VideCell.swift

!codebreak !syntax-highlight import UIKit class Video: NSObject { var thumbnailImageName: String? var title: String? var numberOfViews: NSNumber? var uploadDate: NSDate? var channel: Channel? } class Channel: NSObject { var name: String? var profileImageName: String? } !codebreak

VideoCell.swift

!codebreak !syntax-highlight class VideoCell: BaseCell { var video: Video? { didSet { titleLabel.text = video?.title thumbnailImageView.image = UIImage(named: (video?.thumbnailImageName)!) if let profileImageName = video?.channel?.profileImageName { userProfileImageView.image = UIImage(named: profileImageName) } if let channelName = video?.channel?.name, numberOfViews = video?.numberOfViews { let numberFormatter = NSNumberFormatter() numberFormatter.numberStyle = .DecimalStyle let subtitleText = "\(channelName) • \(numberFormatter.stringFromNumber(numberOfViews)!) • 2 years ago " subtitleTextView.text = subtitleText } //measure title text if let title = video?.title { let size = CGSizeMake(frame.width - 16 - 44 - 8 - 16, 1000) let options = NSStringDrawingOptions.UsesFontLeading.union(.UsesLineFragmentOrigin) let estimatedRect = NSString(string: title).boundingRectWithSize(size, options: options, attributes: [NSFontAttributeName: UIFont.systemFontOfSize(14)], context: nil) if estimatedRect.size.height > 20 { titleLabelHeightConstraint?.constant = 44 } else { titleLabelHeightConstraint?.constant = 20 } } } } let thumbnailImageView: UIImageView = { let imageView = UIImageView() imageView.image = UIImage(named: "taylor_swift_blank_space") imageView.contentMode = .ScaleAspectFill imageView.clipsToBounds = true return imageView }() let userProfileImageView: UIImageView = { let imageView = UIImageView() imageView.image = UIImage(named: "taylor_swift_profile") imageView.layer.cornerRadius = 22 imageView.layer.masksToBounds = true return imageView }() let separatorView: UIView = { let view = UIView() view.backgroundColor = UIColor(red: 230/255, green: 230/255, blue: 230/255, alpha: 1) return view }() let titleLabel: UILabel = { let label = UILabel() label.translatesAutoresizingMaskIntoConstraints = false label.text = "Taylor Swift - Blank Space" label.numberOfLines = 2 return label }() let subtitleTextView: UITextView = { let textView = UITextView() textView.translatesAutoresizingMaskIntoConstraints = false textView.text = "TaylorSwiftVEVO • 1,604,684,607 views • 2 years ago" textView.textContainerInset = UIEdgeInsetsMake(0, -4, 0, 0) textView.textColor = UIColor.lightGrayColor() return textView }() var titleLabelHeightConstraint: NSLayoutConstraint? override func setupViews() { addSubview(thumbnailImageView) addSubview(separatorView) addSubview(userProfileImageView) addSubview(titleLabel) addSubview(subtitleTextView) addConstraintsWithFormat("H:|-16-[v0]-16-|", views: thumbnailImageView) addConstraintsWithFormat("H:|-16-[v0(44)]", views: userProfileImageView) //vertical constraints addConstraintsWithFormat("V:|-16-[v0]-8-[v1(44)]-36-[v2(1)]|", views: thumbnailImageView, userProfileImageView, separatorView) addConstraintsWithFormat("H:|[v0]|", views: separatorView) //top constraint addConstraint(NSLayoutConstraint(item: titleLabel, attribute: .Top, relatedBy: .Equal, toItem: thumbnailImageView, attribute: .Bottom, multiplier: 1, constant: 8)) //left constraint addConstraint(NSLayoutConstraint(item: titleLabel, attribute: .Left, relatedBy: .Equal, toItem: userProfileImageView, attribute: .Right, multiplier: 1, constant: 8)) //right constraint addConstraint(NSLayoutConstraint(item: titleLabel, attribute: .Right, relatedBy: .Equal, toItem: thumbnailImageView, attribute: .Right, multiplier: 1, constant: 0)) //height constraint titleLabelHeightConstraint = NSLayoutConstraint(item: titleLabel, attribute: .Height, relatedBy: .Equal, toItem: self, attribute: .Height, multiplier: 0, constant: 44) addConstraint(titleLabelHeightConstraint!) //top constraint addConstraint(NSLayoutConstraint(item: subtitleTextView, attribute: .Top, relatedBy: .Equal, toItem: titleLabel, attribute: .Bottom, multiplier: 1, constant: 4)) //left constraint addConstraint(NSLayoutConstraint(item: subtitleTextView, attribute: .Left, relatedBy: .Equal, toItem: userProfileImageView, attribute: .Right, multiplier: 1, constant: 8)) //right constraint addConstraint(NSLayoutConstraint(item: subtitleTextView, attribute: .Right, relatedBy: .Equal, toItem: thumbnailImageView, attribute: .Right, multiplier: 1, constant: 0)) //height constraint addConstraint(NSLayoutConstraint(item: subtitleTextView, attribute: .Height, relatedBy: .Equal, toItem: self, attribute: .Height, multiplier: 0, constant: 30)) } } !codebreak

HomeController.swift

!codebreak !syntax-highlight class HomeController: UICollectionViewController, UICollectionViewDelegateFlowLayout { var videos: [Video] = { var kanyeChannel = Channel() kanyeChannel.name = "KanyeIsTheBestChannel" kanyeChannel.profileImageName = "kanye_profile" var blankSpaceVideo = Video() blankSpaceVideo.title = "Taylor Swift - Blank Space" blankSpaceVideo.thumbnailImageName = "taylor_swift_blank_space" blankSpaceVideo.channel = kanyeChannel blankSpaceVideo.numberOfViews = 23932843093 var badBloodVideo = Video() badBloodVideo.title = "Taylor Swift - Bad Blood featuring Kendrick Lamar" badBloodVideo.thumbnailImageName = "taylor_swift_bad_blood" badBloodVideo.channel = kanyeChannel badBloodVideo.numberOfViews = 57989654934 return [blankSpaceVideo, badBloodVideo] }() override func viewDidLoad() { super.viewDidLoad() navigationItem.title = "Home" navigationController?.navigationBar.translucent = false let titleLabel = UILabel(frame: CGRectMake(0, 0, view.frame.width - 32, view.frame.height)) titleLabel.text = "Home" titleLabel.textColor = UIColor.whiteColor() titleLabel.font = UIFont.systemFontOfSize(20) navigationItem.titleView = titleLabel collectionView?.backgroundColor = UIColor.whiteColor() collectionView?.registerClass(VideoCell.self, forCellWithReuseIdentifier: "cellId") collectionView?.contentInset = UIEdgeInsetsMake(50, 0, 0, 0) collectionView?.scrollIndicatorInsets = UIEdgeInsetsMake(50, 0, 0, 0) setupMenuBar() setupNavBarButtons() } func setupNavBarButtons() { let searchImage = UIImage(named: "search_icon")?.imageWithRenderingMode(.AlwaysOriginal) let searchBarButtonItem = UIBarButtonItem(image: searchImage, style: .Plain, target: self, action: #selector(handleSearch)) let moreButton = UIBarButtonItem(image: UIImage(named: "nav_more_icon")?.imageWithRenderingMode(.AlwaysOriginal), style: .Plain, target: self, action: #selector(handleMore)) navigationItem.rightBarButtonItems = [moreButton, searchBarButtonItem] } func handleMore() { } func handleSearch() { print(123) } let menuBar: MenuBar = { let mb = MenuBar() return mb }() private func setupMenuBar() { view.addSubview(menuBar) view.addConstraintsWithFormat("H:|[v0]|", views: menuBar) view.addConstraintsWithFormat("V:|[v0(50)]", views: menuBar) } override func collectionView(collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int { return videos.count } override func collectionView(collectionView: UICollectionView, cellForItemAtIndexPath indexPath: NSIndexPath) -> UICollectionViewCell { let cell = collectionView.dequeueReusableCellWithReuseIdentifier("cellId", forIndexPath: indexPath) as! VideoCell cell.video = videos[indexPath.item] return cell } func collectionView(collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAtIndexPath indexPath: NSIndexPath) -> CGSize { let height = (view.frame.width - 16 - 16) * 9 / 16 return CGSizeMake(view.frame.width, height + 16 + 88) } func collectionView(collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, minimumLineSpacingForSectionAtIndex section: Int) -> CGFloat { return 0 } }