iphone

Why does this code example on Apple's dev site declare three interfaces for the same class?

I'm diving into iOS development while trying to grasp Objective-C and I'm still in that phase where, ever where I look, I see things that don't make any sense to a veteran C programmer like myself. In this Game Kit example on Apple's dev site, one of the header files declares a class interface, three different times... @interface Sessi...

iPhone app: How to display formatted text?

I need to display some simple formatted text inside a small section of a View. The background needs to be transparent because there's a background gradient image. How I should I go about this? Maybe the Web View control will do the trick? thanks ...

Metal shading (like silver) on iphone opengl?

Hello Does anyone know a tutorial hat explains how to shade an object to look like silver metal? (on iphone)? Maybe starting with a spere like in this: http://iphonedevelopment.blogspot.com/2009/05/opengl-es-from-ground-up-part-5-living.html Or can this not be accomplished without the new shaders in 2.0? Thanks Sebastian ...

Don't worry about `retainCount`? Really?

I've been told to not worry about retain counts. I understand that I shouldn't decide to release or retain using conditional logic based on retainCount, but should I not worry about it? I thought these correspond to memory usage in some way. For instance, if I have a bunch of subviews of UIView that I've also put into an NSArray to be a...

xcode project-/target-settings-syntax for linker flag force_load on iPhone

Hi all. I am confronted with the double bind, that on the one hand for one of the 3rd party static libraries, my iPhone application uses, the linker flag -all_load has to be set in the application project- or target settings, otherwise the app crashes at runtime not finding some symbols, called internally from the lib, on the other hand...

Xcode - SenTestingKit not found

Hi all, I have an issue that popped up when I upgraded my version of xcode. I use unit tests, and I now when I try to import SenTestingKit (#import <SenTestingKit/SenTestingKit.h>), I get this error: SenTestingKit/SenTestingKit.h: No such file or directory. I have looked at my build settings, and I have the following configuration op...

Adding attendees to EKEvent

Is there a way to set the attendees of an EKEvent (Event Kit Framework)? I will create a new EKEvent, but it seems that there is no way (in the public api) to set the attendees. Does anybody know a workaround? ...

pass string to emailbody (iphone)

hi hopefully a simple question for anyone who knows what they are doing... I have a string variable with user input text. I then bring up a email view based on Apples example MailComposerViewController and I want the text to populate the body of the email. In as simple as possible terms how do I get the string variable into emailBody...

UIBarButtonItem has a too large clic area

Hi, I know some have already asked the question but so far, the answers are not really specific. Aparently apple have made the clic area of the NavigationBar larger than it really is, but I don't think it's supposed to be that large. In my app, there is a TableView right underneath the NavBar and you can clic all the way down to half ...

What resolutions should iOS graphics be?

What pixels per inch settings do iOS 4 graphics need to be to support the high resolution display? Should I just use the standard 72, or should I specifically make images that are 320x480@163ppi and 640x960@326ppi? Or, should I just make images those dimensions and not worry about the resolution (i.e. leave it at the default 72)? I'm no...

MGTwitterEngine on IOS 4, check if token is valid and get user name from it (the token)

I incorporated MGTwitterEngine in my iPhone app, with basic authentication, and have since incorporated Facebook Connect's classes for iPhone. I'm now trying to move to XAuth with MGTwitterEngine and OAuthConsumer, and I would like the user to have the same flow when tweeting as when posting on Facebook. With Facebook Connect, I can use...

Purchase physical product from iPhone app without Apple in app purchase

Can an iPhone app allow a user to purchase a physical product (say a pen or a mouse) from inside an app, without using Apple in app purchase? Is it allowed by Apple? If yes, do you know any API that supports this? Thanks AJ ...

How can I prevent default double-tap behavior (zooming, panning) in Mobile Safari on iOS4?

When I double-tap near the edge of a page that exceeds the height or width of the browser window in Safari under iOS4, it zooms in or out and/or scrolls up, down, right, or left, depending on the size of the page and the current viewport position. How can I prevent this behavior, please? I'm working on a site where this is (very) bad; ...

ShareKit and TwitPic

Heya has anyone tried out sharekit www.getsharekit.com Im looking for a simple plug n play way to get photos to twitter. Let me know if anyone has achieved this. ...

HTTP POST request not working over 3G

Hi there, When making the following HTTP POST request: NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url]; [request setHTTPMethod:@"POST"]; NSURLResponse *urlResponse = nil; NSError *error = nil; // execute NSData *responseData = [NSURLConnection sendSynchronousRequest:request returningRespons...

SQLite database cached due to SVN.

My iphone application uses Core Data and a SQLite database; versions are being tracked using SVN. Adding data to the database is not reflected in the application. I make sure I delete the project out of the simulator and that the new database is added as a file to the project. I suspect the data is being cached in another location. Ple...

Adding Multiple Items of Same Relationship to UIPasteBoard

I figured out how to add/retrieve single strings to the UIPasteBoard, but I am confused on setting up the NSArray and adding/getting separate strings of the same relationship. Any help would be appreciated. ...

how to compare 2 strings

i have two strings initialised with using nsstring *name1,*name2... how to compare these ...

NSNotification, not receiving callback

Can't figure out why I'm not getting my callback - any advice? -(void) playMovieWithURL:(NSURL *)url { [currentVC.view removeFromSuperview]; MPMoviePlayerViewController *movieControl = [[MPMoviePlayerViewController alloc] initWithContentURL:url]; //register for playback finished call [[NSNotificationCenter defaultCent...

Alpha addition in fading UIView and UIImageView

I feel like this ought to be simple, but after searching high and low I can't find an answer to my question. I'm developing page swiping funtionality similar to Mobile Safari, where one page will fade out as it is swiped out of view and the other page fades in. Each "page" is a plain, white UIView with a small UIImageView, displaying a...