// // Copyright (c) 2018 Loverde Co. // // 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 Foundation import UIKit #if os(iOS) || os(macOS) //MARK: - UITableView Animation Cell public typealias UITableViewCellAnimation = (UITableViewCell, IndexPath, UITableView) -> Void public class UITableViewAnimator { private let animation: UITableViewCellAnimation public init(animation: @escaping UITableViewCellAnimation) { self.animation = animation } public func animate(cell: UITableViewCell, at indexPath: IndexPath, in tableView: UITableView) { animation(cell, indexPath, tableView) } } public extension UITableView { /// Reload data with a completion handler. /// /// - Parameter completion: completion handler to run after reloadData finishes. func reloadData(_ completion: @escaping () -> Void) { UIView.animate(withDuration: 0, animations: { self.reloadData() }, completion: { _ in completion() }) } /// Loverde Co.: Animate cell to up with fade - See file example to know how to use /// func makeMoveUpWithFadeAnimation(rowHeight: CGFloat, duration: TimeInterval, delayFactor: TimeInterval) -> UITableViewCellAnimation { return { cell, indexPath, _ in cell.transform = CGAffineTransform(translationX: 0, y: rowHeight * 1.4) cell.alpha = 0 UIView.animate( withDuration: duration, delay: delayFactor * Double(indexPath.row), options: [.curveEaseInOut], animations: { cell.transform = CGAffineTransform(translationX: 0, y: 0) cell.alpha = 1 }) } } /// Dequeue reusable UITableViewCell using class name /// /// - Parameter name: UITableViewCell type /// - Returns: UITableViewCell object with associated class name. func dequeueReusableCell(withClass name: T.Type) -> T { guard let cell = dequeueReusableCell(withIdentifier: String(describing: name)) as? T else { fatalError("Couldn't find UITableViewCell for \(String(describing: name)), make sure the cell is registered with table view") } return cell } /// Dequeue reusable UITableViewCell using class name for indexPath /// /// - Parameters: /// - name: UITableViewCell type. /// - indexPath: location of cell in tableView. /// - Returns: UITableViewCell object with associated class name. func dequeueReusableCell(withClass name: T.Type, for indexPath: IndexPath) -> T { guard let cell = dequeueReusableCell(withIdentifier: String(describing: name), for: indexPath) as? T else { fatalError("Couldn't find UITableViewCell for \(String(describing: name)), make sure the cell is registered with table view") } return cell } /// Dequeue reusable UITableViewHeaderFooterView using class name /// /// - Parameter name: UITableViewHeaderFooterView type /// - Returns: UITableViewHeaderFooterView object with associated class name. func dequeueReusableHeaderFooterView(withClass name: T.Type) -> T { guard let headerFooterView = dequeueReusableHeaderFooterView(withIdentifier: String(describing: name)) as? T else { fatalError("Couldn't find UITableViewHeaderFooterView for \(String(describing: name)), make sure the view is registered with table view") } return headerFooterView } func dequeueCell(indexPath: IndexPath) -> T { guard let cell = self.dequeueReusableCell(withIdentifier: T.identifier, for: indexPath) as? T else { fatalError("Couldn't find UITableViewCell for \(String(describing: T.className)), make sure the view is registered with table view") } return cell } /// Check whether IndexPath is valid within the tableView /// /// - Parameter indexPath: An IndexPath to check /// - Returns: Boolean value for valid or invalid IndexPath func isValidIndexPath(_ indexPath: IndexPath) -> Bool { return indexPath.section >= 0 && indexPath.row >= 0 && indexPath.section < numberOfSections && indexPath.row < numberOfRows(inSection: indexPath.section) } /// Safely scroll to possibly invalid IndexPath /// /// - Parameters: /// - indexPath: Target IndexPath to scroll to /// - scrollPosition: Scroll position /// - animated: Whether to animate or not func safeScrollToRow(at indexPath: IndexPath, at scrollPosition: UITableView.ScrollPosition, animated: Bool) { guard indexPath.section < numberOfSections else { return } guard indexPath.row < numberOfRows(inSection: indexPath.section) else { return } scrollToRow(at: indexPath, at: scrollPosition, animated: animated) } } extension UITableViewCell { public static var identifier: String { return "id"+String(describing: self) } public func prepareDisclosureIndicator() { for case let button as UIButton in subviews { let image = button.backgroundImage(for: .normal)?.withRenderingMode(.alwaysTemplate) button.setBackgroundImage(image, for: .normal) } } } #endif