I am having a problem in Xcode 4 where I have a tab bar controller and two nib files - one being the main window and the other being an other view - and when i try to make a tab view load from the other nib, Xcode 4 doesn't see the other nib. When the menu that should allow you to select a view comes down, nothing shows up...
UPDATE: My wording is very confusing. in the atributes tap, the drop down menu "nib name" isn't getting populated with my nib files.
HELP!
Picture: http://imageshack.us/photo/my-images/852/screenshot20110513at224.png/
Yes, this is broken in XCode 4 (now at 4.02). The dropdown will not populate, even if the nib in question is added to the relevant target. It is very likely that somebody at Apple forgot to make a connection inside a NIB somewhere, so IB is calling methods on a nil.
Try typing in the nib name without the .xib.
For example if your nib is called DetailViewController.xib, type in DetailViewController.
Have you tried just typing the name of the Nib file into that field?
Related
This is my first application with multiple views.
I have an app that uses a storybord (main app), and another app with a single viewController and a nib file.
I would like to merge the singleView app as part of the main app.
Is there a way to do it?
How do I add the nib, and attach it to its viewController?
*Also please state if it's something that is really not recommended to do or not.
Please let me know if any more info needed.
You could simply copy whole view controller from the xib of the "single nib" project to a storyboard project.
Select "View Controller" in the xib of the single nib project as shown in image below and press cmd+c.
Open storyboard and press cmd+v. Your view controller from xib should be copied as shown in image below.
Now you should copy ViewController.m and ViewController.h (or whatever they are called) files from the single nib project.
Open Finder, find those files and drag them to the storyboard project in Xcode (somewhere in the project navigator). Be sure to select items shown in following image when copy dialog is prompted.
Now you should reconnect outlets and actions to copied view controller .h (cmd + drag from storyboard to .h file - you should already be familiar with this process)
And now you build to see if everything is working.
You should be able to just copy your existing single view nibs content into your story board. Just open both projects and copy-paste.
HOWEVER: I usually opt against storyboards. Especially when you're working in a team, they really mess things up (because of their single file/monolithic nature). I'd rather suggest you work on different files for each screen and tie them together with code.
While this may not be a concern for you, it may well be one later on.
I'm working on an iPhone app again and I'd like to setup one view to be seen before another. I've added the view to my window and have specified the viewcontroller code that I'd like to use, but I can't find where on earth xcode specifies which viewcontroller in the window is displayed first. I'm sure it must be something obvious. I thought that the appdelegate seemed logical, but I don't see it displayed there. Any help? :(
Usually it is in the UIApplication setup code. Also try looking in your xib file as to the linkages setup there!!!
Without seeing more code or your setup, this is the best I can do!!!
As you can open the MainWindow.xib file you can see the part on the windows that specifies that from which viewcontroller it is gona load. (Like "Loaded From "RootViewController""). From the inspector of the window there is an option called NIB Name that gives you a list of view controllers available in your project.Changing these will change the setting of from which view controller you want to begin your app.
Hope this will help you.
I have a tab bar with 4 items and i want to link the .xib files to each item. The problem is that the NIB File Name shows no items, and if i write the .xib for example, StartView without the .xib i get an error. I get the same error when i link the tab item to the view controller class in the Identity Inspector. This is the error:
'NSInternalInconsistencyException', reason: '-[UIViewController _loadViewFromNibNamed:bundle:] loaded the "StartView" nib but the view outlet was not set.'
I had no problem with this in Xcode 3. As far as i know i don't need outlets in my view controller to be able to link a view to a bar item.
Any ideas on how to fix this?
Thanks.
Each .xib has a main view that must be connected to its files owner. Usually when you change the class name of a .xibs owner, the view outlet will become disconnected. So you'll want to first check that the class name of your .xib is the custom controller you have made. You then have to open the .xib and click on the connections inspector. Then just drag and connect the view outlet (labelled as view in the connections inspector) to your view.
Cheers.
Problem solved, but i didn't like the solution. I created the view controller again and selected to create a .xib file along with the controller and that was it. Then i made the usual references from interface builder and it's working. I didn't like it because the .xib file has the same name as the view controller class. If anyone knows how to create the .xib file and the view controllers separately and get it to work, please inform me, i would really appreciate it.
select create new file, objective c, check the make xib file box and in the name of it, add .xib extension to the end of the name
I have an application, say 'MyApp', which by default loads the view controller 'MyAppViewController' whenever the application launches. Later, I added a new view controller 'NewViewControler' to the project.
I now want the 'NewViewController' to be my default view controller which loads when the app launches.
Please let me know what changes I need to make in my project to achieve this.
Its easy, just:
Open your Storyboard
Click on the View Controller corresponding to the view that you want to be the initial view
Open the Attributes Inspector
Select the "Is Initial View Controller" check box in the View Controller section
Open MainWindow.xib and replace MyAppViewController with NewViewController.
In your app delegate class, replace the property for MyAppViewController with one for NewViewController. Connect NewViewController to its new outlet in Interface Builder.
In application:didFinishLaunchingWithOptions: add NewViewController's view to the window instead of MyAppViewController's view.
Most likely your main NIB file is still set to "MainWindow", check your *-Info.plist file.
If that's the case you can open the MainWindow.xib in Interface Builder. You should see a View Controller item. Bring up the inspector window and change the Class Identity to point to your new class. That should take care of instantiating your class.
As this feels like a "newbie" question (please pardon me if I'm mistaken) I would also highly recommend the following article:
iPhone Programming Fundamentals: Understanding View Controllers
Helped me understand the whole ViewController thing and the IB interaction..
As for me with xcode 4.3.3, all I had to do was simply replace all references of 'MyAppViewController' with 'NewViewController' in the AppDelegate h and m files.
Perhaps all the other steps have been taken out in the newer versions of xcode.
Hope this helps.
I am pulling my hair out on this one. I have a NavigationController with two levels of TableViews. Each TableView is in its own NIB file. The first level simply displays a list. Upon selecting a cell, it takes the user to a second level TableView with a more detailed list. It is on this second level TableView that I want to display a search bar (actually I am using a SearchDisplayController as well). I have added it to the TableView because I want the SearchBar to scroll with the table.
Below, I am displaying two screenshots. The first is the second level tableview in InterfaceBuidler. The second is the second level tableview at runtime. For some reason, the SearchBar doesn't display at runtime.
I have tried creating a completely new project from scratch and the same things happens. I don't understand why the SearchBar doesn't display on a NIB pushed on the NavigationController.
Before you ask, if I put the SearchBar on the first level TableView, it shows up just fine. Yes, I am adding it to the TableView itself, so it is a part of the view that should be displayed.
Help! What am I doing wrong?
This is what actually displays after the XIB is pushed...
Okay, I'm going to have to answer my own question. I thought about deleting it, but perhaps this could help someone else. I really pulled my hair out on this one. It wasn't because of anything I was doing wrong so much as a fundamental misunderstanding of how iPhone development works.
In a nutshell, the problem was with this line of code, which instantiated the TableViewController:
self.downloadDetailViewController = [[DownloadDetailTableViewController alloc] initWithStyle:UITableViewStyleGrouped];
When you use XCode to create a new class, you can use the following:
"Add -> New File -> Cocoa Touch Class -> UIViewController subclass -> UITableViewController
subclass AND With XIB for user interface"
The problem is that the NIB has absolutely nothing to do with the UITableViewController until you tell your code to use it. To me, this seems like a bug in XCode or at the very least something that is counterintuitive. When the development environment creates all three files together, it would only make sense that they would work together, but they don't.
Instead, the solution is to modify the line of code as follows:
self.downloadDetailViewController = [[DownloadDetailTableViewController alloc] initWithNibName:#"SecondaryView" bundle:[NSBundle mainBundle]];
Hopefully this can help someone else...
You could also set Nib Name property on your Download View Controller under the Tab Bar Controller, in fact that and coupled with setting the class with your class name will automatically create the view for you and you don't have to manually create it.
I think the problem is that you are adding the searchbar to the tableView, so it is not displaying.
Try to add that searchBar with out adding to the table view, that means move the table view some what down and add the search bar to the view(not the tableview).