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.
Related
I am unable to set a referencing outlet for a text field I have created. I am trying to do this via Ctrl-Drag. Can anyone advise? I have set the delegate as the View Controller. In general, I only have one view which is populated with a few text fields and I have written the following code for the ViewController.h which is what I'm trying to set up as a Referencing Outlet:
#property (weak, nonatomic) IBOutlet UITextField *userIDText;
First, make sure the control you're dragging from is the same class as the outlet (in this case, UITextField) or it could be a subclass of that class.
Second, make sure control's parent view is a subclass of the file you're dragging to.
Third, make sure the file you're dragging to is saved. This is the most common problem I run into. Go to the source file you're dragging to and push Cmd+S to save.
Fourth, when in doubt, Cmd+Shift+K to clean, Cmd+B to build, then try again. If that still doesn't work, restart Xcode. And if it's still not working, go back through the checklist.
In my case, to be able to create a referencing outlet,
I had to open the Storyboard.
Click on the top View Controller element (left panel in the Storyboard)
In the Identity Inspector (right panel), I had to select from the list my custom view controller class before I could drag and create the referencing outlet in it.
In my cace,(swift3)
1.right click on the storyboard.
2.Ctrl-Drag from black window and ReferencingOutlet to View on the storyboard.
enter image description here
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 created a button on a view controller by dragging the icon of button in storyboard. I thought this would generate an object. is there an approach that I can get the id, i.e. the object of that button? Is there a method that we designate a label or identifier for that button and we can refer to it with certain methods?
Thanks in advance for answering.
When you drag a button from the object library onto your storyboard's scene, when that scene is instantiated at runtime, the object associated for that button will be created. If you want to have a reference to that object so you can interact with it programmatically, you can open the assistant editor:
You will want to make sure you set the custom class for your view controller and you simplify your life a little if you tell your assistant editor to "automatically" select choose the right associated .h file:
You can then control-drag (or right-click-drag) from the button down to assistant editor window and create either an outlet (an IBOutlet) or an action (an IBAction):
By doing that, you then have a reference to the button object that is created when the scene is instantiated.
Open Assistan Editor (Split View, so that you see Interface Builder on the Left and Your View Controller on the right.)
Ctrl-Klick & Drag on the button and drag it to the Controller (you'll see a blue line).
An IBOutlet will be generated in your ViewController and you can access it.
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.
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.