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[READ-ONLY] Mirror of https://github.com/mergesort/TableFlip. A simpler way to do cool UITableView animations! (╯°□°）╯︵ ┻━┻
animation ios uitableview
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4.3 kB · 146 lines
Swift
at main
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147//// TableViewController.swift// TableFlipExample//// Created by Joe Fabisevich on 8/27/17.// Copyright © 2017 Mergesort. All rights reserved.//
import UIKit
enum ExampleAnimation { case fade case top case left case custom case indexPaths}
final class TableViewController: UIViewController {
private let animation: ExampleAnimation
private let dataSource = ExampleDataSource() let tableView: UITableView = { let tableView = UITableView() tableView.rowHeight = 64.0 tableView.tableFooterView = UIView() return tableView }()
// MARK: Initializers
init(animation: ExampleAnimation) { self.animation = animation
super.init(nibName: nil, bundle: nil) }
@available(*, unavailable) required init?(coder aDecoder: NSCoder) { fatalError("Unimplemented, and loving it.") }
// MARK: Lifecycle
override func viewDidLoad() { super.viewDidLoad() self.setup() }
}
private extension TableViewController { func setup() { self.tableView.dataSource = self.dataSource
self.view.addSubview(self.tableView)
self.title = self.animation.title
self.setupConstraints()
// Delayed to simulate a network connection, like in the real world, which is where I live. DispatchQueue.main.asyncAfter(deadline: .now() + .milliseconds(500)) { self.dataSource.hasLoaded = true self.tableView.reloadData() self.animateTableView() } }
func setupConstraints() { self.tableView.translatesAutoresizingMaskIntoConstraints = false
NSLayoutConstraint.activate([ self.tableView.leadingAnchor.constraint(equalTo: self.view.leadingAnchor), self.tableView.trailingAnchor.constraint(equalTo: self.view.trailingAnchor), self.tableView.topAnchor.constraint(equalTo: self.view.topAnchor), self.tableView.bottomAnchor.constraint(equalTo: self.view.bottomAnchor), ]) } func animateTableView() { switch self.animation {
case .top: let topAnimation = TableViewAnimation.Table.top(duration: 0.8) self.tableView.animate(animation: topAnimation)
case .fade: let fadeAnimation = TableViewAnimation.Cell.fade(duration: 0.3) self.tableView.animate(animation: fadeAnimation)
case .left: let leftAnimation = TableViewAnimation.Cell.left() self.tableView.animate(animation: leftAnimation, indexPaths: nil, completion: nil)
case .custom: let degrees = sin(90.0 * CGFloat.pi/180.0) let rotationTransform = CGAffineTransform(rotationAngle: degrees) let flipTransform = CGAffineTransform(scaleX: -1, y: -1) let customTransform = rotationTransform.concatenating(flipTransform) let customAnimation = TableViewAnimation.Cell.custom(duration: 0.6, transform: customTransform, options: .curveEaseInOut)
self.tableView.animate(animation: customAnimation, completion: nil)
case .indexPaths: let groupedItems = Dictionary(grouping: (0..<self.dataSource.exampleItems.count), by: { $0 % 2 })
let oddIndices = groupedItems[1]?.compactMap { IndexPath(row: $0, section: 0) } let leftAnimation = TableViewAnimation.Cell.left() self.tableView.animate(animation: leftAnimation, indexPaths: oddIndices, completion: nil)
let evenIndices = groupedItems[0]?.compactMap { IndexPath(row: $0, section: 0) } let rightAnimation = TableViewAnimation.Cell.right() self.tableView.animate(animation: rightAnimation, indexPaths: evenIndices, completion: nil) } } }
private extension ExampleAnimation {
var title: String { switch self { case .custom: return "Custom Animation"
case .top: return "Top Animation"
case .left: return "Left Animation"
case .fade: return "Fade Animation"
case .indexPaths: return "Select Index Paths Animation" } }
}