I just drag and dropped a UITabBarController into XCode 6 xib.
It comes with two viewControllers by default.
But when I am trying to run app I am getting this
The thing is I am couldn't able to see bar button items and neither viewcontrollers.
How to deal with that?
So I assume you are using a storyboard, not an xib? If not, then you need to use a storyboard, then go into your info.plist file and add the following key-value:
"Main storyboard file base name" : your_storyboard_file_name_without_the_extension
Then make sure in your project settings > deployment info > main interface, you also point to that storyboard.
your xib file has to be set as the "Main nib file base name" in your target's info.plist file, like on the screenshot (in my case the xib file is called Main.xib):
in your application's delegate header file, the window property has to be declared as IBOutlet (so it can be set through interface builder):
#property (strong, nonatomic) IBOutlet UIWindow *window;
in the xib file, create an object that will represent your application's delegate object - be sure to set it's Class to your delegate's class name (in my case the class's name is "AppDelegate"):
create a window object in your xib - this will be the main window or you app.
connect application's delegate window outlet with window object:
connect the window's roootViewController outlet to your tab bar controller:
so this is how you do it with a xib. although, I'm not saying it's simpler than using storyboards..
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 normally create a button in a view and then ctrl-drag it on the controller's .h header to attach it with an IBOutlet. But now i'm working with 2 different .xib layout files (one for ipad and one for iphone) and i've to attach the same button to the same IBOutlet. Is this possible?
It is possible, but remember to change the File Owner's class of the new/second .xib file.
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 trying to link a create an IBOutlet for a UIWebView Element, however whenever I hold down control and drag from the Storyboard to the ViewController.h file, nothing happens and an outlet is not created. I already have an outlet in this file, however, I would like to create another one. Whenever I go to the view controller for the previous outlet and hold control and drag the element to the ViewController.h file a new outlet is created. Is there a setting that I have enabled that stops this shortcut from working. Is there another way to create an outlet for ios in Xcode 5.0.1 on Mac OSX 10?
Fixed issue. The class of the view controller was UIViewController not ViewController. This meant that the ViewController.h and .m files were not showing up under Automatic. Once changed I could view the ViewController.h and .m files and create outlets in them.
I recommend not using storyboard, while it is a lot easier to use, it doesn't let you do many things. To create a new outlet, go to where you want to create it (this will most likely be a header file) and then type: IBOutlet yourOutletType *yourOutletName so to create a UIWebView you would type:
IBOutlet UIWebView *myWebView
and to create an outlet, such as a UIImageView, you could type
IBOutlet UIImageView *imageView
just remember to hook it up in your .storyboard file.
Again, I recommend not using storyboard, it IS a lot easier, yet it really has lots of limitations
I've noticed that i can put in a single xib multiples UIView; the main view is associated with the file's owner, but how to reference other views in the xib?
My need: i've a xib view splitted with a fixed top part and a bottom part made by a tabbar with three tab buttons: by clicking each button i need to load a subview, so my idea is to put other sub-views in the same xib on other views and load them on demand. How to accomplish this?
Thanks
You can just create IBOutlets in your header files and associate them with the additional views, just like any other Interface Builder component (or even just ctrl-click and drag your views to your code, if you're working in XCode's automatic assistant mode).
For example, let's say you have a view controller called FooViewController, and a matching FooViewController.xib interface file:
#interface FooController : UIViewController
#property (nonatomic, retain) IBOutlet UIView *additionalView;
#end
...and then you can just connect your additional view up to its corresponding outlet (which will appear in IB under the file owner). It's really no different to hooking up a UILabel or UIButton.
One thing to note though - you say "my idea is to put other sub-views in the same xib on other views and load them on demand". All the views inside your XIB file will actually get created at the same time, so it's not really loading on-demand. I doubt, unless you're doing something crazy, that this will be an issue for you in practice.