I have several .png images (ETA: but the format could also be JPEG or something else) that I am going to display in UITableViewCells. Right now, in order to get the row heights, I load in the images, get their size properties, and use that to figure out how high to make the rows (calculating any necessary changes along the way, since mo...
I have 3 general questions related to the usage of xCode. Any help would be greatly appreciated please: Whenever I open documentation, the left content/index column is always small and I have to drag it wider. Is there a way to permanently set its size? Is there a way to perform a wildcard search and replace e.g. I have 3 lines: var1Le...
Hi Everyone: I am wondering if there is some way to find people that are near you using data supplied by the Core Location Framework. If you can get the other person's CLLocation's description attribute, I assume there must be some way to compare this in terms of location to your location. Thanks for any help. ...
I'm rather confused about properties and instance variables in Objective-C. I'm about half-way through Aaron Hillegass's "Cocoa Programming for Mac OS X" and everything is logical. You would declare a class something like this: @class Something; @interface MyClass : NSObject { NSString *name; NSArray *items; Something *so...
Can a Cocoahead please explain why UIView and it's sub classes don't adopt the NSCopying Protocol? I can see, philosophically, why UITouch would not be copy compliant, as it's a very temporal object. By UIView, and it's subclasses, especially UIButton, seem like they should be able to be copied. Certainly Apple has good reasons for do...
Hi Everyone: I am wondering if there is some way to create and send VCards based upon the iPhone Address Book information from my own app. On the Mac, there is some easy function in the built in app to do this, but I have not seen something on the iPhone like this. So, is there some framework or otherwise that enables me to turn conta...
Title pretty much says it all, I want to know how to have a multi-line label on a UIButton. ...
I'm doing this to load an image into a tableview cell: UIImage *image = [UIImage imageNamed:@"myimage.png"]; UIImageView *imageView = [[UIImageView alloc] initWithImage:image]; imageView.frame = CGRectMake( 0, 0, cell.frame.size.width, cell.frame.size.height ); imageView.contentMode = UIViewContentModeScaleToFill; [cell addSubview:image...
In my application, I'm displaying a fullscreen image in a 320 x 480 frame. After I display the image, I fade the navigation bar out to allow the user to see the whole picture. When the user taps in the area where the navigation bar was, I would like to bring the navigation bar back. This is very similar to what happens in the iPhone Pho...
This seems like it should be simple but I can't work out how to do it. I've created a UITextView in interface builder. It doesn't sit in a table cell or anything fancy like that. What I'd like to do is have the UITextView scroll itself to the left when the user has typed their way all the way to the right margin. At the moment it jus...
Hi, I'm animating the center property of a view in my program. During the animation, I need notifications when center hits a particular value. I tried adding the myself as a key value observer for the center property of the view . However, I only get notified when the animation begins. So I'm unable to detect if/when the object passes ...
I have a NSManagedObject subclass, created by the XCode model interface. This class has some NSString and NSNumber members, and a NSDate member. When I try to set the NSDate member, I get the following exception: 2009-10-12 21:53:32.228 xxx[2435:20b] Failed to call designated initializer on NSManagedObject class 'Item' 2009-10-12 21:53:...
Using the following doesn't work: - (NSString *)stringByReplacingOccurrencesOfString:(NSString *)target withString:(NSString *)replacement By doesn't work I mean does not do any replacement what so ever. It returns the same exact string. Is there a convenience method to do this? Similar to: - (NSString *)stringByReplacingPercentEsca...
Hi, I have a problem where my UITableView (group style) has a black "tip" above it's rounded corner. I'm setting up the background of the tableview like so: [meetingTableView setBackgroundColor:[[UIColor alloc] initWithPatternImage:[[UIImage alloc] initWithContentsOfFile:@"background.png"]]]; And my table view ends up looking like th...
EDIT: I originally asked this question in regards to general view resizing, but I realize now that it's something much more specific to tableViews. Say that a tableView originally has a frame of (0 0, 320 460), i.e., it fills an entire iPhone screen. In order to resize the tableView's height and animate the resize, I map the following ...
Hello, is it possible to create a UIToolBar containing UIBarItems with both, images and titles for better explaining the function behind the item? A UITabBar is designed to select 1 of n items. The current item is highlighted. This is not what I need. I'm needing to call a function without selecting the current toolbat item! ...
Hello, I'm very new to cocoa touch and am stuck on a problem that doesn't seem to have a google solution. I have added a view to my application, and this view has a button on it. When the button is pressed I want the callback to perform an operation. My problem is that the callback isn't being called. I created the view in Interface...
I have an application that will use Core Data. I've added the Core Data framework to the linked library list in XCode. In one of my classes, I try to set up the NSManagedObjectContext along with the other required classes as folows: @interface MyClass : NSObject { NSManagedObjectModel *managedObjectModel; NSManagedObjectContext...
I need to know if two NSDate instances are both from the same day. Is there an easier/better way to do it than getting the NSDateComponents and comparing day/month/year? ...
I'm following this how-to to implement Core Data storage in my app: I have a Model.xcdatamodel which defines a Something model. I've used XCode to generate a class for that model. I've imported the class in my .m file where I'm trying to: Something* s = (Something *)[NSEntityDescription insertNewObjectForEntityForName:@"Something" inM...