I am working my way through the iOS Big Nerd Ranch book, and have hit a roadblock. This is about the extent of my iOS knowledge. I found a similar question from a few years back, but was not able to implement the solution so maybe my case is different: Programmatically assign view controller to tab bar controller
The Problem: The book has you delete a storyboard controller in order to implement it programmatically. Currently the app is two viewControllers and a Tab Bar Controller to navigate between the two. I deleted the viewController and implemented it in swift according to directions (pictured below), but I am not sure how to link this MapViewController back up with the Tab Bar Controller. Referencing storyboard objects programmatically has not been discussed yet, and I am having trouble piecing the steps together from other online resources.
What Happens When I Run It: My application opens up to the other viewController, which is a storyboard, and the Tab Bar Controller only contains a button for that one viewController.
The Question: What is the appropriate way (where should it be done, and how) to take the viewController I have defined in swift below, and place it in the Tab Bar Controller? Thank you very much for the help!
The storyboard with the MapViewController deleted:
The MapViewController that I want to put in the Tab Bar Controller:
Related
I am novice in swift and I have found different tutorials with different solutions. My question is, if I create tab bar menu, I will get in storyboard three views: First Scene, Second Scene and Tab Bar Controller Scene. I understand that I need seperate swift files(classes) for First and Second scene. But in some tutorials people make also next swift file(class) for Tab Bar Controller Scene. Could someone tell me if I need it? If so, why? I have made my app without class for Tab Bar Controller Scene and everything works.
It is for controlling tabbar delegate or otheres and subview’s. I recommend you make a class file for tabbar too.
As you said it works without tabbar class file. But if you deal with complated source you will know that you will need the tabbar class file.
I have an app which has 5 major user flows..each flow is a few screens linking to each other...so each flow warranties its own storyboard. Each storyboard starts with a custom view controller that is embedded in a navigation controller. So far so good.
Now all of this is "stitched" together via a UITabBarController. This is the most default UI design ever known to iOS.
But turns out I don't really know how to link from tabbarcontroller, which is in its own storyboard (that is set as the main one on code project) to any of the other storyboards.
This problem looks so! simple, so I think I am missing something utterly obvious, but I just can't figure out how to do it.
So how do I link from tab bar controller in storyboard 1 to the initial view controller in storyboard 2 when a tab is tapped?
You should do this in code. You can have the tab bar controller (tbc for short) and the controller in the first tab in the app's main storyboard, and in the app delegate, instantiate the other controllers using instantiateInitialViewController. Create a mutable array by copying the tbc's viewController array, add the other controllers you instantiated to it, and then set that array as the tbc's viewControllers array.
You have to add your viewcontroller programmatically in tabbar.
I'm new in Objective-C, and even more using storyboards. This being said I'm trying to use a bar button item within UITabBarController and UINavigationController as can you see in the image below.
But once I run the project in simulator this item is not showing. I would appreciate a non programmatically solution if it's posible.
Okay, so the way to do this:
When you create your tab view controller. You have to add a navigation controller that will handle each tab.
Tab View Controller --> navigation controller --> View Controller 1.
Then add the bar button item to view controller 1. Then go ahead and add the segues.
Now, still it won't show up.
But, if you go to your code for your view controller 1: Add a reference from the storyboard of your bar button item into your View Controller 1 file. Then, in ViewWillAppear():
self.tabBarController.navigationItem.rightBarButtonItem = _btnNewContact;
From there, it will show up and the segue you have configured in your storyboard should work perfectly! =)
After I spent a while trying to get the best way to do it I finally did that I should have done since begin. Read official apple documentation.
Parameters
viewController
The view controller that is pushed onto the stack. This object cannot be an instance of tab bar controller and it must not already be on the stack.
In other words, my approach is just a bad design.
I have built some view controllers in storyboard like in the picture below
I already implemented the data inside them, modal segue is used for transitions in between. Now I just realise when I push "back" button, previous view won't be properly loaded. I figure I should switch to navigation controller and add those controllers in stack instead. But I don't know how to go from where I am now.
I think I should make changes programmatically because I found building navigation controller in storyboard won't have much variation in UI design (at least I don't know how to implement existing pages in that way). So what should I do to implement programmatically? Please help me, thanks!
Select Category View Controller and go to menu: Editor > Embed In > Navigation Controller. Then change segues style from Modal to Push.
I'm new to iOS, but I know the basis. I want to host 3 UITableViewController in a UITabBarController using the storyboard.
I dragged a UITableViewController from the object list(?) and control dragged creating a seguel. Now the tab shows successfully the table view controller.
The issue is the rows are taking the space of the status bar. So I want a navigation bar(?) there, with a title. Since I'm new to iOS I don't know the following:
Given the fact that UITabBarController is the first controller ever, the hosted UITableViewController should not have a back button, obviously. So is it correct to use a navigation bar to display a title (and possible add/edit buttons)
If so, I tried dragging the Navigation Bar but it doesn't work.
What am I missing or doing wrong?
hope this helps
actually it is done for another answer. but it will be handy to u too
You will want to add in 3 UINavigationControllers. Have each tab in the tab bar controller segue to a different navigation controller. Then set the root view controller for each navigation controller to one of the table view controllers.