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  • how to hide some properties using ABPeoplePicker

    - by user321130
    greetings! when using peoplePickerNavigationController:(ABPeoplePickerNavigationController *)peoplePicker shouldContinueAfterSelectingPerson:(ABRecordRef)person, a view with all of the contact's information is shown. I've seen apps which only display selected info only (e.g. phone numbers) how can I do this? I only want to display the contact's name and phone numbers. thank you very much

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  • Assign TableView column binding to a specific core-data object in to-many related entity based on se

    - by snown27
    How would I assign a column of a TableView to be a specific entry in a Core Data entity that is linked to the NSArrayController via a to-many relationship? For example Entity: MovieEntity Attributes: title(NSString), releaseDate(NSDate) Relationship: posters<-->> PosterEntity Entity:PosterEntity Attributes: imageLocation(NSURL), default(BOOL) Relationships: movie<<--> MovieEntity So I have a three column table that I want to display the Poster, Title, and Release Date attributes in, but as one movie could potentially have several different style's of posters how do I get the poster column to only show the one that's marked default? Since the rest of the table is defined in Interface Builder I would prefer to keep it that way for the sake of keeping the code as clean as possible, but if this can only be done programmatically then I'm all ears. I just wanted to give preference in case there's more than one way to skin a cat, so to speak.

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  • How to avoid "incomplete implementation" warning in partial base class

    - by garph0
    I have created a protocol that my classes need to implement, and then factored out some common functionality into a base class, so I did this: @protocol MyProtocol - (void) foo; - (void) bar; @end @interface Base <MyProtocol> @end @interface Derived_1 : Base @end @interface Derived_2 : Base @end @implementation Base - (void) foo{ //something foo } @end @implementation Derived_1 - (void) bar{ //something bar 1 } @end @implementation Derived_2 - (void) bar{ //something bar 2 } @end In this way in my code I use a generic id<MyProtocol>. The code works (as long as Base is not used directly) but the compiler chokes at the end of the implementation of Base with a warning: Incomplete implementation of class Base Is there a way to avoid this warning or, even better, a more proper way to obtain this partially implemented abstract base class behavior in Objc?

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  • iPhone - nested views & controllers

    - by codemonkey
    Is it possible to have a single iPhone screen with its view loaded from a xib by that screen's UIViewController, but then another UIView within that screen with content loaded from a separate xib file? If so, is it possible to have that nested view's events handled by a separate custom UIViewController subclass from the rest of the screen? If both of these things are possible, are they also advisable?

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  • How to play sound automatically when scrolling to the next page?

    - by viper15
    I'm using Page Control example from Apple. I want to be able to scroll horizontally to certain page and get the sound automatically play when viewing that page? And then sound stop when viewing the other page? So, for example. On page 1, i have some texts. When i go to the next page which is on page 2, i want sound to be automatically play and stop when i go to page 3. I'm planning to use If statements (since it's not that many pages) to determine which page will get the sound. My question is simple. How do you get the sound play automatically when viewing certain page? By the way, I'm planning to use System Sound. I know how to play the sound using button. But how do you get it automatically - start when certain page appear and stop when moving to the next page. Thank you in advance! Edited: I put in this code in ViewDidLoad but the sound played on sooner before it reach the page intended: // Set the label and background color when the view has finished loading. - (void)viewDidLoad { pageNumberLabel.text = [NSString stringWithFormat:@"Page %d", pageNumber + 1]; self.view.backgroundColor = [MyViewController pageControlColorWithIndex:pageNumber]; if (pageNumber == 3) { NSString *path = [[NSBundle mainBundle] pathForResource:@"crunch" ofType:@"wav"]; SystemSoundID soundID; AudioServicesCreateSystemSoundID((CFURLRef)[NSURL fileURLWithPath:path], &soundID); AudioServicesPlaySystemSound(soundID); } }

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  • Image Size for Animation!

    - by taimur-hamza
    Hi Everybody, I m new to iphone app development and i need some help. I have a list of 30 images that i have to animate and display with 0.1 second interval. I put all the images in an Array using this imageletter.animationImages = [NSArray arrayWithObjects:[UIImage imageNamed:@"1.png"], ...... ,nil] And then animate it using these statements, [imageletter setAnimationDuration:16]; [imageletter startAnimating]; [NSTimer scheduledTimerWithTimeInterval:mytime target:self selector:@selector(StopAfterCertainTime) userInfo:nil repeats:NO]; Now the problem is that the size of each image is 8kb , it runs fine on iphone simulator but crashes on device. When i used 30 other images of 4kb each it runs fine both on simulator and device. Can anybody tell me what is the ideal size for such kind of task. Thanks

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  • NSRegularExpression for stripping HTML Tag

    - by Prazi
    I am developing a ebook reader app. I have the .ePUB file for the entire ebook where in each topic of the ebook is a html file. I want to implement the search functionality in the app. I am using NSRegularExpression class for searching. Please consider the following html code: <temp> I am temp in tempo with temptation </temp> Say for example in the above html code I just want to search for the word temp. Now in above code temp is appearing 5 times - <temp> </temp> temp tempo temptation. I am looking for a regular expression where I can only extract the whole word "temp". I don't want to consider the word temp in the html tags <temp> </temp>. I also don't want the word tempo and temptation to be considered. Thanks in advance

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  • NSString potential leak

    - by VansFannel
    Hello. When I build and analyze my project on XCode, I obtain a 'warning' on the following line: NSString *contactEmail = (NSString *)ABMultiValueCopyValueAtIndex(emailInfo, 0); The message is: Potential leak on object allocated on line ... and stored into contactEmail. Is there any error on that line? UPDATE I get the same 'warning' with this line of code: ABMultiValueRef emailInfo = ABRecordCopyValue(person, kABPersonEmailProperty); But here, I can't do this: [emailInfo release]; I'm developing for iPhone.

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  • touchesEnded:withEvent: from UIScrollView First Responder

    - by Matthew Mitchell
    I've made a UIScrollView the first responder. I need to maintain touch events to a touchesEnded:withEvent: method on a view behind it. I've tried using the nextResponder method and that failed. I've tried forwarding touchesEnded:withEvent to the view behind it and that fails. How do I get this to work? The UIScrollView wont work unless it is the first responder or gets events some other way. Thank you for any help. Shame Apple's documentation and APIs are terrible in areas.

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  • How to change the title bar of a window in Mac OS X

    - by macdever
    I am trying to change the titlebar of a window in Mac OS X. To be specific I am trying to this with firefox. And I want to draw/put a bitmap on the title bar and also min, max, and close buttons. Also I found this file which might be helpful: http://people.mozilla.com/~chofmann/l10n/tree/mozilla/widget/src/cocoa/nsCocoaWindow.mm I can see that they have the code to do custom shading or color change. Thanks

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  • UITextView or UIWebView with normal words looking like links

    - by diwup
    Hey guys, I was looking at the Twitter for iPhone app and was puzzled. First of all, there are normal words looking like links inside. Second, when I touch those link-like words, the text view (or maybe web view) jumps to the corresponding part below (yes, it doesn't open Safari, it just jumps to the text within that text/web view) Now I want to implement the same effects. I should base my implementation on what? UITextView or UIWebView? How to make normal words look like links? How to make those smooth jumps within such a text/web views? Thanks in advance.

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  • iPhone Application failing to come back from sigkill

    - by overscore
    I have no idea if this is intended behaviour, but whenever the application exits (say, the user is double-clicking the home button and pressing on the red dash on the icon) I get the dreaded SIGKILL. Now, when I try to launch the app again all I get is the old screen state and a frozen (I presume ?) program. It could be because of clunky memory management, but NSZombieEnabled doesn't seem to agree. Any thoughts ?

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  • Can you append a NSMutableArray to a file?

    - by Emil
    Hi. I am trying to write some data from an NSMutableArray to a plist, while keep the old plists content. The function writeToFile:atomically: overwrites the old contents with the new, I want to append the objects in the new array to the plist. How can this be done? Thank you.

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  • CFPreferences creates multiple files

    - by Nobik
    I have only a little question: Why the CFPreferences-API creates multiple files in my UserPrefs-Directory? All the files have my Bundle-Identifier as name and all (except the one, the original) have added a suffix like this: com.myComp.myApp.plist <- (only this plist-file should be created) com.myComp.myApp.plist.0qzcicc com.myComp.myApp.plist.8dhjfht

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  • Issue Displaying/Hiding Views (Obj-C iPhone Programming)

    - by roswell
    All right all, So I've got a UITableView that is inited in applicationDidFinishLaunching like so: [self showForumList]; Said method does this: -(void)showForumList { ForumList *fl = [ForumList alloc]; [fl initWithNibName:@"ForumList" bundle:[NSBundle mainBundle]]; self.ForumList = fl; [window addSubview:[self.ForumList view]]; [fl release]; }where self.ForumList is previously defined in the interface as ForumList *ForumList;, etc. Now, in ForumList (itself an extension of UITableViewController obviously), I've got didSelectRowAtIndexPath: -- within it I have the following code: Forum *f = [Forum alloc]; NSArray *forums = [f getForumList]; NSDictionary *selectedForum = [forums objectAtIndex:[indexPath row]]; NSString *Url = [selectedForum objectForKey:@"url"]; NSString *Username = [selectedForum objectForKey:@"username"]; NSString *Password = [selectedForum objectForKey:@"password"]; NSLog(@"Identified press on forum %@ (%@/%@)", Url, Username, Password); [self.globalDelegate showForumListFromForumUsingUrl:Url username:Username password:Password]; [self.globalDelegate closeForumList]; NSLog(@"ForumListFromForum init"); Both of the NSLog calls in this function are executed and perform as they should. Now, here is where the issue starts. self.globalDelegate is defined as AppDelegate *globalDelegate; in the Interface specification in my header file. However, [self.globalDelegate showForumListFromForumUsingUrl:username:password] and and [self.globalDelegate closeForumList] are never actually called. They look like so: -(void)closeForumList { NSLog(@"Hiding forum list"); [[self.ForumList view] removeFromSuperview]; } -(void)showForumListFromForumUsingUrl:(NSString *)Url username:(NSString *)Username password:(NSString *)Password { NSLog(@"Showing forum list from forum"); ForumListFromForum *fl = [ForumListFromForum alloc]; [fl initWithNibName:@"ForumListFromForum" bundle:[NSBundle mainBundle]]; [fl initFromForumWithUrl:Url username:Username password:Password]; self.ForumListFromForum = fl; [window addSubview:[self.ForumListFromForum view]]; [fl release]; } The app does not respond to my press and neither of these NSLog calls are made. Any idea where I've gone wrong?

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  • Xcode automatically converts the object to NSArray

    - by Farrukh Javeid
    I have been working on an app and during the development, I am facing a very strange problem. I have a NSMutableArray tempSortedArray, which is full of objects of Store types. All the objects are valid as I can see them in my GUI, the problem arises when I iterate through the array, at index 90, which can be generally anyone, the XCode converts the Store object to NSMutableArray object. Any idea, why this is happening. This is the code to check out what I am doing: NSSortDescriptor *sortDescriptor = [[NSSortDescriptor alloc] initWithKey:@"cashBack" ascending:NO]; NSArray *sortDescriptors = [NSArray arrayWithObject:sortDescriptor]; NSArray *sortedArray = [storesArray sortedArrayUsingDescriptors:sortDescriptors]; for (int i = 0; i < [tempSortedArray count]; i++) { Store *currentStore = [tempSortedArray objectAtIndex:i]; NSLog(@"store class: %@", [currentStore.class description]); if (currentStore.cashBackTypeString != (id)[NSNull null]) { //do whatever is required to do here }

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  • Getting redefinition of View Controller pickerView:titleForRow:forComponent error

    - by pdenlinger
    Hi-- I'm working my way through the book Head First iPhone Development (O'Reilly). Am having trouble on page 68 with the following method and function; I get the error "redefinition of ViewController pickerView:titleForRow:forComponent error. Have checked the code for spaces; seems to be OK. Can you check the code and tell me what's wrong? Thank you. -(NSString *)pickerView:(UIPickerView *)pickerView titleForRow:(NSInteger)row forComponent: (NSInteger)component{ switch (component) { case 0: return [activities objectAtIndex:row]; case 1: return [feelings objectAtIndex:row]; } return nil; }

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  • How to find which method makes my iPhone app slow ?

    - by Stewart Hou
    Currently I am working on a production app. One function acts like the settings.app on iPhone. When the user click a cell of a tableView, as shown below http://www.penguintech.net/images/stackoverflow/1.png It will push another view, which includes a textfield to let user input something. However, on both simulator and device, after the app just loaded, the delay between clicking and showing the second view takes around 2 seconds. Then if user get back to previous view and click again, it will be no delay at all. To detect which method makes the delay, I put a NSLog() in every involved methods, but when I was inspecting the console while running the app, all NSLog() message showed in 0.1 seconds, and then still a delay on the app. Is there any other way to trace the performance footage of a app? The Instruments shows only CPU usage in Mac OS not in iPhone.

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