zenangst

let familyController = FamilyViewController()
let viewController = UIViewController()

familyController.addChildViewController(viewController)

zenangst

let animationDuration: TimeInterval? = subviewsInLayoutOrder
  .flatMap({ $0.layer.resolveAnimationDuration }).first ?? duration

if let duration = animationDuration {
  let options: UIViewAnimationOptions = [.allowUserInteraction, .beginFromCurrentState]
  UIView.animate(withDuration: duration, delay: 0.0, options: options, animations: {
    self.runLayoutSubviewsAlgorithm()
  })
} else {
  runLayoutSubviewsAlgorithm()

zenangst

import UIKit

extension CALayer {
  /// Resolve animation duration of the first animation using animation keys.
  var resolveAnimationDuration: CFTimeInterval? {
    if let firstKey = animationKeys()?.first,
      let animation = animation(forKey: firstKey) {
      return animation.duration
    }

zenangst

let options: UIViewAnimationOptions = [.allowUserInteraction, .beginFromCurrentState]
UIView.animate(withDuration: 0.4, delay: 0.0, options: options, animations: {
  self.headerViewController.view.frame.size.height = 120
  self.contentViewController.view.frame.size.height = 320
  self.moreViewController.view.frame.size.height = 210
})

zenangst

let options: UIViewAnimationOptions = [.allowUserInteraction, .beginFromCurrentState]
UIView.animate(withDuration: 2.5, delay: 0.0, options: options, animations: {
  self.runLayoutSubviewsAlgorithm()
})

zenangst

let shouldAnimate = !(subviewsInLayoutOrder.flatMap{ $0.layer.animationKeys() }.isEmpty)

zenangst

// A Swift 4 version of https://gist.github.com/petergp/815ba3bf6b7280c2c01f
private class ImageView : UIImageView {
    private class Layer: CALayer {
        override func addSublayer(_ layer: CALayer) {
            defer { super.addSublayer(layer) }

            let cornerRadiusKey = "_cornerRadius"
            guard let configuration = layer.value(forKey: "_configuration") as? NSObject,
                configuration.responds(to: NSSelectorFromString(cornerRadiusKey)) else {
                return

zenangst

private func createRelatedComponents() -> [ComponentModel] {
    let infoComponent = ComponentModel(
      header: Item(title: "Star Wars films and television series", kind: Spots.Identifier.header),
      kind: .grid,
      layout: Layout(span: 1, inset: Inset(top: 0, left: 20, bottom: 30, right: 20)),
      items: [Item(text: "The Star Wars films include two complete trilogies: the original trilogy released between 1977 and 1983, and the prequel trilogy released between 1999 and 2005. A third trilogy that follows the first two began in 2015. Other films have taken or will take place between the trilogy films. There have also been several Star Wars television series and television movies, with the first being released in 1978.", kind: Spots.Identifier.info)]
    )

    let relatedComponent = ComponentModel(
      header: Item(title: "Related movies", kind: Spots.Identifier.header),

zenangst

import Spots

enum MainContentType: String {
  case details, reception, related
}

class ContentFactory {

  func sideComponents() -> [ComponentModel] {
    let posterComponent = ComponentModel(

zenangst

(lldb) bt
* thread #1: tid = 0x2276c8, 0x000000011265c75a libswiftFoundation.dylib`static Foundation.IndexPath._unconditionallyBridgeFromObjectiveC (Swift.Optional<__ObjC.NSIndexPath>) -> Foundation.IndexPath + 42, queue = 'com.apple.main-thread', stop reason = EXC_BAD_INSTRUCTION (code=EXC_I386_INVOP, subcode=0x0)
  * frame #0: 0x000000011265c75a libswiftFoundation.dylib`static Foundation.IndexPath._unconditionallyBridgeFromObjectiveC (Swift.Optional<__ObjC.NSIndexPath>) -> Foundation.IndexPath + 42
    frame #1: 0x000000010f7c1028 Spots`@objc Delegate.tableView(UITableView, didEndDisplaying : UITableViewCell, forRowAt : IndexPath) -> () + 88 at Delegate+iOS+Extensions.swift:0
    frame #2: 0x0000000110a43ba9 UIKit`-[UITableView _reuseTableViewCell:withIndexPath:didEndDisplaying:] + 294
    frame #3: 0x0000000110a3fca4 UIKit`-[UITableView _updateVisibleCellsNow:isRecursive:] + 2410
    frame #4: 0x0000000110a74f9f UIKit`-[UITableView _performWithCachedTraitCollection:] + 110
    frame #5: 0x0000000110a5bfc8