I can't seem to be able to set the identity of my view to GraphViewController in Xcode 4.2.
I dragged a regular UIView in storyboard on a UIScrollView.
I create a new file called GraphViewController extending UIViewController (.h and .m) but when I click on my view in storyboard and try to set the custom class name (its identity) to GraphViewController, it doesn't set it. It doesn't even show it in the dropdown list.
Am I missing something here a connection or something?
You can set any class inherited from UIView to a UIView instance.
But you have created a UIViewController subclass, not a UIView subclass.
You can assign your custom class to the controller, not to the view.
In case anyone ever makes the dumb mistake I just did... ensure you have created an appropriate storyboard for either iOS or OS X. Adding the wrong one to your project will certainly cause issues like this.
My solution was making sure I was clicking on the controller's top tool bar, and not the "screen" UI frame. If you select the frame or anything in it, your Identity Inspector will be looking at the View, or other elements in the storyboard, instead of the controller itself.
Related
This has been asked before but as you can see from the picture a simple control+drag from the story board to the controller doesn't work. I made a new Cocoa Class subclass of UIViewController. After I try to hook up my Map View to it and it simply does not respond.
You have most likely not set your View Controller's class to your newly created class.
You can do this by going to your View Controller's Identity Inspector and changing the class from UIViewController to MapViewController.
You'll then be able to connect UI elements.
You might have forgotten to set the class of the view controller you have in the storyboard. Make sure the class is set to "MapViewController"
Here is where you set it :
Setting the Class of a VC in Storyboard
It's your own issue.
1) Storyboard on left side
2) class(ViewController) should be automatic in right side.
See image below:
I am having issues making UILabels and IBAction buttons in custom classes. Xcode seems to not want me to do it. They way I'm trying to do it is through interface builder (storyboard). I have no issue clicking and dragging to make IBOutlets and IBActions using the main View Controller but when I click and drag over to connect them in a custom class it does nothing. Am I only able to make these in the View Controller? I've attached a pic of me trying to drag over to connect my button in the custom class and you can see that nothing pops up. So basically, Are labels, buttons, text fields etc, for the View Controller class only? Thanks for any feedback.
Within interface builder, you will need to make sure your view controller is using your custom class by opening utilities view on the RHS of the IB, selecting the third icon along (please see picture below) and enter your custom class name in the space provided.
Your custom class will need to be a subclass of UIViewController though, like the picture below, not an NSObject for example.
I'm referring to this line within your .h file ...
#interface MyCustomClassViewController : UIViewController
Your custom class needs to match the UI object you are connecting it with. For example if you had UIView object, your custom class would need to be a subclass of UIView, a UINavigationViewController object, a subclass of UINavigationController etc etc.
I hope this helps.
Select your view controller in the stoyboard and go to the identity inspector, make sure the name there is your custom class name.
I know this appears to be a duplicate of some other questions, but the answers are not working for me.
I have created a single view app.
In the storyboard I added a subview to my main view.
I have a label on my main view and another label on my subview.
I have created a class of type UIView and added it as the custom class for the subview.
I can ctrl-drag my label on my main view to the main view controller class. But when I try to ctrl-drag my label on my subview to my custom class, I cannot get the connection to occur.
I have even typed the property information and tried to make the connection manually to no avail.
Things have changed a bit in the latest version of Xcode's Interface Builder. Can somebody tell me what I am missing? There is literally no code here. I am just testing trying to connect outlets to a subview with a custom class.
The first image shows that I have set up the custom class and added a property but I cannot make the connection.
The second image shows the main view label is connected in the main view's controller.
The third image shows that there are no outlet connections for the subview's label.
You can manually write the IBOutlet property declaration in the #interface of the custom view subclass, and assuming you've defined the base class of your subview in IB, then you can drag from the outlet circle in the code back to the control in the scene.
Or, as you point out, Warren Burton suggested both this technique and another in his answer to this other question, Can't Wire to Subview in IB.
The issue has to do with the File Owner of the View Controller. It is probably set up as being IOViewController, thus you can only make property connections in that .h file.
What you can do, is create another .nib file for the subview and put the subview in there. Then in that .nib file, make the file owner IOSubview. Property connections will work just fine there. Then just add the subview to your IOViewController programatically. Just remember to load the nib file from bundle first.
This is what I did (in Swift):
I Created a new ViewController (e.g. class MyViewController: UIViewController {})
In StoryBoard, I expanded the 'Scenes' (i.e. the tree view of all UI components) and selected 'MyViewController'
Using the 'identity inspector' I assigned the 'MyViewController' class (as oppose to the default UIViewController)
After that I was able to assign an action.
I suspect that for Obj-C it is similar process.
You don't create outlets in the subclass, you create the outlet on the view controller it is on. You need to #import the subclass into IDViewController.h and create an outlet there.
IDViewController.h
#import "IDSubclass.h"
...
#property (strong, nonatomic) IBOutlet IDSubclass *outletName;
Zoom your storyboard to 100%. If you zoom out, to say 50%, then the outlet connection won't work.
I am currently trying to implement a custom radio button class that I have been messing with (located at https://github.com/t4ku/RadioButtonWithUIKit). This radio button solution draws everything programmatically.
I was wondering if there is a similar solution using buttons that were added via Storyboard. I already have my design exactly how I want it through Storyboard and would much rather somehow "link" the buttons with my radio button class.
Any newer ideas or suggestions would be greatly appreciated.
You can change the class of an object on Storyboard in the identity inspector (you can manually enter the class instead of relying on the drop down menu). You can then link the object however you like.
If Storyboard doesnt accept the RadioButton class for some reason you could also create a custom class of UIButton that would inherit from the RadioButton class and then use that in the same way.
That control is based on UIView, so in your storyboard just add a new View object, select it, and then set the class (at the top of the image) to RadioButton:
You won't be able to see anything but a blank view where you place it, but it will work properly when you launch the application. This will at least make it easier to resize, position, etc.
If I understand your question right, to refer to a button added to a storyboard programmatically, you have to link the variable name in your .h file to the actual button in your .xib file. If you add the following line to your .h file
#property (nonatomic) IBOutlet UIButton *theButton;
Then when you return to the .xib, there should a yellow cube (file's owner) to the left of the storyboard panel. If you right click on that cube, you should get a list of outlets. At the end of the line that has your button's name, there should a circle. If you Ctrl+Click and Hold and drag it to the button in the storyboard, it should like the variable in the .h file to the button in the storyboard.
So now when you refer to the variable name you created, you will be referring to the button in the storyboard.
I'm still new to xcode / iOS and have the following problem:
in order to display some mobile debug information, I have a UIview added/connected as outlet-property to one of my Viewcontroller. This view is a custom subclass of UIview. Now I addeddd some UIlabels as sub views to this view and want to drag the outlet connections from these labels to my customUIview.h file in order to have these labels accessible as properties of my custom UIview class (no need to access them directly from the view Controller).
Problem is that the interface builder (I'm using Storyboards/ xcode4.3) does not make the trick. I can connect the outlets to the ViewControllerClass.h but not to my sub view's .h file.
Can anyone point out where the problem is?
Just solved the problem. After typing the property outlet declarations manually in the customview.h file I could ctrl-drag-connect them from there to their corresponding UIlabel objects in the interfacebuilder. Works only in this direction!
Thanks anyway
Update your custom view class from "UIView" to your "Custom View" class in interface builder.
And now you can make connections just by ctrl+drag your buttons or textfield to your appropriate custom class.
Problem solved! Due to an interesting SO post from three years ago (about connecting to subviews of UIView), I discovered that one merely drags (not Ctrl_drag!) from the action or outlet circle (in the .h file) to the control and that's it. Works perfectly even when the controls are in a different view from the subclassed UIView. Works equally well with outlets as with actions though you always drag away from the circle.