I tried to do it, but Interface Builder refuses to open the resulting file:
alt text http://img81.imageshack.us/img81/7194/screenshot20091102at252.png
"Interface Builder was unable to determine the type of [file name]"
To answer your question (as you put it in the title): Yes, it is. I did it with TextWrangler for a test (moved a widget) and it works like a charm.
I suspect, you also changed something else (encoding, file name) when you were editing the file. You should try it again with a copy of the xib and do a diff between original and result.
It is possible. Just the task's complexity is approaching the complexity of writing an web app in assembler.
Joking. It's highly not recommended. I think this Xib is not your and Interface builder is just not allowing you to use it.
While the XML format of XIB files is intended to be somewhat human readable, XIB files should never be edited by hand. While the file may appear mergable, the object graph is complex and cannot be maintained except when edited within Interface Builder.
Even if it appears to work, this is unsupported and could lead to more complex problems down the road. It is better to instead file enhancement requests on Interface Builder to provide the capability you need, rather than try to hand edit the XML.
Related
Why am I still getting this error when I run my iPhone app? The file is a ViewController that I have been working to delete and replace, but it just won't die. As far as I know, I don't have any reference (string or otherwise) to this file in my project.
I have deleted the related file (I'm trying to get rid of it.)
I have cleaned the project and rebuilt.
I have "Reset Content and Settings" in my simulator.
I have done a grep (grep -i -r "TheClassName" *) and nothing matches except my UserInterfaceState.xcuserstate file.
I have searched the code using XCode's Find/Replace tab.
I have double checked my Build Phases and am pretty sure it isn't in there (its a large project).
Any other ideas? I've spent way too many hours trying to figure this simple thing out; I must be missing something.
Thanks!
Check your nibs or storyboard, and make sure none of your views are set to the class!
I finally fixed the problem after trying it on multiple machines over the course of almost 2 days! I will not be thwarted!
I tracked the problem down to a call to setViewControllers on a UINavigationController which is called on initialization of the application. I was always being passed 3 objects (there are 3 panes in the navigation controller). Even though I had deleted the third object, as previously explained, three objects would always be passed in. The class type of the first two was correct, but the third would just be a UIViewController. Curiously, this view controller had a nibName which corresponded to the object file and Xib file that I had previously deleted. Of course, when view was called on this borked UIViewController, it would crash since the corresponding nib had obviously been deleted. Remember, the textual name of this object or Xib could not be found in my directory with grep, so I have absolutely no idea how in the world it came into existence when I ran my app.
So, I figured the app may not have been cleaned properly. I double and triple checked this. I even validated that my Workspace settings were correct (File->Project Settings->Advanced). The app was indeed being recompiled fresh every time.
Secondly, I started thinking that perhaps the object was being set by some other means. Working backwards, I added some breakpoints and found out that initWithCoder was being called on the parent UINavigationController--this was eventually working down to call the setViewControllers on the object and assigning the three view controllers (one of which was the offending one). I could easily see from the call stack that the Nib file that was being loaded was deserializing something offensive.
So, I started digging into my Xib file. Of course, the object name wasn't in the file (as expected since the grep didn't find anything). I deleted and recreated the portion of the Xib that included my root UINavigationController. This ended up changing the Object ID and ref within the Xib file.
Secondly, I created a new Xib and UIViewController with the same names as the one which I had previously deleted, hoping that Xcode might be happy if I created and then re-deleted them. I then compiled, re-deleted them, updated by Xib file yet again, reverified with grep that yes, indeed, nothing existed with that name.
And it worked. After spending multiple days on this issues, I'm fairly sure that there is a bug here in the interface builder, but do I want to revisit this problem to file a bug report? Absolutely not...
In my case, I solved an issue by name of Custom class name of View instead of Custom class of ViewController. By mistake i added like this for view as shown below.
It Should be for ViewController like this.
This is in my case, for you may be it's related with another component.
This happens when the view class is in a framework. Select the framework's module. Example with a CocoaPod: HSegmentControl.
Make sure when you add or rename or move files around especially in folders, that when you add them you:
A. Create Groups, not references they don't usually read in.
B. Check the boxes for the apporpriate "Product(s) or Target(s)" you want to add the source to.
Another thing to try :
I had to toggle "Inherit from Target" under the "Module" control of "Custom Class."
I created a new project of type Static Linked Library.
I have moved the code (previously working in the app) to the library leaving all the xib files in the app.
I have changed the export directory and added the library file from the derived data folder so it gets the compiled version and links to it.
I have added the library to the bundle and have verified it is in the app using iPhone Explorer
I have verified that the xib file recognized the new view type by removing and selecting the custom view type in the custom class field of the identity inspector.
I have changed all of the #import commands to reflect the <> VS "" change and have gotten the app to compile.
however none of the methods of my custom class can be executed. and an NSLog reports that the class is its base counterpart as opposed to the custom derived class.
I am at a loss and have spend a long time converting all the code I have to work in a library. I am hoping someone can help with this.
On this issue, it turns out that Objective C's compiler does not load the categories and custom classes in the libraries by default. There are 2 ways to overcome this.
And here are your options.
Create an Activation type method on the category that will be called to "Activate" that Class or Category. This will need to be done before the application loads any nib files. And seems like a bit of a pain in the butt. This was however how I originally overcame this issue.
Add linker flags that will tell objective C to load all libraries and attach any and all Categories and Classes within the libraries before executing the application. (this will need to be done, on top of #import(ing) the correct files from their correct locations. I will provide a graphic below. and provide the flags for search purposes
-ObjC is the first one I added, but -all_load really did the trick.
I hope that others can benefit from this experience.
i am searching for a way to parse a psd-layout to a nib-file or something like this. I want, that the designer builds a layout and slices this into the different elements. The result should be a ready-to-use XIB-File. ;-)
Are there any ideas how to realize this?
Thanks
You can ask your designer to name the difference slices using a specific nomenclature.
A possibility:
specific_name-class-x-y-width-height
e.g.
LoginButton-UIButton-60-200-120-40
Then a script parsing each file of your export folder will create your xib file which is nothing more than a XML file.
a simple way to do that could be using psd.js
But I think that it will be much simpler to teach your designer how to use Interface Builder ;)
I've heard about snippets (.jsx = javaScript??) which you can use for Photoshop. These scripts could export your images/layer/slices and change the name to their relative position. Maybe this information could be helpful for anybody.
This tutorial explains exactly how to automatically port a Photoshop PSD or Fireworks Layered PNG into an Xcode storyboard. With all your elements placed for you. http://www.youtube.com/watch?v=hB5PJgIrUko&sns=em
write your own photoshop script:
http://www.adobe.com/devnet/photoshop/scripting.html
or, use this service:
http://www.psdtoxib.com/
I was wondering if there is any way to directly manipulate the XIB/NIB files without the use of Interface Builder. I know its difficult but is there any way. Can you please tell me how can I do that or the internal structure or the documentations available on it? And will it be feasible or better in any other way.
Regards,
Vivek
Xib/Nib files are XML files, you can edit them with every Texteditor.
I wouldn't recomend that tough, if you want more controll over your app, simply create your views Programmatically. A little introduction for doing so might be: http://chris-software.com/index.php/2009/04/29/creating-a-view-programmatically/ further reading to remove nibs completely from your app:http://www.steili.com/wordpress/2009/02/25/building-an-iphone-app-without-interface-builder/
I'm trying to separate the views for the different platforms into different subfolders.
I have done this for the layout, at the moment I have the following:
class MoviesController < ApplicationController
layout :site_layout
def site_layout
if(iphone_request?)
"iPhone/movies"
else
"movies"
end
This means that in my action methods I don't need to include :layout, however I do still need to manually include the path to the template.
format.iphone {render :template => 'movies/iPhone/index'}
Is there a way to have the same kind of layout declaration but for templates?
Thanks
Ben
You may want to extend the view_paths so that you can have a special iphone subfolder under views and override templates as necessary. See this tutorial on how to do that.
However, is there a reason you don't want to use the iphone format in the view name (show.iphone.erb) instead of making a subfolder? See martinkl's answer in your other question for details.
I might be off, but maybe it'll help - try checking prepend_view_path.