I'm looking for a solution specifically for the issue with a Swift3 UIViewController having IBOutlets defined, but dragging actions from storyboard does not connect them to existing outlets. I can add new outlets, just with different name, and they work (still cant re-connect them later).
I see old solutions for objective-C dealing with headers and source files, but a swift is a single file per class.
Is there a way to fix "can't connect IBOutlet to swift file" issue?
but dragging actions from storyboard does not connect them to existing outlets
I've noticed this too. But it's not a difficult problem. Here's what to do:
Look carefully at the gutter next to the outlet in the code. There is a circle. Drag from that circle (no need for control-drag) to the view in the Interface Builder canvas.
After upgrading to Xcode 6, I opened an old project (that contains a subproject, so it has many targets)
and I noticed that no link from my Storyboard ViewContoller to the relative Objects works.
For example I have a ViewController with a TableView inside and now I cant do can't do anyhing with it because the connection is missing, I can't even redefine a new IBOutlet in the VC because the arrow in the storyboard from the VC won't connect to anything.
To be more clear:
The class is defined in the Custom Class section, so I can't find the problem
What should I do?
Btw I'm using obj-c not swift, I found some related answer but all about swift.
You can also see that the link between the parent view and the custom class is broken (not visible anymore) which is a huge problem.
I had the exact same issue with the app i'm working on actually, updating XCode from 5.xxx to 6.1. The workaround that worked for me was to remove the reference of every view controller and re-add them to the project...
To everyone facing that issue, here's the (annoying) trick :
Step 1 : select both .h and .m view controller files
Step 2 : remove the reference of those files
Step 3 : re-add the files to your project tree
Step 4 : open the storyboard, eventually re-build the project and smile
I can understand those things could be reaaally annoying, but it worked for me... Hope it will help someone else !
In your storyboard hierarchy select the View Controller,
In the right pane Custom Class section Class, select the drop down and your desired view controller.
I've experienced similar behaviour in Xcode 6.1.1 when trying to add the first outlet to a new view.
Tried removing the references and adding the files again as suggested above with no success.
What I did find worked was writing the first property on the new view by hand. I just popped in:
#property NSString *temp;
I could then attach my outlets in the normal way. Just delete the temporary property once you've added your first outlet.
Hope this helps.
It seems typing the outlet first (swift):
#IBOutlet weak var someViewOutlet: UIView!
and then dragging from IB the outlet to the far right type in the above code works.
Restarting Xcode resolves the issue (sometimes). Using Xcode 6.1
Maybe I can help
In my case the problem was that the viewController.swift file was not connected to the StoryBoard. The solution is to click in the Upper border of the view on the storyboard beside the 3 icons (View Controller, First Responder and Exit)...now look over in the Utility Area choose Identity Inspector, and in "Custom Class" choose the custom view controller.
Hope this helps. Xcode is hard!!
Here's the proper solution i believe.
If you renamed the controller in code, you need to update the .xib file.
I could not find a way to do it in the interface builder, so do this:
Open the .xib file with a text editor: right click the file > open as > source code
In the <objects> node find the <placeholder> node with the property placeholderIdentifier="IBFilesOwner" and replace the value in customClass="MyOldControllerName" with your new controller name: customClass="MyNewControllerName"
And all your IBOutlets will work as normal again.
Thanks to everyone who commented.
It is a bug of Xcode 6 / 6.0.1. Downloaded and installed the 6.1 version and the problem disappeared.
Maybe try to delete the outlet from the menu in the storyboard (in your screenshot) and drag it again of the element.
Okay, let's check iff it is the lack of a module name.
In your storyboard ViewController, type in the name of module. (the project name)
2.Clcick outside in another field. When you go back to the module field it may say none, but now there will be a dropdown menu entry for your project name.
Select your project name and see if everything is good.
If there are still issues I will post photos.
Seems to be a workspace issue. Try to remove project form a workspace and add it again. It helped in my case.
I had this, affected all projects on my machine, swift and objective c and drove me mad for ages. Finally also noticed that I could not use the refractor to rename classes either.
The fix for me was:
Close xcode
Delete ~/Library/Developer/Xcode/DerivedData (just doing this on its own did not work!!)
Delete all user data for all my projects using the following from the directory that contains all my projects e.g. /src (be careful with this command!):
find . -name 'xcuserdata' -exec rm -rf {} \;
If you want to do it by hand just do the following for all your projects
Delete .xcodeproj/project.xcworkspace/xcuserdata
Delete .xcodeproj/xcuserdata/.xcuserdatad
Get Spotlight to re-index the drive all my projects were on (not sure if this was required
Re-boot machine
Everything sprang back into life !
I was having this same issue.
It turns out I renamed my view controller class and file name. In storyboard, I had the stale value in the right pane, Custom Class -> Class. So the IBOutlets were not aligning because there were none in the missing class, which is where it was expecting to find the defined outlets.
Filling in the correct class name of the View Controller in the Custom Class field in the right pane fixed my issue.
XCode needs to be more verbose if you have a bad class name in the Custom Class fields.
no one solution fixed my same problem...
But i have solved by:
close xcode
renaming the folder of the project
open xcode
and then the outlets will be back again
I hope that this solution is the right one for the people who have the same problem
In Xcode 6.3 I needed to close Xcode and restart the Mac. Restarting Xcode alone didn't do it for me.
I've had 6.3 for a long time and my problem was with new projects I was creating to test some things. Definitely not an upgrade issue this time.
I have Xcode 6.3 and saw similar issue. Finally few edits in .h file resolved my issue. If your interface has IBOutlet defined as
#interface NavigationViewController :UIViewController
{
IBOutlet UILabel *lblName;
}
change this to and in .m file add #synthesize lblName;
#interface NavigationViewController :UIViewController
{
__weak UILabel *lblName;
}
#property (nonatomic, weak) IBOutlet UILabel *lblName;
I was having this same problem, with no view outlet available to link to. The only way I was able to fix it was to change the owner class of the XIB file to "UIViewController," make the link, and then change it back to my intended custom view controller class. The link stayed and all was well.
I'm following along with Big Nerd Ranch's iOS programming book. In chapter 11, it has us control drag from a camera button into the method area of a DetailViewController.h file. The instructions tell us to select action from the connection drop down menu, however, the only options that are available when I do this are outlet and Outlet Collection.
In the book, the result is supposed to look like
- (IBAction)takePicture:(id)sender;
However, in my case, I get this when I choose the outlet option
#property (weak, nonatomic) IBOutlet UIToolbar *takePhoto;
I'm concerned that if I just delete the code and replace it with what it says in the book, I'll still have the problem of not having established the proper connections via the control click and drag. Can you tell me what I might have done wrong when it failed to create an action?
The problem was that I didn't control drag from the camera button, but rather the toolbar in which it was contained. Hence the action button wasn't available.
For some reason, I am not able to ctrl drag the web view I am trying to create into the .h file. I typed the code into the .h file. Now, I need to know how to connect the web view with the outlet I created. Most of the suggestions I have seen tell me to use the .xib file, however, I do not have a .xib. All of this is done in Xcode 5. As of now, if I try to run the app, the web view simply shows up as a plain white screen. If anyone has any ideas on how to connect the outlet with my web view, I would really appreciate it.
edit:
Here is the code I used to make the outlet, is it incorrect?
IBOutlet UIWebView *myWebView;
This is very strange, it shouldn't at all do this. but anyway, since you wrote the code, I believe you can now open the connections inspector (( the last tab of the inspectors window )) and ctrl drag from you connections inspector to your webview (( or vice-versa, i don't quite remember )). However, if this doesn't work, then you have a serious problem with your xcode buddy, try to solve it.
I'm using XCode 4.6 and I'm trying to replace one of my UITextView's by a SSTextView from SSToolKit in order to add a placeholder to it. The SSToolkit library is correctly integrated in my project thanks to CocoaPods. So I just changed the type of the property in my view controller to be SSTextView instead of UITextView:
#property (strong, nonatomic) IBOutlet SSTextView *commentTextView;
And of course I also changed the class of the control in interface builder's inspector:
And yet, in my controller's viewWillAppear: the property is still a UITextView and when I set the placeholder:
self.commentTextView.placeholder = NSLocalizedString(#"Comment", #"");
I get an "unrecognizable selector setPlaceholder: sent to instance".
It seems to me like I've done that sort of things a thousand times and yet here, I can't figure out what I'm forgetting.
I figured it out. It turns out some parts of the compiled application seem not to be overwritten when redeploying to the simulator. So after I deleted the app from the simulator and ran it from scratch, it worked normally. I had other bugs like missing segues and so on so I looked that up and found out about the "delete app" technique. Weird...