.portrait.and.arrow.right"), action: { [weak self] indexPath in self?.showSignOutConfirmation() } ), DiffableTableRowButton( id: "delete-account", text: "Delete Account", detail: "This action cannot be undone", icon: UIImage(systemName: "trash.fill"), action: { [weak self] indexPath in self?.showDeleteConfirmation() } ) ] ) ], cellProviders: DiffableTableDataSource.CellProvider.default ) } func showSignOutConfirmation() { // Present confirmation alert } func showDeleteConfirmation() { // Present destructive confirmation } } ``` -------------------------------- ### Manage Data with DiffableTableDataSource Source: https://context7.com/sparrowcode/diffablekit/llms.txt Use DiffableTableDataSource to manually manage snapshots, cell providers, and perform animated updates or reconfigurations. ```swift import UIKit import DiffableKit class CustomTableViewController: UITableViewController { var dataSource: DiffableTableDataSource? override func viewDidLoad() { super.viewDidLoad() // Register cells tableView.register(DiffableTableViewCell.self, forCellReuseIdentifier: DiffableTableViewCell.reuseIdentifier) tableView.register(DiffableSubtitleTableViewCell.self, forCellReuseIdentifier: DiffableSubtitleTableViewCell.reuseIdentifier) tableView.register(DiffableButtonTableViewCell.self, forCellReuseIdentifier: DiffableButtonTableViewCell.reuseIdentifier) // Initialize data source with cell providers dataSource = DiffableTableDataSource( tableView: tableView, cellProviders: DiffableTableDataSource.CellProvider.default, headerFooterProviders: [] ) // Apply initial data dataSource?.set([ DiffableSection( id: "main", items: [ DiffableTableRow(text: "Item 1", detail: "Detail 1"), DiffableTableRow(text: "Item 2", detail: "Detail 2") ] ) ], animated: false) } func updateContent() { // Calling set() automatically diffs and animates changes dataSource?.set([ DiffableSection( id: "main", items: [ DiffableTableRow(text: "Item 1", detail: "Updated Detail"), DiffableTableRow(text: "Item 3", detail: "New Item") ] ) ], animated: true) { print("Animation completed") } } func reconfigureWithoutAnimation() { // Update cell contents without structural changes let updatedItem = DiffableTableRow(id: "Item 1", text: "Item 1", detail: "Reconfigured") dataSource?.reconfigure([updatedItem], animated: false) } } ``` -------------------------------- ### Implement Numeric Value Adjustment with DiffableTableRowStepper Source: https://context7.com/sparrowcode/diffablekit/llms.txt Use `DiffableTableRowStepper` to create a row with an integrated UIStepper for adjusting numeric values. The `action` closure is called with the new value when the stepper changes. ```swift import UIKit import DiffableKit class QuantityController: DiffableTableController { var quantity: Double = 1 override func viewDidLoad() { super.viewDidLoad() updateUI() } func updateUI() { configureDiffable( sections: [ DiffableSection( id: "quantity", header: DiffableTextHeaderFooter(text: "Quantity"), items: [ DiffableTableRowStepper( id: "item-quantity", text: "Items: \(Int(quantity))", icon: UIImage(systemName: "cart.fill"), stepValue: 1, value: quantity, minimumValue: 1, maximumValue: 99, action: { [weak self] newValue in self?.quantity = newValue self?.updateUI() } ) ] ) ], cellProviders: DiffableTableDataSource.CellProvider.default ) } } ``` -------------------------------- ### Create a Basic DiffableSection Source: https://context7.com/sparrowcode/diffablekit/llms.txt Use DiffableSection to group items with optional header and footer views. This is useful for organizing content within a table view. ```swift import UIKit import DiffableKit // Basic section with header and items let generalSection = DiffableSection( id: "general", header: DiffableTextHeaderFooter(text: "General"), footer: DiffableTextHeaderFooter(text: "Configure general app settings"), items: [ DiffableTableRow(text: "Language", detail: "English"), DiffableTableRow(text: "Region", detail: "United States") ] ) ``` -------------------------------- ### Create a Non-Interactive DiffableTableRow Source: https://context7.com/sparrowcode/diffablekit/llms.txt Create a row that is not selectable by setting its selection style to .none. This is suitable for displaying static information. ```swift import UIKit import DiffableKit // Row without action (non-interactive display) let versionRow = DiffableTableRow( id: "version", text: "Version", detail: "1.0.0", selectionStyle: .none ) ``` -------------------------------- ### Create a DiffableTableRow with Custom ID Source: https://context7.com/sparrowcode/diffablekit/llms.txt Assign a unique ID to a row for easier identification and retrieval. This is useful when you need to reference specific rows programmatically. ```swift import UIKit import DiffableKit // Row with custom ID for lookup let accountRow = DiffableTableRow( id: "account-settings", text: "Account", detail: "user@example.com", icon: UIImage(systemName: "gear"), accessoryType: .disclosureIndicator, selectionStyle: .default, action: { item, indexPath in print("Account tapped") } ) ``` === COMPLETE CONTENT === This response contains all available snippets from this library. No additional content exists. 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