Do I need to implement a Navigation Controller to make a UISearchViewController? - ios

I'm working on my first iOS app and I'm realizing just right now that I don't have a navigation controller. Since I'm already pretty far in the app and not completely sure of how I would implement a navigation controller, I was wondering if I would need one in order to implement a search controller, meaning a UITableViewController with like a navigation bar on top.

To implement a Navigation Controller you just need to select the View Controller in storyboard then Click up top Editor -> Embed In -> Navigation Controller. You could also just add a navigation bar to the top of the View Controller you are using.
These are the two options for adding a navigation bar, however, neither is required for adding a search bar.

You do not need to add a navigation controller just to display a navigation bar. Navigation bar can be added to any UIViewController.
You can also add just the search controller in a navigation controller, without affecting your other view controllers. This will add a Navigation bar to the search controller and also allow you to navigate to (Push) other view controllers.

Related

do I need to embed navigation controller if I want to make custom navigation bar view?

I need to make a custom navigation bar, since it will have search bar and some other views, it will be easier if I just make custom view instead of inserting view to navigation controller programatically
like the picture below, there are 2 ways to implement custom navigation bar view, by embedding navigation controller (yellow VCs) and use or just using present modally segue (blue VCs)
personally I will choose to use navigation controller because 'maybe' there are some methods that has already built that I can use. but the problem is, the custom navigation view (red color) in navigation controller it seems overlapped by the actual navigation bar in storyboard, I don't know how to hide the navigation bar from navigation controller in storyboard, even though if I use self.navigationController?.setNavigationBarHidden(true, animated: animated), it won't be a problem.
what is the right approach to make custom navigation bar like this?
In IB the navigation bar is shown only to simulate what it might look like when you run the app. The decision to show this is inferred, by default, by the fact that it is downstream from the navigation controller. Luckily you can change this option.

Navigation Bar and navigation items not visible on runtime

I don't understand why SignIn and SignUp navigation Bar and the back buttons are not visible even when embedding both of these views in the navigation controllers.
Is there anything else we have to do in code. All top bars are inferred in this case and I haven't touched the visibility of any.
There is no back button because there is nowhere to go back to. Your sign up and sign in view controllers are the root view controllers of their respective navigation controllers.
There is no visible title because what you are looking at is the navigation item of the tab bar controller, which has no title.
Your architecture posits a navigation controller insider a navigation controller, which is illegal:
nav controller -> tab bar controller -> nav controller
You can't do that.
Also you can't put a tab bar controller inside a navigation controller. A navigation interface inside a tabbed interface is fine (as illustrate in Apple's own docs: https://developer.apple.com/documentation/uikit/uinavigationcontroller). The reverse, a tabbed interface inside a navigation interface, is not.
The simplest solution is to eliminate the first navigation controller completely, as there is no need for it (you are not pushing anything onto it beyond its root view controller).
IN SIMPLE TERMS
Logically, your Tabbar should not be embedded in a UINavigation Controller. Instead, delete the NavigationController and make the Tabbar the root Viewcontroller then embed each UIViewcontroller in a separate Navigation controller

iOS tab bar controller adding a navigation button at the top of the controller

So I have a UITabBarController and it has three buttons on the bottom in my iOS app. I want to add another set of buttons at the top but not quite sure on how to do this. I tried adding a UINavigationBar and a navigation button, and adding a view in to it, adding just the buttons, ect.... but to no avail. It won't let me add anything to the UITabBarController. Is there a way to do this?
Thank you very much.
the simplest way to that is to creat 3 buttons side by side and set their frame the way they divide the top of screen to 3 equals. it means u can create a tab bar with buttons manually.
but there's another way. i think this answer would help u
Positioning UITabBar at the top
To use the navigation bar you need a navigation controller. Now depending on your needs your tab bar controller should be inside a navigation controller or the other way around. If you want to be able to navigate away from the tab bar controller (have a screen without the tab bar) you should embed your tab bar controller into a navigation controller. If you only need the navigation bar for some tabs of the tab bar controller or you still want the tab bar to be visible all the time you should embed all (or just the ones than need a navigation bar) your root view controllers for each tab in navigation controllers. Finally if you do not need the navigation behaviour you could just put a regular view in the view controller that needs the bar at the top and some buttons in it and make them look the way you want.
You can embed a view controller in a navigation controller in a storyboard by selecting the view controller and the going to Edit->Embed in->Navigation controller.
Select the Any Tabbar ViewController then above the Menu -> Editor -> Embed In -> Navigation Controller its select, if you get the Navigation Controller then if you add the Navigation Button at Top of the ViewController, example :

UINavigationBar without UINavigationControler Swift

I want to add a navigation bar to my view controller (I do not use a navigation controller) to show the page title and contain an add button. However when adding a navigation bar though the interface builder it is not showing. I am assuming it is possible to use it without a navigation controller otherwise there would be little point in allow me to drag it on to a view controller.

What type of view controller is used for this app?

Does anybody know what kind of view controller this app uses? I am trying to implement one somewhat like this but can not get the tab bar to appear at the bottom when I use the table view controller. I also can not get the title of the view to appear at the top where it says home.
I would say this is a tab bar controller. The home tab you show may just have a navigation bar placed on top of it as a sub view or it is embedded into a navigation controller.
My image shows a tab bar controller as the root controller and initial controller and the view from the first tab embedded in a navigation controller.
Hope this helps!
The screen you are looking at is a combination of a UItabBarController a UINavigationController and a UITableViewController.

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