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  • Should i use a C function or Obj-C Method?

    - by Daniel Granger
    I'm about to create a function which adds to NSDateComponents together is there any advantage to putting this in a C style function or should it go in a Obj-C method? Is there ever a reason to use one rather then the other or should I always stick to Obj-C? BTW: Not that it makes any difference I'm sure but this is for an app on the iPhone Many thanks

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  • Customizing the post to facebook in Sharekit2.0

    - by laksh
    I have integrated the latest code in sharekit into my project. I am able to click in to go to the facebook and able to see the text i am going to post. The image looks like this: I would like to change two things. Firstly, I am not able to see the cancel or post button because of my app picture at top. So i would like to set the view to be scrollable. How do i change that? Secondly, I would like to remove the keyboard after i press return, or i want a way to remove the keyboard. Need some help on this..Thanks..

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  • class NSCFData autoreleased with no pool in place

    - by iSight
    Hi, I have converted my NSString into string, and returning the same but the above error mentioned in the title is printing on console. Please suggest so that i could get away from this issue. my code is below: string stringFromNSString(NSString *inNSString) { return [inNSString UTF8String]; }

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  • Validate NSString

    - by Chris
    I am validating an NSString to ensure that the string does not contain apostrophes. The code I'm using to do this is NSCharacterSet * invalidNumberSet = [NSCharacterSet characterSetWithCharactersInString:@"'"]; NSScanner * scanner = [NSScanner scannerWithString:string]; NSString * scannerResult; [scanner setCharactersToBeSkipped:nil]; [scanner scanUpToCharactersFromSet:invalidNumberSet intoString:&scannerResult]; if(![string isEqualToString:scannerResult]) { return 2; } Returning 2 represents an error. This code works, except for the case where the string is an apostrophe. To get around this issue, I added the following code above the preceding block. if([string isEqualToString:@"'"]); { return 2; } This code is evaluating to true, regardless of the input. I need to either prevent the first block from crashing with the input of ', or get the second block to work. What am I missing?

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  • Are UIView's in TableViewCells cause for performance problems?

    - by iFloh
    Hi, I have a UITableView of UITableViewCells that so far performed well. I now aded a simple UIView to my UITableViewCell as a color indicator (backgroundColor only, no other content or attributes). Running the tableview again I realise scrolling is not as smooth as it used to be. The tableView suddenly also takes long time (~1+ secs) to come back again when returning from a subview (e.g. return from the view that gets pushed upon selection of a cell). Any ideas why the added UIView would be problematic? Why are the labels (being a subclass of UIView) not cause for similar issues?

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  • How to step inside NSManagedObject; access individual attributes.

    - by user300972
    NSManagedObject *entryObj = [self.fetchedResultsController objectAtIndexPath:indexPath]; entryObj consists of four String attributes. If I NSLog entryObj, I get the information I want. I cannot figure out how to access each of these properties individually. I read a similar post where the solution was to call "entity." I cannot figure out how to use "entity" to access a specific attribute. Any ideas? References? Tutorials? Thanks in advance.

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  • require user to login in at login screen before giving access to iPhone app that accesses secure web

    - by MikeN
    On iPhone, how do I show a login screen to get username and password before giving access to iPhone app? Also, does the iPhone store a cookie to the secure website like a web browser? I was thinking of giving users to my website a long API key to store in the settings of their iPhone instead of asking them to login with a username/password (seems to be the Slicehost iPhone app approach.) Which is the best way to get a user to login securely? I have full control over the design of the iPhone app and website so have a lot of flexibility.

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  • My application crashes on device

    - by Fazalyazdan
    hi i am new to iphone development and currently i am working on client server applications but the application run and work good on simulator but when i try it on device then the application crash after some times .Now i dont know why this will happend because i release every object which are decalre with alloc or init.but still crash on device . My application are like (Rate My puppy application)which are store on apple store . please help me if any one have the solutions .

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  • Search within HTML files

    - by SKk
    Hi Forum, In my iPhone project,I have number of HTML files having different textual and image contents within each file. I need to implement search facility which would return results (HTML file names) having matched keyword. Can anybody have any clue, how can I achieve this? Thanks

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  • Hide uiview, but not it's subview?

    - by Malene
    Hi! I have an app where i add ViewB as a subview to ViewA... But the background of ViewB is clearColor, which means that I can see ViewA through ViewB! If I set viewA to be hidden, ViewB goes away too! I am making a "flip-transition" between the views, so I can't just remove ViewA and then add ViewB :-/ -Anybody got an idea about what I can do? Here's my code: [UIView beginAnimations:nil context:nil]; [UIView setAnimationDuration:1.0]; [UIView setAnimationTransition:UIViewAnimationTransitionFlipFromRight forView:mainTableView cache:YES]; [mainTableView addSubview:subTableView]; [UIView commitAnimations];

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  • is there any way to get country names from iPhone APIs?

    - by chiemekailo
    Hi, I want to provide a picker to the user to select a country. I've had a look in the NSLocale docs and I can get a list of all of the country codes supported on the device, which feels like a start: Code: NSArray *codes = [[NSArray alloc] initWithArray:[NSLocale ISOCountryCodes]]; But I can't work out if there is a programatic way to convert this array into country names... Ideally this list would be localized as well, i.e. show the country name in the user's preferred language. Can anyone point me in the right direction?

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  • How to create a NSPredicate to find entries with leading numerical value?

    - by Toastor
    Hello, I'm using NSPredicates to fetch entities based on a name attribute. Creating a predicate for names beginning with letters was easy (@"name BEGINSWITH %@", searchLetter), however now I'd like to fetch all entities with a name that begins with a numerical value, or rather a non-alphabetical number. What would be the appropriate predicate expression here? Right now I don't want to get too deep into predicate programming, as this is all I need right now and time flies. So, please, don't point me to the Predicate Programming Guide, I just need that expression.. :) Thanks alot guys!

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  • Adding the scrollview created by photoscroller to a subview

    - by wierddemon
    I'm trying to modify Apple's PhotoScroller example to make the scrollview that is created into a subview instead of it being a view that takes up the entire screen. Any ideas on how this can be accomplished? - (void)loadView { // Step 1: make the outer paging scroll view CGRect pagingScrollViewFrame = [self frameForPagingScrollView]; pagingScrollView = [[UIScrollView alloc] initWithFrame:pagingScrollViewFrame]; pagingScrollView.pagingEnabled = YES; pagingScrollView.backgroundColor = [UIColor blackColor]; pagingScrollView.showsVerticalScrollIndicator = NO; pagingScrollView.showsHorizontalScrollIndicator = NO; pagingScrollView.contentSize = [self contentSizeForPagingScrollView]; pagingScrollView.delegate = self; // When I do this it fails [self.view addSubview:pagingScrollView]; // Step 2: prepare to tile content recycledPages = [[NSMutableSet alloc] init]; visiblePages = [[NSMutableSet alloc] init]; [self tilePages]; }

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  • iPad View Rotation Duration

    - by federivo
    Hi everyone! When changing the orientation of the iPad, my app rotates its view very fast. It is difficult to perceive the transition between both orientations. I would like to increase a little bit the duration of this transition. Does anyone know how to increase the duration of this transition? Thanks!

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  • Question About Classic MVC

    - by kernix
    Hello, In classic MVC the model notifies the view about changes made on it. In C# this means I have to subclass the View I'm interested in and in the subclassed class register to the model's event. For example, if I were to implement MVC using C# and Winforms, I had to subclass TextBox class and then register inside the MyTextBox's constructor for the model events. Am I correct? How was this issued in Smalltalk? Does one also need to subclass every View in order to register the model's events, or is there some way to dynamically add events to the views on the fly? Thanks

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  • Cocoa: NSUserNotification appears behind NSPopover

    - by Elbimio
    I have no idea where to even start trying to fix this but maybe someone can point me in the right direction. I have a status item application that shows a popover when clicked, some user interactions produce an NSUserNotification to warn/inform about changes or errors. But when the notification appears it is shown behind the popover, so if they overlay the user can't read what it says. Is there a way to force the notification to appear in front of the popover? Like order the notification to the front. Thanks for the help.

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