So far so good.

Hello, I don't understand, why do we use the optional "var companiesController: CompaniesController?" instead of an instance like "var companiesController = CompaniesController( )" ? I've tried to use an instance and I had a problem with the number of row. But I still doesn't understand how it works. Thanks

Hello, I have a question, if i have 5 viewcontrollers and want the last one to have the data from the first how would this be accomplished? I can do it just fine the way we did it in this video but when i try to do it to another vc doesn't not pass. Any feedback is appreciated! Thanks!

Instead of adding company name to the bottom of the list, how can we add it to the top of the list? Thank you.

Love how he says "Lets wrap up this lesson" halfway through the video lol

Wow well that is a problem... Another website problem discovered: When a user submits a question comment while watching the video, the whole page reloads and resets the user to the beginning of the video.

Beautiful lesson. Very grateful to you for showing us the way!

Hi brian, Thanks for sharing such precious information. Just got a question,that for slide in menus i m still using old way of cgrect(x,y,width,height).which never work well in landscape mode.can i use these constraints in slide in menu.can u pls give a short example. Thanks in advance

Hi Brian, Thanks for your great Course, I have a question: how to get ride of this message: "if we're in the real pre-commit handler we can't actually add any new fences due to CA restriction" Thanks and Regards

Hey Brian! I recently bought the course and going through all these awesome tutorials. Can you please explain the difference between the weak protocol reference vs the normal one? And when to use weak protocol. Thanks.

Hey Brian, I am trying to build a UItextField for data entry and a UIPickerView for users to pick out of some options for classification. Have you got any idea how to implement it inside a custom Collectionview cell and how to use delegation to get user input into my model.

why didn't you reload the table view data instead of inserting a new index path manually? i wonder what the difference is

Hey Brain, Thanks for the great tutorial!! I have one little question, why didn't you use leading and trailing constraints instead of right and left constraints ?

Hi Brian. For some reason, when I put the anchor view.topAnchor, it is taking me as if the view started from the status bar, and not from where the navigation bar ends. What is this about. already check the code and it's the same

I already completed the course as instructed in the videos. To challenge my skills, I am now going thru and re-taking the course and using the Interface Builder instead of coding the interface. All was going well up to this session. I can not seem to get the new record info created on the "CreateRVController.swift" back to the TableView on "RVsController". The "Test Add" button on the "RVsController" works just fine and the TableView added the new row as expected. It would be greatly appreciated if someone could look at my code and help me figure out what I am missing or doing wrong. Here is a link to the latest version of the code. Thanks in advance..... https://github.com/bfriendjr/InterTrainingRV

Nice series, looking forward to complete it since in the job, we are also using Core Data for our app (Loop - email messenger). I'd like to point out, that it is almost necessary to mark our delegate property as a weak (Inside CreateCompanyController - weak var delegate : CreateCompanyControllerDelegate?) so we avoid possible memory leak. This means, relationship between CreateCompanyController and CompaniesController is freed, in our case, when CreateCompanyController dismisses. In case you want to mark delegate as a weak, you should also constraint CreateCompanyControllerDelegate to a class, since classes are reference types (protocol CreateCompanyControllerDelegate: class). Hope this helps you :)

view.topAnchor didn't work for me. I had to go like below. nameLabel.topAnchor.constraint(equalTo: view.safeAreaLayoutGuide.topAnchor).isActive = true I think it's part of new iOS framwork change that was not existed before :)

When I change back from landscape view to normal view, the navigation bar title: "Create Company" will always go to the middle, and then, if I click cancel and re-open the "create company view", the title will be on the left again. Is this a problem related to the simulator, or we have to set up some property to fix this issue?

Is it common for companies to not use the storyboard for UI creation?

This is a MONSTER tutorial! Great stuff!

This video was truly breathtaking Brian. Omg you are so talented at teaching. I wish to become like you one day!

Unfortunately you lost me with the Auto Layout in code. Are there any resources you used to learn this?

When I tried to put in UI elements on the CreateCompany View, they did not show using view.TopAnchor etc because they were hidden behind the Navigation Bar. It looks like view.topAnchor is the view of the frame. From ios 11 onward, there is now view.SafeAreaLayoutGuide which provides a view which is unobstructed by any Status Bar, Navigation Bar and Tab Bar. Therefore, in your example, use: guide = view.SafeAreaLayoutGuide let label = UILabel() label.text = "Name" label.backgroundColor = .red label.textColor = .black label.translatesAutoresizingMaskIntoConstrints = false view.addSubview(label) label.topAnchor.constraint(equalTo: guide.topAnchor).isActive = true label.leftAnchor.constraint(equalTo: guide.leftAnchor).isActive = true label.rightAnchor.constraint(equalTo: guide.rightAnchor).isActive = true label.heightAnchor.constraint(equalToConstant: 50).isActive = true That works a treat, and is usable on all UIViews whether or not there are navigation bars etc.

Hey Brian , While entering the text in textField when we forced unwrap that you mentioned it was already having the empty String. Can you please tell where are we setting it as Empty ?

Great lesson, that video was lit

Hey Brian for some reason my ddiAddCompany method is not getting called when clicking the save button. I am not sure why this is happening. Could you take a look and see if i am missing something? @objc func handleSave(){ print("Trying to save company") dismiss(animated: true) { guard let name = self.nameTextField.text else {return} let company = Company(name: name, founded: Date()) self.delegate?.didAddCompany(company: company) } } @objc func handleAddCompany(){ print("Adding companies") let createCompanyController = CreateCompanyController() let navController = CustomNavigationController(rootViewController: CreateCompanyController()) navController.view.backgroundColor = .lightRed navController.modalPresentationStyle = .fullScreen createCompanyController.delegate = self present(navController, animated: true, completion: nil) }

Thank you so much for taking the time to explain Delegates in this video, it really helped me understand the concept.

Hey Brain, I meet a UI Layout issue about adding namelabel to the createCompany view, I have downloaded your project and founded that it works. But according to my UIWindowScene diagram which is in the Xcode, the namelabel has added to the position where is near to the screen's top edge and it is covered by the navigation bar. Should I set a fixed value for the top anchor or do you have other solutions? I have tried to use [navigationController!.navigationBar.bottomAnchor] to replace the original one, but simulator crash and Xcode tell me that view hierarchies are illegal

Hello Brian. Everything OK with the lessons until now, except for the fact that I can't make CreateCompanyController nameLabel and textField subviews appear. I've double-checked the code, even copying it complete from yours, but that subview doesn't appear on the controller view. I've as well checked the configuration on AppDelegate and SceneDelegate, as it were working OK on previous lessons. Any suggestion? I'm eager to start with Core Data section and don't want to go on without having everything up and running. Thanks!

I've find the solution in the comments. Apple's changes on swift and Xcode makes course out-of date so soon... Now using Xcode 11.7 and Swift 5. I've modified this two values on CreateCompanyController: lightBlueBackgroundView.topAnchor.constraint(equalTo: view.safeAreaLayoutGuide.topAnchor).isActive = true nameLabel.topAnchor.constraint(equalTo: view.safeAreaLayoutGuide.topAnchor).isActive = true Efectively, it seems that NavBar was hiding label view. Nos working OK. Going to Core Data section ;-)