I have an application with 5 UIViewControllers each inside a corresponding UINavigationController, all tucked inside a UITabBarController that displays 5 tabs at the bottom of the screen. I want to display another UIViewController (inside a UINavigationController) when a dialog button is pressed. This view should only be loaded and unl...
Objective-C 2.0 gave us @properties. They allow for introspection. They allow for declarative programming. The @synthesize and @dynamic mechanisms relieve use from having to write repetitive, stock accessors. Finally, there is the ‘dot’ property syntax, which some love, and some hate. That isn't what I'm hear to ask. Like any new fea...
My company is in the process of rewriting our software from scratch, and I'm the one who is going to be doing most of the work in rewriting the Mac client (The core of our software is Windows based, and the Mac client communicates with it through a webservice). This isn't a real heavy app, mainly does some background work tracking stuff...
I'm doing some text rendering in Cocoa using NSAttributedString, and setting the font and underline properties and all that jazz. However, I can't figure out how I can change the text's tracking. Any suggestions? ...
I am trying to create a delegate protocol for a custom UIView. Here is my first attempt: @protocol FunViewDelegate @optional - (void) funViewDidInitialize:(FunView *)funView; @end @interface FunView : UIView { @private } @property(nonatomic, assign) id<FunViewDelegate> delegate; @end This doesn't work because the FunView inter...
Is there a built in function equivalent to .NET's Guid.NewGuid(); in Cocoa? My desire is to produce a string along the lines of 550e8400-e29b-41d4-a716-446655440000 which represents a unique identifier. ...
I want to do a little development in OSX and the iPhone. I've been a .Net/C# developer for years. I was wondering if there was anybody that had experience in both platforms that could tell me how they compare and contrast. I'd like to get an idea of what sort of learning curve I've got ahead of me. Thanks, Geoff ...
I'm starting work on a project that will be primarily acting as a Sync Services client. Ideally, the project will have two components: a custom schema bundle and a preference pane. As a first step, I've created an Xcode project for the schema bundle. But now I find myself ready to start writing the code for the preference pane and the c...
If you put up an NSAlert while your app is in the background your dock icon starts bouncing and keeps on bouncing until you switch back. I find this annoying. Does anyone know how disable that for a single app? ...
What I am looking for is a way to programmatically verify a target object has been deallocated. Currently I have an NSLog statement in the dealloc methods of the objects I wish to observe. The unit testing framework is from the Google Toolbox for the mac, and it working nicely. I am just not certain how to frame this particular test. ...
A few weeks ago I started using Core Data for the first time in a non-trivial application. One of the things that surprised and confused me was how error handling works. To give an example, one of the first things I tried was setting my data file as "locked" in Finder, to order to make sure I was properly handling the NSError object retu...
Say I have entities organized in a hierarchy with Parent being the root entity and Child being a subclass of Parent. I'd like to setup an NSArrayController to fetch only entities of Parent, but not Child. If you set the Entity Name of the array controller in Interface Builder to Parent, it fetches all Parent and Child entities. I orig...
In a previous question, I asked about how to filter out subentities from a Core Data fetch request on an array controller. The answer is to customize the fetch request used by the array controller. It seems I can easily do this in one of two ways. First, I could customize the fetch request in fetchWithRequest:merge:error: - (BOOL)fet...
I'm going to use gSOAP to interact with a WCF webservice in my Mac project. It does pretty much exactly what I need and it does it well (pretty much the exact opposite of WSMakeStubs;)). The only downside is that it's C/C++ only, meaning I either need to convert all my types into C types on the fly or write a complete wrappering solution...
I am writing a text editor for Mac OS X. I need to display hidden characters in an NSTextView (such as spaces, tabs, and special characters). I have spent a lot of time searching for how to do this but so far I have not found an answer. If anyone could point me in the right direction I would be grateful. ...
Has anyone been able to use the SSCrypto Framework for Cocoa to encrypt text and then decrypt it in C#/.NET ? Or can someone offer some guidance? I'm pretty sure my issue has to do with getting the crypto settings correct but I am far from fluent in Cocoa so I can't really tell what settings are being used in the library. However my att...
Hello everyone, My application is a viewer for a custom format, a zip file with a well defined XML manifest and resources, such as images and movies. I use zlib to open up the zip file in memory and then proceed to display said resources. One problem I've ran into is that I'm unable to properly display videos, apparently because QTMov...
I am using several NSButtonCell objects in an NSTableView. They are simple square buttons with custom images on them. These buttons draw properly when they are not highlighted: all that is visible is the image, and the rest of the button rectangle is transparent. However, when I click on them, the entire button rectangle is highlighted,...
I am using Xcode to develop a GUI application. I have a model class and a controller class. I have a NSTextView data member in my controller class. How do I access this variable from the model class? ...
A class has a property (and instance var) of type NSMutableArray with synthesized accessors (via @property). If you observe this array using: [myObj addObserver:self forKeyPath:@"theArray" options:0 context:NULL]; And then insert an object in the array like this: [[myObj theArray] addObject:[NSString string]]; An observeValueForKey...