I have created several view controllers that I wish to now add tap actions to in my Main.storyboard, but they are not connected to the ViewController.swift. I am trying to connect the ViewControllers via the control-click-drag-to-swift-file method, but the object does not appear in the swift file. Is there a way to simply import your entire storyboard with all the ViewControllers into the swift file so you can start coding?
Thank you.
If I understand correctly, you have multiple view controllers all with the same class "ViewController" that you want to duplicate and edit all the same way? You have to label each class differently or else the system crashes its like having twins and naming them all the same name and getting confused why they dont know which one you are talking to.
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So I am pretty new to Xcode (but not programming in general, have learned a bit of python and java) and I am trying to figure out, for the life of me, how I connect bits of code in other views besides the first one when they are linked from a navigation controller.
To paint a picture of this, I essentially start out with a single view application, I have the first view and I add a button to it and then I embed it in a navigation controller by doing.. Editor -> Embed In -> Navigation Controller. The next time, as I have been following from various guides online, is that I control drag that button to that view and hit "show" to link them. Now say I have another button in that new view I just linked to. Xcode doesn't seem to let me just control drag that button onto the text in viewcontroller.swift, I believe that this is because they are two separate view controllers now however I have not a clue where the second viewcontroller2.swift file may be. Or, maybe, there is an easier way to link the two views together and actually be able to modify the source files?
If you're trying to find a "ViewController2" you won't find it, because you have to create it! Use Command-N to create a new file and choose "Cocoa Touch Class". Name it something like SecondViewController and make sure it's a subclass of UIViewController. Now you can go back to interface builder and change the class of the second view controller to whatever name you just chose, like SecondViewController.
To address the other part of your question (I think), I'm not exactly sure what you're trying to do. If you want some of your data to transfer to the new ViewController, use the prepareForSegue function in the first ViewController.
I've been trying to outline the basic functionality of a swift application I was developing. I created a basic gui with the storyboard functionality that xcode provides. Here is a picture of what it looks like currently:
What I want to do next is code up a way to receive and store input from the text fields I outlined in the storyboard. Additionally I want to receive information regarding certain settings that are placed from the switches I outlined in the second screen.
I've been looking through the files that xcode provides me but I haven't been able to find the one that contains the functionality for the storyboards. If someone could point me in the right direction for that i would greatly appreciate it. Ultimately I just want to be able to manage the input provided by the interface I outlined below. Thanks!
For each view controller on the storyboard make a subclasses of UIViewController.
In the inspector panel on the left of the storyboard set the class of each view controller to their respective subclass of UIViewController.
Open up the .swift file for that view controller and storyboard and ctrl + drag from the textField to the class this will cause a small popup where you can create an IBOutlet or IBAction.
I am working on an app that uses parse so I used the "starter project" as a base and worked from there.
The issue I am facing is that the ViewController is controlling the login screen a well as others such as the tableView and mapView witch I added later.
As this is the case if it would be possible I would link the map outlet by simply dragging from the code to the map but obviously this is not possible, How could I solve this problem (I understand I may be looking at the problem the wrong way but any help would be appreciated)
here is the code with the map outlet
here is what the layout looks like
The MVC model, Model-View-Controller model, isn't intended to have an action in one view touch the controller of another view. In InterfaceBuilder, you should only ever be able to attach actions to the controller for that specific view.
In general, if you set the file owner to ViewController, then you can only link IBoutlets to that view controller not make to another one.
your map is available in your MapViewController not ViewController, so you need to give the reference/IBoutlet of map need to assign the MapViewController, if you want to implement in ViewController, you need to create new one map
No you have to create different file for each controller.
you cant add outlet of all in one controller
I am currently learning iOS development with Objective C. I am facing a couple of issues and I was wondering whether someone could give me some clarifications about xCode. I was reading a book on iOS and I was following it's instructions.
It was saying to create a header and an implementation file with the name test.h and test.m respectively. The test class will have UIViewController as superclass. This is all very fine...
Then, from the instructions, it says to drag out a View Controller from the object library onto the storyboard. Then, the book says:
"Now that the view controllers is in place, it’s time to set it up with the correct controller class. Select the view controller and bring up the Identity Inspector. In the Custom Class section of the inspector, change the class to test, and press Return to set it."
My question is: Is it really important to change the class of the view controller to test? Why can't I let the class remain as UIViewController? If I let the class remain as UIViewController, will the outlets and actions created on the view controller in the storyboard not be able to 'communicate' between the View Controller in the storyboard and the test.h and test.m files?
Thanks for reading
Kindest Regards
Yes, it is imperative that you set the class. Fortunately Xcode will not allow you to add outlets in the storyboard if the class set does not define them. If you don't set the correct class then the wrong class will be instantiated at runtime and your custom code will not run.
Keep in mind that the storyboard contains an archive of your design which can be unpacked and used at runtime. It doesn't work automatically and it needs to be configured properly. If, for example, you were to add outlets and actions pointing to an instance of UIViewController instead of test (whose name should start with a capital letter) then you would get an exception at runtime when the archive is unpacked and it is found that the outlets can't be connected, because UIViewController doesn't define them.
YES, it is mandatory. In addition to other answers posted here, I would like to tell you to think over this thing:
Suppose you have more than one Class & ViewController in your demo
project, how do you expect XCode to assign proper Classes to specific
ViewControllers?
I've reviewed many websites and youtube videos that have IOS 5 storyboarding information. Most of them are pretty basic and only describe how to get started with storyboarding and how to segue into other views. I'm interested in taking it a step further and actually adding custom code to the views contained within the storyboard.
Is the "normal" workflow when creating an IOS app using storyboard?
Create the layout of an app using storyboard (adding views and objects to those views).
Create viewcontroller files (.h and .m), one for each view contained within the storyboard.
Hook up the scenes from the storyboard with your own view controller subclasses by editing the "class" values in Identity Inspector.
I believe I followed those steps, but when I implemented step #3 above and ran my application, I was only able to see a black screen. The view I had created in storyboard wouldn't display.
You have the right steps. Make sure you create your .m and .h without a xib. Post your code for the view controller for your first view to get more help.
yes, this is the normal workflow. have you set the "initial viewcontroller? ?
see this image: http://dl.dropbox.com/u/31437518/Screen%20Shot%202012-01-24%20at%2012.29.34%20AM.png
It sounds like you made a storyboard file but it isn't being loaded.
Do you have the main storyboard setting in the target summary screen filled in?