My company is evaluating the possibility of developing set of tools for Objective-C extending Xcode default functionality(basically we are thinking about providing better navigation,semantic search, more refactorings, quick fixes, improved code completion (visual assist inspired). So we would like to ask XCode/Objective-C developers: ...
trying to find absolute value and i thought there was a simple way to just invert the sign with '~' or something. ...
In a seemingly never ending effort to learn more about iphone development, I have been playing around with some of the source code available through apples developer website. The particular example I am working with is Core Data Books, found here. The DetailViewController, and the AddViewController are made programatically, because there...
In objective while using the the coredata concept we need to create the splite as persistent store or it will created automatically ? ...
I have started my application and now I want to add Core Data to my app. How can I add it? ...
Hi everyone. I heard lazy loading technique quite helpful to increase the performance of the programme. I am developing games for iPhone. I am not sure how is the way to apply lazy loading in objective C. Could anyone show me the example please? Thanks in advance ...
hi, is it an possible to add a value from an NSMutableString into an NSArray? Whats the snippet? ...
Hi All, I am trying to parse an RSS XML feed. I have figured out how to parse what's in the tags for the individual stories, but I cannot figure out how to get the name of the entire feed (for example "CNN's News Feed"). I think it's in and I've tried a ton of things but I can't figure it out. Below is part of my parsing code that I...
I am using the iPhone SDK and Objective-C and I get this error message: Assertion failure in -[UITableView _endCellAnimationsWithContext:], /SourceCache/UIKit/UIKit-984.38/UITableView.m:774 2010-01-08 13:24:16.842 MyAPP[628:20b] Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'Invalid update: i...
I am doing coredata app and i want to add the some data in TwitterClient.sqlite but it is created automatically in my appdelegate file like below . how can i add some data in coredata app. - (NSPersistentStoreCoordinator *)persistentStoreCoordinator { if (persistentStoreCoordinator != nil) { return persistentStoreCoordinato...
I've implemented an save on applicationWillTerminate and load on applicationWillFinishLoading. There is a complete object tree, all implement the NSCoding protocol and I've check the types I enter. One of the classes also stores an NSMutableData to the NSKeyedArchive, which I suspect might break unarchiving occasionally. Weirdly enough,...
Hello Everyone! How can i do this? I know ho to do this on windows, but here.. im newer )) SDK: Mac OS X 10.5 ...
I have a simple question about creating multiple initialisers within an objective-c class. Basically I have a class that represents a single row in my database (users). I currently have an initialiser which initialises the class based upon the users UserID (which is also the primary key within the database), when passed the UserID the cl...
Hi there I am working on an iPhone app in which I am calling a web service in my app for accomplishing the same I am creating a NSURLConnection the parsing of data is based upon the response of connection delegate's didReceiveResponse: method. I would like to halt the execution of my code until I get any response from my service but I a...
I am trying to "uncenter" the map view and remove all annotations. the reason for this is that the mapView will be used by different view controllers to display different annotations and locations. What's happening now is that i am using the "remove annotations" method and i removes them, but the map stays centered on the spot and thus w...
There are 5 cells and each cell has one dynamic label. the height of cell is defined as per label content using heightForRowAtIndexPath method. Now, 3 cells are being displayed. When I scroll for next cells then cellForRowAtIndexPath is called once and In the output any one (4 OR 5) cell is displayed correctly but another has 1st cell co...
What I am looking to do is set the background color of the selected row in an NSTableView when a I button is clicked. I've seen other cases where people have used tableView:willDisplayCell:forTableColumn:row: and setBackgroundColor: but I don't think that will work in my situation where I want it to happen when a button is clicked. I kn...
In a navigation controller app, assuming you've assigned a title to the root controller, the pushed view will have a back button with that title in the top left of its navigation bar. That is automatic. How can I execute code based on the click event of that back button? ...
I have a class MyClass. I am exaggerating here, but let's say MyClass has 1000 instance variables. I then create a subclass called MySubClass with all the instance variables MyClass has, plus one more. Question: given an object MyObj of class MyClass, is there an easy way to create a corresponding object MyDerivedObj of class MySubC...
Just as background, there are no compile-time errors or warnings in the subject project "Project". There are numerous occurrences of using the same instance variable name in two (or more classes). In the following, I'll use the variable name "index" as an example. It appears as an instance variable in class1 and class2. The variable ...