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iOS Build a Restaurant Reviews App Authorization With Third Party Libraries Introduction

restaurant review

restaurant review app is not working with swift 4

2 Answers

Justin Coberly
Justin Coberly
16,929 Points

Are you using swift 4? This project was written in swift3. UIColor(colorLiteralRed....) was valid syntax. In swift 4 they updated it to just "red". This should fix the problem if you replace all of the warnings.

UIColor(red: 209/255.0, green: 47/255.0, blue: 27/255.0, alpha: 1.0)

perhaps you could provide some code

,,,import UIKit the error am getting is

--nit(colorLiteralRed:green:blue:alpha:)' is unavailable: This initializer is only meant to be used by color literals--

class YelpBusinessDetailController: UITableViewController {

@IBOutlet weak var restaurantNameLabel: UILabel!
@IBOutlet weak var priceLabel: UILabel!
@IBOutlet weak var ratingsCountLabel: UILabel!
@IBOutlet weak var categoriesLabel: UILabel!
@IBOutlet weak var hoursLabel: UILabel!
@IBOutlet weak var currentHoursStatusLabel: UILabel! {
    didSet {
        if currentHoursStatusLabel.text == "Open" {
            currentHoursStatusLabel.textColor = UIColor(colorLiteralRed: 2/255.0, green: 192/255.0, blue: 97/255.0, alpha: 1.0)
        } else {
            currentHoursStatusLabel.textColor = UIColor(colorLiteralRed: 209/255.0, green: 47/255.0, blue: 27/255.0, alpha: 1.0)

var business: YelpBusiness?

lazy var dataSource: YelpReviewsDataSource = {
    return YelpReviewsDataSource(data: [])

override func viewDidLoad() {


    if let business = business, let viewModel = YelpBusinessDetailViewModel(business: business) {
        configure(with: viewModel)

/// Configures the views in the table view's header view
/// - Parameter viewModel: View model representation of a YelpBusiness object
func configure(with viewModel: YelpBusinessDetailViewModel) {
    restaurantNameLabel.text = viewModel.restaurantName
    priceLabel.text = viewModel.price
    ratingsCountLabel.text = viewModel.ratingsCount
    categoriesLabel.text = viewModel.categories
    hoursLabel.text = viewModel.hours
    currentHoursStatusLabel.text = viewModel.currentStatus

// MARK: - Table View

func setupTableView() {
    tableView.dataSource = dataSource
    tableView.delegate = self

} ,,,